Input of easily available organic C and N stimulates microbial decomposition of soil organic matter in arctic permafrost soil
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- 作者：Birgit Wilda ; b ; birgit.wild@univie.ac.at" class="auth_mail ; Jö ; rg Schneckera ; b ; Ricardo J. Eloy Alvesb ; c ; Pavel Barsukovd ; Ji艡í ; Bá ; rtae ; Petr 膶apeke ; Norman Gentschf ; Antje Gittelb ; g ; Georg Guggenbergerf ; Nikolay Lashchinskiyh ; Robert Mikuttaf ; Olga Rusalimovad ; Hana &Scaron ; antr暖膷ková ; e ; Olga Shibistovaf ; i ; Tim Urichb ; c ; Margarete Watzkaa ; Galina Zrazhevskayai ; Andreas Richtera ; b ; andreas.richter@univie.ac.at" class="auth_mail
- 关键词：Priming ; Organic matter decomposition ; Phospholipid fatty acid (PLFA) ; Tundra ; Permafrost
- 刊名：Soil Biology & Biochemistry
- 出版年：August 2014
- 年：2014
- 卷：75
- 期：Complete
- 页码：143-151
- 全文大小：728 K
文摘
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We tested the response of decomposition in arctic soils to organic matter input.
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Decomposition rates in organic topsoil were hardly affected by substrate additions.
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Decomposition rates in mineral subsoil doubled after addition of organic C.
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Decomposition rates of cryoturbated material doubled after addition of organic N.
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Arctic C stocks might be diminished by increased C and N availability with warming.