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
Litter priming and trenching greatly affect soil respiration in a mature subtropical evergreen broadleaf forest in Southwestern China
Jian Wang,Liming Lai,Xuechun Zhao,Lingmei Jiang,Yuzuo Wang,Jie Zhou,F. Wang,C. Zhang,Yi Zheng +8 more
TL;DR: In this article, the authors conducted a controlled experiment that included addition and removal of litter, and trenching, and found that litter removal increased soil respiration and litter addition increased it.
Liming and priming: the long-term impact of pH amelioration on mineralisation may negate carbon sequestration gains.
Samantha Grover,Samantha Grover,Clayton R. Butterly,Clayton R. Butterly,Xiaojuan Wang,Deirdre B. Gleeson,Lynne M. Macdonald,Caixian Tang +7 more
- 01 Jun 2021
TL;DR: In this article, the authors investigated the interactions between liming and soil carbon dynamics and quantified the CO2-C originating from three different processes; decomposition of extant soil organic carbon (SOC), decomposition and priming of the added crop residue.
Impacts of land-use change on soil microbial communities and their function in the Amazon Rainforest
TL;DR: The impact of large-scale ecosystem conversion on the composition and activity of the soil microbial community is crucial for understanding potentially consequential shifts in nutrient and greenhouse gas cycling, as well as adding to the body of knowledge concerning how tropical ecosystems respond to human disturbance as discussed by the authors .
Soil Science and the Carbon Civilization
TL;DR: The strong link between soil and civilization (Howard, 1940, 1947, Hyams, 1952, Diamond, 2005) is likely to become stronger in the future through an increase in anthropogenic demands on world soils as mentioned in this paper.
Forest Biomass Utilization for Biofuels and Bioproducts
TL;DR: This research presents a novel and scalable approach called “Forest Ecology and Hydrology,” developed by the University of West Hungary and the Chinese Academy of Forestry, Beijing 100091, which aims to provide real-time information about the physical properties of wood and its applications in the timber industry.
References
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