Relevant bibliographies by topics / Arid Zones

Academic literature on the topic 'Arid Zones'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Arid Zones.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Arid Zones"

1

Zhou, Yanqing, Yaoming Li, Wei Li, Feng Li, and Qinchuan Xin. "Ecological Responses to Climate Change and Human Activities in the Arid and Semi-Arid Regions of Xinjiang in China." Remote Sensing 14, no. 16 (August 12, 2022): 3911. http://dx.doi.org/10.3390/rs14163911.

Full text
Abstract:
Understanding the impacts and extent of both climate change and human activities on ecosystems is crucial to sustainable development. With low anti-interference ability, arid and semi-arid ecosystems are particularly sensitive to disturbances from both climate change and human activities. We investigated how and to what extent climate variation and human activities influenced major indicators that are related to ecosystem functions and conditions in the past decades in Xinjiang, a typical arid and semi-arid region in China. We analyzed the changing trends of evapotranspiration (ET), gross primary productivity (GPP) and leaf area index (LAI) derived from the Moderate-Resolution Imaging Spectroradiometer (MODIS) satellite product and the Breathing Earth System Simulator (BESS) model in Xinjiang for different climate zones. We separated and quantified the contributions of climate forcing and human activities on the trends of the studied ecosystem indicators using the residual analysis method for different climate zones in Xinjiang. The results show that GPP and LAI increased and ET decreased from 2001 to 2015 in Xinjiang. Factors that dominate the changes in ecosystem indicators vary considerably across different climate zones. Precipitation plays a positive role in impacting vegetation indicators in arid and hyper-arid zones and temperature has a negative correlation with both GPP and LAI in hyper-arid zones in Xinjiang. Results based on residual analysis indicate that human activities could account for over 72% of variation in the changes in each ecosystem indicator. Human activities have large impacts on each vegetation indicator change in hyper-arid and arid zones and their relative contribution has a mean value of 79%. This study quantifies the roles of climate forcing and human activities in the changes in ecosystem indicators across different climate zones, suggesting that human activities largely influence ecosystem processes in the arid and semi-arid regions of Xinjiang in China.
APA, Harvard, Vancouver, ISO, and other styles
2

Alonso, Jaime Latorre. "Reforestation of arid and semi-arid zones in Chile." Agriculture, Ecosystems & Environment 33, no. 2 (December 1990): 111–27. http://dx.doi.org/10.1016/0167-8809(90)90237-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Jawad, Thaer K., Osama T. Al-Taai, and Yaseen K. Al-timimi. "Evaluation of Drought Characteristics in Iraq using SC-PDSI." Science Journal of University of Zakho 6, no. 3 (September 30, 2018): 94–99. http://dx.doi.org/10.25271/sjuoz.2018.6.3.511.

Full text
Abstract:
Evaluation of drought characteristics in Iraq by analysis annual growing season of Self-Calibrating Palmer Drought Severity Index (SC-PDSI) for three climatic zones using run theory method. The efficiency of SC-PDSI for drought monitoring was examined from compared with Rainfall Departure from the mean (RD) for three zones (Arid and Semi-Arid, Steppes and Desert) for the period 1981-2015, were derived from Climatic Research Unit (CRU). The spatial interpolation techniques in ArcGIS package has been used, to cover the whole extent of country and extracting the zones. Statistical methods were applied to compute the probability of drought events at every zone. The results showed the years 1999, 2000, 2008 and 2009 experienced droughts in all zones except the desert zone where was experienced severe drought in 2012, while the years 1982 and 1988 experienced received precipitation above-average in all zones. The values of standard deviation of precipitation were compared with precipitation anomalies for each zone, the drier seasons are (2007-2008) and (1998-1999) in all Zones. The wetter seasons are (1987-1988) in Arid and Semi-Arid and Steppes zone, (1994-1995) and (1997-1998) are wetter seasons in Desert zone. Using run theory, the steppes zone have experienced more severe droughts than other zones evaluated in this study and the most susceptible areas to dry spell are steppes and Arid and Semi-Arid Zones during study period. While the desert zone experienced less droughts.
APA, Harvard, Vancouver, ISO, and other styles
4

Jawad, Thaer K., Osama T. Al-Taai, and Yaseen K. Al-Timimi. "Evaluation of Drought Characteristics in Iraq using SC-PDSI." Science Journal of University of Zakho 6, no. 4 (December 30, 2018): 177–82. http://dx.doi.org/10.25271/sjuoz.2018.6.4.547.

Full text
Abstract:
Evaluation of drought characteristics in Iraq by analysis annual growing season of Self-Calibrating Palmer Drought Severity Index (SC-PDSI) for three climatic zones using run theory method. The efficiency of SC-PDSI for drought monitoring was examined from compared with Rainfall Departure from the mean (RD) for three zones (Arid and Semi-Arid, Steppes and Desert) for the period 1981-2015, were derived from Climatic Research Unit (CRU). The spatial interpolation techniques in ArcGIS package has been used, to cover the whole extent of country and extracting the zones. Statistical methods were applied to compute the probability of drought events at every zone. The results showed the years 1999, 2000, 2008 and 2009 experienced droughts in all zones except the desert zone where was experienced severe drought in 2012, while the years 1982 and 1988 experienced received precipitation above-average in all zones. The values of standard deviation of precipitation were compared with precipitation anomalies for each zone, the drier seasons are (2007-2008) and (1998-1999) in all Zones. The wetter seasons are (1987-1988) in Arid and Semi-Arid and Steppes zone, (1994-1995) and (1997-1998) are wetter seasons in Desert zone. Using run theory, the steppes zone have experienced more severe droughts than other zones evaluated in this study and the most susceptible areas to dry spell are steppes and Arid and Semi-Arid Zones during study period. While the desert zone experienced less droughts.
APA, Harvard, Vancouver, ISO, and other styles
5

Tyler, S. W., and G. R. Walker. "Root Zone Effects on Tracer Migration in Arid Zones." Soil Science Society of America Journal 58, no. 1 (January 1994): 25–31. http://dx.doi.org/10.2136/sssaj1994.03615995005800010004x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

H. HAFTOM, A. HAFTU, K. GOITOM, and H. MESERET. "Agroclimatic zonation of Tigray region of Ethiopia based on aridity index and traditional agro-climatic zones." Journal of Agrometeorology 21, no. 2 (November 10, 2021): 176–81. http://dx.doi.org/10.54386/jam.v21i2.229.

