Relevant bibliographies by topics / Land capability and soil productivity

Academic literature on the topic 'Land capability and soil productivity'

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Published: 10 December 2022
Last updated: 19 February 2023

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Journal articles on the topic "Land capability and soil productivity"

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Ingle, Sagar N., M. S. S. Nagaraju, Priya S. Gadge, D. P. Deshmukh, and N. R. Dange. "GIS based Land Use Suitability of Diversified Cropping Systems in Bareli Watershed." International Journal of Economic Plants 8, no. 4 (November 28, 2021): 231–36. http://dx.doi.org/10.23910/2/2021.0431a.

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A study was undertaken to evaluate the soils in Bareli watershed, Seoni district of Madhya Pradesh for sustainable land use planning. Five soil series namely, Diwartola, Diwara, Bareli-1, Bareli-2 and Bareli-3 were tentatively identified and mapped into twenty-four mapping units and a soil map was generated using remote sensing and Geographic Information System (GIS) techniques. The land information generated during soil survey has been used to evaluate land capability, land irrigability, soil productivity and soil-site suitability for some medicinal, aromatic and spices crops. The soils were grouped into land capability sub-classes IVs and IVst and land irrigability sub-classes 2st, 3s, 3st and 4st. Soils of Diwartola, Bareli-1 and Bareli-3 were average and soils of Diwara and Bareli-2 were poor in soil productivity based on limitations of erosion, drainage and physicochemical properties. Soil-site suitability assessment reveals that soils of Bareli-1 were moderately suitable (S2) for cultivation of medicinal and spices crops like Ashwagandha, Mucana, Davana, Lemongrass, Turmeric and Ginger with moderate limitations of effective depth and slope, while, soils of Diwartola and Bareli-3 were marginally suitable (S3) for cultivation of these crops.
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Swafo, Seome Michael, and Phesheya Eugine Dlamini. "Unlocking the Land Capability and Soil Suitability of Makuleke Farm for Sustainable Banana Production." Sustainability 15, no. 1 (December 27, 2022): 453. http://dx.doi.org/10.3390/su15010453.

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Sub-Saharan Africa (SSA) is experiencing an increase in food insecurity, which is fueled by both high population growth and low agricultural productivity. Smallholder farmers are seriously affected by low soil fertility, land degradation, and poor agronomic management practices that reduce crop productivity. Therefore, there is a huge need for reliable soil information to support agricultural decision-making in smallholder farms to ensure sustainable agricultural production. However, most studies focused on land capability and soil suitability do not consider the spatial variability of soils and their inherent properties. The main objectives of this study were (1) to survey, classify and characterise soils at Makuleke farm in order to derive and map the land capability classes and (2) to quantify the physical and chemical properties of the soils in order to derive and map the suitability classes. A field survey and classification of soils led by transect walks complemented by auger holes revealed existential spatial variation of soils across the 12 ha banana plantation. The dominating soil forms in the plantation were Hutton, Westleigh, Glenrosa and Valsrivier. Land capability analysis revealed that 17% of the 12 ha portion of the farm had very high arable potential, while 60% had medium arable potential, 6% of the farm had low arable potential and 17% was considered non-arable. Subsequent soil suitability analysis revealed that 12% of the farm is highly suitable, 34% is moderately suitable, 38% is marginally suitable and 16% is permanently not suitable for banana production. The variable capability of the land and suitability of soils for banana production led to notable yield gaps. The in-depth description and quantification of the productive capacity of the land is pivotal to the farmers at Makuleke farm as it unlocks their true potential and such information is crucial to effectively manage the soil and utilize the land for sustainable banana production.
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Mujiyo, Mujiyo, Suntoro Suntoro, Rifa Rizhandion Akbar, and Rahayu Rahayu. "Mapping of Agricultural Land Use Change and Effect on Land Capability as a Basis for Land Use Direction in Nguntoronadi-Indonesia." International Journal of Agriculture System 10, no. 1 (July 9, 2022): 13. http://dx.doi.org/10.20956/ijas.v10i1.3644.

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The occurrence of conversion of agricultural land can cause erosion proneness, low fertility soils, and decreased land productivity. Land conversion requires an evaluation of land capability, as a basis for direction to maintain land productivity. This study aims to determine the rate of conversion of agricultural land, land capability class, the determinants of land capability, and direction of land management on initial land and converted land in agricultural land, Nguntoronadi District, Karanganyar Regency. The method used is a survey, with the research area divided into 6 LMU (Land Map Units) represented by 6 sample points in each LMU including 3 points on fixed land and 3 points on converted land, resulting in 36 samples determined by purposive sampling. The research stages include; 1) Pre survey, 2) Survey, 3) Post survey. The results of the study show that the land-use change from 2011 to 2020 covers an area of 258.56 ha and a rate of 28.73 ha per year. The land capability of the research area on fixed land and converted land is classified into land capability III and class IV. Factors that determine land capability include soil erodibility and drainage. The recommended direction for land use and management for Nguntoronadi District is the provision of green manure, making terracing, and making drainage irrigation
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Miller, F. P., and M. K. Wali. "Soils, land use and sustainable agriculture: A review." Canadian Journal of Soil Science 75, no. 4 (November 1, 1995): 413–22. http://dx.doi.org/10.4141/cjss95-061.

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Viewing soils in the full context of landscape ecology is imperative. Both land and its component soil resources are finite. The biological capability of the earth’s ecosystems is limited, even though agriculture productivity has been manipulated by genetic selection of plants, adjusting nutrient flows, managing water, and controlling pests. However, these interventions also have serious economic and environmental repercussions. Increasing populations require more space, more food, more fuels and more of other resources. For soil scientists, the challenge is to (a) understand soil processes, (b) characterize and map soil resources, and (c) predict soil behavior under a variety of potential uses in the interest of providing society and its governing institutions with options and trade-offs in land use decisions. Global and regional economic and agricultural productivity will depend solely on our ability to increase productivity by (a) making economic–agricultural development congruent with ecological and social–political realities, (b) proper use and conservation of indigenous genetic resources, and (c) rehabilitating disturbed and degraded ecosystems. In this review, we assess these considerations and suggest needed strategies. Key words: Productivity, sustainable agriculture, land use, food security, soil quality
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BENNETT, D. R., and T. ENTZ. "IRRIGATION SUITABILITY OF SOLONETZIC SOILS IN THE COUNTY OF NEWELL, ALBERTA." Canadian Journal of Soil Science 70, no. 4 (November 1, 1990): 705–15. http://dx.doi.org/10.4141/cjss90-072.

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A 5-yr study was conducted in the County of Newell to monitor soil salinity and sodicity, water-table levels and crop production on Solonetzic soil associations under normal irrigation management practices. All soil associations consisted of at least 50 percent Solonetzic Order soils, with Brown Solod as the dominant subgroup at all but one site. Changes in soil quality were monitored through regular measurements of water-table levels, annual fall sampling and chemical analysis of soils. Irrigation practises used by farmers did not permanently raise water-table levels at any of the sites irrigated by center pivots. Changes in soil salinity or sodicity as a result of irrigation were generally not statistically significant, suggesting that the salt status of soils at most sites did not change appreciably over the 5-yr period. The relatively low productive capability of land units dominated by Solonetzic soils was evident in the low yield and by a high degree of variability in yield within individual sites. Careful irrigation management partially compensated for some of the soil limitations in these Solonetzic soil landscapes; however, due to the low productivity observed, modification of existing land classification standards to allow irrigation of Solonetzic soils is not presently recommended. Key words: Irrigation suitability, Solonetzic soils, productive capability
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LÉVESQUE, M., S. P. MATHUR, and H. DINEL. "ADMIXING ORGANIC OVERLAYS AND MINERAL SUBLAYERS OF SHALLOW PEAT SOILS FOR IMPROVING SOIL PRODUCTIVITY." Canadian Journal of Soil Science 68, no. 4 (November 1, 1988): 775–86. http://dx.doi.org/10.4141/cjss88-075.

