气候变化领域集成服务门户(CCPortal): Irrigation water consumption of irrigated cropland and its dominant factor in China from 1982 to 2015

CCPortal

DOI	10.1016/j.advwatres.2020.103661
	Irrigation water consumption of irrigated cropland and its dominant factor in China from 1982 to 2015
	Yin L.; Feng X.; Fu B.; Chen Y.; Wang X.; Tao F.
发表日期	2020
ISSN	0309-1708
卷号	143
英文摘要	Quantifying and mapping regional and global irrigation water consumption have attracted considerable attention from researchers. The existing models cannot accurately estimate the long-term sequence of irrigation water consumption at the regional scale. Despite being among the countries with the largest irrigated areas, China has not been specifically evaluated in terms of high-resolution long-term irrigation water consumption. In this paper, an irrigated cropland water model incorporating irrigated cropland mapping, the soil water balance equation, irrigated crop phenology, and partitioning evapotranspiration products was developed to fill the knowledge gap. We found that (1) the mean annual total irrigation water consumption of irrigated cropland in China during 1982–2015 was approximately 179.43 ± 24.60 km3. (2) The continued expansion of irrigated farmland dominated (67.2% ± 5.6%) the significant increase in annual total irrigation water consumption (slope=2.03 km3 yr−1, p<0.01), followed by changes in crop management practices (16.7% ± 6.1%), and the impacts of interannual climatic variability (represented by precipitation and potential evapotranspiration in this research) were weak. (3) The annual total irrigation water consumption in the arid zone increased quicker than that in wet regions. © 2020 Elsevier Ltd
关键词	Arid regions Crops Evapotranspiration Irrigation Mapping Soil moisture Climatic variability Crop management practices Irrigated cropland Irrigated crops Irrigation waters Long-term irrigations Potential evapotranspiration Soil water balance Water supply agricultural land agricultural management hydrological modeling irrigation soil water water budget water use China
语种	英语
来源机构	Advances in Water Resources
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/131752
推荐引用方式 GB/T 7714	Yin L.,Feng X.,Fu B.,et al. Irrigation water consumption of irrigated cropland and its dominant factor in China from 1982 to 2015[J]. Advances in Water Resources,2020,143.
APA	Yin L.,Feng X.,Fu B.,Chen Y.,Wang X.,&Tao F..(2020).Irrigation water consumption of irrigated cropland and its dominant factor in China from 1982 to 2015.,143.
MLA	Yin L.,et al."Irrigation water consumption of irrigated cropland and its dominant factor in China from 1982 to 2015".143(2020).