Full text
Abstract:
The aim of this study was to identify the agroclimatic zones of Tigray region based on aridity index and traditional agroclimatic zone using 37-year (1981-2017) spatial climate data downloaded for Tigray region from Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) for rainfall and from Enhancing National Climate Services (ENACTS) data for temperature. Arc map 10.3 was used for mapping of all climatic variables and zonation of agro-climatic zones. Potential evapotranspiration (PET) was computed based on Hargreaves formula and the aridity index was computed. Besides, the digital elevation model was downloaded from ASTER data. The aridity map of Tigray divided into three index zones (0.03-0.2, 0.2–0.5 and 0.5–0.65) and five traditional agro-climate zones (<1500,1500-2000,2000- 2500, 2500-3000, >3000 m.a.s.l.) were overlaid, which divided entire region of Tigray into fifteen agroclimatic zones. Hot semi-arid, warm semi-arid, tepid semi-arid and hot arid were the dominant zones in the region.
APA, Harvard, Vancouver, ISO, and other styles
7

Li, Xiaoyang, Lei Zou, Jun Xia, Feiyu Wang, and Hongwei Li. "Identifying the Responses of Vegetation Gross Primary Productivity and Water Use Efficiency to Climate Change under Different Aridity Gradients across China." Remote Sensing 15, no. 6 (March 13, 2023): 1563. http://dx.doi.org/10.3390/rs15061563.

Full text
Abstract:
Despite the fact that gross primary productivity (GPP) and water use efficiency (WUE) have been widely used as indicators to evaluate the water-carbon cycle, uncertainties exist in the patterns of GPP and WUE responses to climate variability along different aridity gradients. In this study, the aridity index was used to divide China into four arid-humid zones. The spatiotemporal variability of multiple vegetation types GPP and WUE in response to climate change under different arid-humid zones were investigated based on remote sensing data. The results indicated that the increasing trend of WUE in the four arid-humid zones of China was less pronounced than GPP from 2001 to 2021. The GPP value decreased gradually from the humid to the arid zone, and the WUE value in the arid zone was slightly higher than in the semi-arid zone. The GPP of all vegetation types in China showed a tendency to increase, while shrubland and wetland WUE tended to decrease. The major vegetation types (e.g., forest, cropland and grassland) in each aridity gradient contributed to the changes in local GPP and WUE. However, in individual arid-humid zones, wetland and shrubland also exhibited high GPP and WUE values that were not inferior to forest and cropland. Temperature and precipitation were the main climatic factors responsible for the increase in vegetation GPP in different aridity gradients, with a higher positive correlation for temperature than precipitation. WUE showed a distinct positive and negative correlation with the thermal factors (temperature and net radiation) and the moisture factors (precipitation and relative humidity); this pattern was more pronounced in the humid and semi-humid zones. Net radiation and precipitation may be the main climatic factors causing a slight upward trend in WUE across the arid-humid zones, while the decrease in shrubland and wetland WUE may be related to relative humidity and precipitation.
APA, Harvard, Vancouver, ISO, and other styles
8

Scarnecchia, David L., G. Gintzburger, K. N. Toderich, B. K. Mardonov, and M. M. Mahmudov. "Rangelands of the Arid and Semi-Arid Zones of Uzbekistan." Journal of Range Management 57, no. 2 (March 2004): 226. http://dx.doi.org/10.2307/4003924.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Scarnecchia, David L. "Rangelands of the Arid and Semi-arid Zones of Uzbekistan." Rangeland Ecology & Management 57, no. 2 (March 2004): 227–28. http://dx.doi.org/10.2111/1551-5028(2004)057[0227:rotaas]2.0.co;2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kalankesh, Laleh R., Susana Rodriguez-Couto, Ali Alami, Shahla Khosravan, Mehdi Meshki, Elshen Ahmadov, Ali Mohammadpour, and Narges Bahri. "Socio-Environmental Determinants and Human Health Exposures in Arid and Semi-Arid Zones of Iran—Narrative Review." Environmental Health Insights 16 (January 2022): 117863022210897. http://dx.doi.org/10.1177/11786302221089738.

Full text
Abstract:
Lifestyle is different in arid and semi-arid zones. However, where people are born and live have a lasting influence on their social and environmental exposure. This review focuses on the, various dimensions of environmental health imbalance inequality especially in significant environmental sources such as (ie, air, water, soil) among provinces that creates a big health gap in the center, East and the Southeast of Iran. Thus, the population of the arid and semi-arid zones of Iran is facing respiratory, cardiovascular, cancer and infection diseases linked to environmental problems such as chemical and microbial pollution due to air pollution and unsafe water sources, respectively. The prevalence of certain types of cancer such as skin, stomach, bladder, prostate and colorectal cancer together with some respiratory and cardiovascular diseases in arid and semiarid zones such as Kerman, Yazd, etc., has been reported in comparison with other provinces frequently. These impacts have effects on multiple levels of health security in those zones. Based on these concerns, we propose key questions that should guide research in the context of the socio environmental science to support science-based management actions in Iran and other similar semi-arid areas worldwide.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Arid Zones"

1

McCool, Jon-Paul. "Paleoenvironmental Approaches in Arid Geoarchaeology: Assessment of Former Habitation Zones and Landscapes." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1522057729882415.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hempson, Gareth Peter. "Herbivore dynamics in an arid environment." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5665.

