MICROBIAL BIOMASS AND RELATIVE CONTRIBUTIONS OF BACTERIA AND FUNGI IN SOIL BENEATH TROPICAL RAIN-FOREST, HAINAN ISLAND, CHINA

被引：26

作者：

JIA, CY ^{[1
]}

INSAM, H ^{[1
]}

机构：

[1] FAL,INST BODENBIOL,W-3300 BRAUNSCHWEIG,GERMANY

来源：

JOURNAL OF TROPICAL ECOLOGY | 1991年 / 7卷

关键词：

BACTERIAL BIOMASS; FUNGAL BIOMASS; MICROBIAL BIOMASS; SELECTIVE INHIBITION; SOIL; TROPICAL RAIN FOREST;

D O I：

10.1017/S0266467400005678

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Soil microbial biomass (C(mic)) and its relation with soil carbon and nutrient contents in a tropical rain forest (Bawangling Nature Reserve, Hainan Island, P.R. China) were studied. C(mic) was determined by the substrate induced respiration (SIR) method; bacterial and fungal fractions were measured using a selective inhibition technique. For the A horizon, C(mic) ranged between 350 and 700-mu-g g-1 soil in April (beginning of the rainy season) and 250-600-mu-g g-1 in October (end of the rainy season). C(mic) contents of the AB and B horizons were lower, ranging from 80 to 350-mu-g C(mic) g-1 soil. On average, 75% of the biomass was bacterial, in the AB and B horizon this was slightly higher than in the A horizon. C(mic) was closely correlated with C(org) and N content. N and P contents as well as the respiratory response upon glucose addition indicated that towards the end of the rainy season compared with the start the soils were depleted in nutrients. These observations stress the importance of microbial biomass as a factor for nutrient retention in tropical forest ecosystems.

引用

页码：385 / 393

页数：9

共 20 条

[1]

Anderson J.P.E., Domsch K.H., Quantification of bacterial and fungal contributions to soil respiration, Archiv für Mikrobiologie, 93, pp. 113-127, (1973)

[2]

Anderson J.P.E., Domsch K.H., A physiological method for the quantitative measurement of microbial biomass in soils, Soil Biology & Biochemistry, 10, pp. 215-221, (1978)

[3]

A Yana Ba A., Tuck Well S.B., Jenkinson D.S., The effects of clearing and cropping on the organic reserves and biomass of tropical forest soils, Soil Biology & Biochemistry, 8, pp. 519-525, (1976)

[4]

Bagyaraj D.J., Mycorrhizas., pp. 537-546, (1989)

[5]

Bruenig E.F., Efleets of immissions on the carbon balance and the input and output of forest ecosystems, SCOPE|UNEP Sonderband, 55, pp. 97-106, (1983)

[6]

DENG, BANG-QUAN & LU-CHENG LU. 1986. Study of microbes and biochemical activity of different forest soils in Ding Hu Shan Biosphere Reserve. I. Microbial activity and biomass in relation to mineralization of carbonaceous matter of different forest soils. Tropical and Subtropical Forest Ecosystem

[7]

Heinemeyer O., Insam H., Kaiser E.A., Walenzik G., Soil microbial biomass and respiration measurements: An automated technique based on infra-red gas analysis. Plant and Soil, 116, pp. 191-195, (1989)

[8]

Hilton G., Nutrient cycling in tropical rainforests: Implications for management and sustained yield, Forest Ecology and Management, 22, pp. 297-300, (1987)

[9]

Insam H., Are the soil microbial biomass and basal respiration governed by the climatic regime?, Soil Biology & Biochemistry, 22, pp. 525-532, (1990)

[10]

Jenkinson D.S., POWLSON D.S., The effects of biocidal treatments on metabolism in soil. V. A method for measuring soil biomass, Soil Biology & Biochemistry, 8, pp. 209-213, (1976)

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