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This growth room and greenhouse study with 13 subsoils and organic overlays was aimed at developing crop choices and strategies for continued land use of shallow organic soils and at refining the criteria used for assessing the long-term agricultural capability of deep organic soils. Soil materials from four geoprovinces in Canada were mixed in various volume/volume proportions to provide 25 different soil media. Root, leafy vegetable and grass crops were grown on each soil. All pots were adequately fertilized and watered. A gyttja-layer of marine-fecal origin that acidifies rapidly on exposure to air was rendered productive on admixing with an adjacent layer rich in Ca-containing molluscan-shells. Generally, all clay, sand and silt sublayers improved on admixing with organic overlays. At the same time, the organic overlays did not become markedly less productive on being mixed with mineral sublayers in 1:1 volume proportions except when the sublayers were clays. Yields decreased when clays formed more than 25% of the mixture by volume, particularly when the crops grown were vegetables. Key words: Peat soils, soil management, soil productivity
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Udoh, B. T., and T. O. Ibia. "Fertility capability classification for agricultural land use planning in the beach sands area of Akwa Ibom State, Nigeria." Agro-Science 21, no. 2 (June 22, 2022): 74–78. http://dx.doi.org/10.4314/as.v21i2.8.

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Soil survey and fertility capability classification (FCC) were carried out in an area mostly underlain by the beach ridge sands (BRS) parent material in Akwa Ibom State, Nigeria. The study applied the FCC in agricultural land use planning for efficient land management and optimal agricultural productivity of the beach soils. Field and laboratory data were obtained from 40 pedons located across eight Local Government Areas on the BRS parent material. From the results of field and laboratory studies, 11 FCC units were identified in the area. Based on similarities in certain soil profile characteristics, the 11 FCC units were grouped into four agro-ecological units (AEUs): (i) poorly drained FCC units with sandy topsoil over sandy subsoil, grouped to form AEU-A, covered 65.00% of study area; (ii) well drained FCC units with sandy topsoil over sandy subsoil, formed AEU-B and covered 22.50% of study area; (iii) poorly drained FCC units with sandy topsoil over loamy subsoil or loamy top- and sub- soils, formed AEU-C and covered 7.50% of study area; (iv) well drained FCC units with sandy topsoil over loamy subsoil, which formed AEU-D, occupied 5.00% of study area. The result of this study has shown that FCC can be employed as a simple but efficient tool in agricultural land use planning. Major soil profile characteristics used to differentiate land units within the beach sands area of Akwa Ibom State are drainage and texture.
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Abu-Hashim, Mohamed, Ahmed Sayed, Martina Zelenakova, Zuzana Vranayová, and Mohamed Khalil. "Soil Water Erosion Vulnerability and Suitability under Different Irrigation Systems Using Parametric Approach and GIS, Ismailia, Egypt." Sustainability 13, no. 3 (January 20, 2021): 1057. http://dx.doi.org/10.3390/su13031057.

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Preserving the sustainable agriculture concept requires identifying the plant response to the water regime and rationing the water for irrigation. This research compares different irrigation designs coupled with a parametric evaluation system on soil water erosion and soil suitability to assess the sites vulnerable to soil erosion based on a soil water erosion model (ImpelERO) in an area of 150.0 hectares, Ismailia Governorate, Egypt. Land suitability maps are prepared using the Geographic Information System (GIS), and the soil properties are analyzed and evaluated for the different surface, sprinkler, and drip irrigation methods. The results show that the sprinkler and drip irrigation strategies are more practical irrigation methods and additional environment friendly than surface irrigation for enhancing land productivity. Moreover, the principle acumen for creating use of the surface irrigation on this space is for lowering the soil salinity. Land capability index for surface irrigation ranges from 20.5 to 72.2% (permanently not suitable N2 to moderately suitable S2); and the max capability index (Ci) for drip irrigation was 81.3% (highly suitable-S1), while the mean capability index (Ci) was 42.87% (Currently not suitable-NI). The land suitability of the study area using sprinkler irrigation was ranked as highly suitable (S1), moderately suitable (S2), marginally suitable (S3), and currently not suitable (N1). Thus, the obtained data indicated that applying drip irrigation (trickle irrigation) was the most efficient system compared to the sprinkle and surface irrigation systems. To identify the soil, water erosion vulnerability, and soil optimal management strategies for the agricultural parcel in that region, the ImpelERO model (soil erosion vulnerability/impact/management) was applied. Erosion risk classes ranged from V2 (small) to V3 (moderate), that that region categorized as small-sensitive to water erosion by alfalfa, to moderate-sensitive to water erosion by olive. The results of soil losses varied from 7.1 to 37.9 t ha−1 yr−1 with an average of 17.7 t ha−1 yr−1. Thus, guarantee efficient water use and soil suitability for food production in the future will require the use of an efficient irrigation system.
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Caldas, Anildo, Teresa Pissarra, Renata Costa, Fernando Neto, Marcelo Zanata, Roberto Parahyba, Luis Sanches Fernandes, and Fernando Pacheco. "Flood Vulnerability, Environmental Land Use Conflicts, and Conservation of Soil and Water: A Study in the Batatais SP Municipality, Brazil." Water 10, no. 10 (September 29, 2018): 1357. http://dx.doi.org/10.3390/w10101357.

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In many regions across the planet, flood events are now more frequent and intense because of climate change and improper land use, resulting in risks to the population. However, the procedures to accurately determine the areas at risk in regions influenced by inadequate land uses are still inefficient. In rural watersheds, inadequate uses occur when actual uses deviate from land capability, and are termed environmental land use conflicts. To overcome the difficulty to evaluate flood vulnerability under these settings, in this study a method was developed to delineate flood vulnerability areas in a land use conflict landscape: the Batatais municipality, located in the State of São Paulo, Brazil. The method and its implementation resorted to remote sensed data, geographic information systems and geo-processing. Satellite images and their processing provided data for environmental factors such as altitude, land use, slope, and soil class in the study area. The importance of each factor for flood vulnerability was evaluated through the analytical hierarchy process (AHP). According to the results, vast areas of medium to high flood vulnerability are located in agricultural lands affected by environmental land use conflicts. In these areas, amplified flood intensities, soil erosion, crop productivity loss and stream water deterioration are expected. The coverage of Batatais SP municipality by these vulnerable areas is so extensive (60%) that preventive and recovery measures were proposed in the context of a land consolidation–water management plan aiming flood control and soil and water conservation.
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Renaldi, Dito Cahya, I. Nengah Surati Jaya, and Omo Rusdiana. "Study on Community’s Land Allocation in Long Pahangai District." Indonesian Journal of Electrical Engineering and Computer Science 3, no. 3 (September 1, 2016): 564. http://dx.doi.org/10.11591/ijeecs.v3.i3.pp564-571.

