Seasonal dynamics of microbial biomass C, N and P during regrowth of a disturbed subtropical humid forest in north-east India

被引：67

作者：

Maithani, K ^{[1
]}

Tripathi, RS ^{[1
]}

Arunachalam, A ^{[1
]}

Pandey, HN ^{[1
]}

机构：

[1] NE HILL UNIV,DEPT BOT,PLANT ECOL DEPT,SHILLONG 793022,MEGHALAYA,INDIA

来源：

APPLIED SOIL ECOLOGY | 1996年 / 4卷 / 01期

关键词：

microbial biomass; soil nutrient pool; forest regrowth;

D O I：

10.1016/0929-1393(96)00101-1

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Seasonal dynamics of microbial biomass C, N and P were studied in 7-, 13- and 16-year-old regrowths of a disturbed subtropical humid forest in north-east India. Microbial biomass C, N and P were highest during the winter and lowest during the rainy season at both the 0-10 and 10-20 cm sample depths. The surface soil layer (0-10 cm) had significantly higher microbial biomass C, N and P than the subsurface layer (10-20 cm). Microbial biomass C, N and P were highest in the 16-year-old regrowth and lowest in the 7-year-old regrowth, coinciding with highest and lowest clay content and nutrient status of the soil in the 16- and 7-year-old regrowths, respectively. The C/N and C/P ratios in microbial biomass showed a similar trend. Microbial biomass was negatively correlated with soil temperature and pH in all three regrowths.

引用

页码：31 / 37

页数：7

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