Seasonal dynamics in soil microbial biomass C, N and P in a mixed-oak forest ecosystem of Manipur, North-east India

被引：135

作者：

Devi, NB ^{[1
]}

Yadava, PS ^{[1
]}

机构：

[1] Manipur Univ, Dept Life Sci, Imphal 795003, Manipur, India

来源：

APPLIED SOIL ECOLOGY | 2006年 / 31卷 / 03期

关键词：

mixed-oak forest; soil microbial biomass; immobilization; soil nutrient pool;

D O I：

10.1016/j.apsoil.2005.05.005

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The soil microbial biomass C, N and P were studied in two stands of mixed-oak forest ecosystem of Manipur, North-east India to assess the influence of abiotic variables and difference in forest stand on the seasonal variation in soil microbial biomass. Microbial biomass C, N and P were highest during rainy season and lowest during winter in both the forest stands with the exception of microbial N which was lowest in summer in stand II. Microbial biomass C and P showed a positive significant correlation with abiotic variables, i.e. soil moisture, soil temperature, rainfall, mean air temperature and relative humidity in both the stands. Whereas the microbial N exhibited a positive significant correlation with abiotic variables in stand I, but showed a significant correlation only with soil moisture in stand II. The contribution of microbial C, N and P to total soil organic C, total N and P indicates that microbial biomass is immobilized more in forest stand I in comparison to forest stand II. (C) 2005 Elsevier B.V. All rights reserved.

引用

页码：220 / 227

页数：8

共 37 条

[1] PRINCIPAL COMPONENTS-ANALYSIS OF THE SOIL MICROBIAL-POPULATION OF HUMID ZONE OF GALICIA (SPAIN) [J].

ACEA, MJ ;

CARBALLAS, T .

SOIL BIOLOGY & BIOCHEMISTRY, 1990, 22 (06) :749-759

[2]

Anderson J.M., 1993, TROPICAL SOIL BIOL F

[3] The impact of disturbance on detrital dynamics and soil microbial biomass of a Pinus kesiya forest in north-east India [J].

Arunachalam, A ;

Maithani, K ;

Pandey, HN ;

Tripathi, RS .

FOREST ECOLOGY AND MANAGEMENT, 1996, 88 (03) :273-282

[4]

Arunachalam A., 2000, Plant and Soil, V223, P185

[5] MICROBIAL BIOMASS NITROGEN POOL IN SOILS FROM A WARM TEMPERATE GRASSLAND, AND FROM DECIDUOUS AND EVERGREEN FORESTS IN CHIBA, CENTRAL JAPAN [J].

BILLORE, SK ;

OHSAWA, M ;

NUMATA, M ;

OKANO, S .

BIOLOGY AND FERTILITY OF SOILS, 1995, 19 (2-3) :124-128

[6]

Bremner J. M., 1982, Methods of soil analysis. Part 2. Chemical and microbiological properties, P595

[7] PHOSPHORUS IN THE SOIL MICROBIAL BIOMASS [J].

BROOKES, PC ;

POWLSON, DS ;

JENKINSON, DS .

SOIL BIOLOGY & BIOCHEMISTRY, 1984, 16 (02) :169-175

[8] MEASUREMENT OF MICROBIAL BIOMASS PHOSPHORUS IN SOIL [J].

BROOKES, PC ;

POWLSON, DS ;

JENKINSON, DS .

SOIL BIOLOGY & BIOCHEMISTRY, 1982, 14 (04) :319-329

[9] CHLOROFORM FUMIGATION AND THE RELEASE OF SOIL-NITROGEN - A RAPID DIRECT EXTRACTION METHOD TO MEASURE MICROBIAL BIOMASS NITROGEN IN SOIL [J].

BROOKES, PC ;

LANDMAN, A ;

PRUDEN, G ;

JENKINSON, DS .

SOIL BIOLOGY & BIOCHEMISTRY, 1985, 17 (06) :837-842

[10] SEASONAL-CHANGES IN MICROBIAL BIOMASS AND NUTRIENT FLUSH IN FOREST SOILS [J].

DIAZRAVINA, M ;

ACEA, MJ ;

CARBALLAS, T .

BIOLOGY AND FERTILITY OF SOILS, 1995, 19 (2-3) :220-226

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