Full text
Abstract:
This study investigated the effects of a seasonally variable forage resource on herbivore population dynamics. This involved estimating the relative importance of environmental conditions, and the accessible and used forage resources, at different stages of the seasonal cycle to herbivores in different life-stages and at different points in the reproductive cycle. This study was carried out in the Richtersveld region in South Africa, using goats kept by semi-nomadic Nama pastoralists. In the main study site, the Richtersveld National Park (RNP), herd movements follow a general seasonal migratory pattern: herds are based in the riparian zone of the Orange River during the dry season, and on plains away from the river in the wet season. Over 800 uniquely marked female goats in three life-stages (adults, yearlings and kids) were monitored over a three year period (2007 to 2009). These goats were weighed at 2 - 3 month intervals to provide an estimate of body condition. Browse availability in the riparian zone was estimated using measurements at an individual branch-level and a whole tree-level. FPAR satellite imagery was used to estimate forage abundance outside the riparian zone. Goat density was mapped for each week of the study using census data and the herd positions. Goat body condition, survival rates and fecundity rates for each life-stage were modelled as a response to forage availability, density and climatic conditions. The riparian zone in the RNP was found to function as the key resource of the RNP goat population. Forage depletion by goat browsing resulted in a negative feedback on goat body condition. This decline in body condition was directly related to lower adult survival over the dry season. Fecundity was also most influenced by dry season conditions through the negative effect of poor body condition on pregnancy rates and birth rates. Asymmetric competition between life-stages, resulting from the riparian browse profile being depleted from the bottom-up, was predicted to have a strong effect on goat demography by contributing to differences in body condition and survival rates between life-stages. Wet season conditions appeared to have little effect on goat population dynamics, either through increased neonate survival or through a mass carry-over effect influencing dry season survival. Goat body condition and vital rates were compared between the RNP and the neighbouring Kuboes rangeland, which does not have access to the Orange River, to assess the impact of differences in their dry season forage resource. The long-term size and variability of the livestock population in the RNP was also compared with livestock dynamics in Paulshoek, a rangeland 250 km south east of the RNP. The a priori predictions of relative population dynamics in each region, based on perceived differences in the nature of the key resource in each region, were largely supported.
APA, Harvard, Vancouver, ISO, and other styles
3

Aralova, Dildora, Kristina Toderich, Ben Jarihani, Dilshod Gafurov, Liliya Gismatulina, Babatunde A. Osunmadewa, and Abualgasim Majdaldin Rahamtallah. "Environmental resilience of rangeland ecosystems: Assessment drought indices and vegetation trends on arid and semi-arid zones of Central Asia." SPIE, 2016. https://tud.qucosa.de/id/qucosa%3A35118.

Full text
Abstract:
The Central Asian (CA) rangelands is a part of the arid and semi-arid ecological zones and spatial extent of drylands in CA (Tajikistan, Kazakhstan, Uzbekistan, Kyrgyzstan, and Turkmenistan) is vast. Projections averaged across a suite of climate models, as measured between 1950-2012 by Standardised Precipitation-Evapotranspiration Index (SPEI) estimated a progressively increasing drought risks across rangelands (Turkmenistan, Tajikistan and Uzbekistan) especially during late summer and autumn periods, another index: Potential Evapotranspiration (PET) indicated drought anomalies for Turkmenistan and partly in Uzbekistan (between 1950-2000). On this study, we have combined a several datasets of drought indices ( SPIE, PET, temperature_ToC and precipitation_P) for better estimation of resilience/non-resilience of the ecosystems after warming the temperature in the following five countries, meanwhile, warming of climate causing of increasing rating of degradations and extension of desertification in the lowland and foothill zones of the landscape and consequently surrounding experienced of a raising balance of evapotranspiration (ET0). The study concluded, increasing drought anomalies which is closely related with raising (ET0) in the lowland and foothill zones of CA indicated on decreasing of NDVI indices with occurred sandy and loamy soils it will resulting a loss of vegetation diversity (endangered species) and raising of wind speeds in lowlands of CA, but on regional level especially towards agricultural intensification (without rotation) it indicated no changes of greenness index. It was investigated to better interpret how vegetation feedback modifies the sensitivity of drought indices associated with raising tendency of air temperature and changes of cold and hot year seasons length in the territory of CA.
APA, Harvard, Vancouver, ISO, and other styles
4

Duncan, Corrine. "Seeds, soils and moisture : ecophysiology to inform mine site restoration in arid zones." Thesis, Federation University Australia, 2019. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/180639.

Full text
Abstract:
Mining in arid regions of Australia is followed by restoration and rehabilitation efforts. However, attempts to reintroduce many woody plant species have been unsuccessful. Water is the key limiting resource to plant growth and seed germination in arid zones. In this thesis, I investigated ecophysiological processes that may help improve recruitment across novel arid landscapes. I tested seed traits and dormancy cues of eight keystone plants and found that six of them had non-dormant, rapidly germinating seeds; a trait we propose is an adaptation to the region’s unpredictable rainfall. To identify the germination niche of species, I incubated seeds under different temperatures and water potentials, and found drought avoidance to be an important survival strategy for arid species. I collected soil samples to compare biophysicochemical properties of reconstructed soils to remnant ecosystems, and found that the distribution of clay content in the reconstructed soils did not mirror the remnant soils, compromising their ability to sustain perennial vegetation. I also monitored soil moisture and found that soil reconstruction reduces rainfall infiltration and retention, and subsequently increases evaporation. The synthesis of these results demonstrate some of the limitations to successful restoration in these systems, such as (1) unknown dormancy cues and poor seed longevity, (2) infrequent and episodic plant recruitment due to water limitation, and (3) reduced hydrological function of reconstructed soils. The failure to reinstate hydrological function is the major constraint to ecological restoration in this arid zone. Nonetheless, results from this study suggest that restoration is possible through more strategic use of seed, careful selection of drought tolerant species, and increasing soil moisture. Further failures to reinstate ecosystem function and community dynamics in arid zones with reconstructed soils can be prevented by understanding the edaphic constraints to plant establishment, and ameliorating conditions to mimic ecohydrological processes in remnant ecosystems.
Doctor of Philosophy
APA, Harvard, Vancouver, ISO, and other styles
5

Rehman, Abdul [Verfasser]. "Epidemiology of Ticks and Tick-borne Pathogens in the Semi-arid and the Arid Agro-ecological Zones in Pakistan / Abdul Rehman." Berlin : Freie Universität Berlin, 2017. http://d-nb.info/1123998809/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Mohammed, R. "Assessment of the effect of climate change in anticipated water resources availability in arid climate zones." Thesis, University of Salford, 2017. http://usir.salford.ac.uk/44643/.

