摘要
为了解贵阳市无公害蔬菜产地的土壤重金属污染状况,促进当地自然和生态坏境合理保护和利用,对贵阳市云岩区、乌当区、白云区、开阳县和息烽县主要蔬菜基地土壤样重金属含量进行调查、取样、分析。结果表明:472个代表样品中各测定项目的范围和平均值分别为:汞0.02～1.23 mg/kg和0.17 mg/kg、砷0.007～53.96 mg/kg和17.84 mg/kg、镉0.01～1.14 mg/kg和0.16 mg/kg、铅0.10～153.88 mg/kg和33.06 mg/kg、铬0.30～194.23 mg/kg和101.49mg/kg。
It is surveyed, sampled, analised that heavy metal content in vegetable base soil of Yunyan District, Wudang District, Baiyun Dis- trict, Kaiyang and in Xifeng County of Guiyang City so as to explore Guiyang vegetable base of soil heavy metals and pollutionconditions, to provide a basis for the development of pollution-free vegetable production. The analysis showed that of the 472 representative samples, the mercury content of 0.02 to 1.23 （0.17） mg. kg-arsenic content of 0.007 to 53.96 （17.84） mg/kg, the cadmium content of 0.01 - 0.97 （0.16） mg/kg , the lead content of 0.10 to 153.88 （33 06） mg/kg, the chromium content of 0.30 to 194.23 （101.49） mg/kg. According to the requirements of the pollution-free vegetable base of soil heavy metals, lead, chromium content in full compliance, in addition to mercu- ry, arsenic, cadmium in soil part of the township is not suitable for the cultivation of pollution-free vegetables, other counties and towns are in line with the requirements.
出处
《农技服务》
2013年第1期30-33,共4页
AGRICULTURAL TECHNOLOGY SERVICE
关键词
贵阳市
土壤
重金属
无公害蔬菜
Guiyang
soils
Heavy- metal
Pollution-free vegetables
