天津市城区不同功能区绿地土壤重金属分布特征及来源研究

doi:10.11720/wtyht.2021.0064

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Abstract

This study investigated the elements of As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn in greenbelt soil in five types of functional zones in the urban area of Tianjin City, namely residential and educational zones, traffic greenbelts, industrial zones, parks, and river banks. The results are as follows. The overall accumulationof heavy metals in the greenbelt soil is in the order Hg>Cd>Pb>Zn>Cu, with the average content of As, Cr, and niapproximating to the background values. Pb, Zn, Cu, and as have the highest content in the greenbelt soil in industrial zones, while Cd, Hg, Ni, and Cr have the highest content in river banks. Heavy metals mainly migrate intogreenbelt soil by means of atmospheric deposition.Moreover, the accumulation coefficient of heavy metals in greenbelt soil is significantly correlated with the ratio of the average content of heavy metals in atmospheric deposition and the background value of the heavy metals in the soil. Meanwhile, the difference in heavy metal content between the greenbelt soil in different functional zones are mainly caused bythe difference in the quantity of the heavy metals in the atmospheric deposition. Besides, the greenbelt soil on river banks is also affected by sewage irrigation and river sediments, and industrial and household waste may also cause local accumulation of heavy metals.

Key words： functional zone greenbelt soil heavy metal distribution characteristics source Tianjin City

Received: 03 February 2021 Published: 15 December 2021

ZTFLH:	P595
	X142

Corresponding Authors: YANG Yao-Dong E-mail: putaodaxian@qq.com;fivess@139.com

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	Jia-Yu HOU
	Yao-Dong YANG
	Xu-Jiang CHENG

Cite this article:

Jia-Yu HOU,Yao-Dong YANG,Xu-Jiang CHENG. Distribution and sources of heavy metals in greenbelt soil in different functional zones of Tianjin City[J]. Geophysical and Geochemical Exploration, 2021, 45(5): 1130-1134.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.0064 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I5/1130

Statistical parameters of heavy metals in greenbelt soil of Tianjin

Comparison of urbansoil heavy metal content in Tianjin and other cities

Statistical parameters of heavy metals in greenbelt soil in different functional areas

Statistical parameters of heavy metal concentration in atmospheric deposit

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