Microbial biomass, functional capacity, and community structure after 12 years of soil warming

被引：326

作者：

Frey, S. D. ^{[1
]}

Drijber, R. ^{[2
]}

Smith, H. ^{[1
]}

Melillo, J. ^{[3
]}

机构：

[1] Univ New Hampshire, Dept Nat Resources & Environm, Durham, NH 03824 USA

[2] Univ Nebraska, Dept Agron, Lincoln, NE 68583 USA

[3] Ecosyst Ctr, Woods Hole Marine Biol Lab, Woods Hole, MA 02543 USA

来源：

SOIL BIOLOGY & BIOCHEMISTRY | 2008年 / 40卷 / 11期

基金：

美国国家科学基金会;

关键词：

Catabolic response profiles; Fatty acid methyl ester (FAME) analysis; Microbial biomass; Microbial community structure; Soil warming;

D O I：

10.1016/j.soilbio.2008.07.020

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

We examined the effect of chronic soil warming on microbial biomass, functional capacity, and community structure in soil samples collected from the Soil Warming Study located at the Harvard Forest Long-term Ecological Research (LTER) site. Twelve years of chronic soil warming at 5 degrees C above the ambient temperature resulted in a significant reduction in microbial biomass and the utilization of a suite of C substrates which included amino acids, carbohydrates, and carboxylic acids. Heating significantly reduced the abundance of fungal biomarkers. There was also a shift in the mineral soil microbial community towards gram positive bacteria and actinomycetes. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2904 / 2907

页数：4

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