Study on the Influence of Soil Microbial on Soil Respiration at Various Vegetations

doi:10.7668/hbnxb.2010.03.041

Abstract

Abstract: Soil respiration is closely related with soil microbe.It has been researched the effect of soil microbe on the soil respiration rate of various vegetations in the northern slope of Taibai Mountain.The results showed that the order of mean soil respiration rate of various vegetations was as following: broad-leaved oak vegetation( 5.5 μmol/( m²·s) )＞birch vegetation( 4.25 μmol( m²·s) )＞deciduous broad-leaved vegetation( 4.62 μmol/( m²·s) )＞poplar vegetation( 3.09 μmol/( m²·s) )＞Larix chinensi vegetation( 1.77 μmol/( m²·s) )＞Abies chensiensis vegetation( 1.73 μmol/( m²·s) )＞alpine meadow( 1.63 μmol/( m²·s) ).With the increase of altitude, the quantity of fungi increased, but the quantity of bacteria and actinomycosis had showed single-peak trend.Soil respiration rate were highly significantly positive to bacterial and actinomycetes( P< 0.01),and soil respiration rate was highly significant negative to fungi( P< 0.01).However altitude was only positive to soil respiration rate.Microbe community had strong effect on soil respiration．

Key words: Soil respiration rate, Bacteria, Actinomycetes, Fungi

CLC Number:

S154.3

QU Ran,, LI Jun-sheng, XIAO Neng-wen, HU Li-le, LUO Jian-wu, FAN Jun-tao. Study on the Influence of Soil Microbial on Soil Respiration at Various Vegetations[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(3): 196-199. doi: 10.7668/hbnxb.2010.03.041.

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