Full text
Abstract:
Climate change impact and drought phenomena linked with anthropogenic pressure have become a growing concern for water resource managers and policy makers, particularly in arid and semi-arid regions. This research proposes generic methodologies to evaluate the prospective impact of such changes at a basin-scale. The Lower Zab River Basin, northern Iraq, has been selected as a representative case study. These methodologies have been achieved through the following: (1) Highlight the impact of potential evapotranspiration (PET) methods, elevation, and climatic conditions on the reconnaissance drought index (RDI) results, applying three of the most widespread PET estimates, which are Thornthwaite, Hargreaves, and Blaney-Criddle in addition to the Food and Agriculture Organization Penman-Monteith reference technique, using data from 24 stations cover different elevations and climatic conditions for the period from 1979 to 2014. The initial form of RDI is directly influenced by the selected PET method at different elevations for all regions. (2) Combine the results of the flow duration curve and the digital filtering algorithms to overcome the limitations of the traditional baseflow separation methods, and then determine the baseflow annual variations. The water yielded from the basin storage system during the dry seasons resulted in dissimilarities in the observed baseflow index between the pre-damming and post-damming periods of the streamflow. (3) Quantify the hydrological alterations of various flow characteristics utilise the Indicators of Hydrologic Alteration method, in addition to multi- regression, hydrologic sensitivity, and hydrologic model simulations. Climate change was the main factor reducing streamflow. (4) Compare the results of seven ensembles General Circulation Models (GCM) with the results of delta perturbation (DP) scenarios. Both scenarios predicted almost identical decreases in the mean monthly flows to the reservoir. The DP scenarios allow the sensitivity of the impact models to climate change to be more evidently determined compared to GCM scenarios so that they could be complemented GCM scenarios.
APA, Harvard, Vancouver, ISO, and other styles
7

Heshmatti, Gholam Ali. "Plant and soil indicators for detecting zones around water points in arid perennial chenopod shrublands of South Australia /." Title page, contents and summary only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phh584.pdf.

Full text
Abstract:
Thesis (Ph. D.)--University of Adelaide, Dept. of Botany, 1997.
Errata page is behind title page (p. i). Copies of author's previously published articles inserted. Includes bibliographical references (leaves 121-156).
APA, Harvard, Vancouver, ISO, and other styles
8

Lima, Géssica Silva [UNESP]. "Caracterização físico-hídrica do solo do perímetro irrigado pontal sul por funções de pedotransferência." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/144725.

Full text
Abstract:
Submitted by GÉSSICA SILVA LIMA null (gessicaslima@hotmail.com) on 2016-11-24T20:13:59Z No. of bitstreams: 1 Tese_Géssica Silva Lima.pdf: 1381711 bytes, checksum: 9da4409253a7ea1d9b0f0f18bfdcb292 (MD5)
Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-11-29T13:12:51Z (GMT) No. of bitstreams: 1 lima_gs_dr_bot.pdf: 1381711 bytes, checksum: 9da4409253a7ea1d9b0f0f18bfdcb292 (MD5)
Made available in DSpace on 2016-11-29T13:12:51Z (GMT). No. of bitstreams: 1 lima_gs_dr_bot.pdf: 1381711 bytes, checksum: 9da4409253a7ea1d9b0f0f18bfdcb292 (MD5) Previous issue date: 2016-09-29
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
A busca por meios que auxiliem a eficiência no uso dos recursos hídricos e conservação do solo é indispensável para a sustentabilidade da atividade agrícola na região semiárida brasileira. Assim sendo, estudos capazes de indicar e orientar medidas que viabilizem a produção de alimentos com maior eficiência no uso da água e auxiliem as políticas de gestão e planejamento dos recursos hídricos, são de grande relevância. Entre as ferramentas existentes que podem auxiliar no planejamento e no manejo do uso da água na agricultura, podemos citar o uso da geoestatística, análise de agrupamento e funções de pedotransferência. Assim, o objetivo deste trabalho foi realizar a caracterização da área do Perímetro Irrigado Pontal Sul, em Petrolina – PE. As análises e resultados estão divididos em três capítulos. O primeiro apresenta as zonas homogêneas dos atributos físicos do solo e da velocidade de infiltração básica da água no solo, obtidas por meio de análise geoestatística e análise multivariada de agrupamento fuzzy c-means. No segundo capítulo, foram desenvolvidas funções de pedotransferência (FPT) para estimativa dos teores de água do solo na capacidade de campo (CC), ponto de murcha permanente (PMP) e água disponível no solo (AD), utilizando técnicas de regressão múltipla, a partir dos dados de granulometria e densidade do solo. No terceiro capítulo, realizou-se o estudo da variabilidade espacial da umidade do solo por meio da geoestatística, utilizando dados observados e estimados por FPT para as umidades na CC, PMP e AD. Concluiu-se que é possível um zoneamento com menor quantidade de variáveis para auxílio no planejamento do uso de água no perímetro irrigado. Houve diferença significativa para todos os atributos entre as 3 zonas homogêneas geradas. A maioria das FPT desenvolvidas não apresentaram boa acurácia para estimar o teor de água no solo. Entre elas, os melhores desempenhos foram observados para estimativa da CC e PMP no banco de dados geral na camada de 0,0-0,20 m. Na análise geoestatística os parâmetros dos semivariogramas ajustados para o banco de dados medidos e banco de dados estimados, quando comparados, apresentaram menor variação para a camada de solo de 0-0,2 m.
The search for tools to assist the efficient use and conservation of water and soilresources is essential for sustainability of agriculture in the Brazilian semiarid region. Thus, studies to indicate and guide procedures that enable the production of food with greater efficiency about water use and assist management policies and planning of water resources, have great importance. Among the existing tools that can assist in the planning and management of water use in agriculture, we have the geostatistics, multivariated analysis and pedotransfer functions. Hence, the objective of this study was to describe the area of the Pontal Sul Irrigation Scheme, in Petrolina, state of Pernambuco, Brazil. The analysis and results are divided into three chapters. The first chapter presents homogeneous zones obtained by using geostatistical analysis and multivariate analysis of fuzzy c-means clustering of soil physical attributes and soil water infiltration rate. In the second chapter pedotransfer functions were developed (PTF) to estimate soil water content at field capacity (FC), wilting point (WP) and available soil water (AW), using multiple regression techniques, based on data of soil particle size and soil density. The third chapter presents the study of the spatial variability of soil moisture by using geostatistics with observed and estimated by PTF data for soil water content at FC, WP and AW. It was concluded that it is possible a zoning with fewer variables to aid in the planning of water use in the irrigation scheme area. All attributes presented significant differences among the three homogeneous zones delimited. Most of the PTF developed did not show good accuracy to estimate the soil water content. Among them, the best performances were observed to estimate the FC and WP in the overall database in the soil layer of 0-0.2 m. In the geostatistical analysis the parameters of the semivariograms adjusted for the database measured and for the estimated database, when compared, presented smaller variation for the soil layer of 00,2 m.
CNPq: 142174/2013-0
APA, Harvard, Vancouver, ISO, and other styles
9

