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Academic literature on the topic 'Wetland in drylands'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Wetland in drylands"

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Tooth, Stephen, and Terence S. McCarthy. "Wetlands in drylands: geomorphological and sedimentological characteristics, with emphasis on examples from southern Africa." Progress in Physical Geography: Earth and Environment 31, no. 1 (February 2007): 3–41. http://dx.doi.org/10.1177/0309133307073879.

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Wetlands are poorly documented features of many landscapes, and there is often little understanding of the geomorphological controls on their origin, development and characteristics. This paper addresses the apparent paradox of wetlands in drylands, focusing particularly on the geomorphology and sedimentology of wetlands in southern Africa. Drylands are characterized by high (but variable) levels of aridity, reflecting low ratios between precipitation and potential evapotranspiration, so wetlands can only exist where there are locally positive surface water balances for all or part of the year. Most moderate to large wetlands in drylands are thus maintained by river inflows that combine with other factors that serve to impede drainage or reduce infiltration, including faulting, rock outcrops, swelling soils, and ponding by tributary or aeolian sediments. Together with variations in sediment supply, vegetation communities, and levels of animal activity, this promotes a diverse range of wetlands that span a continuum from permanently inundated, to seasonally inundated, to ephemerally inundated. In detail, every wetland has a unique range of geomorphological and sedimentological characteristics but, at a general level, the dryland setting can be shown to impart some distinctive features. By comparison with humid region (tropical and temperate) wetlands, we propose that many wetlands in drylands are characterized by: 1) more frequent and/or longer periods of desiccation; 2) channels that commonly decrease in size and even disappear downstream; 3) higher levels of chemical sedimentation; 4) more frequent fires that reduce the potential for thick organic accumulations and promote aeolian activity; and 5) longer timescales of development that may extend far back into the Pleistocene. Additional studies of wetlands in different drylands may reveal other distinctive characteristics. Correct identification of the factors giving rise to wetlands, and improved understanding of the geomorphological and sedimentological processes governing their development, is vital for the design of sustainable management guidelines for these diverse yet fragile habitats.
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Roborg, Astrid Storgaard, and Mette Løvschal. "Aldersro wetland-settlement complex." Danish Journal of Archaeology 10 (October 4, 2021): 1–8. http://dx.doi.org/10.7146/dja.v10i0.125120.

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In southern Scandinavia, the Early Iron Age transition is characterised by radical ideological and organisational changes involving new material practices of sorting, delimiting, depositing and discarding artefacts, humans and nonhumans, in both wetlands and drylands. However, settlements and wetland areas are mostly excavated separately, and the deeper relationship between these practices and associated spheres remains somewhat inconclusive. Aldersro, Eastern Jutland, provides an exceptional opportunity to revisit this relationship. A juxtaposed settlement and wetland activity area spanning more than 1.4 hectares were excavated in 2002-2003. The excavations exposed the structural remains of houses, fences, storage buildings, pits and peat graves. Moreover, they disclosed extensive archaeological remains of more than 800 ceramic vessels, processed wood, stones, burnt organic material, human and animal bones subject to 14C, pollen, archaeobotany, zooarchaeology, osteology, and ceramic analyses. The site has provided vital new insights into the diachronic dynamics of depositional and mortuary practices in the Early Iron Age. The highly fragmented remains of more than eight human individuals were mixed and deposited together with typical settlement debris, and would have been exposed right next to a settlement area.
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Lidzhegu, Z., F. Ellery, and S. K. Mantel. "Incorporating Geomorphic Knowledge in the Management of Wetlands in Africa’s Drylands: a Rapid Assessment of the Kafue Wetland." Wetlands 40, no. 2 (May 25, 2019): 391–405. http://dx.doi.org/10.1007/s13157-019-01172-9.

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Larkin, Zacchary T., Timothy J. Ralph, Stephen Tooth, and Terence S. McCarthy. "The interplay between extrinsic and intrinsic controls in determining floodplain wetland characteristics in the South African drylands." Earth Surface Processes and Landforms 42, no. 7 (December 14, 2016): 1092–109. http://dx.doi.org/10.1002/esp.4075.