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<p>Land use allocation for community has been a crucial process for supporting the spatial allocation either at the regency or provincial level. This study was emphasized on the analysis of land allocation at the district level. The study applied a linear programming approach to optimize the land use in Long Pahangai District then linked with the spatial information. The optimization considered several factors, i.e., land productivity, the degree of erosion and the preference of the community living in the study area. To support the optimization, the availability of land use was determined by considering the land capability using the query tools in the Geographic Information System. The level of land capability applied five constraints, namely, slope, drainage, soil texture, effective depth and erosion. The study found that the optimal allocation of land use in the study area are primary forest of 6,635.11 ha (25.19%), secondary forest of 19,025.7 ha (71.9%), mixed plantation area of 289.61 ha (1.1%), settlement area of 8.3 ha (0.03%) and rice field of 487.35 ha (1.844%). This optimal allocation might increase the community income per capita by approximately 80% from 9,602,000.- to 17,275,171.-/capita/ha/year. </p>
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Dissertations / Theses on the topic "Land capability and soil productivity"

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Mulumba, Lukman Nagaya. "Land use effects on soil quality and productivity in the Lake Victoria Basin of Uganda." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1095711869.

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Thesis (Ph. D.)--Ohio State University, 2004.
Title from first page of PDF file. Document formatted into pages; contains xv, 166 p.; also includes graphics (some col.). Includes bibliographical references (p. 134-153).
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Muratore, Thomas Joseph Jr. "LONG-TERM LAND MANAGEMENT PRACTICES AND THEIR EFFECT ON SOIL HEALTH AND CROP PRODUCTIVITY." UKnowledge, 2019. https://uknowledge.uky.edu/pss_etds/115.

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Agricultural intensification reliant on monocrops could change soil health in a way that does not support maximum crop productivity. Twenty-nine-year-old no-till field plots at the University of Kentucky Spindletop research farm showed a significant reduction in corn yields from continuous corn plots compared to those from plots in various types of rotation. The objective of this study was to determine what role soil microbes might play in yield reduction and how management and time effects microbial community structure. Samples were collected from the following treatments: continuous corn (CC), continuous soybean (SS), a 2-year corn/soybean rotation (CCSS), Corn in rotation with soybean with winter wheat cover (C/W/S), and sod controls (SOD). Soil health-related parameters were determined along with microbial community structure using phospholipid fatty acid analysis (PLFA). Results show that there is a strong seasonal dynamic in microbial communities with May, July and September showing the greatest differentiation between treatments. Nonparametric multidimensional analysis (NMDS) shows that microbial communities under SS, CC treatments were significantly different from the CS and CWS treatments across all four years of the study. My findings will prove useful for assessing the contribution of biological indicators to agroecosystem function and will aid in making recommendations of when and how to manage these parameters to improve soil health and maximize yield.
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Andrews, Jeffrey Adam. "Soil productivity model to assess forest site quality on reclaimed surface mines." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09052009-040211/.

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Ekbom, Anders. "Economic analysis of soil capital, land use and agricultural production in Kenya." Göteborg : Department of Economics, School of Business, Economics and Law, Göteborg University, 2007. http://hdl.handle.net/2077/8469.

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Lueth, Daniela [Verfasser]. "Land tenure arrangements, soil conservation measures and productivity in Brong Ahafo Region of Ghana / Daniela Lueth." Kiel : Universitätsbibliothek Kiel, 2019. http://d-nb.info/1198210532/34.

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Florence, Darlene Christina. "Agronomic Land Management Effects on Soil Fertility and Grain Crop Productivity in Western Kenya and Ohio." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338341162.

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Timmerman, Mitchell D. "The effects of a crude oil spill on the crop productivity and biological quality of an agricultural soil, and the potential for phytoremediation of crude oil-contaminated land." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0006/MQ45127.pdf.

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Ford, Colleen D. "The fate of nitrogen in lactose-depleted dairy factory effluent irrigated onto land." Lincoln University, 2008. http://hdl.handle.net/10182/837.

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A two-year lysimeter study was undertaken to compare the environmental effects (e.g. nitrate leaching and nitrous oxide emissions) of soil applied lactose-depleted dairy factory effluent (LD-DFE) with lactose-rich DFE. The aim of this experiment was to determine the fate of nitrogen from LD-DFE and dairy cow urine applied to a Templeton fine sandy loam soil (Udic Ustrochrept), supporting a herbage cover of ryegrass (Lolium perenne) and white clover (Trifolium repens). Measurements were carried out on the amount of nitrogen lost from the soil via leaching, lost by denitrification, removed by the pasture plants, and immobilized within the soil organic fraction. Further, a comparison between the fate of nitrogen in LD-DFE irrigated onto land under a "cut and carry" system, as opposed to a "grazed" pasture system was undertaken. Lactose-depleted dairy factory effluent was applied at three-weekly intervals during the summer months at rates of 25 and 50 mm, until nitrogen loading targets of 300 and 600 kg N ha⁻¹ yr⁻¹ had been achieved. Measured leaching losses of nitrogen averaged 2 and 7 kg N ha⁻¹ yr⁻¹ for Control 25 and Control 50 treatments; 21, 20 and 58 kg N ha⁻¹ yr⁻¹ for 25 and 50 mm "cut and carry" treatments respectively; and 96 kg N ha⁻¹ yr⁻¹ for the 25 mm "grazed" treatment. The range of nitrate-N leaching loss from LD-DFE plus urine is no different from the lactose-rich DFE nitrate leaching loss. Uptake of nitrogen by the growing pasture averaged 153, 184,340,352,483, and 415 kg N ha⁻¹ yr⁻¹ for Control 25, Control 50, LD-DFE 25 and LD-DFE 50 mm "cut and carry" treatments, and the LD-DFE 25 mm "grazed" treatment, respectively. Denitrification losses were 0.06, 4.4, 1.69, 19.70, and 7.4 kg N ha⁻¹ yr⁻¹ for Control 25, the LD-DFE 25 "cut and carry" treatments, the LD-DFE 25 mm "grazed" treatment, and calculated "paddock losses", respectively. Isotopic nitrogen studies found that 29.4 and 25.8% of applied LD-DFE nitrogen was immobilised in the LD-DFE 25 and LD-DFE 50 "cut and carry" treatments. The results of this experiment confirm the findings of the previous lactose-rich DFE study, in that the effects of grazing stock are of greater environmental concern than the removal of lactose from the effluent waste stream.
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Condron, Leo M. "Chemical nature and plant availability of phosphorus present in soils under long-term fertilised irrigated pastures in Canterbury, New Zealand." Lincoln College, University of Canterbury, 1986. http://hdl.handle.net/10182/1875.

