广东省南海市农业土壤中铜锌镍的环境容量

The Environmental Capacity of Copper, Zinc, Nickel in Agricultural soil in Nanhai, Guangdong.

南海市是我国经济最发达的县级市之一，工业门类多，布局分散，工业“三废”对土壤环境产生一定影响。研究结果表明，土壤中铜、锌、镍的容量分别为１８５ ．５８ ｋｇ／ｈ ｍ ２ 、２９２ ．８８ ｋｇ／ｈ ｍ ２ 、６３ ．９２ ｋｇ／ｈ ｍ ２ 。丘陵地区容最较大，其次是基塘区，平原地区较小。重金属污染型企业分布密集的地区环境容量较小。土壤环境容量与元素含量和最大允许含量有关。

Nanhai is one of the most richest counties in China. There are many types of industry, and they distribute here and there. It shows that the Cu, Zn, Ni capacity of soil is 185.58 kg/hm 2, 292.88 kg/hm 2 repectively. The capacity of hill areas is larger than that of pond areas, and the capacity of plain is smaller than that of the two areas above. The capacity of the area where there are more heavy mental pollutive enterprise is smaller than that of other areas. Soil environmental capacity is mainly affected by the content of Cu, Zn, Ni in soil and by the acceptable content.