干旱区生态环境知识资源中心(Arid): Evolution of agricultural development and land-water-food nexus in Central Asia

Arid

DOI	10.1016/j.agwat.2022.107874
	Evolution of agricultural development and land-water-food nexus in Central Asia
	Han, Shumin; Xin, Ping; Li, Huilong; Yang, Yonghui
通讯作者	Yang, YH
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2022
卷号	273
英文摘要	Agricultural water use in heavily irrigated regions can reduce surface water flow. The most remarkable hydro-logical change in recent times in Central Asia is the rapid dry-up of the Aral Sea. In this paper, the evolution of agricultural development was traced back to the 1910s, Land-Water-Food (LWF) nexus in Central Asia was evaluated, and the relationship between agricultural development and Aral Sea dry-up was built. It was noted that for the 1910-2010s, the harvested land area in the region expanded nearly two folds - from 7.2 to 21.6 million ha. Production of cereal crops increased over eight folds - from 4.0 to 37.6 million tonnes. Cotton production reached 5.5 million tonnes, a seven-fold increase. The high increase in productivity was driven by increasing agricultural irrigation since the 1950s. Irrigation water requirement for the five main crops (wheat, cotton, maize, barley and rice) increased by about 50%; from 64.3 km(3) in the 1950s to 95.9 km3 in the 2010s. Cotton and wheat were the top two crops, with respective total irrigation water use of 66.9% and 16.4%. For the study area, LWF nexus was quantified in terms of production efficiency using the data envelopment analysis method, and it was shown that excess water and land resources made agricultural production inefficient. Analysis of the irrigated area and the Aral Sea water surface area suggested that for every 1.0 km2 increase in irrigated land area, water surface area in the Aral Sea declined by 1.2 km2. The analysis of LWF tradeoff was key not only for sustainable land, water and ecological management, but also for food production in degraded arid lands around the globe.
英文关键词	Land-Water-Food nexus Crop water requirement Sankey diagram Data envelopment analysis Production efficiency Aral Sea
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000856028700003
WOS关键词	ARAL SEA ; FERGANA VALLEY ; AMU DARYA ; IRRIGATION ; COTTON ; MANAGEMENT ; EFFICIENCY ; RESOURCES ; PRODUCTIVITY ; DESICCATION
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391646
推荐引用方式 GB/T 7714	Han, Shumin,Xin, Ping,Li, Huilong,et al. Evolution of agricultural development and land-water-food nexus in Central Asia[J],2022,273.
APA	Han, Shumin,Xin, Ping,Li, Huilong,&Yang, Yonghui.(2022).Evolution of agricultural development and land-water-food nexus in Central Asia.AGRICULTURAL WATER MANAGEMENT,273.
MLA	Han, Shumin,et al."Evolution of agricultural development and land-water-food nexus in Central Asia".AGRICULTURAL WATER MANAGEMENT 273(2022).