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Zhang, Yang, and Samsung Lim. "Drivers of Wildfire Occurrence Patterns in the Inland Riverine Environment of New South Wales, Australia." Forests 10, no. 6 (June 24, 2019): 524. http://dx.doi.org/10.3390/f10060524.

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In the inland riverine environment of Australia, wildfires not only threaten human life and cause economic loss but also make distinctive impacts on the ecosystem (e.g., injuring or killing fire-sensitive wetland species such as the river red gum). Understanding the drivers of wildfire occurrence patterns in this particular environment is vital for fire-risk reduction and ecologically sustainable management. This study investigated patterns and driving factors of wildfire occurrence over the years from 2001 to 2016 and across the New South Wales side of the Riverina bioregion. Descriptive analyses were conducted for fires of different causes and that burned different vegetation types. Logistic regression models were developed by incorporating factors that provide information on weather, climate, fuel, topography and ignition sources. Analyses revealed that most fires occurred in summer, with human-caused fires primarily in spring and summer, and natural fires in summer. Summer was the most fire-prone season in forested wetlands, whereas fires in drylands mostly occurred during spring and summer. Fire probabilities were higher under severe weather conditions, in areas with higher annual rainfall, in forested wetlands and in areas with intermediate inundation frequencies. Special attention needs to be paid to the effects of vegetation type and inundation frequency on fire occurrence. Weather, climate&fuel and ignition sources were comparably important in explaining human-caused fire occurrence, whereas weather was more important than climate&fuel in explaining natural fire occurrence. Understandings obtained from this study can potentially support the planning of fire and forest management, as well as to supplement the relatively scarce knowledge on riverine wildfire occurrence.
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Li, Kangkang, Xiaoguang Qin, Bing Xu, Yong Wu, Guijin Mu, Dong Wei, Xiaohong Tian, et al. "New radiocarbon dating and archaeological evidence reveal the westward migration of prehistoric humans in the drylands of the Asian interior." Holocene 31, no. 10 (June 26, 2021): 1555–70. http://dx.doi.org/10.1177/09596836211025968.

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The vast drylands of the Asian interior were an integral part of a transcontinental network connecting east to west, that acted periodically as corridors and routeways for human migration. However, our understanding of the prehistoric human occupation of and interaction with this inhospitable environment has been hindered by a lack of direct evidence from settlements. Here we present the results of the first systematic study of archaeological material and radiocarbon dates from newly-discovered Bronze Age settlements in the hyper-arid Lop Nur region, in the eastern Tarim Basin. The studied settlement (the North Loulan Settlement, NLS), apparently associated with the prehistoric Xiaohe Culture, which is known from the Xiaohe and Gumugou cemeteries, is especially significant for the study of the prehistoric desert-oasis civilization in the drylands of the Asian interior, because it is quite different from any of the contemporary cultures in the surrounding regions. Based on a synthesis of Bayesian-modeled radiocarbon dates, the age of the NLS falls within the range of ca. 2051–1774 BC. Our field investigations indicate that the inhabitants of the site occupied semi-subterranean/semi-cave dwellings on the upper part of high yardangs, suggesting that they were able to utilize island-like yardangs in order to adapt to lake or wetland terrains. The new chronological framework for the Xiaohe cultural sites indicates that the NLS was the first Xiaohe settlement in the Tarim Basin. The earliest settlers, who were influenced by oriental culture, may have migrated to the NLS along the eastern or northeastern corridors. Later, there was the migration of populations westward along rivers.
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Bertram, A., A. Wendleder, A. Schmitt, and M. Huber. "LONG-TERM MONITORING OF WATER DYNAMICS IN THE SAHEL REGION USING THE MULTI-SAR-SYSTEM." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (June 23, 2016): 313–20. http://dx.doi.org/10.5194/isprs-archives-xli-b8-313-2016.

