自然和人为因素对土壤重金属污染分布的影响研究

Effects of Natural and Human Factors on the Distribution of Heavy Metal Pollution in Soil

随着社会经济的快速发展,人类活动对土地资源的需求日益增加。重金属污染成为土壤污染中最严重的问题。本文总结了自然因素和人为因素造成的土壤重金属污染。自然因素包括高背景值、岩土风化与地表径流作用,人为因素包括采矿、矿业废弃地、肥料及农药施用与污水灌溉作用。通过对土壤中重金属进行源分析,本文旨在为重金属污染土壤的防治技术提供理论支持和科学依据。

With the rapid development of social economy, the demand for land resources from human activi-ties was increasing. Heavy metal pollution had become the most serious problem in soil pollution. This paper summarized the heavy metal pollution of soil caused by natural and human factors. Natural factors included high background value, rock and soil weathering and surface runoff, and human factors included mining, mining waste land, fertilizer and pesticide application and sewage irrigation. Through the source analysis of heavy metals in soil, this paper aimed to provide theo-retical support and scientific basis for the prevention and control technology of heavy metal con-taminated soil.