Results 121 to 130 of about 3,718 (208)

Multiple models and experiments underscore large uncertainty in soil carbon dynamics [PDF]

open access: yes, 2018
Soils contain more carbon than plants or the atmosphere, and sensitivities of soil organic carbon (SOC) stocks to changing climate and plant productivity are a major uncertainty in global carbon cycle projections.
Abramoff, R   +18 more
core   +1 more source

Planting of nitrogen-fixing shrubs promote soil carbon sequestration by increasing mineral-associated organic fraction

open access: yesGeoderma
Nitrogen-fixing shrubs have been planted worldwidely due to their excellent performances in soil improvement and economic benefits. However, their role and mechanisms on soil organic carbon (SOC) sequestration are unclear.
Nan Huang   +5 more
doaj   +1 more source

Legume cover crops sequester more soil organic carbon than non-legume cover crops by stimulating microbial transformations

open access: yesGeoderma
Cover crops are one of the climate-smart agricultural practices used to increase soil organic carbon (SOC) sequestration. However, the SOC sequestration potential and underlying mechanisms under different cover crops, especially in orchard agroecosystems,
Qijuan Hu   +10 more
doaj   +1 more source

Arbuscular mycorrhizal fungi communities and glomalin mediate particulate and mineral-associated organic carbon formation in grassland patches

open access: yesCommunications Earth & Environment
Arbuscular mycorrhizal fungi stimulate particulate and mineral-associated organic carbon formation and stabilization through hyphae residue, glomalin-related soil proteins gluing, and mycelium entangling.
Deng Ao   +5 more
doaj   +1 more source

Microbial necromass carbon dominates the accumulation of soil organic carbon in bedrock-exposed areas of karst regions

open access: yesGeoderma
Bedrock exposure alters the stability of soil organic carbon (SOC) in karst ecosystems; however, the responses of plant- and microbial-derived carbon—key indicators for assessing SOC stability—to bedrock exposure rates remain unclear. To address this, we
Zhiyong Zhang   +7 more
doaj   +1 more source

Soil organic carbon accumulation mechanisms in soil amended with straw and biochar: entombing effect or biochemical protection?

open access: yesBiochar
Converting crop residues into biochar and subsequently incorporating it into soils is a promising strategy to improve carbon sequestration in agroecosystems.
Yuhan Yuan   +8 more
doaj   +1 more source

Methyl-compound use and slow growth characterize microbial life in 2-km-deep subseafloor coal and shale beds [PDF]

open access: yes, 2017
The past decade of scientific ocean drilling has revealed seemingly ubiquitous, slow-growing microbial life within a range of deep biosphere habitats. Integrated Ocean Drilling Program Expedition 337 expanded these studies by successfully coring Miocene ...
Dawson, Katherine S.   +6 more
core   +1 more source

Earthworms act as biochemical reactors to convert labile plant compounds into stabilized soil microbial necromass. [PDF]

open access: yesCommun Biol, 2019
Angst G   +7 more
europepmc   +1 more source

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