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Fresh water is a scarce resource in the West-African Sahel region, seasonally influenced by droughts and floods. Particularly in terms of climate change, the importance of wetlands increases for flora, fauna, human population, agriculture, livestock and fishery. Hence, access to open water is a key factor. Long-term monitoring of water dynamics is of great importance, especially with regard to the spatio-temporal extend of wetlands and drylands. It can predict future trends and facilitate the development of adequate management strategies. Lake Tabalak, a Ramsar wetland of international importance, is one of the most significant ponds in Niger and a refuge for waterbirds. Nevertheless, human population growth increased the pressure on this ecosystem, which is now degrading for all uses. The main objective of the study is a long-term monitoring of the Lake Tabalak’s water dynamics to delineate permanent and seasonal water bodies, using weather- and daytime-independent multi-sensor and multi-temporal Synthetic Aperture Radar (SAR) data available for the study area. Data of the following sensors from 1993 until 2016 are used: Sentinel-1A, TerraSARX, ALOS PALSAR-1/2, Envisat ASAR, RADARSAT-1/2, and ERS-1/2. All SAR data are processed with the Multi-SAR-System, unifying the different characteristics of all above mentioned sensors in terms of geometric, radiometric and polarimetric resolution to a consistent format. The polarimetric representation in Kennaugh elements allows fusing single-polarized data acquired by older sensors with multi-polarized data acquired by current sensors. The TANH-normalization guarantees a consistent and therefore comparable description in a closed data range in terms of radiometry. The geometric aspect is solved by projecting all images to an earth-fixed coordinate system correcting the brightness by the help of the incidence angle. The elevation model used in the geocoding step is the novel global model produced by the TanDEM-X satellite mission. The advantage of the Multi-SAR-System is that it comprises ortho-rectification, radiometric enhancement, normalization and Kennaugh decomposition, independent from sensors, modes, polarizations or acquisition date of SAR data. In addition, optical satellite data can be included as well, to fill gaps where SAR data are missing due to the special normalization scheme. This kind of pre-processing is exclusively implemented at the Earth Observation Center of the German Aerospace Center in Oberpfaffenhofen, Germany. Therefore, the dynamic change of the open water of the Lake Tabalak could be classified over dry and rainy seasons and years, using different SAR data. The study provides a unique database and contributes to a better understanding of wetland systems in the Sahel region influenced by human pressure and climate change.
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Bertram, A., A. Wendleder, A. Schmitt, and M. Huber. "LONG-TERM MONITORING OF WATER DYNAMICS IN THE SAHEL REGION USING THE MULTI-SAR-SYSTEM." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (June 23, 2016): 313–20. http://dx.doi.org/10.5194/isprsarchives-xli-b8-313-2016.

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Fresh water is a scarce resource in the West-African Sahel region, seasonally influenced by droughts and floods. Particularly in terms of climate change, the importance of wetlands increases for flora, fauna, human population, agriculture, livestock and fishery. Hence, access to open water is a key factor. Long-term monitoring of water dynamics is of great importance, especially with regard to the spatio-temporal extend of wetlands and drylands. It can predict future trends and facilitate the development of adequate management strategies. Lake Tabalak, a Ramsar wetland of international importance, is one of the most significant ponds in Niger and a refuge for waterbirds. Nevertheless, human population growth increased the pressure on this ecosystem, which is now degrading for all uses. The main objective of the study is a long-term monitoring of the Lake Tabalak’s water dynamics to delineate permanent and seasonal water bodies, using weather- and daytime-independent multi-sensor and multi-temporal Synthetic Aperture Radar (SAR) data available for the study area. Data of the following sensors from 1993 until 2016 are used: Sentinel-1A, TerraSARX, ALOS PALSAR-1/2, Envisat ASAR, RADARSAT-1/2, and ERS-1/2. All SAR data are processed with the Multi-SAR-System, unifying the different characteristics of all above mentioned sensors in terms of geometric, radiometric and polarimetric resolution to a consistent format. The polarimetric representation in Kennaugh elements allows fusing single-polarized data acquired by older sensors with multi-polarized data acquired by current sensors. The TANH-normalization guarantees a consistent and therefore comparable description in a closed data range in terms of radiometry. The geometric aspect is solved by projecting all images to an earth-fixed coordinate system correcting the brightness by the help of the incidence angle. The elevation model used in the geocoding step is the novel global model produced by the TanDEM-X satellite mission. The advantage of the Multi-SAR-System is that it comprises ortho-rectification, radiometric enhancement, normalization and Kennaugh decomposition, independent from sensors, modes, polarizations or acquisition date of SAR data. In addition, optical satellite data can be included as well, to fill gaps where SAR data are missing due to the special normalization scheme. This kind of pre-processing is exclusively implemented at the Earth Observation Center of the German Aerospace Center in Oberpfaffenhofen, Germany. Therefore, the dynamic change of the open water of the Lake Tabalak could be classified over dry and rainy seasons and years, using different SAR data. The study provides a unique database and contributes to a better understanding of wetland systems in the Sahel region influenced by human pressure and climate change.
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Suparmin, I. Ketut Budastra, and Tajidan. "Farmer household food security in two dimensions in Lombok, Indonesia." IOP Conference Series: Earth and Environmental Science 1107, no. 1 (December 1, 2022): 012093. http://dx.doi.org/10.1088/1755-1315/1107/1/012093.

