干旱区生态环境知识资源中心(Arid): Degradation of agricultural drainage water quantity and quality due to farmland expansion and water-saving operations in arid basins

Arid

DOI	10.1016/j.agwat.2018.10.019
	Degradation of agricultural drainage water quantity and quality due to farmland expansion and water-saving operations in arid basins
	Hu, Qiuli 1,2; Yang, Yonghui 1; Han, Shumin 1; Wang, Jiusheng 3
通讯作者	Yang, Yonghui
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2019
卷号	213 页码:185-192
英文摘要	Understanding the impacts of agricultural activities on drainage is increasingly important element of water resources management in arid regions. This study analyzed the effects of recent changes in agricultural activities on drainage water quantity and quality from farmlands in Aksu River Basin in Northwest China. Based on drainage water analysis for 2003-2010, implementation water-saving measures resulted in the reduction of irrigation quota by up to 48%. This in turn resulted in a decline in drainage water by up to 44% in 2010, compared with that in 2004. Na-Cl was the main drainage water type, driven by the dissolution of soluble salts and cation exchange. Analysis further showed that while TDS (total dissolved solids) in drainage water increased to 4.7-10.8 g/L (an average of 7.6 g/L) in period 2005-2010, that in 2003-2004 was 28% lower. In contrast to irrigation water, TDS in drainage was 6-18 times higher than that in irrigation water. Yet further analysis showed that while the increase in TDS in drainage water was mainly driven by farmland expansion, drainage water was as well affected by groundwater exploitation. It was therefore recommended to restrict farmland expansion and to intensify water-saving operations in order to prevent destructive declines in water flow to downstream ecosystems.
英文关键词	Farmland drainage Irrigation water Agricultural water-saving Groundwater Tarim River Basin Total dissolved solids
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000457952700018
WOS关键词	TARIM RIVER-BASIN ; RESOURCE DEVELOPMENT ; IRRIGATION AREAS ; SURFACE RUNOFF ; SALINITY ; AKSU ; MANAGEMENT ; EFFICIENCY ; LAND ; ENVIRONMENT
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/2XILL650/213992
作者单位	1.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Key Lab Agr Water Resources, 286 Huaizhong Rd, Shijiazhuang 050021, Hebei, Peoples R China; 2.Ludong Univ, Coll Resources & Environm Engn, Yantai 264025, Peoples R China; 3.Xinjiang Prod & Construct Corps, Div Agr 1, Irrigat Expt Stn, Alaer 843300, Peoples R China
推荐引用方式 GB/T 7714	Hu, Qiuli,Yang, Yonghui,Han, Shumin,et al. Degradation of agricultural drainage water quantity and quality due to farmland expansion and water-saving operations in arid basins[J],2019,213:185-192.
APA	Hu, Qiuli,Yang, Yonghui,Han, Shumin,&Wang, Jiusheng.(2019).Degradation of agricultural drainage water quantity and quality due to farmland expansion and water-saving operations in arid basins.AGRICULTURAL WATER MANAGEMENT,213,185-192.
MLA	Hu, Qiuli,et al."Degradation of agricultural drainage water quantity and quality due to farmland expansion and water-saving operations in arid basins".AGRICULTURAL WATER MANAGEMENT 213(2019):185-192.