Global warming accelerates soil heterotrophic respiration [PDF]
Nature Communications, 2023 Carbon efflux from soils is the largest terrestrial carbon source to the atmosphere, yet it is still one of the most uncertain fluxes in the Earth’s carbon budget.
Alon Nissan +6 more
doaj +7 more sources
A moisture function of soil heterotrophic respiration that incorporates microscale processes [PDF]
Nature Communications, 2018 Empirical moisture functions that describe the relationship between soil heterotrophic respiration and moisture introduce considerable uncertainty in soil CO2 flux predictions.
Zhifeng Yan +6 more
doaj +5 more sources
Soil heterotrophic respiration assessment using minimally disturbed soil microcosm cores [PDF]
MethodsX, 2018 Ex-situ measurement of soil respiration is usually done with highly disturbed samples that may confound the interpretation and extrapolation of results.
Louis-Pierre Comeau +3 more
doaj +4 more sources
Soil heterotrophic respiration repressed by drought stress more than soil autotrophic respiration in Stipa breviflora desert steppe, China [PDF]
Scientific ReportsQuantification of soil carbon emissions in desert steppes is a key issue in determining the carbon budget in arid regions. However, the changes in and driving mechanisms of soil respiration and its components in response to drought in ecosystems under ...
Chunxue Han, Zhiqiang Sun, Haigang Li
doaj +3 more sources
Seasonal and interannual variations of soil heterotrophic respiration and autotrophic respiration in subtropical forests of southeast China: independent process-based models [PDF]
Geoscience LettersSoil respiration consists of two distinctive components: heterotrophic respiration (decomposition of soil organic matter) and autotrophic respiration (CO2 production from root system), which are driven by different factors.
Yibo Yan +3 more
doaj +2 more sources
Nonlinear microbial thermal response and its implications for abrupt soil organic carbon responses to warming [PDF]
Nature CommunicationsMicrobial carbon use efficiency (CUE) is a key microbial trait affecting soil organic carbon (SOC) dynamics. However, we lack a unified and predictive understanding of the mechanisms underpinning the temperature response of microbial CUE, and, thus, its ...
Kailiang Yu +11 more
doaj +2 more sources
Responses of Soil Respiration and Ecological Environmental Factors to Warming and Thermokarst in River Source Wetlands of the Qinghai Lake Basin [PDF]
BiologyGlobal climate warming has led to the deepening of the active layer of permafrost on the Tibetan Plateau, further triggering thermal subsidence phenomena, which have profound effects on the carbon cycle of regional ecosystems.
Yanli Yang +6 more
doaj +2 more sources
Comparing an exponential respiration model to alternative models for soil respiration components in a Canadian wildfire chronosequence (FireResp v1.0) [PDF]
Geoscientific Model Development, 2021 Forest fires modify soil organic carbon and suppress soil respiration for many decades after the initial disturbance. The associated changes in soil autotrophic and heterotrophic respiration from the time of the forest fire, however, are less well ...
J. Zobitz +5 more
doaj +1 more source
Rainfall intensification increases the contribution of rewetting pulses to soil heterotrophic respiration [PDF]
Biogeosciences, 2020 Soil drying and wetting cycles promote carbon (C) release through large heterotrophic respiration pulses at rewetting, known as the “Birch” effect. Empirical evidence shows that drier conditions before rewetting and larger changes in soil moisture at ...
S. Manzoni +7 more
doaj +1 more source
Ecological Processes, 2021 Background The carbon pools of forest soils play a vital role in global carbon sequestration and emissions. Forest management can regulate the sequestration and output of forest soil carbon pools to a certain extent; however, the kinetics of the effects ...
Tairui Liu +4 more
doaj +1 more source