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Abstract Household food security is faced with two important problems, namely how to expand income sources and how to properly distribute their income for life necessities. The purpose of this study was to analyze the comparison of the distribution patterns of household income and expenditure of wetland farmers with dry land and to analyze the determinants that affect the household food security of wetland and dryland farmers in Lombok Island. The research design used a cross-sectional study with a survey method. The collected data will be analyzed using qualitative and quantitative data analysis methods. In general, the qualitative data analysis used is policy analysis (program evaluation), institutional analysis, potential analysis, and priority determination of community-level problems. Qualitative data analysis was carried out through the process of filtering data, categorizing, concluding, and retesting. Quantitative data analysis used a logistic regression model. The results of the study concluded that: The sources of income of farmers in wetlands are more varied than those of dryland farmers. Meanwhile, wetland farmers household expenditures are relatively the same as wetland farmers. The food security of wetland farmer households (90%) is better than farmer households in dryland (83.3%). Meanwhile, wetland farmer household food insecurity is lower than wetland farmer households. The distribution pattern of wetland farmer household income comes from rice, and maize cultivation, while in dryland areas, it is sourced from rice, corn, and soybean farming. Distribution patterns Household expenditure of wetland and dryland farmers is divided into expenditures for food and non-food. The factors that determine household food security in dry and wetland areas are farmer household income.
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Leigh, Catherine, Fran Sheldon, Richard T. Kingsford, and Angela H. Arthington. "Sequential floods drive 'booms' and wetland persistence in dryland rivers: a synthesis." Marine and Freshwater Research 61, no. 8 (2010): 896. http://dx.doi.org/10.1071/mf10106.

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Flow is a key driver regulating processes and diversity in river systems across a range of temporal and spatial scales. In dryland rivers, variability in the timing and scale of floods has specific ecological significance, playing a major role in sustaining biotic diversity across the river-floodplain mosaic. However, longitudinal effects of floods are equally important, delivering water downstream through channels and wetland complexes. Interaction among spatially distributed wetlands, their connecting channel and floodplain geomorphology and the temporally variable flow events not only creates the spatial complexity in dryland rivers but also determines temporal persistence of wetlands. These act as hydrological ‘sponges’, absorbing water from upstream and needing to fill before releasing water downstream. Sequential high flow events are essential for the ecological persistence of riverine wetlands and the transmission of flows further downstream through the channel network. These flood sequences maintain aquatic refugia and drive booms in productivity sustaining aquatic and terrestrial biota over large spatial and temporal scales. Disrupting the sequence, with modified flow regimes and water removal for diversion (e.g. irrigation), significantly reduces the opportunity for wetland replenishment. As a result, the benefits of sequential flooding to the wetland ‘sponges’ and their biotic communities will be lost.
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Dissertations / Theses on the topic "Wetland in drylands"

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Shi, Lu. "Plant perception and responses to hypoxia and water stresses in wetland and dryland ecotypes of rice and reed." HKBU Institutional Repository, 2013. http://repository.hkbu.edu.hk/etd_ra/1485.

