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Evaluation and Source Analysis of Heavy Metal Pollution in Soil of Acidic Red Soil Tea-Producing Area(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2025年01期
Page:
38-44
Research Field:
环境科学与工程
Publishing date:

Info

Title:
Evaluation and Source Analysis of Heavy Metal Pollution in Soil of Acidic Red Soil Tea-Producing Area
Author(s):
Tan Huarong1; Wang Yusi1; Shi Kaipian2; Dong Ting1; Yao Youru1; 3
(1.School of Geography and Tourism,Anhui Normal University,Wuhu 241003,China)
(2.School of Environment,Nanjing Normal University,Nanjing 210023,China)
(3.Key Laboratory of Earth Surface Processes and Response in the Yangtze-Huaihe River Basin of Anhui Province,Wuhu 241003,China)
Keywords:
heavy metal; tea plantation soil; pollution assessment; source analysis; Anxi
PACS:
X53
DOI:
10.3969/j.issn.1672-1292.2025.01.005
Abstract:
Heavy metal pollution in tea garden soil directly impacts the quality of tea leaves in tea-producing regions,consequently influencing human health. In this paper,the surface soil of a tea-producing area in Anxi County,Quanzhou City,Fujian Province,is the focus of the research. The distribution characteristics of Pb,Zn,Cu,Cr,Ni,Co,Mn and Fe in tea garden soil are comprehensively analyzed through indoor experiments. The study also utilizes the probability matrix decomposition(PMF)model to explore the sources of pollutants. The results indicate that the mean contents of Pb,Zn,Co,and Mn in the red soil in the study area exceed 1.38,1.25,1.50,and 1.86 times the background value of the soil in Fujian Province,respectively,indicating significant accumulation. The level of heavy metal pollution in the soil in the study area is relatively low. Apart from moderate pollution of Pb,Zn,and Mn at a few sample points,the other heavy metals are mostly categorized as non-polluted or lightly polluted. PMF modeling reveals that the heavy metals in the red soil of the tea plantation originated from four pollution sources:transportation,mining,natural factors,and agriculture,contributing 21.89%,25.82%,27.76%,and 24.52%,respectively.

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Last Update: 2025-03-15