自然科学版
陕西师范大学学报(自然科学版)
资源与环境科学
长武县苹果园土壤重金属含量及其评价
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刘云霞1,庞奖励1,2,丁敏1,楚永波1
(1 陕西师范大学 旅游与环境学院, 陕西 西安 710062;2 中国科学院 地球环境研究所, 陕西 西安710075)
刘云霞,女,硕士研究生,研究方向为土地资源开发与环境演变.
摘要:
依据无公害果园土壤环境质量标准和绿色食品产地土壤环境质量标准,对陕西长武县苹果园地土壤环境质量进行了评价.结果表明:以无公害果园土壤环境质量为评价标准,长武县果园土壤重金属污染程度呈现Ni>As>Cr>Zn>Cu>Pb的特征,土壤重金属综合污染指数小于0.7;以绿色食品产地土壤环境质量为评价标准,长武县果园土壤重金属污染程度有Cr>As>Pb>Cu的特征,土壤重金属综合污染指数小于0.7.评价表明,长武县苹果园土壤环境质量为清洁.
关键词:
苹果园; 土壤重金属; 评价; 长武县
收稿日期:
2009-04-03
中图分类号:
X53
文献标识码:
A
文章编号:
1672-4291(2009)05-0087-05
基金项目:
国家自然科学基金资助项目(40471119,40571154)
Doi:
Evaluation of heavy metal contents of apple orchard soil in Changwu county
LIU Yun-xia1, PANG Jiang-li1,2*, DING Min1, CHU Yong-bo1
(1 College of Tourism and Environmental Sciences, Shaanxi Normal University, Xi′an 710062, Shaanxi, China; 2 Institute of Earth Environment, Chinese Academy of Sciences, Xi′an 710075, Shaanxi, China)
Abstract:
According to the soil environmental quality standard in the producing area of the nuisance free fruits orchard and the green food, the soil environment quality of apple orchard in Changwu county, Shaanxi province is evaluated. The results indicated that the contaminated degree of soil heavy metals has the feature of Ni>As>Cr>Zn>Cu>Pb,the synthetic pollution index of soil heavy metals was less 0.7 according to the standard of soil for the nuisance free fruits. The contaminated degree of soil heavy metals has the feature of Cr>As>Pb>Cu,the synthetic pollution index of soil heavy metals was less 0.7 according to the standard of soil for the green food. In general, the soil environment quality of apple orchard in Changwu county is clean.
KeyWords:
apple orchard; soil heavy metal; assessment; Changwu county