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Brown, Alex. "Wetlands and drylands in prehistory : Mesolithic to Bronze Age human activity and impact in the Servern Estuary, southwest Britain." Thesis, University of Reading, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421620.

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Simmonds, Mike. "Examining the relationship between environmental change and human activities at the dryland-wetland interface during the Late Upper Palaeolithic and Mesolithic in Southeast England." Thesis, University of Reading, 2017. http://centaur.reading.ac.uk/73342/.

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This thesis investigates environmental change across the Late Glacial and Early Holocene boundary in southeast England, and places these results within their archaeological setting. This has developed our understanding of vegetation change during a period of climatic variability, and enhanced our knowledge of environmental change and the environmental context of human activities. The County of Surrey formed the research focus because of the diverse assemblages of Upper Palaeolithic and Mesolithic archaeology, and preliminary studies suggested a relationship with human activities at the ecotonal boundary between wetland and dryland. The research focused on palaeoenvironmental investigations from four sites: Thursley Bog, Ockley Bog, Elstead Bog B and Langshot Bog, studied using sedimentological, pollen, stable isotope and microscopic charcoal analyses to generate high-resolution reconstructions of climate change, vegetation succession and fire histories. The results have provided important contributions to our understanding of climatic change and vegetation succession, with evidence for a downturn in climate during the Loch Lomond Stadial. Evidence also indicates the presence of Corylus, Alnus and Pinus at earlier dates than previously observed within southeast England. Analyses of archaeological data suggest that sites at the wetland/dryland interface are likely to have been frequently visited by Late Upper Palaeolithic and Mesolithic groups. The archaeological and palaeoenvironmental records suggest that people exploited their environment for hunting and gathering during the Late Upper Palaeolithic and Early Mesolithic. During the Later Mesolithic there is some evidence for the anthropogenic use of fire to create or maintain woodland clearings to attract animals for hunting. Overall, this research has resulted in a greater picture of human activities and environmental change during the Late Glacial and Early Holocene in Surrey. It is likely that people interacted with the environment during the Late Upper Palaeolithic and Mesolithic, but this was predominantly comprised of environmental exploitation rather than large-scale manipulation.
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Manyanga, Munyaradze. "Resilient Landscapes: socio-environmental dynamics in the Shashi-Limpopo Basin, southern Zimbabwe c. AD 800 to the present." Doctoral thesis, Uppsala University, Archaeology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7205.

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The general perception today is that the Shashi-Limpopo Basin in southern Africa is hot and dry and not conducive to human habitation. Today there is no doubt that the Shashi-Limpopo Basin has been home to many communities throughout the pre-historical period. A study of the changing ecological conditions in the Mateke Hills and the Shashi-Limpopo Valley as well as historical and present day land-usage offers an alternative explanation of how prehistoric communities could have interacted with this changing landscape. The archaeological record, historical sources and recent land-use patterns show that settlement location has always been orientated towards the rivers and circumscribed environments. The mosaic of floodplains, wetlands, drylands and circumscribed zones provided the ideal ecological setting for the development of socio-political complexity in southern Africa. The resilience of these semi arid savanna regions together with human innovation and local knowledge ensured that societies continued to derive subsistence even in the face of seasonal variability in rainfall and even climate change.

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"Watershed Nitrogen Transport, Retention, and Fate in Dryland and Urban Ecosystems." Doctoral diss., 2019. http://hdl.handle.net/2286/R.I.54898.

