Changes in water use efficiency and water footprint in grain production over the past 35 years: a case study in the North China Plain
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- 作者：Yang Lua ; b ; Xiying Zhanga ; xyzhang@sjziam.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Suying Chena ; Liwei Shaoa ; Hongyong Suna
- 关键词：Water footprint ; Water use efficiency ; Winter wheat ; Summer maize ; North China Plain
- 刊名：Journal of Cleaner Production
- 出版年：2016
- 出版时间：10 March 2016
- 年：2016
- 卷：116
- 期：Complete
- 页码：71-79
- 全文大小：912 K
文摘
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WUE and WF of winter wheat and maize in the North China Plain between 1980 and 2014 were quantified.
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WUE increased and WF decreased due to the increase in grain yield.
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The changing trend of WUE being greater than WF due to the considering the agricultural input in WF.
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The main components of WF for winter wheat and maize are blue and green water use.
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Compared with the WUE, the WF measure is a more comprehensive approach.