Rodríguez-Ferraro, Adriana. "Community ecology and phylogeography of bird assemblages in arid zones of northern Venezuela implications for the conservation of restricted-range birds /." Diss., St. Louis, Mo. : University of Missouri--St. Louis, 2008. http://etd.umsl.edu/r3141.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Porto, Everaldo Rocha 1948. "An economic evaluation of selected soil and water management technologies for rainfed agriculture : a study case in the arid zones of Brazil." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/191134.

Full text
Abstract:
Water harvesting techniques were used for increasing water availability for rainfed agriculture and for human consumption. The treatments involving soil and water management for cropping were as follows: (1) traditional; (2) microcatchment; (3) microcatchment plus fertilization with ordinary superphosphate (OSP); (4) microcatchment plus fertilization with manure; and (5) supplemental tank irrigation. A cistern with 50 m³ capacity was constructed to provide drinking water. The crop enterprises were cowpeas (Vigna unguiculata)/corn (Zea mays), and sorghum (Sorghum bicolor)/cactus (Opuntia spp.)/algaroba (Prosopis juliflora). Both were intercropped. The overall objectives of the study were: (1) to examine the impact of the application of water harvesting techniques together with crop management, with and 14 without fertilization on: farmer, (ii) profitability cropping, and (iii) labor benefit of a cistern based (i) financial position of the of each individual enterprise in utilization; (2) to estimate the on the costs of carrying water. All analysis were developed with the aid of Supercalc 4 spreadsheet software. Farm performance measures were: crop production; cash flows; income statements, net worth; cost and returns statements; and labor utilization. The impact of the household cistern was assessed through a benefit cost approach. From the results the following main conclusions were drawn: (1) microcatchment contributed marginally to increased yields; (2) microcatchment combined with OSP produced yield increases which were twice those of the traditional process; (3) tank irrigation with OSP quadrupled the traditional productivities; (4) the sorghum/cactus/algaroba enterprise presented a better cash position than cowpeas/ corn; (5) the farm can support the investments necessary for the application of water harvesting since it is financially liquid and solvent; (6) significant increase in net income was achieved when water harvesting was combined with fertilization for both enterprises; (7) the existing family labor potential on the farm is enough to supply the demand imposed by any one of the soil and water management treatment; (8) if opportunity cost of labor is involved in assessing the profitability of cropping, the most profitable soil and water management practice was tank irrigation; and (9) the construction of a cistern is an economical and feasible decision.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Arid Zones"

1

Eren, T. Agroforestry in arid and semi-arid zones.. Rome: Food and Agriculture Organization, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Boers, Th M. Rainwater harvesting in arid and semi-arid zones. Wageningen, The Netherlands: International Institute for Land Reclamation and Improvement, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

National, Symposium on Bio-Energy for Arid &. Semi-Arid Zones (1985 Udaipur India). Bio-energy for arid and semi-arid zones. Udaipur: Himanshu Publications, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

J, Bulandr, and Český geologický ústav Praha, eds. Prospecting methods in arid zones. Prague: Geological Survey, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Gintzburger, Gustave. Rangelands of the arid and semi-arid zones in Uzbekistan. Montpellier, France: CIRAD, 2003.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Yaʼir, Yitsḥaḳ. Energy aspects of design in arid zones. Jerusalem: Center for Desert Architecture and Urban Planning, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

W, Lloyd J., ed. Water resources of hard rock aquifers in arid and semi-arid zones. Paris: Unesco Pub., 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Douglas, Clyde L. Agronomic zones for the dryland Pacific Northwest. [Corvallis, Or.]: Oregon State University Extension Service, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Baris, Danièle, and Françoise Bardin. Toitures en zones tropicales arides. Paris: Groupe de recherche et déchanges technologiques, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Evgenʹevich, Sokolov Vladimir, Halffter Gonzalo, and Ortega Alfredo, eds. Vertebrate ecology in arid zones of Mexico and Asia. Xalapa, Veracruz, México: Instituto de Ecología, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Arid Zones"

