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

	Impacts of climate change and agricultural activities on water quality in the Lower Kaidu River Basin, China
	Ba Wulong; Du Pengfei; Liu Tie; Bao Anming; Chen Xi; Liu Jiao; Qin Chengxin
来源期刊	Journal of Geographical Sciences
ISSN	1009-637X
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 3.8410~8 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 4.4110~8 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
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:6650519
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336240
作者单位	Ba Wulong, School of Environment, Tsinghua University;;Xinjiang Institute of Ecology and Geography, CAS, State Key Laboratory of Environmental Simulation and Pollution Control;;State Key Laboratory of Desert and Oasis Ecology, ;;Urumqi, Beijing;; 100084;;830011.; Du Pengfei, School of Environment, Tsinghua University, State Key Laboratory of Environmental Simulation and Pollution Control, Beijing 100084, China.; Qin Chengxin, School of Environment, Tsinghua University, State Key Laboratory of Environmental Simulation and Pollution Control, Beijing 100084, China.; Liu Tie, Xinjiang Institute of Ecology and Geography, CAS, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Bao Anming, Xinjiang Institute of Ecology and Geography, CAS, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Chen Xi, Xinjiang Institute of Ecology and Geography, CAS, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Liu Jiao, School of E...
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],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.