摘要
以潼关金矿区农田土壤Hg污染区的小麦、蔬菜、水果中的Hg含量为重点研究对象,与尚未污染的农田土壤区进行对比,研究土壤Hg污染的农作物效应。评价区小麦样本Hg的超标率为78.57%,小麦Hg超标与土壤Hg污染的关系明显。评价区萝卜样本超标率为40%,叶菜、西红柿、苹果、红薯中样本超标率均为100%,对照区果蔬类也全部超标,但明显低于评价区。评价区农作物Hg超标倍数从大到小依次为:青菜>油麦菜>萝卜叶>西红柿>苹果>红薯>小麦>萝卜。土壤Hg污染的环境效应极为严重,矿区环境污染防治刻不容缓。
The paper focuses on the mercury contents in wheat, vegetable and fruit in mercury contaminated farmland softs in the Tongguan gold area and their comparison with those in uncontaminated farmland softs, as well as the crop effect of mercury contamination of softs. The Hg content of the wheat sample in the evaluation area is 78.5% higher than the standard rate. The excess of the standard rate is notably related to mercury contamination of softs. The mercury content in the radish sample in the evaluation area is 40% in excess of the standard rate and the percentage rates of exceeding the mercury content standards for the leaf vegetables, tomato, apple and sweet potato are all 100%. The mercury contents in fruits and vegetables in the contrast area all exceed their standard rates but notably lower than those in the evaluation area. The crops in the evaluation area are listed in decreasing order of times higher than the standard mercury contents as follows： green vegetables 〉 oft vegetable 〉 radish leaf 〉 tomato 〉 apple 〉 sweet potato 〉 wheat〉radish. The environmental effect of mercury-contaminated softs is very serious. It is urgent to control environmental contamination in the mining area.
出处
《地质通报》
CAS
CSCD
北大核心
2006年第11期1349-1353,共5页
Geological Bulletin of China
基金
中国国土资源调查项目<陕西潼关金矿区环境地质问题专题调查>(200412300057-1
1212010541301-1)资助。
关键词
农作物
农田土壤
HG污染
潼关金矿区
陕西
crop
farmland soft
Hg contamination
Tongguan gold mining area
Shaaaxi
