Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR023573 |
Recent Global Cropland Water Consumption Constrained by Observations | |
Chen, Yongzhe1,2; Feng, Xiaoming1; Fu, Bojie1; Shi, Weiyue3; Yin, Lichang1,4; Lv, Yihe1 | |
2019-05-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:5页码:3708-3738 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Under current global warming and accelerated population growth scenarios, cropland irrigation water consumption has become a central issue limiting the sustainability of coupled human-natural systems. This study proposes a new estimate of recent global cropland water consumption constrained by observations and provides attributions for its recent trend. By incorporating observations, including extracted cropland leaf area index and irrigation threshold data, this study provides improved estimates of recent global cropland evapotranspiration and transpiration as well as irrigation water consumption and withdrawal. The global annual consumption and withdrawal of irrigation water are estimated to be approximately 874 and 1,867 km(3) (in 2005), respectively. From 2000 to 2014, a rapid increase in cropland irrigation was detected, especially in water-deficient areas (i.e., hyperarid, arid, and semiarid regions). Climate change, which mainly consists of rising temperature and reduced moisture conditions, is usually distinguished as the major driving factor. Human-induced increases in crop canopy cover have also contributed to more irrigation in hyperarid and arid regions. This study also provides suggestions for water-savings-targeted cropland management in water-deficient areas based on the transpiration ratio (i.e., ratio of transpiration to evapotranspiration). |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000474848500007 |
WOS关键词 | SIMULATE YIELD RESPONSE ; EDDY-COVARIANCE ; LAND-USE ; CLIMATE EXPERIMENT ; GRAVITY RECOVERY ; CARBON EXCHANGE ; USE EFFICIENCY ; DATA SET ; MODEL ; EVAPORATION |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/183115 |
专题 | 资源环境科学 |
作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China; 3.China Univ Geosci, Sch Informat Engn, Beijing, Peoples R China; 4.Changan Univ, Sch Earth Sci & Resources, Xian, Shaanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Yongzhe,Feng, Xiaoming,Fu, Bojie,et al. Recent Global Cropland Water Consumption Constrained by Observations[J]. WATER RESOURCES RESEARCH,2019,55(5):3708-3738. |
APA | Chen, Yongzhe,Feng, Xiaoming,Fu, Bojie,Shi, Weiyue,Yin, Lichang,&Lv, Yihe.(2019).Recent Global Cropland Water Consumption Constrained by Observations.WATER RESOURCES RESEARCH,55(5),3708-3738. |
MLA | Chen, Yongzhe,et al."Recent Global Cropland Water Consumption Constrained by Observations".WATER RESOURCES RESEARCH 55.5(2019):3708-3738. |
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