1

Hills, E. S., and Lawrence Krader. "Social Life in the Arid Zones." In Arid Lands, 405–20. London: Routledge, 2024. http://dx.doi.org/10.4324/9781003426639-18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Bouwer, H. "Water Conservation in Arid Zones." In Water Saving Techniques for Plant Growth, 21–31. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2767-7_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Duran, Diana Uresti, Héctor Daniel Inurreta-Aguirre, Eduardo Alberto Lara Reimers, Dora Alicia García García, and Norma Paola Meléndez Rentería. "Agriculture in the Arid Zones." In Exploration and Valorization of Natural Resources from Arid Zones, 137–64. New York: Apple Academic Press, 2024. http://dx.doi.org/10.1201/9781032672236-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Gallina-Tessaro, Sonia, Luz A. Pérez-Solano, Luis García-Feria, Gerardo Sánchez-Rojas, Dante Hernández-Silva, and Juan Pablo Esparza-Carlos. "The Mule Deer of Arid Zones." In Ecology and Conservation of Tropical Ungulates in Latin America, 347–69. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-28868-6_14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Shankarnarayan, K. A., L. N. Harsh, and S. Kathju. "Agroforestry in the arid zones of India." In Agroforestry Systems in the Tropics, 99–120. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2565-6_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Rodríguez-González, Laihsa, Gloria A. Martínez Medina, J. Y. Méndez-Carmona, Salvador A. Saldaña-Mendoza, Josefina Rodriguez, Cristóbal Noé Aguilar, and Nathiely Ramírez-Guzmán. "Arid Zone Description and Its Biodiversity." In Exploration and Valorization of Natural Resources from Arid Zones, 1–24. New York: Apple Academic Press, 2024. http://dx.doi.org/10.1201/9781032672236-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Issar, A., and E. Adar. "Integrated Use of Marginal Water Resources in Arid and Semi-Arid Zones." In Water Saving Techniques for Plant Growth, 229–36. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2767-7_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Besbes, Mustapha, Jamel Chahed, Abdelkader Hamdane, and Ghislain De Marsily. "Changing Water Resources and Food Supply in Arid Zones: Tunisia." In Water and Sustainability in Arid Regions, 103–21. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2776-4_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Gopal, Brij. "Aquatic Biodiversity in Arid and Semi-Arid Zones of Asia and Water Management." In Conserving Biodiversity in Arid Regions, 199–215. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-0375-0_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Olivares, J., M. A. Herrera, and E. J. Bedmar. "Woody Legumes in Arid and Semi-arid Zones: the Rhizobium-Prosopis chilensis Symbiosis." In Nitrogen Fixation by Legumes in Mediterranean Agriculture, 65–72. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1387-5_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Arid Zones"

1

Azoui, B., and M. Chabane. "A comparative study of PV systems in semi arid and arid zones in Algeria." In 2015 50th International Universities Power Engineering Conference (UPEC). IEEE, 2015. http://dx.doi.org/10.1109/upec.2015.7339954.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Vega, Ramses, Hector E. Campbell, Juan de Dios Ocampo, and Diego R. Bonilla G. "Solar Water Heater Design for Houses in Arid Zones." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63239.

Full text
Abstract:
This paper shows the simulation and design of a flat plate solar collector system, used to feed hot water to a typical home located in the city of Mexicali, Baja California, México. The system consists of a solar collector, a storage tank, a water pump and accessories and special tools that allow its proper operation. Analyzing the consumption and end use of water in a typical House, a demand profile is established, which combined with the weather information of the region, constitutes the input parameters required for the simulation of the system, which is performed with the software package TRNSYS. Mexicali, due to its location (latitude 32 °, longitude 114 °) and semi-desert condition presents high temperatures in the summer and low in winter, so the design and operation of such systems require special features, not always considered in the conventional ratings. This paper presents methods for simulation and design oriented to optimize the dimensioning and operation of this type of solar heaters in regions with extreme temperature conditions.
APA, Harvard, Vancouver, ISO, and other styles
3

Huang, Rui, and Xianglei Liu. "Extraction of typical features in arid and semi-arid zones based on Sentinel-1A and Landsat-8." In 2023 4th International Conference on Geology, Mapping and Remote Sensing (ICGMRS 2023), edited by Yi Wang and Tao Chen. SPIE, 2024. http://dx.doi.org/10.1117/12.3019427.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Rice, Amy Katherine, Paul Black, Kelly Crowell, Aharon Fleury, Terry Jennings, Robert C. Lee, Daniel G. Levitt, et al. "RADIONUCLIDE TRANSPORT IN ARID AND SEMI-ARID ZONES: INTEGRATED SYSTEMS AND PROCESS MODELING TO SUPPORT ENVIRONMENTAL DECISION MAKING." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-340271.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Wang, Tao, Bao Yang, Achim Braeuning, and Dunsheng Xia. "Decadal-Scale Precipitation Variations in Arid and Semi-Arid Zones of Northern China During the Last 500 Years." In World Water and Environmental Resources Congress 2004. Reston, VA: American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40737(2004)5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Velasco, I. "Growing vulnerability of the arid zones to drought and its impacts." In RAVAGE OF THE PLANET 2006. Southampton, UK: WIT Press, 2006. http://dx.doi.org/10.2495/rav060451.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Chávarri, Eduardo, Edwin Pino, Julio Kuroiwa, and Walter Chuan. "EXACERBATION OF HYDROLOGIC EVENTS DUE TO ANTHROPOGENIC CAUSES IN ARID ZONES." In Proceedings of the 39th IAHR World Congress From Snow to Sea. Spain: International Association for Hydro-Environment Engineering and Research (IAHR), 2022. http://dx.doi.org/10.3850/iahr-39wc2521711920221674.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Shiroky, A. A., and V. V. Novochadov. "Models of Complex Risk Assessment for Soil Resources of Arid Zones." In 2022 15th International Conference Management of large-scale system development (MLSD). IEEE, 2022. http://dx.doi.org/10.1109/mlsd55143.2022.9934459.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Nakil, Seemantini. "Traditional and modern systems for addressing wter scarcity in arid zones of India." In Post-Oil City Planning for Urban Green Deals Virtual Congress. ISOCARP, 2020. http://dx.doi.org/10.47472/fesh7872.

