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
Does calculation method affect the nutrient-addition effect on priming?
Jiguang Feng,Biao Zhu +1 more
TL;DR: In this paper, the authors conducted a global synthesis of 52 nutrient manipulation studies and found that the PEnutrient generated by different calculations are very different, particularly when nutrient addition alone has a large effect on SOM decomposition (or microbial basal respiration).
Labile carbon addition alters soil organic carbon mineralization but not its temperature sensitivity in a freshwater marsh of Northeast China
TL;DR: In this paper, the effects of temperature on priming of wetland organic carbon (SOC) mineralization and its temperature sensitivity under varied C inputs were investigated, and the authors concluded that substrate availability and temperature change may have great impacts on wetland soil C turnover through priming effects.
Traits of dominant tree species predict local scale variation in forest aboveground and topsoil carbon stocks
Dunmei Lin,Dunmei Lin,Kristina J. Anderson-Teixeira,Kristina J. Anderson-Teixeira,Jiangshan Lai,Xiangcheng Mi,Haibao Ren,Keping Ma +7 more
TL;DR: The results support the mass ratio hypothesis but not the niche complementarity hypothesis, which implies that, when it comes to maximizing forest carbon storage, conservation priorities should focus on protection of species with traits associated to high carbon stocks.
Effects of biotic factors on net ecosystem production in forests: A review
WU Jianping,LIU Zhanfeng +1 more
TL;DR: This review synthesizes recent findings on net ecosystem production (NEP) in forests, highlighting the effects of biotic factors, including plant diversity, soil microbial communities, fauna activities, and human disturbance, on carbon cycling and sequestration.
The influence of land use and management on soil carbon levels for crop-pasture systems in Central New South Wales, Australia
Warwick Badgery,Aaron T. Simmons,Brian W. Murphy,Andrew Rawson,Karl O. Andersson,Vanessa E. Lonergan +5 more
TL;DR: In this article, the authors conducted a broad-scale survey to determine the difference in soil organic carbon (SOC) stocks between mixed farming and pasture cropping systems in the slopes region and for cropping and pasture in the plains region of Central West NSW, Australia.
References
An extraction method for measuring soil microbial biomass c
TL;DR: In this paper, the effects of fumigation on organic C extractable by 0.5 m K2SO4 were examined in a contrasting range of soils and it was shown that both ATP and organic C rendered decomposable by CHCl3 came from the soil microbial biomass.
11.8K
•Book
Decomposition in Terrestrial Ecosystems
M. J. Swift,O. W. Heal,J. M. Anderson +2 more
- 01 Sep 1979
4.7K
The priming effect of organic matter: a question of microbial competition
TL;DR: In this paper, the authors build a conceptual model of the priming effect based on the contradictory results available in the literature adopting the concept of nutritional competition, and they postulate that priming results from the competition for energy and nutrient acquisition between the microorganisms specialized in the decomposition of fresh organic matter and those feeding on polymerised SOM.
1.7K
•Book
Structure and Organic Matter Storage in Agricultural Soils
M.R. Carter,B. A. Stewart +1 more
- 23 Dec 1995
TL;DR: In this article, the authors present an analysis of Soil organic matter storage in Agroecosystems. But their focus is on the storage of organic matter in Soil Fraction and Aggregates.
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