Assessment ecological risk of heavy metal caused by high-intensity land   reclamation in Bohai Bay, China

doi:10.1371/journal.pone.0175627

CORC > 北京大学 > 城市与环境学院

	Assessment ecological risk of heavy metal caused by high-intensity land reclamation in Bohai Bay, China
	Zhu, Gaoru ; Xie, Zhenglei ; Li, Tuoyu ; Ma, Zongwen ; Xu, Xuegong
刊名	PLOS ONE
	2017
关键词	YELLOW-RIVER DELTA COASTAL RECLAMATION FRESH-WATER WETLAND SOILS SEDIMENTS ESTUARY CONTAMINATION POLLUTION CHRONOSEQUENCE MANAGEMENT
DOI	10.1371/journal.pone.0175627
英文摘要	The article examines the detailed spatial and temporal distributions of coastal reclamation in the northwest coast of Bohai Bay experiencing rapid coastal reclamation in China from 1974 to 2010 in annual intervals. Moreover, soil elements properties and spatial distribution in reclaimed area and inform the future coastal ecosystems management was also analyzed. The results shows that 910.7 km(2) of coastal wetlands have been reclaimed and conversed to industrial land during the past 36 years. It covers intertidal beach, shallow sea and island with a percentage of 76.0%, 23.5% and 0.5%, respectively. The average concentration of Mn is 686.91mg/kg and the order of concentration of heavy metal are Cr > Zn > As > Ni >-Cu > Pb > Cd > Hg. We used the "space for time substitution" method to test the soil properties changes after reclamation. The potential ecological risk of heavy metal is in low level and the risk of Cd and As is relatively higher. The ecosystem-based coastal protection and management are urgent to support sustainable coastal ecosystems in Bohai bay in the future.; National Natural Science Foundation of China [41601105, 40830746, 41361018, 41271102, 41601191]; Collaborative Innovation Center for Major Ecological Security Issues of Jiangxi Province and Monitoring Implementation [JXS-EW-00]; SCI(E); ARTICLE; 4; 12
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473946]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Zhu, Gaoru,Xie, Zhenglei,Li, Tuoyu,et al. Assessment ecological risk of heavy metal caused by high-intensity land reclamation in Bohai Bay, China[J]. PLOS ONE,2017.
APA	Zhu, Gaoru,Xie, Zhenglei,Li, Tuoyu,Ma, Zongwen,&Xu, Xuegong.(2017).Assessment ecological risk of heavy metal caused by high-intensity land reclamation in Bohai Bay, China.PLOS ONE.
MLA	Zhu, Gaoru,et al."Assessment ecological risk of heavy metal caused by high-intensity land reclamation in Bohai Bay, China".PLOS ONE (2017).