Journal Article10.1111/J.1461-0248.2004.00579.X
Carbon input to soil may decrease soil carbon content
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TL;DR: In this article, a negative relationship between primary production and soil carbon (C) content is found, and the authors conclude that energy available to soil microbes and microbial competition are important determinants of soil C decomposition.
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Abstract: It is commonly predicted that the intensity of primary production and soil carbon (C) content are positively linked. Paradoxically, many long-term field observations show that although plant litter is incorporated to soil in large quantities, soil C content does not necessarily increase. These results suggest that a negative relationship between C input and soil C conservation exists. Here, we demonstrate in controlled conditions that the supply of fresh C may accelerate the decomposition of soil C and induce a negative C balance. We show that soil C losses increase when soil microbes are nutrient limited. Results highlight the need for a better understanding of microbial mechanisms involved in the complex relationship between C input and soil C sequestration. We conclude that energy available to soil microbes and microbial competition are important determinants of soil C decomposition.
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Citations
Rhizosphere priming effect on N mineralization in vegetable and grain crop systems
Thiago de Oliveira Vargas,Amy Concilio,Leomar Guilherme Woyann,Ricardo Henrique Silva Santos,Weixin Cheng +4 more
TL;DR: The data strongly rejects the “N-mining” hypothesis which would predict a much reduced RPE with N fertilization, and suggest that this hypothesis is not a universal explanation for the observed priming phenomena.
13
Soil organic carbon priming co-regulated by labile carbon input level and long-term fertilization history.
Lei Wu,Jun Wang,Huimian Xu,Xinliang Xu,Hong-jun Gao,Minggang Xu,Wenjun Zhang +6 more
TL;DR: Soil organic carbon priming is co-regulated by labile carbon input levels and long-term fertilization history, with manure application potentially alleviating priming via increased soil carbon stability and nutrient availability, impacting soil fertility and carbon sequestration.
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Building houses and managing lawns could limit yard soil carbon for centuries.
TL;DR: Land conversion to yard can limit soil C pools for centuries, with contemporary management key to that trajectory, and the importance of accounting for pre-development legacies to reveal the response of soil properties to land conversion and present use is pointed to.
Not all soil carbon is created equal: Labile and stable pools under nitrogen input
NULL AUTHOR_ID,Imran Mehmood,NULL AUTHOR_ID,NULL AUTHOR_ID,NULL AUTHOR_ID,NULL AUTHOR_ID,NULL AUTHOR_ID,Pete Smith,NULL AUTHOR_ID,NULL AUTHOR_ID,NULL AUTHOR_ID +10 more
TL;DR: Nitrogen input reduces soil carbon mineralization, with labile pools being more sensitive than stable ones, and labile pools contributing significantly to total CO2 release and suppression under N input, affecting microbial biomass and community composition.
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Phyllostachys edulis (moso bamboo) rhizosphere increasing soil microbial activity rather than biomass
TL;DR: In this paper, the impacts of Phyllostachys edulis (moso bamboo) rhizospheres on soil nutrient contents and microbial properties in a moso bamboo forest with different fertilizer applications and to link soil microbial activities with abiotic and biotic factors.
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