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abstract: Nitrogen is an essential, often limiting, element for biological growth that can act as a pollutant if present in excess. Nitrogen is primarily transported by water from uplands to streams and eventually to recipient lakes, estuaries, and wetlands, but can be modulated by biological uptake and transformation along these flowpaths. As a result, nitrogen can accumulate in aquatic ecosystems if supply is high or if biological retention is low. Dryland and urban ecosystems offer interesting contrasts in water supply, which limits transport and biological activity in drylands, and nitrogen supply that increases with human activity. In my dissertation, I ask: What is the relative balance among nitrogen retention, removal, and transport processes in dryland watersheds, and what is the fate of exported nitrogen? My dissertation research demonstrates that water is a major control on where and when nitrogen is retained and removed versus exported to downstream ecosystems. I used a mass-balance model based on synoptic surveys to study seasonal and spatial patterns in nitrate loading to a dryland stream network. I found that irrigation diversions transport nitrate from agricultural areas to the stream network year-round, even during dry seasons, and are an important driver of nitrate loading. I further explored how seasonal precipitation influences flood nutrient export in an intermittent desert stream by coupling long-term data of flood-water chemistry with stream discharge and precipitation data. I found that higher precipitation prior to a flood fills water storage sites in the catchment, leading to larger floods. In addition, higher antecedent precipitation stimulates biological nitrogen retention in the uplands, leading to lower nitrogen concentration in floods. Finally, I evaluated the consequences of nitrogen export from watersheds on how urban wetlands attenuate nitrate through denitrification that permanently removes nitrogen, and dissimilatory nitrate reduction to ammonium (DNRA) that retains nitrogen in another biologically reactive form. I found that DNRA becomes proportionally more important with low nitrate concentration, thereby retaining nitrogen as ammonium. Collectively, my dissertation research addresses how dryland and urban ecosystems can be integrated into models of watershed nitrogen cycling.
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Doctoral Dissertation Biology 2019
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Shange, Lindiwe Princess. "Taro [Colocasia esculenta (L.) Schott] production by small-scale farmers in KwaZulu-Natal : farmer practices and performance of propagule types under wetland and dryland conditions." Thesis, 2004. http://hdl.handle.net/10413/5532.

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Ethno-archaeological evidence shows that taro [Colocasia esculenta (L.) Schott] originated in Asia. It may have been brought into South Africa a few hundred years after 300 BC from Madagascar, where Malaysian settlers introduced it about 300 BC. The crop is grown in the tropical and subtropical regions of the world, largely for subsistence on farms. In South Africa, taro is mainly produced in the subtropical coastal belt, stretching from Bizana in the Eastern Cape to the KwaZulu-Natal north coast. Although it is a staple crop for the subsistence farmers who grow it, there are no data on taro agronomy in South Africa. The hypothesis of this study was that traditional knowledge about taro production practices is not adequate to form a basis for agronomic and extension interventions to promote the status of the crop to that of a commercial commodity. A survey was conducted at two districts in KwaZulu-Natal, Umbumbulu and Ndwedwe, where taro is a staple crop. The objective of the survey was to determine the cultural practices associated with taro production, including knowledge about varieties, agronomy, plant protection, storage and marketing. Qualitative data obtained from the survey was used to plan an investigation into the agronomy of taro. The survey showed that subsistence farmers at Ndwedwe and Umbumbulu used traditional methods for taro production that had very small influence from the extension services from the Department of Agriculture. The farmers identified three varieties of taro, which they designated as the "red", "white" and "Zulu" types. The "red" and "white" designations were based on consistent crop morphological characteristics. This finding confirmed the reliability of indigenous knowledge for crop classification.The survey also revealed that wetland and dryland conditions are used to produce taro. At Umbumbulu, production occurred predominantly under dryland conditions, whereas at Ndwedwe there was an almost even utilisation of both wetlands and drylands. At both locations, the farmers estimated plant spacing using their feet, which showed that the plant populations would be about 18400 plants ha(-1). Full corms were a predominant type of propagation material. In the light of the survey findings about site types (wetland or dryland), propagation material and plant spacing for taro production, field experiments were designed to 1) determine the effect of site type on taro production, 2) compare three propagule types (full corm, full corm with a shoot and half corm) in taro production and 3) examine the effect of planting density (18400, 24600 and 37000 plants ha(-1) on the performance of propagules with respect to production under wetland and dryland conditions. Field experiments showed that wetland cultivation improved taro yield by 40% compared with dryland production. However, in each of the two site categories, there were significant differences between sites. Using full corms with shoots also enhanced taro yield (42% > full corms without shoots and 66% > half corms), when means were determined across all sites and planting densities. Increasing planting density also caused an increase in taro production (4.9 t ha (-1), 6.8 t ha (-1) and 11.5 t ha (-1), for 18400,24600 and 37000 plants ha,(-1), respectively; LSD (0.05) = 1.4 t ha,1). The enhanced performance of taro under wetland conditions, where corms with a shoot were used and at high planting densities may have been associated with photosynthetic efficiency. Wetland conditions and corms with shoots improved plant emergence and plant growth, which are essential agronomic conditions for efficient capture of the sun's energy for photosynthesis. It is proposed that using propagules with shoots and high plant populations under dryland conditions could enhance taro production. Although wetland cultivation enhanced yield, the survey showed that the total area of land that could be used for wetland cultivation at Ndwedwe and Umbumbulu was too small to warrant sustainable wetland production.
Thesis (M.Sc.Agric.)-University of KwaZulu-Natal, Pietermaritzburg, 2004.
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Books on the topic "Wetland in drylands"

