干旱区生态环境知识资源中心(Arid): Impacts of climate change and agricultural activities on water quality in the Lower Kaidu River Basin, China

Arid

DOI	10.1007/s11442-020-1721-z
	Impacts of climate change and agricultural activities on water quality in the Lower Kaidu River Basin, China
	Ba, Wulong 1,2; Du, Pengfei 1; Liu, Tie 2; Bao, Anming2 ; Chen, Xi2 ; Liu, Jiao 3; Qin, Chengxin 1
通讯作者	Du, Pengfei
来源期刊	JOURNAL OF GEOGRAPHICAL SCIENCES
ISSN	1009-637X
EISSN	1861-9568
出版年	2020
卷号	30 期号:1 页码:164-176
英文摘要	In the context of climate change and over-exploitation of water resources, water shortage and water pollution in arid regions have become major constraints to local sustainable development. In this study, we established a Soil and Water Assessment Tool (SWAT) model for simulating non-point source (NPS) pollution in the irrigation area of the lower reaches of the Kaidu River Basin, based on spatial and attribute data (2010-2014). Four climate change scenarios (2040-2044) and two agricultural management scenarios were input into the SWAT model to quantify the effects of climate change and agricultural management on solvents and solutes of pollutants in the study area. The simulation results show that compared to the reference period (2010-2014), with a decline in streamflow from the Kaidu River, the average annual irrigation water consumption is expected to decrease by 3.84x10(8) m(3) or 8.87% during the period of 2040-2044. Meanwhile, the average annual total nitrogen (TN) and total phosphorus (TP) in agricultural drainage canals will also increase by 10.50% and 30.06%, respectively. Through the implementation of agricultural management measures, the TN and TP in farmland drainage can be reduced by 14.49% and 16.03%, respectively, reaching 661.56 t and 12.99 t, accordingly, and the increasing water efficiency can save irrigation water consumption by 4.41 x10(8) m(3) or 4.77%. The results indicate that although the water environment in the irrigation area in the lower reaches of the Kaidu River Basin is deteriorating, the situation can be improved by implementing appropriate agricultural production methods. The quantitative analysis results of NPS pollutants in the irrigation area under different scenarios provide a scientific basis for water environmental management in the Kaidu River Basin.
英文关键词	climate change agricultural management non-point pollutants SWAT Kaidu River Basin water quality
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000520220600011
WOS关键词	BOSTEN LAKE ; MANAGEMENT-PRACTICES ; DOWNSCALING METHODS ; MODEL ; SWAT ; CALIBRATION ; SEDIMENT ; XINJIANG ; REGION
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	中国科学院新疆生态与地理研究所 ; 清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314966
作者单位	1.Tsinghua Univ, Sch Environm, State Key Lab Environm Simulat & Pollut Control, Beijing 100084, Peoples R China; 2.Chinese Acad Sci, State Key Lab Desert & Oasis Ecol, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China; 3.Xihua Univ, Sch Energy & Power Engn, Chengdu 610039, Peoples R China
推荐引用方式 GB/T 7714	Ba, Wulong,Du, Pengfei,Liu, Tie,et al. Impacts of climate change and agricultural activities on water quality in the Lower Kaidu River Basin, China[J]. 中国科学院新疆生态与地理研究所, 清华大学,2020,30(1):164-176.
APA	Ba, Wulong.,Du, Pengfei.,Liu, Tie.,Bao, Anming.,Chen, Xi.,...&Qin, Chengxin.(2020).Impacts of climate change and agricultural activities on water quality in the Lower Kaidu River Basin, China.JOURNAL OF GEOGRAPHICAL SCIENCES,30(1),164-176.
MLA	Ba, Wulong,et al."Impacts of climate change and agricultural activities on water quality in the Lower Kaidu River Basin, China".JOURNAL OF GEOGRAPHICAL SCIENCES 30.1(2020):164-176.