Full text
Abstract:
Water is essential for all socio-economic development and for maintaining a healthy ecosystem in the world. At present, reduction of water scarcity is prime goal of many countries and governments. Water scarcity is one of the most important concerns of present-day geographers as water is the central subject of all kinds of developmental activities. Rajasthan is the largest state in India covering an area of 34.22 million hectares, i.e.10.5 percent of the country’s geographical area, but sharing only 1.15 percent of its water resources. The state is predominantly agrarian as the livelihood of 70 percent of its people depends on agriculturebased activities. Most of the state (60-75%) is arid or semiarid. Waterways are a vital and productive resource to our environment. Rajasthan in India is characterized by very low mean annual rainfall (100-400 mm), high inter-annual variability in rainfall and stream flows, and poorquality soils and groundwater. Rajasthan has a rich history of use of traditional systems of water harvesting in almost all the districts of the state. These practices have often saved the droughtaffected regions from problems of water famine. The serious problems of water shortages in many parts of the country are being largely attributed to the discontinued use of traditional water harvesting practices. This paper discusses reasons of scarcity of water in arid zones and also explore various traditional & modern water systems to resolve the issue of water scarcity in arid parts of India.
APA, Harvard, Vancouver, ISO, and other styles
10

Pedro Carrión Pérez, Patricio Planells Alandí, José Fernando Ortega Alvarez, and José María Tarjuelo Martín-Benitez. "Management and Over-exploitation Risk of Water Resources in Semi-arid zones." In 2002 Chicago, IL July 28-31, 2002. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2002. http://dx.doi.org/10.13031/2013.11227.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Arid Zones"

1

Beccali, Marco, Marina Bonomolo, Francesca Martorana, Ben Alex Baby, Marco Pellegrini, and Salvatore Vasta. Show Cases on System and Component Level & Adapted Components. IEA SHC Task 65, April 2024. http://dx.doi.org/10.18777/ieashc-task65-2024-0001.

Full text
Abstract:
This document is the final report for joint activities A2, “Adapted components”, and B1, “Show cases on system and component level” of the IEA SHC Task 65, “Solar Cooling for the Sunbelt Regions. The first part of the report presents results from 32 investigated projects across 18 countries representing a range of 10 weather profiles such as the tropical wet and dry (Aw), hot desert (BWh), hot semi-arid (BSh), hot summer-Mediterranean (Csa), warmsummer Mediterranean (Csb), humid subtropic (Cfa), monsoon-influenced humid subtropical (Cwa), hot summer humid continental climate zones.
APA, Harvard, Vancouver, ISO, and other styles
2

Basani, Marcello, Raúl Muñoz Castillo, Giulia Carscasci, and Jihoon Lee. Piloting Drought Management Participatory Modeling-Based Approaches in Chile. Inter-American Development Bank, January 2024. http://dx.doi.org/10.18235/0005500.

Full text
Abstract:
Chile's unique geography and climatic zones, including the arid Atacama desert in the north and the cold, humid Patagonian zone in the south, represents a challenges for water resource management. Droughts, and particularly mega-droughts, have become more frequent and intense, affecting not only the north but also central regions like the Maipo basin basin, located in the Metropolitan Region. To address these issues, this project aims to develop a Drought Management Plan (DMP) for the Maipo basin, and to support analysis of drought conditions, including characterization of spatial coverage, intensity, and duration, a Drought Management module has been implemented in WaterALLOC, combining the Hydro-BID and MODSIM modeling systems. This case study focuses on the Maipo river basin in Chile, using the Drought Management module in WaterALLOC to simulate response stages for mitigating drought impacts. The study highlights the importance of integrated tools and modeling systems for enhanced water resources planning and decision-making in drought-prone regions. Finally, a capacity training program aimed at strengthening the technical capacities of local stakeholders in water resources management was implemented.
APA, Harvard, Vancouver, ISO, and other styles
3

Lindsay, W., and Amos Banin. Zinc and Cadmium Solubility Controls in Arid-Zone Soils. United States Department of Agriculture, August 1987. http://dx.doi.org/10.32747/1987.7568084.bard.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Brandt, Leslie A., Cait Rottler, Wendy S. Gordon, Stacey L. Clark, Lisa O'Donnell, April Rose, Annamarie Rutledge, and Emily King. Vulnerability of Austin’s urban forest and natural areas: A report from the Urban Forestry Climate Change Response Framework. U.S. Department of Agriculture, Northern Forests Climate Hub, October 2020. http://dx.doi.org/10.32747/2020.7204069.ch.

Full text
Abstract:
The trees, developed green spaces, and natural areas within the City of Austin’s 400,882 acres will face direct and indirect impacts from a changing climate over the 21st century. This assessment evaluates the vulnerability of urban trees and natural and developed landscapes within the City Austin to a range of future climates. We synthesized and summarized information on the contemporary landscape, provided information on past climate trends, and illustrated a range of projected future climates. We used this information to inform models of habitat suitability for trees native to the area. Projected shifts in plant hardiness and heat zones were used to understand how less common native species, nonnative species, and cultivars may tolerate future conditions. We also assessed the adaptability of planted and naturally occurring trees to stressors that may not be accounted for in habitat suitability models such as drought, flooding, wind damage, and air pollution. The summary of the contemporary landscape identifies major stressors currently threatening trees and forests in Austin. Major current threats to the region’s urban forest include invasive species, pests and disease, and development. Austin has been warming at a rate of about 0.4°F per decade since measurements began in 1938 and temperature is expected to increase by 5 to 10°F by the end of this century compared to the most recent 30-year average. Both increases in heavy rain events and severe droughts are projected for the future, and the overall balance of precipitation and temperature may shift Austin’s climate to be more similar to the arid Southwest. Species distribution modeling of native trees suggests that suitable habitat may decrease for 14 primarily northern species, and increase for four more southern species. An analysis of tree species vulnerability that combines model projections, shifts in hardiness and heat zones, and adaptive capacity showed that only 3% of the trees estimated to be present in Austin based on the most recent Urban FIA estimate were considered to have low vulnerability in developed areas. Using a panel of local experts, we also assessed the vulnerability of developed and natural areas. All areas were rated as having moderate to moderate-high vulnerability, but the underlying factors driving that vulnerability differed by natural community and between East and West Austin. These projected changes in climate and their associated impacts and vulnerabilities will have important implications for urban forest management, including the planting and maintenance of street and park trees, management of natural areas, and long-term planning.
APA, Harvard, Vancouver, ISO, and other styles
5

