A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Exploring water fluxes for agricultural production in African croplands
The deteriorating status of water scarcity and food insecurity poses a global challenge, driven by population growth, rapid urbanization, socio-economic developments, shifting consumption patterns, inefficient resource use, and climate change impacts. Agriculture, the largest user of freshwater and land resources, faces constraints due to diminishing availability of both blue and green water resources, leading to food shortages and increased vulnerabilities, particularly in Africa’s developing regions. Recent trends in Africa show expansions in both rainfed and irrigated croplands. However, agricultural extensification strategies can disrupt ecosystems and biodiversity, notably in targeted floodplain wetlands, and exacerbate competition for scarce blue water resources, especially in arid regions and transboundary river basins. This thesis underscores the pressing need for agricultural intensification, emphasizing the enhancement of productivity on existing croplands. The aim of this research is to identify and quantify the potential for increasing crop yields while conserving water and land resources across diverse agricultural systems in Egypt, Sudan, Ethiopia, and Tanzania. Additionally, this research aims to provide insights into the implications of potential improvements for future crop intensification and the associated demand for water and land resources. To achieve these multidisciplinary aims in such data-scarce regions, this research has developed novel methodological approaches. These approaches integrate open-access remote sensing datasets and secondary data to accurately monitor agricultural systems and associated parameters including land use, land cover, precipitation, actual and potential evapotranspiration, crop yield, and crop transpiration. This thesis has demonstrated how these transferrable methodological approaches offer in-depth insights into the performance of agricultural systems, by calculating performance indicators including water use efficiency, crop water productivity, land ...
Exploring water fluxes for agricultural production in African croplands
The deteriorating status of water scarcity and food insecurity poses a global challenge, driven by population growth, rapid urbanization, socio-economic developments, shifting consumption patterns, inefficient resource use, and climate change impacts. Agriculture, the largest user of freshwater and land resources, faces constraints due to diminishing availability of both blue and green water resources, leading to food shortages and increased vulnerabilities, particularly in Africa’s developing regions. Recent trends in Africa show expansions in both rainfed and irrigated croplands. However, agricultural extensification strategies can disrupt ecosystems and biodiversity, notably in targeted floodplain wetlands, and exacerbate competition for scarce blue water resources, especially in arid regions and transboundary river basins. This thesis underscores the pressing need for agricultural intensification, emphasizing the enhancement of productivity on existing croplands. The aim of this research is to identify and quantify the potential for increasing crop yields while conserving water and land resources across diverse agricultural systems in Egypt, Sudan, Ethiopia, and Tanzania. Additionally, this research aims to provide insights into the implications of potential improvements for future crop intensification and the associated demand for water and land resources. To achieve these multidisciplinary aims in such data-scarce regions, this research has developed novel methodological approaches. These approaches integrate open-access remote sensing datasets and secondary data to accurately monitor agricultural systems and associated parameters including land use, land cover, precipitation, actual and potential evapotranspiration, crop yield, and crop transpiration. This thesis has demonstrated how these transferrable methodological approaches offer in-depth insights into the performance of agricultural systems, by calculating performance indicators including water use efficiency, crop water productivity, land ...
Exploring water fluxes for agricultural production in African croplands
Ayyad, Saher (author) / Becker, Mathias / Ribbe, Lars
2024-07-11
Theses
Electronic Resource
English
food security , water security , crop intensification , sustainable intensification , agricultural intensification , water productivity , water use efficiency , remote sensing , resources management , scenario development , Africa , Nile , Egypt , Sudan , Ethiopia , Tanzania , yield gap , evapotranspiration , GIS , ddc:630 , ddc:710 , ddc:550 , ddc:500
Seasonal energy storage using bioenergy production from abandoned croplands
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Seasonal energy storage using bioenergy production from abandoned croplands
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Remote Sensing of Global Croplands for Food Security
Online Contents | 2010