Modelling spatial variation in the treatment costs of non-point source pollution in mountainous regions of southwest China

doi:10.1007/s11629-018-5051-x

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2019 > Vol16 No.8

	Modelling spatial variation in the treatment costs of non-point source pollution in mountainous regions of southwest China
	Liu Ju; Fu Bin; Zhang Cheng-hu; Wang Yu-kuan
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2019
卷号	16 期号:8 页码:1901-1912
关键词	Nonpoint source pollution Water treatment cost Water purification model InVEST Tool Export coefficient Spatial variation
ISSN号	1672-6316
DOI	10.1007/s11629-018-5051-x
文献子类	Article
英文摘要	Non-point source (NPS) pollution is considered to be one of the main threats of the aquatic environment. Mountainous regions are particularly important water sources for urban areas. The various driving factors of NPS pollution such as terrain, precipitation, and vegetation type in mountainous regions show clear spatial heterogeneity. Consequently, the management systems required for NPS pollution in mountainous regions are complex. In this study, we developed a framework to estimate and map the treatment costs for NPS pollution in mountainous regions and applied this method in Baoxing County, a typical mountainous county in Sichuan Province of southwest China. The export levels of total nitrogen (TN) and total phosphorus (TP) in Baoxing County were estimated using the water purification model in InVEST (Itegrated Valuation of Ecosystem Services and Tradeoffs) tool. NPS pollutant treatment costs were calculated based on the level of pollutants exports, water yield, water quality targets, and treatment costs of NPS pollutants per unit mass. The results show that at the watershed level the amounts of TN and TP exported in Baoxing County were below threshold limits. However, at the sub-watershed level, TN and TP excesses of 291.64 and 2.96 tons per year were found, respectively, with mean TN and TP treatment costs of 6.58 US$/hm(2) and 0.35 US$/hm(2). Appraising pollution treatment cost intuitively reflects the overall expenditure in NPS pollution reduction from an economic perspective. This study provides a foundation for the implementation of Payment for Ecosystem Service (PES) and the prevention and control of NPS pollution.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000478892900012
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46558]
专题	Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.8
推荐引用方式 GB/T 7714	Liu Ju,Fu Bin,Zhang Cheng-hu,et al. Modelling spatial variation in the treatment costs of non-point source pollution in mountainous regions of southwest China[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(8):1901-1912.
APA	Liu Ju,Fu Bin,Zhang Cheng-hu,&Wang Yu-kuan.(2019).Modelling spatial variation in the treatment costs of non-point source pollution in mountainous regions of southwest China.JOURNAL OF MOUNTAIN SCIENCE,16(8),1901-1912.
MLA	Liu Ju,et al."Modelling spatial variation in the treatment costs of non-point source pollution in mountainous regions of southwest China".JOURNAL OF MOUNTAIN SCIENCE 16.8(2019):1901-1912.