Temperature sensitivity of young and old soil carbon - Same soil, slight differences in 13C natural abundance method, inconsistent results

被引：23

作者：

Conen, Franz ^{[1
]}

Karhu, Kristiina ^{[2
]}

Leifeld, Jens ^{[3
]}

Seth, Barbara ^{[1
]}

Vanhala, Pekka ^{[2
]}

Liski, Jari ^{[2
]}

Alewell, Christine ^{[1
]}

机构：

[1] Univ Basel, Inst Environm Geosci, CH-4056 Basel, Switzerland

[2] Finnish Environm Inst, FIN-00251 Helsinki, Finland

[3] Agroscope Reckenholz Res Stn ART, CH-8046 Zurich, Switzerland

来源：

SOIL BIOLOGY & BIOCHEMISTRY | 2008年 / 40卷 / 10期

基金：

芬兰科学院;

关键词：

Carbon dioxide; Mineralisation; Temperature sensitivity; Carbon isotopes;

D O I：

10.1016/j.soilbio.2008.07.004

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Predictions of future climate change critically depend on the temperature sensitivity of soil organic carbon decomposition. One question of debate is whether temperature sensitivity differs between young or labile and old or more stable carbon pools. We re-analysed soil that has previously led to the conclusion that old soil carbon is more temperature sensitive. The re-analysis gave different results compared to the earlier study, most likely due to small differences in an otherwise very similar experimental approach. This study illustrates how conclusions may depend upon details of the experimental setting. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2703 / 2705

页数：3

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