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结果 31-40 的 228
Ecosystem Services in the Water-Energy-Food Nexus 全文
2015
Bekchanov, Maksud | Ringler, Claudia | Mueller, Marc
Ecosystem Services in the Water-Energy-Food Nexus 全文
2015
Bekchanov, Maksud | Ringler, Claudia | Mueller, Marc
Given their substantial societal benefits, such as supporting economic activities and providing better livelihoods in rural areas, ecosystem services should gain higher importance in water-food-energy nexus debates. Yet, not all values from ecosystems are quantifiable, data is often not adequate and methods of measuring these values are not sound. This situation challenges researchers and water managers to improve research tools and give adequate attention to ecosystem services by implementing interdisciplinary approaches and integrated management of ecosystems and their services.
显示更多 [+] 显示较少 [-]Ecosystem services in the water-energy-food nexus 全文
2015
Bekchanov, Maksud | Ringler, Claudia | Mueller, M.
Given their substantial societal benefits, such as supporting economic activities and providing better livelihoods in rural areas, ecosystem services should gain higher importance in water-food-energy nexus debates. Yet, not all values from ecosystems are quantifiable, data is often not adequate and methods of measuring these values are not sound. This situation challenges researchers and water managers to improve research tools and give adequate attention to ecosystem services by implementing interdisciplinary approaches and integrated management of ecosystems and their services.
显示更多 [+] 显示较少 [-]Climate and southern Africa’s water–energy–food nexus 全文
2015
Conway, D. | Garderen, E.A. van | Deryng, Delphine | Dorling, S. | Krueger, T. | Landman, W. | Lankford, B.A. | Lebek, L. | Osborn, T. | Ringler, Claudia | Thurlow, James | Zhu, T. | Dalin, C.
Climate and southern Africa’s water–energy–food nexus 全文
2015
Conway, D. | Garderen, E.A. van | Deryng, Delphine | Dorling, S. | Krueger, T. | Landman, W. | Lankford, B.A. | Lebek, L. | Osborn, T. | Ringler, Claudia | Thurlow, James | Zhu, T. | Dalin, C.
Climate and southern Africa's water–energy–food nexus 全文
2015
Conway, Declan; van Garderen, Emma A.; Deryng, Delphine; Dorling, Steve; Krueger, Tobias; Landman, Willem; Lankford, Bruce; Lebek, Karen; Osborn, Tim; Ringler, Claudia; Thurlow, James; Zhu, Tingju; Dalin, Carole | http://orcid.org/0000-0002-6882-3551 Zhu, Tingju; http://orcid.org/0000-0003-3414-374X Thurlow, James; http://orcid.org/0000-0002-8266-0488 Ringler, Claudia;
PR | CRP5; ISI; Southern Africa‘s hydro-economy and water security (SAHEWS) | EPTD; DSGD | CGIAR Research Program on Water, Land and Ecosystems (WLE)
显示更多 [+] 显示较少 [-]Climate and southern Africa’s water–energy–food nexus 全文
2015
Conway, D. | Garderen, E.A. van | Deryng, Delphine | Dorling, S. | Krueger, T. | Landman, W. | Lankford, B.A. | Lebek, L. | Osborn, T. | Ringler, Claudia | Thurlow, James | Zhu, T. | Dalin, C.
Climate and southern Africa's water–energy–food nexus 全文
2015
dorling steve | conway declan | zhu tingju | http://orcid.org/0000-0003-3414-374x thurlow james | http://orcid.org/0000-0002-8266-0488 ringler claudia | landman willem | ringler claudia | deryng delphine | osborn tim | dalin carole | http://orcid.org/0000-0002-6882-3551 zhu tingju | van garderen emma a. | lebek karen | thurlow james | lankford bruce | krueger tobias
CGIAR Research Program on Water, Land and Ecosystems (WLE) | Conway Declan et al., 'Climate and southern Africa's water–energy–food nexus', Nature Climate Change 5, IFPRI, 2015
显示更多 [+] 显示较少 [-]the IMPACT-Water model | Modeling water availability and food security -- a global perspective
2015
Rosegrant, Mark W.; Cai, Ximing
EPTD | IFPRI1 | Working paper | Non-PR
显示更多 [+] 显示较少 [-]Food-water security and virtual water trade in the Middle East and North Africa 全文
2015
Antonelli, Marta | Tamea, Stefania
The purpose of this study is to analyze the political economy of food-water security in the water-scarce Middle East and North Africa region. The study deploys the lens of virtual water trade to determine how the region's economies have met their rising food-water requirements over the past three decades. It is shown that the region's water and food security currently depend to a considerable extent on water from outside the region, ‘embedded’ in food imports and accessed through trade. The analysis includes blue (surface and groundwater) and green water resources.
显示更多 [+] 显示较少 [-]The Water – Energy – Food Nexus and Climate Change Adaptation 全文
2015
Holtermann, Talin | Nandalal, K.D.W.
This report explores the exposure and vulnerability of Korea and the Southern African region to climate-driven impacts in the Water-Energy-Food (WEF) nexus. It presents the building of ecological networks as a mean to address climate change - induced alterations of ecosystems and the consequences for humans and nature. Reducing the asymmetry between price and value of water resources is identified as an essential aspect to enable sound resource management use decisions. The report highlights the need for comprehensive tools which assist decision makers in dealing with the complexity of WEF nexus interrelations and facilitate sustainable resource management.
显示更多 [+] 显示较少 [-]Irrigation infrastructure and water appropriation rules for food security 全文
2015
Gohar, Abdelaziz A. | Amer, Saud A. | Ward, Frank A.
In the developing world’s irrigated areas, water management and planning is often motivated by the need for lasting food security. Two important policy measures to address this need are improving the flexibility of water appropriation rules and developing irrigation storage infrastructure. Little research to date has investigated the performance of these two policy measures in a single analysis while maintaining a basin wide water balance. This paper examines impacts of storage capacity and water appropriation rules on total economic welfare in irrigated agriculture, while maintaining a water balance. The application is to a river basin in northern Afghanistan. A constrained optimization framework is developed to examine economic consequences on food security and farm income resulting from each policy measure. Results show that significant improvements in both policy aims can be achieved through expanding existing storage capacity to capture up to 150 percent of long-term average annual water supplies when added capacity is combined with either a proportional sharing of water shortages or unrestricted water trading. An important contribution of the paper is to show how the benefits of storage and a changed water appropriation system operate under a variable climate. Results show that the hardship of droughts can be substantially lessened, with the largest rewards taking place in the most difficult periods. Findings provide a comprehensive framework for addressing future water scarcity, rural livelihoods, and food security in the developing world’s irrigated regions.
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