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Soil P fractionation was used to examine changes in soil inorganic and organic P under grazed irrigated pasture in a long-term field trial at Winchmore in Mid-Canterbury. The soil P fractionation scheme used involved sequential extractions of soil with O.5M NaHCO₃ @ pH 8.5 (NaHCO₃ P), 0.1M NaOH (NaOH I P), 1M HCl (HCl P) and 0.1M NaOH (NaOH II P). The Winchmore trial comprised 5 treatments: control (no P since 1952), 376R (376 kg superphosphate ha⁻¹ yr⁻¹ 1952-1957, none since), 564R (564 kg superphosphate ha⁻¹ yr⁻¹ 1952-1957, none since) 188PA (188 kg superphosphate ha⁻¹ yr⁻¹ since 1952) and 376PA (376 kg superphosphate ha⁻¹ yr⁻¹ since 1952: Topsoil (0-7.5cm) samples taken from the different treatments in 1958, 1961, 1965, 1968, 1971, 1974 and 1977 were used in this study. Changes in soil P with time showed that significant increases in soil inorganic P occurred in the annually fertilised treatments (l88PA, 376PA). As expected, the overall increase in total soil inorganic P between 1958 and 1977 was greater in the 376PA treatment (159 µg P g⁻¹) than that in the 188PA treatment (37 µg P g⁻¹). However, the chemical forms of inorganic P which accumulated in the annually fertilised treatments changed with time. Between 1958 and 1971 most of the increases in soil inorganic P in these treatments occurred in the NaHCO₃ and NaOH I P fractions. On the other hand, increases in soil inorganic P in the annually fertilised treatments between 1971 and 1977 were found mainly in the HCl and NaOH II P fractions. These changes in soil P forms were attributed to the combined effects of lime addition in 1972 and increased amounts of sparingly soluble apatite P and iron-aluminium P in the single superphosphate applied during the 1970's. In the residual fertiliser treatments (376R, 564R) significant decreases in all of the soil inorganic P fractions (i.e. NaHCO₃ P, NaOH I P, HCl P, NaOH II p) occurred between 1958 and 1977 following the cessation of P fertiliser inputs in 1957. This was attributed to continued plant uptake of P accumulated in the soil from earlier P fertiliser additions. However, levels of inorganic P in the different soil P fractions in the residual fertiliser treatments did not decline to those in the control which indicated that some of the inorganic P accumulated in the soil from P fertiliser applied between 1952 and 1957 was present in very stable forms. In all treatments, significant increases in soil organic P occurred between 1958 and 1971. The overall increases in total soil organic P were greater in the annually fertilised treatments (70-86 µg P g⁻¹) than those in the residual fertiliser (55-64 µg P g⁻¹) and control (34 µg P g⁻¹) treatments which reflected the respective levels of pasture production in the different treatments. These increases in soil organic P were attributed to the biological conversion of native and fertiliser inorganic P to organic P in the soil via plant, animal and microbial residues. The results also showed that annual rates of soil organic P accumulation between 1958 and 1971 decreased with time which indicated that steady-state conditions with regard to net 'organic P accumulation were being reached. In the residual fertiliser treatments, soil organic P continued to increase between 1958 and 1971 while levels of soil inorganic P and pasture production declined. This indicated that organic P which accumulated in soil from P fertiliser additions was more stable and less available to plants than inorganic forms of soil P. Between 1971 and 1974 small (10-38 µg P g⁻¹) but significant decreases in total soil organic P occurred in all treatments. This was attributed to increased mineralisation of soil organic P as a result of lime (4 t ha⁻¹) applied to the trial in 1972 and also to the observed cessation of further net soil organic P accumulation after 1971. Liming also appeared to affect the chemical nature of soil organic P as shown by the large decreases in NaOH I organic P(78-88 µg P g⁻¹) and concomitant smaller increases in NaOH II organic P (53-65 µg P g⁻¹) which occurred in all treatments between 1971 and 1974. The chemical nature of soil organic P in the Winchmore long-term trial was also investigated using 31p nuclear magnetic resonance (NMR) spectroscopy and gel filtration chromatography. This involved quantitative extraction of organic P from the soil by sequential extraction with 0.1M NaOH, 0.2M aqueous acetylacetone (pH 8.3) and 0.5M NaOH following which the extracts were concentrated by ultrafiltration. Soils (0-7.5cm) taken from the control and 376PA annually fertilised treatments in 1958, 1971 and 1983 were used in this study. 31p NMR analysis showed that most (88-94%) of the organic P in the Winchmore soils was present as orthophosphate monoester P while the remainder was found as orthophosphate diester and pyrophosphate P. Orthophosphate monoester P also made up almost all of the soil organic P which accumulated in the 376PA treatment between 1958 and 1971. This indicated that soil organic P in the 376PA and control treatments was very stable. The gel filtration studies using Sephadex G-100 showed that most (61-83%) of the soil organic P in the control and 376PA treatments was present in the low molecular weight forms (<100,000 MW), although the proportion of soil organic P in high molecular weight forms (>100,000 MW) increased from 17-19% in 1958 to 38-39% in 1983. The latter was attributed to the microbial humification of organic P and indicated a shift toward more complex and possibly more stable forms of organic P in the soil with time. Assuming that the difference in soil organic P between the control and 376PA soils sampled in 1971 and 1983 represented the organic P derived from P fertiliser additions, results showed that this soil organic P was evenly distributed between the high and low molecular weight fractions. An exhaustive pot trial was used to examine the relative availability to plants of different forms of soil inorganic and organic P in long-term fertilised pasture soils. This involved growing 3 successive crops of perennial ryegrass (Lolium perenne) in 3 Lismore silt loam (Udic Ustochrept) soils which had received different amounts of P fertiliser for many years. Two of the soils were taken from the annually fertilised treatments in the Winchmore long term trial (188PA, 376PA) and the third (Fairton) was taken from a pasture which had been irrigated with meatworks effluent for over 80 years (65 kg P ha⁻¹ yr⁻¹). Each soil was subjected to 3 treatments, namely control (no nutrients added), N100 and N200. The latter treatments involved adding complete nutrient solutions with different quantities of N at rates of 100kg N ha⁻¹ (N100) and 200kg N ha⁻¹ (N200) on an area basis. The soil P fractionation scheme used was the same as that used in the Winchmore long-term trial study (i.e. NaHCO₃ P, NaOH I P, HCl P, NaOH II p). Results obtained showed that the availability to plants of different extracted inorganic P fractions, as measured by decreases in P fractions before and after 3 successive crops, followed the order: NaHCO₃ P > NaOH I P > HCl P = NaOH II P. Overall decreases in the NaHCO₃ and NaOH I inorganic P fractions were 34% and 16% respectively, while corresponding decreases in the HCl and NaOH II inorganic P fractions were small «10%) and not significant. However, a significant decrease in HCl P (16%) was observed in one soil (Fairton-N200 treatment) which was attributed to the significant decrease in soil pH (from 6.2 to 5.1) which occurred after successive cropping. Successive cropping had little or no effect on the levels of P in the different soil organic P fractions. This indicated that net soil organic P mineralisation did not contribute significantly to plant P uptake over the short-term. A short-term field experiment was also conducted to examine the effects of different soil management practices on the availability of different forms of P to plants in the long-term fertilised pasture soils. The trial was sited on selected plots of the existing annually fertilised treatments in the Winchmore long-term trial (188PA, 376PA) and comprised 5 treatments: control, 2 rates of lime (2 and 4 t ha⁻¹ ) , urea fertiliser (400kg N ha⁻¹ ) and mechanical cultivation. The above ground herbage in the uncultivated treatments was harvested on 11 occasions over a 2 year period and at each harvest topsoil (0-7.5 cm) samples were taken from all of the treatments for P analysis. The soil P fractionation scheme used in this particular trial involved sequential extractions with 0.5M NaHCO₃ @ pH 8.5 (NaHCO₃ P), 0.1M NaOH (NaOH P), ultrasonification with 0.1M NaOH (sonicate-NaOH p) and 1M HCl (HCl P). In addition, amounts of microbial P in the soils were determined. The results showed that liming resulted in small (10-21 µg P g⁻¹) though significant decreases in the NaOH soil organic P fraction in the 188PA and 376PA plots. Levels of soil microbial P were also found to be greater in the limed treatments compared with those in the controls. These results indicated that liming increased the microbial mineralisation of soil organic P in the Winchmore soils. However, pasture dry matter yields and P uptake were not significantly affected. Although urea significantly increased dry matter yields and P uptake, it did not appear to significantly affect amounts of P in the different soil P fractions. Mechanical cultivation and the subsequent fallow period (18 months) resulted in significant increases in amounts of P in the NaHCO₃ and NaOH inorganic P fractions. This was attributed to P released from the microbial decomposition of plant residues, although the absence of plants significantly reduced levels of microbial P in the cultivated soils. Practical implications of the results obtained in the present study were presented and discussed.
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O'Brien, Patricia Ann, and patricia o'brien@rmit edu au. "COncepts and costs for the maintenance of productive capacity: a study of the measurement and reporting of soil quality." RMIT University. Accounting and Law, 1999. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20040930.170346.

