四川盆地--成都平原建设用地重金属影响情况分析

Effects of Heavy Metals on Construction Land in Sichuan Basin and Cheng du Plain

随着国家大力发展川渝经济带,成都平原地区开始了迅猛的发展,成都平原土地也随之得到大力的开发和利用。经过20年的发展,成都平原上建设用地开发利用的面积约为20年前的3倍左右。该文选取成都平原沿龙门山、龙泉山和中轴平行带上部分建设用地,沿成都平原重要水系冲洪扇面以及沿途流经区域内部分建设用地,对空间内土壤表层或2 m以内层次土壤开展了重金属采样及检测工作,检测结果用于评价和分析空间内受建设用地影响的土壤重金属砷、铅、汞和镉含量变化情况。

With the country’s vigorous development of the Sichuan-Chongqing Economic Belt,the Chengdu Plain has begun to develop rapidly,and the land in the Chengdu Plain has also been vigorously developed and utilized.After 20 years of development,the development and utilization area of construction land on the Chengdu Plain is about 20 About 3 times as much as before a,this paper selects some construction land along the Longmen Mountain,Longquan Mountain and the central axis of the Chengdu Plain,along the important water system in the Chengdu Plain to flush the flood fan and some construction land in the area that flows along the way.Sampling and testing of heavy metals was carried out in soil layers within 2 m or less,and the testing results were used to evaluate and analyze changes in the content of heavy metals such as arsenic,lead,mercury and cadmium in soils affected by construction land.