贵州龙井洞和白龙洞裸灶螽对重金属的富集

广西师范大学学报（自然科学版） ›› 2012, Vol. 30 ›› Issue (4): 104-109.

贵州龙井洞和白龙洞裸灶螽对重金属的富集

张俊, 黎道洪, 杜典松

贵州师范大学生命科学学院,贵州贵阳 550001

收稿日期:2012-04-19 发布日期:2018-11-27
通讯作者: 黎道洪(1952—),男,贵州大方人,贵州师范大学教授。E-mail:daohongli88@163.com
基金资助:
国家自然科学基金资助项目(31060287,31160097)

Enrichment of Heavy Metals in Diestrammena from Longjing Cave and Bailong Cave of Guizhou,China

ZHANG Jun, LI Dao-hong, DU Dian-song

College of Life Sciences,Guizhou Normal University,Guiyang Guizhou 550001,China

Received:2012-04-19 Published:2018-11-27

摘要/Abstract

摘要： 调查贵州省龙井洞和白龙洞裸灶螽部分环境因子,对2个洞穴的裸灶螽、土壤和水中重金属(Cu、Cr、Ni、Zn、Hg和As)含量进行测定,研究两洞穴裸灶螽的富集系数,对两洞穴土壤中重金属的污染指数及生态风险进行评价,结果表明:两洞穴有光带、弱光带和黑暗带土壤中重金属Cu、Cr、Ni、Zn、Hg及As的平均含量超过我国土壤背景值;两洞穴裸灶螽对Cu和Zn明显富集;龙井洞土壤中6种重金属潜在生态风险处于较高生态危害水平,且潜在生态风险系数大小排列为Hg＞As＞Cu＞Ni＞Zn＞Cr;白龙洞土壤中6种重金属潜在生态风险处于高生态危害水平,且潜在生态风险系数大小排列为Hg＞As＞Cu＞Ni＞Zn＞Cr,其中Hg是两洞穴最主要的生态风险因子。

关键词: 裸灶螽, 重金属富集, 潜在生态风险, 龙井洞, 白龙洞, 贵州省

Abstract: Diestrammena and part of environmental factors from Longjing cave and Bailong cave in Guizhou province,were investigated.The contents of heavy metals (Cu、Cr、Ni、Zn、Hg and As) in Diestrammena,in soil and waterfromtwo caves were measured,and the enriched coefficient of Diestrammena from two caves was studied,and the pollution index and the ecological risk of heavy metalsin soil from two caves were assessed.The results showed that the average content of Cu、Cr、Ni、Zn、Hg and As in two caves soil with light belt,reflection light belt and dark belt exceeds the background value of soil in China.The heavy metals Cu and Zn are significantly enriched in Diestrammena from two caves.Thepotential ecological risk of six heavy metals reachs a higher level in soil fromLongjing cave,and the order of potential ecological risk indexes of six heavy metals is Hg＞As＞Cu＞Ni＞Zn＞Cr.The potential ecological risk of six heavy metals reachs the highest level in soil from Bailong cave,and the order of potential ecological risk indexes of six heavy metals is Hg＞As＞Cu＞Ni＞Zn＞Cr,in which Hg isthe most important ecological risk factor in two caves.

Key words: Diestrammena, heavy metals enrichment, potential ecological risk, longjing cave, bailong cave, Guizhou province,China

中图分类号:

Q958.11

张俊, 黎道洪, 杜典松. 贵州龙井洞和白龙洞裸灶螽对重金属的富集[J]. 广西师范大学学报（自然科学版）, 2012, 30(4): 104-109.

ZHANG Jun, LI Dao-hong, DU Dian-song. Enrichment of Heavy Metals in Diestrammena from Longjing Cave and Bailong Cave of Guizhou,China[J]. Journal of Guangxi Normal University(Natural Science Edition), 2012, 30(4): 104-109.

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