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This thesis studies the role accounting plays in the monitoring and reporting of soil quality in one sector of the agricultural industry, broadacre farming. A survey was conducted with broadacre farmers in the Loddon Catchment, Victoria, Australia. The primary aim was to determine the effectiveness accounting plays in providing information to decision makers relative to the productive capacity in soil quality and not just on profits. The capital asset in this study was defined as soil quality. Soils and soil quality in particular, are major elements in determining land value. The concern is decisions are being made by potential buyers and other decision makers, particularly policy makers, with regards to soil quality on the basis of incomplete and often misleading information. It is proposed that a major reason is due to the fact that different participants in the agricultural and accounting industries require and use different information. The accounting systems used by farmers are those that have been developed for the manufacturing sector which may not be appropriate for managing long-term, complex resources such as soil. The farmers themselves did not find formal accounting reports useful for decision making because these reports are based on uniform standards and market prices. The topic of soil quality and land degradation is viewed from two perspectives. In one perspective, the proprietary view; the accounting emphasis is on the ownership of assets and the change, both in income and capital, in these assets over time. In this case the accounting equation is seen as assets - liabilities = equities. The proprietor takes all the risk. A more recent perspective in accounting, the entity view, emphasises the assets whether financed from equity or debt and where the accounting equation is seen as assets = equities. The emphasis changes to the income flow from these assets and more interest is shown in current market prices as a reflection of the future value of these assets Profit is not necessarily a good indicator of what farmers are doing for their capital asset. There needs to be greater emphasis on costs undertaken for the conservation of soil. Those costs should be considered an investment and put into the balance sheet and not the profit and loss statement. The major finding of study demonstrates that decision making groups have different
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Books on the topic "Land capability and soil productivity"

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Heimlich, Ralph E. Productivity and erodibility of U.S. cropland. Washington, DC: U.S. Dept. of Agriculture, Economic Research Service, 1989.

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Heimlich, Ralph E. Productivity and erodibility of U.S. cropland. Washington, DC: U.S. Dept. of Agriculture, Economic Research Service, 1989.

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Indian Council of Agricultural Research. National Bureau of Soil Survey and Land Use Planning. Optimising land use of Birbhum District, West Bengal: Soil resource assessment. Nagpur: National Bureau of Soil Survey and Land Use Planning in cooperation with Dept. of Agriculture, Govt. of West Bengal, Kolkata, 2007.

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Pease, James R. Land evaluation and site assessment: A guidebook for rating agricultural lands. 2nd ed. Ankeny, IA: Soil and Water Conservation Society, 1996.

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Pease, James R. Land evaluation and site assessment: A guidebook for rating agricultural lands. 2nd ed. Ankeny, Iowa: Soil and Water Conservation Society, 1996.

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Wiebe, Keith Daniel. Linking land quality, agricultural productivity, and food security. Washington, D.C: United States, Dept. of Agriculture, Economic Research Service, 2003.

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Wiebe, Keith Daniel. Linking land quality, agricultural productivity, and food security. Washington, D.C: U.S. Dept. of Agriculture, Economic Research Service, 2003.

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Wiebe, Keith Daniel. Linking land quality, agricultural productivity, and food security. Washington, D.C: United States, Dept. of Agriculture, Economic Research Service, 2003.

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1962-, Wiebe Keith Daniel, ed. Land quality, agricultural productivity, and food security: Biophysical processes and economic choices at local, regional, and global levels. Northampton, MA: Edward Elgar Pub., 2003.

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Hiley, J. An assessment of the association between agricultural production and land quality for regional planning. Ottawa: Research Branch, Agriculture and Agri-Food Canada, 1996.

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Book chapters on the topic "Land capability and soil productivity"

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Morgan, Cristine L. S., Yohannes T. Yimam, Michael Barlage, David Gochis, and Bright Dornblaser. "Valuing of Soil Capability in Land Surface Modeling." In Progress in Soil Science, 53–61. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-43394-3_5.

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Oschwald, William R. "Quantitative Aspects of Soil Survey Interpretation in Appraisal of Soil Productivity." In Soil Surveys and Land Use Planning, 152–59. Madison, WI, USA: Soil Science Society of America and American Society of Agronomy, 2015. http://dx.doi.org/10.2136/1966.soilsurveys.c17.

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Sivakumar, Mannava V. K. "Climate and Land Degradation." In Sustaining Soil Productivity in Response to Global Climate Change, 141–54. Oxford, UK: Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9780470960257.ch10.

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Flader, Susan L. "Aldo Leopold and the Land Ethic." In Sustaining Soil Productivity in Response to Global Climate Change, 43–65. Oxford, UK: Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9780470960257.ch4.

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Harahsheh, Hussein, Mohamed Mashroom, Yousef Marzouqi, Eman Al Khatib, B. R. M. Rao, and M. A. Fyzee. "Soil Thematic Map and Land Capability Classification of Dubai Emirate." In Developments in Soil Classification, Land Use Planning and Policy Implications, 133–46. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-5332-7_5.

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Rustu, Tewoldemedhin D. "Agricultural Land Conversion: Application of Land Capability Classification in Land-Use Planning of Embaderho Village in Eritrea." In Developments in Soil Classification, Land Use Planning and Policy Implications, 523–33. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-5332-7_29.

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Magier, Joshua, and Israela Ravina. "Rock Fragments and Soil Depth as Factors in Land Evaluation of Terra Rossa." In Erosion and Productivity of Soils Containing Rock Fragments, 13–30. Madison, WI, USA: Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssaspecpub13.c3.

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Eglin, Thomas, Philippe Ciais, Shi Long Piao, Pierre Barré, Valentin Belassen, Patricia Cadule, Claire Chenu, Thomas Gasser, Markus Reichstein, and Pete Smith. "Overview on Response of Global Soil Carbon Pools to Climate and Land-Use Changes." In Sustaining Soil Productivity in Response to Global Climate Change, 183–99. Oxford, UK: Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9780470960257.ch13.

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Owoade, Folasade Mary, Samuel Godfried Kwasi Adiku, Christopher John Atkinson, and Dilys Sefakor MacCarthy. "Differential Impact of Land Use Types on Soil Productivity Components in Two Agro-ecological Zones of Southern Ghana." In African Handbook of Climate Change Adaptation, 1721–33. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_144.

