Heavy metal concentrations and enzyme activities in soil from a contaminated Korean shooting range

被引:106
|
作者
Lee, IS [1 ]
Kim, OK
Chang, YY
Bae, B
Kim, HH
Baek, KH
机构
[1] Ewha Womans Univ, Dept Life Sci, Seoul 120750, South Korea
[2] Anyang Univ, Dept Environm Engn, Anyangshi, South Korea
[3] Kwangwoon Univ, Dept Environm Engn, Seoul, South Korea
[4] Kyungwon Univ, Dept Civil & Environm Engn, Sungnamshi, South Korea
关键词
heavy metal; enzyme activity; microbial biomass; 2,4,6-trinitrotoluene; shooting ranges;
D O I
10.1016/S1389-1723(02)80217-1
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Soil enzyme activities and heavy metal concentrations (Cd, Zn, Cu and Pb) were measured at a general shooting range in South Korea. Total heavy metal concentrations varied with pH, and were negatively correlated with moisture content and organic matter. Most enzyme activities (dehydrogenase, acid phosphatase and beta-glucosidase) and ATP values (measure of biomass) were lower in polluted soils, especially in bald spots contaminated by heavy metals and TNT (2,4,6-tri-nitrotoluene). These data indicate that concentrated shooting activity inhibits enzyme activity and microbial growth. Soil enzyme activities in richly vegetated spots around the general shooting range were higher (2- to 3-fold) than in bald spots, but lower in areas of heavy metal contamination. Our results demonstrate that the dominant plant species in richly vegetated spots accumulated heavy metals from soils, and suggest certain plants may be useful for decontaminating polluted soil.
引用
收藏
页码:406 / 411
页数:6
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