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The effect of development in water-saving irrigation techniques on spatial-temporal variations in crop water footprint and benchmarking

文献类型：期刊论文

作者Wang, Wei1; Zhuo, La2,3,4; Li, Meng1,3; Liu, Yili1,3; Wu, Pute2,4
刊名JOURNAL OF HYDROLOGY
出版日期2019-10-01
卷号577页码:13
关键词Irrigation techniques Water footprint accounting Water footprint benchmark Spatial-temporal variations
ISSN号0022-1694
DOI10.1016/j.jhydrol.2019.123916
通讯作者Zhuo, La(zhuola@nwafu.edu.cn)
英文摘要Improved spatial and temporal resolutions in quantification enable the water footprint (WF) in crop production to be a comprehensive indicator of water consumption in agricultural water management. In general, existing literature focus on the impact of water-saving irrigation techniques on crop yield and water consumption during the growth period at sites or experimental units, few studies yet that explicitly addresses the effect of developments in water-saving irrigation techniques on large-scale WF accounting and benchmarking. Here, we fill this gap through a case study for wheat in China over 2000-2014, during which the micro-irrigated wheat area expanded 14 times. The green and blue WFs of China's wheat per year are estimated at a 5 arc-minute resolution. For irrigated wheat, we distinguish three irrigation techniques: furrow, sprinkler and micro-irrigation. The WF benchmarks by irrigation type are further estimated separately for arid and humid zones. Irrigation accounted for 70% of annual WF in China's wheat land, while furrow irrigation dominated the national total WF. The occupation by WF under micro-irrigation was the smallest but jumped by 14 times in quantity whereas that under sprinkler halved. China's average WF per ton of wheat under sprinkler irrigation was 21% higher than that under micro-irrigation in 2014. The 20th percentile WF benchmarks of wheat under micro-irrigation was 13% and 31% smaller than that under furrow and sprinkler irrigation, respectively, in arid zones. Meanwhile, high provincial heterogeneities in terms of WF under varied distribution of irrigation techniques were also shown. The study shows possibility and importance to account for developments of water-saving techniques in large-scale crop WF estimations.
WOS关键词SIMULATE YIELD RESPONSE ; HIGH-RESOLUTION ; WINTER-WHEAT ; BLUE ; PRODUCTIVITY ; GREEN ; CHINA ; MODEL ; TRADE ; CONSUMPTION
资助项目National Key Research and Development Plan[2018YFF0215702] ; National Natural Science Foundation of China[51809215] ; Shaanxi Natural Science Foundation[2018JQ4020] ; West Light Talent Program of the Chinese Academy of Sciences ; Technology Foundation for Selected Overseas Chinese Scholars in Shaanxi province[2017034] ; Fundamental Research Funds for the Central Universities[2452017181]
WOS研究方向Engineering ; Geology ; Water Resources
语种英语
WOS记录号WOS:000488304300004
出版者ELSEVIER
资助机构National Key Research and Development Plan ; National Natural Science Foundation of China ; Shaanxi Natural Science Foundation ; West Light Talent Program of the Chinese Academy of Sciences ; Technology Foundation for Selected Overseas Chinese Scholars in Shaanxi province ; Fundamental Research Funds for the Central Universities
源URL[http://ir.igsnrr.ac.cn/handle/311030/129640]  
专题中国科学院地理科学与资源研究所
通讯作者Zhuo, La
作者单位1.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.Northwest A&F Univ, Inst Water Saving Agr Arid Reg China, Yangling 712100, Shaanxi, Peoples R China
4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Wei,Zhuo, La,Li, Meng,et al. The effect of development in water-saving irrigation techniques on spatial-temporal variations in crop water footprint and benchmarking[J]. JOURNAL OF HYDROLOGY,2019,577:13.
APA Wang, Wei,Zhuo, La,Li, Meng,Liu, Yili,&Wu, Pute.(2019).The effect of development in water-saving irrigation techniques on spatial-temporal variations in crop water footprint and benchmarking.JOURNAL OF HYDROLOGY,577,13.
MLA Wang, Wei,et al."The effect of development in water-saving irrigation techniques on spatial-temporal variations in crop water footprint and benchmarking".JOURNAL OF HYDROLOGY 577(2019):13.

入库方式： OAI收割

来源：地理科学与资源研究所

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