干旱区生态环境知识资源中心(Arid): Assessment of Agricultural Water Productivity in Arid China

Arid

DOI	10.3390/w12041161
	Assessment of Agricultural Water Productivity in Arid China
	Yan, Nana; Wu, Bingfang; Zhu, Weiwei
通讯作者	Wu, BF
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:4
英文摘要	The water crisis has become increasingly serious, particularly in arid and semiarid areas. Agricultural water productivity (AWP) is an important indicator for evaluating water use efficiency and agricultural water management. This study uses water consumption derived from satellite data, combined with statistical survey information, to analyze the spatiotemporal variations and driving factors of AWP at the region and county scales over the past 15 years (2002-2015) in the Turpan region (China). The results showed the increasing change trends of AWP throughout Turpan and its three counties. A multiple regression analysis was applied to evaluate AWP, agricultural production and water consumption with driving factors. The contribution of agricultural factors (fertilizer amount, pesticide use and irrigation area) was 86.3% for change of production and 93.3% for change of water consumption in Turpan. The synchronous changes associated with the similar factor contributions resulted in a nonsignificant change in AWP for the whole region. However, the significant increase in AWP in Toksun County was caused by a weakened effect of synchronous changes due to the difference between the largest contributing factors (irrigation area for production at 29.3% and temperature for water consumption at 35.4%). The different change trends of the AWP at regional and county levels indicated that agricultural planting structure adjustment could be an effective way to improve water productivity. This paper provides objective and new information to understand the effects of AWP changes at regional and county scales, which is beneficial for irrigation agriculture development in Turpan.
英文关键词	Turpan region water productivity trend analysis driving factor
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000539527500238
WOS关键词	HEAT-FLUX ; MARKETS ; PARADOX
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324722
作者单位	[Yan, Nana; Wu, Bingfang; Zhu, Weiwei] Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing Sci, Beijing 100094, Peoples R China; [Wu, Bingfang] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yan, Nana,Wu, Bingfang,Zhu, Weiwei. Assessment of Agricultural Water Productivity in Arid China[J],2020,12(4).
APA	Yan, Nana,Wu, Bingfang,&Zhu, Weiwei.(2020).Assessment of Agricultural Water Productivity in Arid China.WATER,12(4).
MLA	Yan, Nana,et al."Assessment of Agricultural Water Productivity in Arid China".WATER 12.4(2020).