Results 41 to 50 of about 26,094 (223)

Impact of droughts on the carbon cycle in European vegetation : a probabilistic risk analysis using six vegetation models [PDF]

open access: yes, 2014
Peer reviewedPublisher ...
Balkovi, J.   +15 more
core   +11 more sources

Controls on ecosystem respiration of carbon dioxide across a boreal wetland gradient in Interior Alaska [PDF]

open access: yes, 2012
Thesis (M.S.) University of Alaska Fairbanks, 2012Permafrost and organic soil layers are common to most wetlands in interior Alaska, where wetlands have functioned as important long-term soil carbon sinks.
McConnell, Nicole A.
core   +1 more source

Bomb-14C analysis of ecosystem respiration reveals that peatland vegetation facilitates release of old carbon [PDF]

open access: yes, 2009
The largest terrestrial-to-atmosphere carbon flux is respired CO<sub>2</sub>. However, the partitioning of soil and plant sources, understanding of contributory mechanisms, and their response to climate change are uncertain.
A.E. Fallick   +90 more
core   +1 more source

Asymmetric warming significantly affects net primary production, but not ecosystem carbon balances of forest and grassland ecosystems in northern China [PDF]

open access: yes, 2015
We combine the process-based ecosystem model (Biome-BGC) with climate change-scenarios based on both RegCM3 model outputs and historic observed trends to quantify differential effects of symmetric and asymmetric warming on ecosystem net primary ...
Axmacher, JC, Feng, J, Sang, W, Su, H
core   +1 more source

Effects of forest age on soil autotrophic and heterotrophic respiration differ between evergreen and deciduous forests. [PDF]

open access: yesPLoS ONE, 2013
We examined the effects of forest stand age on soil respiration (SR) including the heterotrophic respiration (HR) and autotrophic respiration (AR) of two forest types. We measured soil respiration and partitioned the HR and AR components across three age
Wei Wang   +4 more
doaj   +1 more source

Hot-Moments of Soil CO2 Efflux in a Water-Limited Grassland [PDF]

open access: yes, 2018
The metabolic activity of water-limited ecosystems is strongly linked to the timing and magnitude of precipitation pulses that can trigger disproportionately high (i.e., hot-moments) ecosystem CO2 fluxes.
Curiel Yuste, Jorge   +6 more
core   +3 more sources

Soil CO2 efflux in an old-growth southern conifer forest (Agathis australis) – magnitude, components and controls [PDF]

open access: yesSOIL, 2016
Total soil CO2 efflux and its component fluxes, autotrophic and heterotrophic respiration, were measured in a native forest in northern Aotearoa–New Zealand. The forest is dominated by Agathis australis (kauri) and is on an acidic, clay rich soil.
L. Schwendenmann, C. Macinnis-Ng
doaj   +1 more source

Terrestrial and fluvial carbon fluxes in a tropical watershed: Nyong basin, Cameroon [PDF]

open access: yes, 2009
The Nyong watershed, with an area of 27 800 km2 and a mean annual discharge of 390 m3 s−1, is the second largest river in Cameroon. The Nyong watershed serves as an outstanding study area for the examination of carbon fluxes in humid tropical ...
Boeglin, Jean-Loup   +6 more
core   +2 more sources

Heterotrophic and Autotrophic Soil Respiration under Simulated Dormancy Conditions

open access: yesOpen Journal of Forestry, 2015
Carbon cycling research has increased over the past 20 years, but less is known about the primary contributors to soil respiration (i.e. heterotrophic and autotrophic) under dormant conditions. It is understood that soil CO2 effluxes are significantly lower during the winter of temperate ecosystems and assumed microorganisms dominate efflux origination.
Daniel Beverly, Scott Franklin
openaire   +2 more sources

Effects of simulated acid rain on soil respiration and its component in a mixed coniferous-broadleaved forest of the three gorges reservoir area in Southwest China

open access: yesForest Ecosystems, 2019
Background Soil respiration in forest ecosystems is an important part of the forest carbon (C) cycle. Studying the variation patterns of soil respiration under acid rain conditions is critically important for understanding forest C balance and performing
Yifan Li   +3 more
doaj   +1 more source

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