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
The role of geochemistry in organic carbon stabilization against microbial decomposition in tropical rainforest soils
Mario Reichenbach,Peter Fiener,Gina Garland,Marco Griepentrog,Johan Six,Sebastian Doetterl,Sebastian Doetterl +6 more
- 02 Aug 2021
TL;DR: In this paper, the authors investigated the role of geochemical properties in soil organic carbon (SOC) stabilization in tropical mountain forests, showing that reactive secondary mineral phases drive SOC properties and stabilization mechanisms, together with other mechanisms such as aggregation or C stabilization by clay content.
The global biogeography of soil priming effect intensity
Chengjie Ren,Fei Mo,Zhenghu Zhou,Felipe Bastida,Manuel Delgado-Baquerizo,Jieying Wang,Xinyi Zhang,Yiqi Luo,Timothy J. Griffis,Xin-Ning Han,Gehong Wei,Jun Wang,Zekun Zhong,Yongzhong Feng,Guangxin Ren,Xiaojiao Wang,K. Yu,Fazhu Zhao,Gaihe Yang,Fenghui Yuan +19 more
TL;DR: In this paper , a global atlas of soil priming effect intensity is presented, with soil texture and carbon content as the most important factors associated with priming effects, with sandy soils from tropical and mid-latitudes supporting the highest soil organic matter (priming effect) and soils with greater C content and fine textures from high latitudes maintaining the lowest soil primings effects.
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Organic Matter and Water Addition Enhance Soil Respiration in an Arid Region
Liming Lai,Jianjian Wang,Yuan Tian,Xuechun Zhao,Lianhe Jiang,Xi Chen,Yong Gao,Shaoming Wang,Yuanrun Zheng +8 more
TL;DR: The results indicated that the soil CO2 flux of theshrubland is likely to increase with climate change, and precipitation played a dominant role in regulating soil C balance in the shrubland of an arid region.
Forecasting decline in ecosystem services under realistic scenarios of extinction.
J.E. Duffy,Diane S. Srivastava,Jennie R. McLaren,Mahesh Sankaran,Martin Solan,John N. Griffin,Mark C. Emmerson,Kate E. Jones +7 more
- 30 Jul 2009
TL;DR: In this paper, the authors present a trait-based framework linking empirical data on extinction trajectories, through subsequent community reorganization, to changes in functioning of multi-scale ecosystems.
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In situ soil respiration at reclaimed and unreclaimed post-mining sites: Responses to temperature and reclamation treatment
TL;DR: In this article, the authors measured soil respiration and soil temperature in chronosequences of reclaimed and unreclaimed post-mining sites (10-50-year-old coal mining heaps near Sokolov, Czech Republic) to determine the major factors affecting temperature-dependent soil oxygen consumption.
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