郑州市周边小麦农田土壤中重金属分布特征与污染状况研究

张珂; 厉萌萌; 刘德权; 张寅栋; 史家庆; 杨进川; 马闯

doi:10.12187/2020.02.007

April 2020

Article Contents

ZHANG Ke, LI Mengmeng, LIU Dequan, et al. Distribution pattern and pollution status of heavy metals in wheat farmland soil around Zhengzhou city[J]. Journal of Light Industry, 2020, 35(2): 50-58. doi: 10.12187/2020.02.007

Citation: ZHANG Ke, LI Mengmeng, LIU Dequan, et al. Distribution pattern and pollution status of heavy metals in wheat farmland soil around Zhengzhou city[J]. Journal of Light Industry, 2020, 35(2): 50-58. doi: 10.12187/2020.02.007 shu

Distribution pattern and pollution status of heavy metals in wheat farmland soil around Zhengzhou city

ZHANG Ke ^1,2,3 ,
LI Mengmeng ¹ ,
LIU Dequan ¹ ,
ZHANG Yindong ¹ ,
SHI Jiaqing ¹ ,
YANG Jinchuan ¹ ,
MA Chuang ^1,2,3

1. School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China;
2. Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Zhengzhou 450001, China;
3. He'nan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou 450001, China

Received Date: 2019-09-09

Abstract

A total of 105 soil samples was collected from 21 villages/towns wheat farmland in 6 regions around Zhengzhou in June 2018, and the contents of heavy metals Pb, Cd, Cu and Zn in the soil samples were determined.Their distribution pattern and pollution status were analyzed.The results showed that the average values of Pb, Cu and Zn in the wheat farmland soil around Zhengzhou city were 12.22 mg·kg^-1, 11.20 mg·kg^-1 and 53.57 mg·kg^-1 respectively, all lower than the soil environment quality standard and He'nan fluvo-aquic soil background value;with the increase of soil depth, the contents of these three kinds of heavy metals gradually decreased, and the content of Cd was not reduced;the contents of heavy metals in the wheat farmland soil in different regions was significantly different;among them, the contents of Pb, Cu and Zn in the wheat farmland soil in Gongyi city were relatively high;in the wheat farmland soil, the Pb content in 7 villages/towns and the Zn content in 5 towns exceeded He'nan fluvo-aquic soil background value;and the Cu content and Cd content in 21 villages/towns were lower than the He'nan fluvo-aquic soil background value;Cu and Pb might have homology, and Cu and Zn might be affected by multiple different pollution sources.The soil quality of wheat farmland around Zhengzhou was generally good, but the farmland soil with heavy metal content exceeding He'nan fluvo-aquic soil background value still needs to be monitored.Measures such as strengthening the publicization of agricultural knowledge such as land cultivation and using organic fertilizers instead of chemical fertilizers can improve the basic physical and chemical properties of the soil nature.
- wheat farmland soil,
- heavy metal pollution,
- distribution pattern
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Distribution pattern and pollution status of heavy metals in wheat farmland soil around Zhengzhou city

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