Effects of lanthanum on microbial biomass carbon and nitrogen in red soil

被引：0

作者：

Chu, HY ^{[1
]}

Zhu, JG ^{[1
]}

Xie, ZB ^{[1
]}

Cao, ZH ^{[1
]}

Li, ZG ^{[1
]}

Zeng, Q ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Soil Sci, Lab Mat Cycling Pedosphere, Nanjing 210008, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2001年 / 19卷 / 01期

关键词：

rare earths; lanthanum; red soil; microbial biomass C; microbial biomass N;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The result of soil. culture experiment shows that lanthanum has inhibitory effect on the microbial biomass C and N in red soil, and the inhibition is strengthened with increasing concentration of La. The result of rice pot culture experiment shows that low concentration of La has slight stimulative effect on the microbial biomass C and N in red soil, but its high concentration has inhibitory effect and the inhibition is strengthened with increasing concentration of La. Soil microbial biomass is an important indicator for evaluating rare earths-polluted soil. It is assumed that the critical La concentration is 100 mg.kg(-1) at which red soil tends to be polluted.

引用

页码：63 / 66

页数：4

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