Circadian rhythms regulate the environmental responses of net CO2 exchange in bean and cotton canopies [PDF]
, 2017 Studies on the dependence of the rates of ecosystem gas exchange on environmental parameters often rely on the up-scaling of leaf-level response curves ('bottom-up' approach), and/or the down-scaling of ecosystem fluxes ('top-down' approach), where one ...
Alday, Josu G. +19 more
core +4 more sources
Modeling of net ecosystem exchange and its components for a humid grassland ecosystem [PDF]
Journal of Geophysical Research: Biogeosciences, 2006 We measured the net ecosystem exchange (NEE) of a managed humid grassland in southwest Ireland from 2002 to 2004 with an eddy covariance (EC) system. In addition, a process‐based biogeochemical model (PaSim) incorporating land management practices such as grazing and grass harvesting was used to simulate the carbon dynamics. The modeled NEE of 2.6, 2.7
Lawton, Delphine +4 more
openaire +1 more source
Boreal forest CO2 exchange and evapotranspiration predicted by nine ecosystem process models: Intermodel comparisons and relationships to field measurements [PDF]
, 2001 Nine ecosystem process models were used to predict CO2 and water vapor exchanges by a 150-year-old black spruce forest in central Canada during 1994–1996 to evaluate and improve the models.
Amthor, Jeffrey S +12 more
core +2 more sources
Seasonal differences in the CO2 exchange of a short-hydroperiod Florida Everglades marsh [PDF]
, 2010 Although wetlands are among the world\u27s most productive ecosystems, little is known of long-term CO2 exchange in tropical and subtropical wetlands. The Everglades is a highly managed wetlands complex occupying \u3e6000 km2 in south Florida.
Jimenez, Kristine L. +3 more
core +1 more source
Upside-down fluxes Down Under: CO2 net sink in winter and net source in summer in a temperate evergreen broadleaf forest [PDF]
, 2018 Predicting the seasonal dynamics of ecosystem carbon fluxes is challenging in broadleaved evergreen forests because of their moderate climates and subtle changes in canopy phenology.
Barton, Craig V. M. +12 more
core +3 more sources
Geophysical Research Letters, 2023 The relative importance of temperature and water constraints on the tropical carbon cycle is an ongoing debate. Here we combine multiple independent tropical ecosystem carbon exchange simulations with satellite observations and show that the primary ...
Bin He, Xiaoming Xie, Lanlan Guo
doaj +1 more source
Ecological Indicators, 2023 Global climate change has greatly altered plant community composition and affected ecosystem carbon exchange of grasslands. However, the influences of long-term increasing temperature and precipitation on the composition of plant community and the ...
Guangyi Lv +4 more
doaj +1 more source
Assessing effects of permafrost thaw on C fluxes based on multiyear modeling across a permafrost thaw gradient at Stordalen, Sweden [PDF]
, 2014 Northern peatlands in permafrost regions contain a large amount of organic carbon (C) in the soil. Climate warming and associated permafrost degradation are expected to have significant impacts on the C balance of these ecosystems, but the magnitude is ...
Backstrand, K +5 more
core +2 more sources
Maximum carbon uptake rate dominates the interannual variability of global net ecosystem exchange
Global Change Biology, 2019 Terrestrial ecosystems contribute most of the interannual variability (IAV) in atmospheric carbon dioxide (CO2) concentrations, but processes driving the IAV of net ecosystem CO2 exchange (NEE) remain elusive. For a predictive understanding of the global
Zheng Fu +6 more
semanticscholar +1 more source
Seasonality in CO2 and H2O flux at an Eastern Amazonian Rain Forest [PDF]
, 2002 Previous studies of CO2 fluxes in Amazonia have suggested seasonal variation in net ecosystem exchange. We find little evidence of this seasonality at a new site in eastern Amazonia, despite the expectation that this site would be particularly sensitive ...
Anderson +49 more
core +1 more source