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
Nonlinear root-derived carbon sequestration across a gradient of nitrogen and phosphorous deposition in experimental mesocosms
TL;DR: In this paper, the authors couple isotope, soil C fractionation and mesocosm techniques to assess the sequestration of plant-C inputs, and their partitioning into C pools with different sink potentials, under an experimental gradient of N and P deposition.
Effect of different fertilization modes on soil organic carbon sequestration in paddy fields in South China: A meta-analysis
TL;DR: In this article, a meta-analysis was performed to quantify the relative annual change of soil organic carbon content (RAC) and SOC sequestration duration in paddy fields under five different fertilization modes (inorganic nitrogen fertilization, N; inorganic nitrogen and phosphorus fertilisation, NP; in organic nitrogen, phosphorus, and potassium fertilization (NPK); organic fertilization O; and inorganic combined with organic fertilizing, OF).
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The inorganic nutrient cost of building soil carbon
TL;DR: Inorganic nutrients are a hidden cost for sequestering carbon in soil organic matter as mentioned in this paper, and inorganic nutrients can be used as a source of renewable energy for greenhouses.
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Leaf litter contributes more to soil organic carbon than fine roots in two 10-year-old subtropical plantations
Jianbo Cao,Xinxing He,Yuanqi Chen,Yuping Chen,Yanju Zhang,Shiqin Yu,Lixia Zhou,Zhanfeng Liu,Chenlu Zhang,Shenglei Fu,Shenglei Fu +10 more
TL;DR: It is suggested that plant leaf litter is more important than roots in maintaining the balance of the SOC pool in subtropical forest plantations.
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Effect of Coal Gasification Fine Slag on the Physicochemical Properties of Soil
TL;DR: In this paper, the authors investigated the use of coal gasification fine slag (CGFS) as a soil amendment for alkaline sandy lands and found that 20% CGFS significantly increased the germination rates of maize and wheat from 0 to 100%.
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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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