Soil microbial carbon use efficiency and biomass turnover in a long-term fertilization experiment in a temperate grassland
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- 作者：Marie Spohna ; b ; marie.spohn@uni-bayreuth.de" class="auth_mail" title="E-mail the corresponding author ; Erich M. Pö ; tschc ; Stephanie A. Eichorstd ; Dagmar Woebkend ; Wolfgang Waneka ; Andreas Richtera
- 关键词：Nutrients ; Nitrogen addition ; Microbial growth yield ; Mean residence time ; Stoichiometry ; Nutrient limitation
- 刊名：Soil Biology & Biochemistry
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：97
- 期：Complete
- 页码：168-175
- 全文大小：699 K
文摘
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Microbial DNA was labeled with 18O
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H2O to determine microbial growth.
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Nitrogen but not phosphorus or potassium fertilization increased microbial C use efficiency.
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Nitrogen fertilization decreased microbial C uptake.
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Net primary production and legumes did not affect microbial C use efficiency.
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Microbial biomass turnover time was on average 95 days irrespective of fertilization.