Nitrous oxide production in soils and the ratio of the fungal to bacterial biomass

被引：9

作者：

Blagodatskiy, S. A. ^{[1
]}

Avksent'ev, A. A. ^{[1
]}

Davydova, M. A. ^{[2
]}

Blagodatskaya, E. V. ^{[1
]}

Kurakov, A. V. ^{[2
,3
]}

机构：

[1] Russian Acad Sci, Inst Physicochem & Biol Problems Soil Sci, Pushchino 142290, Moscow Oblast, Russia

[2] Moscow MV Lomonosov State Univ, Dept Soil Biol, Fac Soil Sci, Moscow 119991, Russia

[3] Moscow MV Lomonosov State Univ, Int Biotechnol Ctr, Moscow 119899, Russia

来源：

EURASIAN SOIL SCIENCE | 2008年 / 41卷 / 13期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/S1064229308130140

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The proportion between the fungal and bacterial biomass, the potential activity of denitrification, and the intensity of N2O production were determined in the soils (chernozem and soddy-podzolic) of secondary biocenoses formed upon the abandoning of agricultural lands. The substitution of meadow and forest vegetation for agrocenoses has led to an increase in the percentage of the fungal biomass in the upper soil horizons. The rate of the net N2O production after the soil moistening positively correlated with the content of nitrates. In the soddy-podzolic soil (pH 3.7-5.6), the rate of nitrous oxide production was higher than that in the chernozem (pH 6.1-6.8). The rate of N2O production was inversely proportional to the bacterial biomass in the soils.

引用

页码：1448 / 1455

页数：8

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