Ginanni, J. M., L. J. O`Neill, D. P. Hammermeister, D. O. Blout, B. L. Dozier, M. J. Sully, K. R. Johnejack, D. F. Emer, and S. W. Tyler. Hydrogeologic characterization of an arid zone Radioactive Waste Management Site. Office of Scientific and Technical Information (OSTI), June 1994. http://dx.doi.org/10.2172/10160784.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Smith, M. L., S. Hostetler, and J. Northey. Managed Aquifer Recharge prospectivity mapping in the Northern Territory arid zone using remotely sensed data. Geoscience Australia, 2020. http://dx.doi.org/10.11636/132540.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Markus Flury, James B. Harsh, Fred Zhang, Glendon W. Gee, Earl D. Mattson, and Peter C. L. LONG-TERM COLLOID MOBILIZATION AND COLLOID-FACILITATED TRANSPORT OF RADIONUCLIDES IN A SEMI-ARID VADOSE ZONE. Office of Scientific and Technical Information (OSTI), August 2012. http://dx.doi.org/10.2172/1060990.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Bonfil, David J., Daniel S. Long, and Yafit Cohen. Remote Sensing of Crop Physiological Parameters for Improved Nitrogen Management in Semi-Arid Wheat Production Systems. United States Department of Agriculture, January 2008. http://dx.doi.org/10.32747/2008.7696531.bard.

Full text
Abstract:
To reduce financial risk and N losses to the environment, fertilization methods are needed that improve NUE and increase the quality of wheat. In the literature, ample attention is given to grid-based and zone-based soil testing to determine the soil N available early in the growing season. Plus, information is available on in-season N topdressing applications as a means of improving GPC. However, the vast majority of research has focused on wheat that is grown under N limiting conditions in sub-humid regions and irrigated fields. Less attention has been given to wheat in dryland that is water limited. The objectives of this study were to: (1) determine accuracy in determining GPC of HRSW in Israel and SWWW in Oregon using on-combine optical sensors under field conditions; (2) develop a quantitative relationship between image spectral reflectance and effective crop physiological parameters; (3) develop an operational precision N management procedure that combines variable-rate N recommendations at planting as derived from maps of grain yield, GPC, and test weight; and at mid-season as derived from quantitative relationships, remote sensing, and the DSS; and (4) address the economic and technology-transfer aspects of producers’ needs. Results from the research suggest that optical sensing and the DSS can be used for estimating the N status of dryland wheat and deciding whether additional N is needed to improve GPC. Significant findings include: 1. In-line NIR reflectance spectroscopy can be used to rapidly and accurately (SEP <5.0 mg g⁻¹) measure GPC of a grain stream conveyed by an auger. 2. On-combine NIR spectroscopy can be used to accurately estimate (R² < 0.88) grain test weight across fields. 3. Precision N management based on N removal increases GPC, grain yield, and profitability in rainfed wheat. 4. Hyperspectral SI and partial least squares (PLS) models have excellent potential for estimation of biomass, and water and N contents of wheat. 5. A novel heading index can be used to monitor spike emergence of wheat with classification accuracy between 53 and 83%. 6. Index MCARI/MTVI2 promises to improve remote sensing of wheat N status where water- not soil N fertility, is the main driver of plant growth. Important features include: (a) computable from commercial aerospace imagery that include the red edge waveband, (b) sensitive to Chl and resistant to variation in crop biomass, and (c) accommodates variation in soil reflectance. Findings #1 and #2 above enable growers to further implement an efficient, low cost PNM approach using commercially available on-combine optical sensors. Finding #3 suggests that profit opportunities may exist from PNM based on information from on-combine sensing and aerospace remote sensing. Finding #4, with its emphasis on data retrieval and accuracy, enhances the potential usefulness of a DSS as a tool for field crop management. Finding #5 enables land managers to use a DSS to ascertain at mid-season whether a wheat crop should be harvested for grain or forage. Finding #6a expands potential commercial opportunities of MS imagery and thus has special importance to a majority of aerospace imaging firms specializing in the acquisition and utilization of these data. Finding #6b on index MCARI/MVTI2 has great potential to expand use of ground-based sensing and in-season N management to millions of hectares of land in semiarid environments where water- not N, is the main determinant of grain yield. Finding #6c demonstrates that MCARI/MTVI2 may alleviate the requirement of multiple N-rich reference strips to account for soil differences within farm fields. This simplicity will be less demanding of grower resources, promising substantially greater acceptance of sensing technologies for in-season N management.
APA, Harvard, Vancouver, ISO, and other styles
9

Smith, Robert W. Trace Metals in Groundwater & Vadose Zone Calcite: In Situ Containment & Stabilization of Stronthium-90 & Other Divalent Metals & Radionuclides at Arid West DOE. Office of Scientific and Technical Information (OSTI), June 2005. http://dx.doi.org/10.2172/893342.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Smith, Robert W. Trace Metals in Groundwater & Vadose Zone Calcite: In Situ Containment & Stabilization of Stronthium-90 & Other Divalent Metals & Radionuclides at Arid West DOE. Office of Scientific and Technical Information (OSTI), June 2005. http://dx.doi.org/10.2172/885256.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Arid Zones' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography