萍乡市土壤中重金属离子含量、空间分布及其变化趋势研究

Concentration,Spatial Distribution and Trend of Heavy Metal Pollution in the Soils of Pingxiang

以江西省萍乡地区土壤为研究对象,分析研究了萍乡市土壤中重金属离子的含量及空间分布特征,并初步估算了重金属离子累积现速率和加速度。结果表明:萍乡市土壤整体环境质量较好,但随着社会经济的快速发展,工农业生产等人为活动对土壤的影响越来越大。从空间分布来看,在全市5个县区布置的52个采样点中,共有24个测点的重金属离子含量超标。其中上栗县有10个测点的重金属离子含量超标,明显多于其他县区,出现了与其他县区不同的污染特征。

Based on the content and spatial distribution of heavy metal pollution in the soils of Pingxiang,this paper estimated heavy metal accumulation at the present and the acceleration rate of heavy metals were analyzed in the soil.The results indicated that soil environmental quality of Pingxiang is good,but with the rapid development of social economy,the activities of industrial and agricultural production is more and more big.The city of Pingxiang soil polluted situation is aggravated gradually.From the spatial distribution,24 measured points have exceeded the standard of heavy metal content in the 52 sampling points of Pingxiang.