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AbstractThe maintenance of soil productivity is important for sustained crop yield in low-input systems in the tropics. This study investigated the impact of four different land use types, namely, maize and cassava cropping, woodlot/plantations, and natural forests on soil productivity components, especially soil carbon accretion, at six sites within two agro-ecological zones of southern Ghana. Soil properties were significantly different between sites and ecological zones. The coastal savanna zones, which is a low rainfall zone had relatively lower soil carbon storage than the high rainfall forest-savanna transition zone. Soil productivity conditions in the later zone were much more favorable for cropping than the former. Land use types significantly affected the soil carbon (SOC) storage within the two ecological zones. In the low rainfall zone, soil carbon accretion by maize cropping, cassava cropping, and plantations were 48%, 54%, and 60%, respectively, of the forest carbon stock (47,617 kg/ha). In the transition zone, the soil carbon accretion was over 90% of the forest value (48,216 kg/ha) for all land use types. In effect use of land use types in maintaining soil productivity must consider the conditions in a given ecological zone.
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Thomas, D. A., and V. R. Squires. "Available soil moisture as a basis for land capability assessment in semi arid regions." In Vegetation and climate interactions in semi-arid regions, 183–89. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3264-0_14.

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Conference papers on the topic "Land capability and soil productivity"

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Nizeyimana, Egide, Gary W. Petersen, Eric D. Warner, Xuenzheng Shi, Marc L. Imhoff, William T. Lawrence, and Joseph M. Russo. "An assessment of soil productivity loss caused by expanding urban land use using remote sensing and soil productivity models." In AIP Conference Proceedings Volume 387. ASCE, 1997. http://dx.doi.org/10.1063/1.51991.

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Cunningham, Tom, Allen Medlock, Matt Sandefur, and Jack Rowse. "High-Productivity, Low-Cost, Gas Turbine System Modeling Software." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68424.

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Honeywell Engines Systems & Services has written Fast Accurate Simulation of Turbine engines (FAST), a gas turbine system modeling program. Software design and development concepts, capabilities, and improved problem solving using FAST are discussed. Software design emphasis was placed on improving an engineer’s productivity, being easy to learn and use, adding new capability, and having low development and maintenance costs. Capability to replace all legacy modeling software, and make conversion of old models to the new model format simple was also required. The result was a significant increase in the productivity of the performance engineering staff in their efforts to support the design, development, and production, of gas turbine engines. FAST has provided the performance engineering staff with a simple but powerful input language and a robust numerical solver. With FAST, the user can perform preliminary engine design, model steady-state and transient off-design conditions, perform test data analysis, perform system modeling (multiple engine, installations, and engine/vehicle), connect FAST to other software, and generate customer programs quickly with auto-code features. FAST has permitted significant orders of magnitude increase in the volume of cycle analysis coupled with a 70% reduction in engineering staff and an 80% reduction in software development staff.
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David, Gheorghe. "SOIL AND CLIMATE FACTORS THAT DEFINE LAND PRODUCTIVITY IN THE LOWER PLAIN OF BANAT." In 18th International Multidisciplinary Scientific GeoConference SGEM2018. Stef92 Technology, 2018. http://dx.doi.org/10.5593/sgem2018/3.2/s13.061.

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Mashtykov, Kirill, and Elvira Dedova. "GEOECOLOGICAL ASSESSMENT OF PASTURE PHYTOCENOSES IN THE DESERT ZONE OF THE REPUBLIC OF KALMYKIA." In Land Degradation and Desertification: Problems of Sustainable Land Management and Adaptation. LLC MAKS Press, 2020. http://dx.doi.org/10.29003/m1676.978-5-317-06490-7/62-65.

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Based on long-term monitoring, the geoecological assessment of pasture phytocenoses in the desert zone of the Republic of Kalmykia under the influence of anthropogenic and climatic factors is given. It is established that excessive pasture load leads to degradation processes of vegetation and soil cover: a wide spread of explerents ( Eragrostis minor, Amaranthus albus ), depletion of the floral composition by 2 times, a decrease in productivity and feed value of pastures, an increase in the area of flown Sands.
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Gladysheva, Ol'ga, Oksana Artyuhova, and Vera Svirina. "Crop rotations with clover and their productivity." In Multifunctional adaptive fodder production23 (71). ru: Federal Williams Research Center of Forage Production and Agroecology, 2020. http://dx.doi.org/10.33814/mak-2020-23-71-38-42.

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The results of long-term research in experiments with crop rotations with different clover saturation are presented. It is shown that the cluster has a positive effect on the main indicators of vegetation of dark-gray forest soil. The introduction of two fields of perennial grasses into the six-field crop rotation significantly increases both the humus reserves and increases the productivity of arable land by 1.5–2 times compared to the crop rotation with a field of pure steam.
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Sharifi, M. B., and N. T. S. Wijesekera. "Possibility of Increasing the Land and Water Productivity of Command Area in Labunoruwa Irrigation Tank, Anuradapura, Sri Lanka." In UMCSAWM Water Conference on Demonstrating the strength of water Engineering and Management capability through case study applications. UNESCO Madanjeet Singh Centre for South Asia Water Management, 2017. http://dx.doi.org/10.31705/umcsawm.19.

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Turlakova, Teodorina. "ENVIRONMENTAL SUSTAINABILITY OF AGRICULTURAL LAND RESOURCES." In SUSTAINABLE LAND MANAGEMENT - CURRENT PRACTICES AND SOLUTIONS 2019. University publishing house "Science and Economics", University of Economics - Varna, 2021. http://dx.doi.org/10.36997/slm2019.115.

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Agriculture is a sector where the impact of climate change leads to high risk and vulnerability in the activities of farmers. The negative effects are reflected in the direction of changes in agricultural land, decrease in productivity, soil erosion, salinization, deterioration of crop conditions and others. Solving such problems is a challenge for farmers trying to balance the need to produce enough food and the negative effects of using farmland in an environmentally sustainable way. The purpose of this report is to identify the main features of the concept of environmental sustainability in the use of land resources, to derive the basic sustainability criteria, and to analyze the state of land resources on the basis of substantiated criteria.
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Torralba, Jesús, Luis Á. Ruiz, Charalampos Georgiadis, Petros Patias, Rodrigo Gómez-Conejo, Natalia Verde, Maria Tassapoulou, et al. "METHODOLOGICAL PROPOSAL FOR THE IDENTIFICATION OF MARGINAL LANDS WITH REMOTE SENSING-DERIVED PRODUCTS AND ANCILLARY DATA." In 3rd Congress in Geomatics Engineering. Valencia: Universitat Politècnica de València, 2021. http://dx.doi.org/10.4995/cigeo2021.2021.12729.

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The concept of marginal land (ML) is dynamic and depends on various factors related to the environment, climate, scale,culture, and economic sector. The current methods for identifying ML are diverse, they employ multiple parameters andvariables derived from land use and land cover, and mostly reflect specific management purposes. A methodologicalapproach for the identification of marginal lands using remote sensing and ancillary data products and validated on samplesfrom four European countries (i.e., Germany, Spain, Greece, and Poland) is presented in this paper. The methodologyproposed combines land use and land cover data sets as excluding indicators (forest, croplands, protected areas,impervious areas, land-use change, water bodies, and permanent snow areas) and environmental constraints informationas marginality indicators: (i) physical soil properties, in terms of slope gradient, erosion, soil depth, soil texture, percentageof coarse soil texture fragments, etc.; (ii) climatic factors e.g. aridity index; (iii) chemical soil properties, including soil pH,cation exchange capacity, contaminants, and toxicity, among others. This provides a common vision of marginality thatintegrates a multidisciplinary approach. To determine the ML, we first analyzed the excluding indicators used to delimit theareas with defined land use. Then, thresholds were determined for each marginality indicator through which the landproductivity progressively decreases. Finally, the marginality indicator layers were combined in Google Earth Engine. Theresult was categorized into 3 levels of productivity of ML: high productivity, low productivity, and potentially unsuitable land.The results obtained indicate that the percentage of marginal land per country is 11.64% in Germany, 19.96% in Spain,18.76% in Greece, and 7.18% in Poland. The overall accuracies obtained per country were 60.61% for Germany, 88.87%for Spain, 71.52% for Greece, and 90.97% for Poland.
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Soldatova, Irina, Soslan KOZYREV, and Eduard SOLDATOV. "Optimization of productive potential of mountain forage land in the Central Caucasus." In Multifunctional adaptive fodder production. ru: Federal Williams Research Center of Forage Production and Agroecology, 2022. http://dx.doi.org/10.33814/mak-2022-28-76-40-46.

