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
Response of litter decomposition and related soil enzyme activities to different forms of nitrogen fertilization in a subtropical forest
TL;DR: In this article, two dominant litter types were chosen from Zijin Mountain in China: Quercus acutissima leaves from a late succession broad-leaved forest and Pinus massoniana needles from an early succession coniferous forest.
80
Soil carbon storage under simulated climate change is mediated by plant functional type
TL;DR: This article investigated the role of plant functional type (FT) on biomass and SOM responses to the long-term treatments by carefully sampling soil under patches of C3- and C4-dominated vegetation.
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Labile carbon and nitrogen additions affect soil organic matter decomposition more strongly than temperature
Qianru Li,Yuqiang Tian,Xinyu Zhang,Xingliang Xu,Huimin Wang,Yakov Kuzyakov,Yakov Kuzyakov,Yakov Kuzyakov +7 more
TL;DR: In this article, the authors investigated the effects of temperature on priming of SOM decomposition through changing microbial composition, adding 13 C-labeled glucose with or without NO 3 − or NH 4 + to a subtropical plantation soil in southern China and incubated the soil at 15°C and 25°C for 10 days.
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Microbial community changes in TNT spiked soil bioremediation trial using biostimulation, phytoremediation and bioaugmentation
Hiie Nõlvak,Jaak Truu,Baiba Limane,Marika Truu,Guntis Cepurnieks,Vadims Bartkevics,Jaanis Juhanson,Olga Muter +7 more
TL;DR: A 28-day laboratory pot experiment was carried out applying bioaugmentation using laboratory selected bacterial strains as inoculum, biostimulation with molasses and cabbage leaf extract, and phytoremediation using rye and blue fenugreek to study the effect of these treatments on TNT removal and changes in soil microbial community responsible for contaminant degradation as discussed by the authors.
79
Impact of agricultural management practices on soil carbon sequestration and its monitoring through simulation models and remote sensing techniques: A review
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TL;DR: In this paper, an increasing emphasis on devising suitable policies and practices for entrapment and storage of atmospheric CO2 to mitigate global warming to 2˚°C is presented.
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