Decline in Chinese lake phosphorus concentration accompanied by shift in   sources since 2006

doi:10.1038/NGEO2967

CORC > 北京大学 > 城市与环境学院

	Decline in Chinese lake phosphorus concentration accompanied by shift in sources since 2006
	Tong, Yindong ; Zhang, Wei ; Wang, Xuejun ; Couture, Raoul-Marie ; Larssen, Thorjorn ; Zhao, Yue ; Li, Jing ; Liang, Huijiao ; Liu, Xueyan ; Bu, Xiaoge ; He, Wei ; Zhang, Qianggong ; Lin, Yan
刊名	NATURE GEOSCIENCE
	2017
关键词	CYCLE IMPACT ASSESSMENT FRESH-WATER EUTROPHICATION PHYTOPLANKTON ECOSYSTEMS EMISSIONS POLLUTION PARADIGM NITROGEN PLATEAU
DOI	10.1038/NGEO2967
英文摘要	Domestic wastewater and agricultural activities are important sources of nutrient pollutants such as phosphorus and nitrogen. Upon reaching freshwater, these nutrients can lead to extensive growth of harmful algae, which results in eutrophication. Many Chinese lakes are subject to such eutrophication, especially in highly polluted areas, and as such, understanding nutrient fluxes to these lakes offers insights into the varying processes governing pollutant fluxes as well as lake water quality. Here we analyse water quality data, recorded between 2006 and 2014 in 862 freshwater lakes in four geographical regions of China, to assess the input of phosphorus from human activity. We find that improvements in sanitation of both rural and urban domestic wastewater have resulted in large-scale declines in lake phosphorus concentrations in the most populated parts of China. In more sparsely populated regions, diffuse sources such as aquaculture and livestock farming offset this decline. Anthropogenic deforestation and soil erosion may also offset decreases in point sources of pollution. In the light of these regional differences, we suggest that a spatially flexible set of policies for water quality control would be beneficial for the future health of Chinese lakes.; SCI(E); ARTICLE; 7; 507-+; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/472454]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Tong, Yindong,Zhang, Wei,Wang, Xuejun,et al. Decline in Chinese lake phosphorus concentration accompanied by shift in sources since 2006[J]. NATURE GEOSCIENCE,2017.
APA	Tong, Yindong.,Zhang, Wei.,Wang, Xuejun.,Couture, Raoul-Marie.,Larssen, Thorjorn.,...&Lin, Yan.(2017).Decline in Chinese lake phosphorus concentration accompanied by shift in sources since 2006.NATURE GEOSCIENCE.
MLA	Tong, Yindong,et al."Decline in Chinese lake phosphorus concentration accompanied by shift in sources since 2006".NATURE GEOSCIENCE (2017).