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The unregulated use of mountain fodder lands has led to the degradation of soil and vegetation. The use of the biologically active drug "Extrasol", zeolite-containing agro-ore and humus of sheep manure on the natural forage land of the mountain zone contributed to a change in the composition of soil nutrients by reducing the acidity of the soil solution. The germination of fallow seeds of cereals increased from 30.4 to 55.3%, legumes from 5.2 to 17.1-26.8%, which had an impact on the reduction of weed forbs from 64 to 27.6-19.5 %. The change in the structure of the herbage contributed to an increase in yield from 9.9 to 69.4 c/ha of dry weight, the concentration of feed units from 0.9 to 6.1 thousand feed units and MA to 73.9 GJ/ha, allowing to increase the load livestock on pasture and its productivity, while maintaining the ecological stability of mountain agricultural landscapes.
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Gamage, P. R., and N. T. S. Wijesekera. "Attempting to improve seasonal performance of Land and water productivity through systematic analysis: Case study of Dahanaka Minor Irrigation Tank in Anuradhapura District of Sri Lanka." In UMCSAWM Water Conference on Demonstrating the strength of water Engineering and Management capability through case study applications. UNESCO Madanjeet Singh Centre for South Asia Water Management, 2017. http://dx.doi.org/10.31705/umcsawm.17.

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Reports on the topic "Land capability and soil productivity"

1

Carvalho, Helena. Land Inequality, Agricultural Productivity, and the Portuguese Agrarian Reform (1974-1976). APHES Working Paper in Economic and Social History, March 2022. http://dx.doi.org/10.55462/wpaphes_a_503.

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Land reforms sacrifice property rights in the name of a fairer distribution. The trade-off they imply makes their study of interest to Economic Historians: do the benefits of reduced land inequality justify the violation of property rights? The discussion about land reforms factors in both the social and efficiency consequences of land inequality. The debate preceding the Portuguese Agrarian Reform echoes these concerns and culminated in an anti-latifundia sentiment crystallized in the legislation used to justify the land occupations of 1974 to 1976. The aim of this paper is to critically assess the efficiency arguments used to justify the occupations. Was land productivity lower in latifúndio counties? A unique dataset drawn from primary sources was specially assembled to answer this question. Through standard OLS regression, this study finds that the number of agriculture journeyman per employer landowner has a statistically significant effect on agricultural productivity after controlling for geographical and soil characteristics. It also finds that introducing literacy as a control causes the effect of land inequality to disappear leading to the conclusion that policies aimed at improving human capital would have been just as effective as a land reform. Further, this study also identifies the crop mix selected as the proximate channel of transmission. Farmers in the region with the highest levels of land inequality favoured less valuable crops, like wheat. An arid climate combined with a lack of irrigation infrastructure and wheat protectionism justify this preference.
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Wyndham, Amber, Emile Elias, Joel R. Brown, Michael A. Wilson, and Albert Rango. Drought Vulnerability Assessment to Inform Grazing Practices on Rangelands of Southeastern Colorado’s Major Land Resource Area 69. United States. Department of Agriculture. Southwest Climate Hub, January 2018. http://dx.doi.org/10.32747/2018.6876399.ch.

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Increased climate variability, including more frequent and intense drought, is projected for the southwestern region of the United States. Increased temperatures and reduced precipitation lower soil water availability resulting in decreased plant productivity and altering species composition which may affect forage quality and quantity. Reduced forage quality and increased heat stress attributable to warmer temperatures could lead to decreased livestock performance in this system, which is extensively used for livestock grazing. Mitigating the effects of increasing drought is critical to social and ecological stability in the region. Reduced stocking rates, change in livestock breeds and/or grazing practices are general recommendations that could be implemented to cope with increased climatic stress. Ecological Sites (ESs) and their associated state and transition models (STMs) are tools to help land managers implement and evaluate responses to disturbances. The projected change in climate will vary depending on geographic location. Vulnerability assessments and adaptation strategies are needed at the local level to inform local management decisions and help ameliorate the effects of climate change on rangelands. The USDA Southwest Climate Hub and Natural Resources Conservation Service (NRCS) worked together to produce this drought vulnerability assessment at the Major Land Resource Area (MLRA) level based on ESs/STMs that will help landowners and government agencies identify and develop adaptation options for drought on rangelands. The assessment illustrates how site-specific information can be used to help minimize the effects of drought on rangelands and support informed decision-making for selecting management adaptations within MLRA 69.
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Wyndham, Amber, Emile Elias, Joel Brown, Michael Wilson, and Albert Rango. Drought Vulnerability Assessment to Inform Grazing Practices on Rangelands of Southeastern Colorado’s Major Land Resource Area 69. USDA Southwest Climate Hub, July 2018. http://dx.doi.org/10.32747/2018.6947062.ch.

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Increased climate variability, including more frequent and intense drought, is projected for the southwestern region of the United States. Increased temperatures and reduced precipitation lower soil water availability, resulting in decreased plant productivity and altering species composition, which may affect forage quality and quantity. Reduced forage quality and increased heat stress attributable to warmer temperatures could lead to decreased livestock performance in this system, which is extensively used for livestock grazing. Mitigating the effects of increasing drought is critical to social and ecological stability in the region. Reduced stocking rates, change in livestock breeds and/or grazing practices are general recommendations that could be implemented to cope with increased climatic stress. Ecological Sites and their associated state–and-transition models (STMs) are tools to help land managers implement and evaluate responses to disturbances. The projected change in climate will vary depending upon geographic location. Vulnerability assessments and adaptation strategies are needed at the local level to inform local management decisions and help ameliorate the effects of climate change on rangelands. The United States Department of Agriculture (USDA) Southwest Climate Hub and Natural Resources Conservation Service (NRCS) worked together to produce this drought vulnerability assessment at the Major Land Resource Area (MLRA) level, based on ecological sites and state-and-transition models that will help landowners and government agencies to identify and develop adaptation options for drought on rangelands. The assessment illustrates how site-specific information can be used to help minimize the effects of drought on rangelands and support informed decision-making for the selection of management adaptations within MLRA 69.
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Wyndham, Amber, Emile Elias, Joel Brown, Michael Wilson, and Albert Rango. Drought Vulnerability Assessment to Inform Grazing Practices on Rangelands of Southeastern Colorado’s Major Land Resource Area 69. USDA Southwest Climate Hub, March 2018. http://dx.doi.org/10.32747/2018.6965584.ch.

