Recent water quality trends in a typical semi-arid river with a sharp decrease in streamflow and construction of sewage treatment plants

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Recent water quality trends in a typical semi-arid river with a sharp decrease in streamflow and construction of sewage treatment plants
	Cheng, Peng; Li, Xuyong; Su, Jingjun; Hao, Shaonan
刊名	ENVIRONMENTAL RESEARCH LETTERS
	2018
卷号	13 期号:1 页码:-
关键词	streamflow seasonal trend decomposition sewage treatment plants trend analysis water quality
ISSN号	1748-9326
文献子类	Article
英文摘要	Identification of the interactive responses of water quantity and quality to changes in nature and human stressors is important for the effective management of water resources. Many studies have been conducted to determine the influence of these stressors on river discharge and water quality. However, there is little information about whether sewage treatment plants can improve water quality in a region where river streamflow has decreased sharply. In this study, a seasonal trend decomposition method was used to analyze long-term (1996-2015) and seasonal trends in the streamflow and water quality of the Guanting Reservoir Basin, which is located in a semi-arid region of China. The results showed that the streamflow in the Guanting Reservoir Basin decreased sharply from 1996-2000 due to precipitation change and human activities (human use and reservoir regulation), while the streamflow decline over the longer period of time (1996-2015) could be attributed to human activities. During the same time, the river water quality improved significantly, having a positive relationship with the capacity of wastewater treatment facilities. The water quality in the Guanting Reservoir showed a deferred response to the reduced external loading, due to internal loading from sediments. These results implied that for rivers in which streamflow has declined sharply, the water quality could be improved significantly by actions to control water pollution control. This study not only provides useful information for water resource management in the Guanting Reservoir Basin, but also supports the implementation of water pollution control measures in other rivers with a sharp decline in streamflow.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40639]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Cheng, Peng,Li, Xuyong,Su, Jingjun,et al. Recent water quality trends in a typical semi-arid river with a sharp decrease in streamflow and construction of sewage treatment plants[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(1):-.
APA	Cheng, Peng,Li, Xuyong,Su, Jingjun,&Hao, Shaonan.(2018).Recent water quality trends in a typical semi-arid river with a sharp decrease in streamflow and construction of sewage treatment plants.ENVIRONMENTAL RESEARCH LETTERS,13(1),-.
MLA	Cheng, Peng,et al."Recent water quality trends in a typical semi-arid river with a sharp decrease in streamflow and construction of sewage treatment plants".ENVIRONMENTAL RESEARCH LETTERS 13.1(2018):-.