河南省主要土类土壤耕层铅含量抽样调查

Sampling Investigation on the Lead Contents in Plough Layer of Henan Main-type Soils

对河南省主要土类土壤耕层铅含量进行了抽样调查,60个随机抽样点的检测结果表明,潮土、褐土、砂姜黑土、黄褐土、黄棕壤铅含量高低不一,铅含量平均值大小顺序为:砂姜黑土>褐土>黄褐土>潮土>黄棕壤,但均未超过国家《土壤环境质量标准》(GB15618-1995)中的铅污染指标。

60 random samples from plough layers of main type soils in Henan were investigated. The results showed that the main soils in Henan were damp soil, cinnamon soil, lime concretion soil, yellow cinnamon soil and yellow brown soil, with different lead content. The order of mean lead contents were lime concretion soil〉cinnamon soil〉yellow cinnamon soil〉damp soil〉yellow brown soil, but all the soils did not exceed the standard of lead contents stipulated in The Standard of Soil Environment Quality（GB15618--1995）.