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Increased climate variability, including more frequent and intense drought, is projected for the southwestern region of the United States. Increased temperatures and reduced precipitation lower soil water availability resulting in decreased plant productivity and altering species composition which may affect forage quality and quantity. Reduced forage quality and increased heat stress attributable to warmer temperatures could lead to decreased livestock performance in this system, which is extensively used for livestock grazing. Mitigating the effects of increasing drought is critical to social and ecological stability in the region. Reduced stocking rates, change in livestock breeds and/or grazing practices are general recommendations that could be implemented to cope with increased climatic stress. Ecological Sites (ESs) and their associated state and transition models (STMs) are tools to help land managers implement and evaluate responses to disturbances. The projected change in climate will vary depending on geographic location. Vulnerability assessments and adaptation strategies are needed at the local level to inform local management decisions and help ameliorate the effects of climate change on rangelands. The USDA Southwest Climate Hub and Natural Resources Conservation Service (NRCS) worked together to produce this drought vulnerability assessment at the Major Land Resource Area (MLRA) level based on ESs/STMs that will help landowners and government agencies identify and develop adaptation options for drought on rangelands. The assessment illustrates how site-specific information can be used to help minimize the effects of drought on rangelands and support informed decision-making for selecting management adaptations within MLRA 69.
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Wyndham, Amber, Emile Elias, Joel R. Brown, Michael A. Wilson, and Albert Rango. Drought Vulnerability Assessment to Inform Grazing Practices on Rangelands in Southeast Arizona and Southwest New Mexico’s Major Land Resource Area 41. United States. Department of Agriculture. Southwest Climate Hub, August 2018. http://dx.doi.org/10.32747/2018.6818230.ch.

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Increased climate variability, including more frequent and intense drought, is projected for the southwestern region of the United States. Increased temperatures and reduced precipitation lower soil water availability, resulting in decreased plant productivity and altered species composition, which may affect forage quality and quantity. Reduced forage quality and increased heat stress attributable to warmer temperatures could lead to decreased livestock performance in this system, which is extensively used for livestock grazing. Mitigating the effects of increasing drought is critical to social and ecological stability in the region. Reduced stocking rates and/or a change in livestock breeds and/or grazing practices are general recommendations that could be implemented to cope with increased climatic stress. Ecological Sites (ESs) and their associated state-and-transition models (STMs) are tools to help land managers implement and evaluate responses to disturbances. The projected change in climate will vary depending upon geographic location. Vulnerability assessments and adaptation strategies are necessary at the local level to inform local management decisions and help to ameliorate the effects of climate change on rangelands. The USDA Southwest Climate Hub and the Natural Resources Conservation Service (NRCS) worked together to produce this drought vulnerability assessment at the Major Land Resource Area (MLRA) level: it is based on ESs/STMs that will help landowners and government agencies to identify and develop adaptation options for drought on rangelands. The assessment illustrates how site-specific information can be used to help minimize the effects of drought on rangelands and to support informed decision-making for selecting management adaptations within MLRA 41.
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6

Wyndham, Amber, Emile Elias, Joel Brown, Michael Wilson, and Albert Rango Rango. Drought Vulnerability Assessment to Inform Grazing Practices on Rangelands in Southeast Arizona and Southwest New Mexico’s Major Land Resource Area 41. USDA Southwest Climate Hub, August 2018. http://dx.doi.org/10.32747/2018.6947060.ch.

Full text
Abstract:
Increased climate variability, including more frequent and intense drought, is projected for the southwestern region of the United States. Increased temperatures and reduced precipitation lower soil water availability, resulting in decreased plant productivity and altered species composition, which may affect forage quality and quantity. Reduced forage quality and increased heat stress attributable to warmer temperatures could lead to decreased livestock performance in this system, which is extensively used for livestock grazing. Mitigating the effects of increasing drought is critical to social and ecological stability in the region. Reduced stocking rates and/or a change in livestock breeds and/or grazing practices are general recommendations that could be implemented to cope with increased climatic stress. Ecological Sites (ESs) and their associated state-and-transition models (STMs) are tools to help land managers implement and evaluate responses to disturbances. The projected change in climate will vary depending upon geographic location. Vulnerability assessments and adaptation strategies are necessary at the local level to inform local management decisions and help to ameliorate the effects of climate change on rangelands. The USDA Southwest Climate Hub and the Natural Resources Conservation Service (NRCS) worked together to produce this drought vulnerability assessment at the Major Land Resource Area (MLRA) level: it is based on ESs/STMs that will help landowners and government agencies to identify and develop adaptation options for drought on rangelands. The assessment illustrates how site-specific information can be used to help minimize the effects of drought on rangelands and to support informed decision-making for selecting management adaptations within MLRA 41.
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7

Phuong, Vu Tan, Nguyen Van Truong, Do Trong Hoan, Hoang Nguyen Viet Hoa, and Nguyen Duy Khanh. Understanding tree-cover transitions, drivers and stakeholders’ perspectives for effective landscape governance: a case study of Chieng Yen Commune, Son La Province, Viet Nam. World Agroforestry, 2021. http://dx.doi.org/10.5716/wp21023.pdf.

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Integrated landscape management for sustainable livelihoods and positive environmental outcomes has been desired by many developing countries, especially for mountainous areas where agricultural activities, if not well managed, will likely degrade vulnerable landscapes. This research was an attempt to characterize the landscape in Chieng Yen Commune, Son La Province in Northwest Viet Nam to generate knowledge and understanding of local conditions and to propose a workable governance mechanism to sustainably manage the landscape. ICRAF, together with national partners — Vietnamese Academy of Forest Sciences, Soil and Fertilizer Research Institute — and local partners — Son La Department of Agriculture and Rural Development, Son La Department of Natural Resources and Environment, Chieng Yen Commune People’s Committee — conducted rapid assessments in the landscape, including land-use mapping, land-use characterization, a household survey and participatory landscape assessment using an ecosystem services framework. We found that the landscape and peoples’ livelihoods are at risk from the continuous degradation of forest and agricultural land, and declining productivity, ecosystem conditions and services. Half of households live below the poverty line with insufficient agricultural production for subsistence. Unsustainable agricultural practices and other livelihood activities are causing more damage to the forest. Meanwhile, existing forest and landscape governance mechanisms are generally not inclusive of local community engagement. Initial recommendations are provided, including further assessment to address current knowledge gaps.
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Mosquna, Assaf, and Sean Cutler. Systematic analyses of the roles of Solanum Lycopersicum ABA receptors in environmental stress and development. United States Department of Agriculture, January 2016. http://dx.doi.org/10.32747/2016.7604266.bard.

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Abstract:
Drought and other abiotic stresses have major negative effects on agricultural productivity. The plant hormone abscisic acid (ABA) regulates many responses to environmental stresses and can be used to improve crop performance under stress. ABA levels rise in response to diverse abiotic stresses to coordinate physiological and metabolic responses that help plants survive stressful environments. In all land plants, ABA receptors are responsible for initiating a signaling cascade that leads to stomata closure, growth arrest and large-scale changes in transcript levels required for stress tolerance. We wanted to test the meaning of root derived ABA signaling in drying soil on water balance. To this end we generated transgenic tomato lines in which ABA signaling is initiated by a synthetic agonist- mandipropamid. Initial study using a Series of grafting experiments indicate that that root ABA signaling has no effect on the immediate regulation of stomata aperture. Once concluded, these experiments will enable us to systematically dissect the physiological role of root-shoot interaction in maintaining the water balance in plants and provide new tools for targeted improvement of abiotic stress tolerance in crop plants.
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