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Woodhouse, Philip. African enclosures?: The social dynamics of wetlands in drylands. Trenton, NJ: Africa World Press, 2001.

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Scoones, Ian. Wetlands in drylands: Key resources for agricultural and pastoral production in Africa. London: IIED, International Institute for Environment and Development, 1992.

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Kevin, Colls, and Chapman Henry 1973-, eds. Living with the flood: Mesolithic to post-medieval archaeological remains at Mill Lane, Sawston, Cambridgeshire : a wetland/dryland interface. Philadelphia: Oxbow Books, 2015.

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African Enclosures? The Social Dynamics of Wetlands in Drylands. Africa World Press, 2001.

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Ian, Scoones, Hottinga Folkert, Peters Henk, Zanen Sjoerd, and Drylands Programme, eds. Wetlands in drylands: The agroecology of savanna systems in Africa. London: International Institute for Environment and Development, 1991.

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Ian, Scoones, Kokwe Misael, and Drylands Programme, eds. Wetlands in drylands: The agroecology of savanna systems in Africa. London: International Institute for Environment and Development, 1991.

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Wetlands in drylands: The agroecology of savanna systems in Africa. London: International Institute for Environment and Development, 1991.

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Ian, Scoones, Cousins Ben, and Drylands Programme, eds. Wetlands in drylands: The agroecology of savanna systems in Africa. London: International Institute for Environment and Development, 1991.

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Ian, Scoones, Fre Zeremariam, and Drylands Programme, eds. Wetlands in drylands: The agroecology of savanna systems in Africa. London: International Institute for Environment and Development, 1991.

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Ian, Scoones, Ingram Julie, and Drylands Programme, eds. Wetlands in drylands: The agroecology of savanna systems in Africa. London: International Institute for Environment and Development, 1991.

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Book chapters on the topic "Wetland in drylands"

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García, Angela Kronenburg, Andrea Pase, Tobias Haller, Luís Artur, Sá Nogueira Lisboa, Monika Mętrak, Marina Bertoncin, and Malgorzata Suska-Malawska. "Wetlands in drylands." In Drylands Facing Change, 53–72. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003174486-6.

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Bell, Richard W. "Sulfur and the Production of Rice in Wetland and Dryland Ecosystems." In Agronomy Monographs, 197–218. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr50.c13.

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Tooth, Stephen, Mark Vandewalle, Douglas G. Goodin, and Kathleen A. Alexander. "The Chobe-Zambezi Channel-Floodplain System: Anatomy of a Wetland in a Dryland." In Landscapes and Landforms of Botswana, 117–30. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86102-5_7.

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Guelmami, Anis, Dilara Arslan, and Lisa Ernoul. "Assessing the Impacts of Land Use and Land Cover Changes 1984-2020 on Wetland Habitats in the Gediz Delta (Turkey)." In Climatic and Environmental Significance of Wetlands, 12–23. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-9289-2.ch002.

