globalchange  > 气候变化事实与影响
DOI: 10.5194/hess-18-4289-2014
Scopus记录号: 2-s2.0-84908701652
论文题名:
An assessment of global net irrigation water requirements from various water supply sources to sustain irrigation: Rivers and reservoirs (1960–2050)
作者: Yoshikawa S; , Cho J; , Yamada H; G; , Hanasaki N; , Kanae S
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2014
卷: 18, 期:10
起始页码: 4289
结束页码: 4310
语种: 英语
Scopus关键词: Climate change ; Irrigation ; Productivity ; Reservoirs (water) ; Rivers ; Water ; Water supply ; Agricultural productivity ; Global water resources ; Irrigation water requirements ; Irrigation water use ; Simulated results ; Simulation Design ; Water requirements ; Water supply sources ; Water resources
英文摘要: Water supply sources for irrigation (e.g. rivers and reservoirs) are critically important for agricultural productivity. The current rapid increase in irrigation water use is considered unsustainable and threatens food production. In this study, we estimated the time-varying dependence of irrigation water requirements from water supply sources, with a particular focus on variations in irrigation area during past (1960-2001) and future (2002-2050) periods using the global water resources model, H08. The H08 model can simulate water requirements on a daily basis at a resolution of 1.0° × 1.0° latitude and longitude. The sources of irrigation water requirements in the past simulations were specified using four categories: rivers (RIV), large reservoirs (LR) with a storage capacity greater than 1.0 × 109 m3, medium-size reservoirs (MSR) with storage capacities ranging from 1.0 × 109 m3 to 3.0 × 106 m3, and non-local non-renewable blue water (NNBW). The simulated results from 1960 to 2001 showed that RIV, MSR and NNBW increased significantly from the 1960s to the early 1990s globally, but LR increased at a relatively low rate. After the early 1990s, the increase in RIV declined as it approached a critical limit, due to the continued expansion of irrigation area. MSR and NNBW increased significantly, during the same time period, following the expansion of the irrigation area and the increased storage capacity of the medium-size reservoirs. We also estimated future irrigation water requirements from the above four water supply sources and an additional water supply source (ADD) in three future simulation designs; irrigation area change, climate change, and changes in both irrigation area and climate. ADD was defined as a future increase in NNBW. After the 2020s, MSR was predicted to approach the critical limit, and ADD would account for 11-23% of the total requirements in the 2040s.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78094
Appears in Collections:气候变化事实与影响

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作者单位: Tokyo Institute of Technology, Tokyo, Japan; Pukyong National University, Busan, South Korea; National Institute for Environmental Studies, Ibaraki, Japan

Recommended Citation:
Yoshikawa S,, Cho J,, Yamada H,et al. An assessment of global net irrigation water requirements from various water supply sources to sustain irrigation: Rivers and reservoirs (1960–2050)[J]. Hydrology and Earth System Sciences,2014-01-01,18(10)
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