中文版 | English
G2TT
来源类型Article
规范类型其他
DOI10.1007/s11431-009-0347-2
Consumptive water use in cropland and its partitioning: A high-resolution assessment.
Liu J
发表日期2009
出处Science in China Series E: Technological Sciences 52 (11): 3309-3314
出版年2009
语种英语
摘要Spatially explicit assessments of consumptive water use (CWU) are still at an early stage, and partitioning of CWU has rarely been studied on large scales. In this article, CWU is assessed for China's cropland with a spatial resolution of 30 arc-minutes. The partitioning of CWU is discussed through the simulation of transpiration ratios. The total CWU for Chinese cropland was 839 km3/a during 1998-2002. Spatial distribution of CWU is closely related to cropland area and crop production with the highest CWU in the North China Plain. Transpiration accounts for two-thirds of CWU. The transpiration ratio is affected by precipitation and irrigation. Transpiration ratios are higher in irrigated systems than in rainfed systems when precipitation is low. Competition of water use will impose pressure on China's irrigation systems in the near future, and it will have a far-reaching effect on the partitioning of consumptive water use. Attention should be paid to green water management and technological improvements to guarantee China's water and food security.
主题Forestry (FOR)
关键词GEPIC Evapotranspiration Evaporation Transpiration Transpiration ratio China
URLhttp://pure.iiasa.ac.at/id/eprint/8794/
来源智库International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/128939
推荐引用方式
GB/T 7714		 Liu J. Consumptive water use in cropland and its partitioning: A high-resolution assessment.. 2009.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Liu J]的文章
百度学术
百度学术中相似的文章
[Liu J]的文章
必应学术
必应学术中相似的文章
[Liu J]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。