Heavy metal concentrations in riparian soils along the Han River, China: The importance of soil properties, topography and upland land use

doi:10.1016/j.ecoleng.2016.10.060

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	Heavy metal concentrations in riparian soils along the Han River, China: The importance of soil properties, topography and upland land use
	Liu, Hui 1,2,3; Xiong, Ziqan 2; Jiang, Xiaoliang 2; Liu, Guihua 2; Liu, Wenzhi 2,4
刊名	ECOLOGICAL ENGINEERING
	2016-12-01
卷号	97 页码:545-552
关键词	Riparian zones Sedimentation Topographic factors Trace metals Yangtze river basin
ISSN号	0925-8574
DOI	10.1016/j.ecoleng.2016.10.060
英文摘要	Riparian zones can act as an important sink for various contaminants, including heavy metals. The retention and accumulation of heavy metals in riparian soils varies spatially and is related to many local factors, such as soil properties, topography and land use. However, the relative importance of such factors in determining the heavy metal contamination of riparian soils remains unclear. In this study, we investigated the concentrations of 10 heavy metals (i.e., Ba, Cd, Co, Cr, Cu, Mn, Ni, Pb, Sr and Zn) and their relationships to environmental features in 67 soil samples collected from 26 riparian sites along the Han River, China. Our results showed that there were significant and positive correlations among the concentrations of all heavy metals except for Ba, Mn and Sr. Heavy metal concentrations were, in general, positively associated with conductivity, fine substrate, carbon, nitrogen and phosphorus contents in soils but were negatively related to soil pH and density. Among the topographic conditions studied, elevation and distance from the river mouth were positively associated with the concentrations of Ba, Cd, Cr and Ni in riparian soils. Upland land use had a significant effect on the concentrations of Co, Cu and Zn. Generalized linear models revealed that soil properties, topography and land use together accounted for 11-69% of the variance in single metal concentrations, while redundancy analysis showed that such factors could explain 48% of the variance in overall metal levels. Our findings suggest that heavy metal concentrations in riparian soils are regulated not only by soil properties but also by physical characteristics such as topography and land use. (C) 2016 Elsevier B.V. All rights reserved.
资助项目	National Scientific-Basic Special Fund of China[2015FY110400] ; National Science Foundation of China[51379133]
WOS研究方向	Environmental Sciences & Ecology ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000388580200057
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/3581]
专题	中国科学院武汉植物园
通讯作者	Liu, Wenzhi
作者单位	1.Minist Water Resources, Inst Hydroecol, Key Lab Ecol Impacts Hydraul Projects & Restorat, Wuhan 430079, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Wuhan 430079, Peoples R China 4.Univ Wisconsin, Sch Freshwater Sci, Milwaukee, WI 53204 USA
推荐引用方式 GB/T 7714	Liu, Hui,Xiong, Ziqan,Jiang, Xiaoliang,et al. Heavy metal concentrations in riparian soils along the Han River, China: The importance of soil properties, topography and upland land use[J]. ECOLOGICAL ENGINEERING,2016,97:545-552.
APA	Liu, Hui,Xiong, Ziqan,Jiang, Xiaoliang,Liu, Guihua,&Liu, Wenzhi.(2016).Heavy metal concentrations in riparian soils along the Han River, China: The importance of soil properties, topography and upland land use.ECOLOGICAL ENGINEERING,97,545-552.
MLA	Liu, Hui,et al."Heavy metal concentrations in riparian soils along the Han River, China: The importance of soil properties, topography and upland land use".ECOLOGICAL ENGINEERING 97(2016):545-552.