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Monitoring land use / land cover changes is essential for planning and management activities to conserve a particular habitat. In this study, the authors mapped land use / land cover changes in the Gediz Delta (Turkey) between 1984-2020 using Earth Observation and Geographic Information Systems. The maps were built upon the Horizon-2020 satellite-based wetlands observation service processing methodology and algorithms. The authors compared changes inside and outside the Ramsar Area in the Gediz Delta. The results indicate more than 147% increase in built-up areas and decreases of 33% in natural wetland habitats and 27% in natural drylands. The urbanization occurred mainly outside of the Ramsar designated site, but within the Ramsar site, there were increases in artificial wetland habitats and sea waters, with losses in natural wetland habitats. This study provides important monitoring information for managing the land resource in order to conserve the delta and its biodiversity in the future.
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Allen, Michael J. "Drylands and wetlands; soils, sediments and snails." In Environment, Archaeology and Landscape: Papers in honour of Professor Martin Bell, 99–110. Archaeopress Publishing Ltd, 2021. http://dx.doi.org/10.2307/j.ctv27950c7.16.

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"Wetlands and drylands in the Sahel: the urgent need for good joint governance." In The Governance of Rangelands, 130–47. Routledge, 2014. http://dx.doi.org/10.4324/9781315768014-13.

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Boer, Rizaldi, and Arjunapermal R. Subbiah. "Agricultural Drought in Indonesia." In Monitoring and Predicting Agricultural Drought. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780195162349.003.0037.

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Indonesia is the largest archipelago in the world and comprises 5 main islands and about 30 smaller archipelagos. In total, there are 13,667 islands and islets, of which approximately 6,000 are inhabited. The estimated area of the Republic of Indonesia is 5,193,250 km2, which consists of a land territory of slightly more than 2,000,000 km2 and a sea territory of slightly more than 3,150,000 km2. Indonesia’s five main islands are Sumatra (473,606 km2); Java and Madura (132,187 km2), the most fertile and densely populated islands; Kalimantan or two-thirds of the island of Borneo (539,460 km2); Sulawesi (189,216 km2); and Irian Jaya (421,981 km2), the least densely populated island, which forms part of the world’s second largest island of New Guinea. Of about 200 million ha of land territory, about 50 million ha area is devoted to various agricultural activities. There is nearly 20 million ha of arable land, of which about 40% is wetland (rice fields), 40% is dryland, and 15% is shifting cultivation. In the early 1970s, agriculture contributed about 33% to the gross domestic product. Its share decreased to 23% by the early 1980s and to 16.3% in 1996. However, agriculture is the most important sector in the national economy due to its capacity to employ 41% of the labor force (MoE, 1999). Agriculture is vulnerable to drought. Ditjenbun (1995) reported that in 1994 many seedlings and young plants died due to a long dry season: about 22% of tea plants at age of 0–2 years, 4–9% of rubber plants at age of 0–1 year, 4% of cacao plants at age of 0–2 years, 1.5–11% of cashew nut plants at age of 0–2 years, 4% of coffee plants at age of 0–2 years, and 5–30% of coconut plants at age of 0–2 years. The impact of a long dry season on yields of plantation crops becomes known only a few months later. For example, oil palm production is known 6–12 months after a long dry season (Hasan et al., 1998). Rice is the main food crop severely affected by drought.
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Conference papers on the topic "Wetland in drylands"

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Shoewu, Oluwagbemiga Omotayo, Lateef Adesola Akinyemi, and Lawrence Oborkhale. "Towards Developing Path loss Models for Dryland and Wetland Environments." In 2019 IEEE AFRICON. IEEE, 2019. http://dx.doi.org/10.1109/africon46755.2019.9134041.

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SAND, STEVEN G., PATRICIA M. SACO, LI WEN, NEIL SAINTILAN, GEORGE KUCZERA, GERARDO RICCARD, and JOSE F. RODRIGUEZ. "PREDICTING THE RESILIENCE OF DRYLAND WETLANDS AFFECTED BY DROUGHTS." In 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-1262.

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You might also be interested in the extended bibliographies on the topic 'Wetland in drylands' for particular source types:
Journal articles
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