成都理工大学学报（自然科学版）2013，Vol.40Issue(2)：179-183,5.DOI:10.3969/j.issn.1671-9727.2013.02.09
罗汉果主产区土壤重金属潜在生态危害评价
Evaluation of potential ecological risk from heavy metals in soil of main producing Siraitia grosvenorii areas
摘要
Abstract
This paper tests and analyses the contents of 5 heavy metal elements (As, Cd, Pb, Hg, Cr) in the Siraitia grosvenorii and the A layer soil on 8 different formations in the north region of Guilin City. The authors analyze the quality of the soil and study potential ecological harm degree of the heavy metal elements in the soil by use of the Hakanson potential ecological risk index. The results are as follows. The pollution level of the A layer of soil shows medium or above. For example, K formation is a moderate pollution area and ∈q and Pt21 formations are strength contamination zones. The main pollution elements are Pb, Cr, and As. The content of 5 heavy metal elements in the Siraitia grosvenorii are far lower than the national green industry standard value, indicating that the Siraitia grosvenorii is characterized by anti-pollution and high quality in the karst-ecological region. Thus, the development of resource plant——Siraitia grosvenorii should be strengthened.关键词
潜在生态危害/土壤/重金属/罗汉果/桂北/评价Key words
potential ecological risk/soil/heavy metal/Siraitia grosvenorii/north region/Guilin City分类
资源环境引用本文复制引用
王娟,韩子钧,彭培好,曾其国..罗汉果主产区土壤重金属潜在生态危害评价[J].成都理工大学学报（自然科学版）,2013,40(2):179-183,5.基金项目
国家科技支撑计划项目(2011BA101B03) （2011BA101B03）
国家自然科学基金资助项目(30860379) （30860379）
