期刊
JOURNAL OF ENVIRONMENTAL SCIENCES
卷 64, 期 -, 页码 328-334出版社
SCIENCE PRESS
DOI: 10.1016/j.jes.2016.11.026
关键词
Urban soils; Human disturbance; Zn; Impervious land; Population density
资金
- National Natural Science Foundation of China [41271503]
- Special Foundation of State Key Lab of Urban and Regional Ecology [SKLURE2013-1-4]
Urbanization processes affect the accumulation of heavy metals in urban soils. Effects of urbanization on heavy metal accumulation in soils were studied using Beijing as an example. It has been suggested that the ecological function of vegetation covers shifting from natural to agricultural settings and then to urban greenbelts could increase the zinc (Zn) concentrations of soils successively. The Zn concentration of urban soils was significantly correlated to the percentage of the impervious land surface at the 500 m x 500 m spatial scale. For urban parks, the age or years since the development accounted for 80% of the variances of cadmium (Cd) and Zn in soils. The population density, however, did not affect the heavy metal distributions in urban soils. To conclude, the urban age turned out to be a notable factor in quantifying heavy metal accumulation in urban soils. (c) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据