Results 1 to 10 of about 3,482,440 (295)

Thermal adaptation of net ecosystem exchange [PDF]

Biogeosciences, 2011
Thermal adaptation of gross primary production and ecosystem respiration has been well documented over broad thermal gradients. However, no study has examined their interaction as a function of temperature, i.e.
W. Yuan, Y. Luo, S. Liang, G. Yu, S. Niu, P. Stoy, J. Chen, A. R. Desai, A. Lindroth, C. M. Gough, R. Ceulemans, A. Arain, C. Bernhofer, B. Cook, D. R. Cook, D. Dragoni, B. Gielen, I. A. Janssens, B. Longdoz, H. Liu, M. Lund, G. Matteucci, E. Moors, R. L. Scott, G. Seufert, R. Varner   +25 more
doaj   +14 more sources

Pan-Arctic modelling of net ecosystem exchange of CO2. [PDF]

Philos Trans R Soc Lond B Biol Sci, 2013
Net ecosystem exchange (NEE) of C varies greatly among Arctic ecosystems. Here, we show that approximately 75 per cent of this variation can be accounted for in a single regression model that predicts NEE as a function of leaf area index (LAI), air temperature and photosynthetically active radiation (PAR).
Shaver GR, Rastetter EB, Salmon V, Street LE, van de Weg MJ, Rocha A, van Wijk MT, Williams M.   +7 more
europepmc   +7 more sources

Universality of ecological memory for local and global net ecosystem exchange, atmospheric CO2, and sea surface temperature [PDF]

Scientific Reports
Modeling global net ecosystem exchange is essential to understanding and quantifying the complex interactions between the Earth’s terrestrial ecosystems and the atmosphere.
Allan Roy B. Elnar, Christopher C. Bernido   +1 more
doaj   +3 more sources

Spatially-integrated estimates of net ecosystem exchange and methane fluxes from Canadian peatlands [PDF]

Carbon Balance and Management, 2018
Background Peatlands are an important component of Canada’s landscape, however there is little information on their national-scale net emissions of carbon dioxide [Net Ecosystem Exchange (NEE)] and methane (CH4).
K. L. Webster, J. S. Bhatti, D. K. Thompson, S. A. Nelson, C. H. Shaw, K. A. Bona, S. L. Hayne, W. A. Kurz   +7 more
doaj   +2 more sources

Evaluating modeling approaches for estimating net ecosystem exchange in Canadian peatlands [PDF]

Scientific Reports
Peatlands are globally significant carbon reservoirs, yet models for peatland carbon cycling are often limited to the site level. To enable the prediction of carbon dioxide (CO2) fluxes in peatlands where no in situ measurements exist, machine learning ...
E. Kathryn Hettinga, Fereidoun Rezanezhad, Ali Reza Shahvaran, Mir Amir Mohammad Reshadi, Maria Strack, Kyle A. Arndt, Ian B. Strachan, June Skeeter, Jianghua Wu, Matthew Q. Morison, Haley Alcock, Oliver Sonnentag, Sara H. Knox, Rosemary Howard, Philippe Van Cappellen   +14 more
doaj   +2 more sources

Carbon dioxide net assimilation exchange in a young pecan nut orchard during the growth cycle [PDF]

Global Journal of Environmental Science and Management, 2023
BACKGROUND AND OBJECTIVES: Pecan nut trees (Carya illinoensis K), due to their condition as woody and long-living species, in addition to the contribution of nuts for consumption, may also have an essential role in assimilating carbon dioxide and ...
A. Zermeño-Gonzalez, E.A. Jimenez-Alcala, J.A. Gil-Marin, H. Ramirez-Rodriguez, M. Cadena-Zapata, A.I. Melendres-Alvarez   +5 more
doaj   +1 more source

Empirical Models of Respiration and Net Ecosystem Productivity and Their Applications in a Subtropical Coniferous Plantation in China

Atmosphere, 2023
Net ecosystem exchange (NEE), solar radiation (including photosynthetically active radiation PAR), and meteorological parameters were measured in a subtropical coniferous plantation in China during 2013–2016.
Jianhui Bai, Fengting Yang, Mingjie Xu, Huimin Wang   +3 more
doaj   +1 more source

O2:CO2 exchange ratios observed in a cool temperate deciduous forest ecosystem of central Japan [PDF]

Tellus: Series B, Chemical and Physical Meteorology, 2013
Detailed observations of O2:CO2 exchange ratios were conducted in a cool temperate deciduous forest located in central Japan. The exchange ratios of soil respiration and net assimilation were found to be 1.11±0.01 and 1.02±0.03 from soil ...
Shigeyuki Ishidoya, Shohei Murayama, Chikako Takamura, Hiroaki Kondo, Nobuko Saigusa, Daisuke Goto, Shinji Morimoto, Nobuyuki Aoki, Shuji Aoki, Takakiyo Nakazawa   +9 more
doaj   +1 more source

Modelling growing season carbon fluxes at a low-center polygon ecosystem in the Mackenzie River Delta

Arctic Science, 2023
A temporal upscaling study was conducted to estimate net ecosystem exchange (NEE) of carbon dioxide and net methane exchange (NME) for a low-center polygon (LCP) ecosystem in the Mackenzie River Delta, for each of the 11 growing seasons (2009–2019).
June Skeeter, Andreas Christen, Greg Henry   +2 more
doaj   +1 more source

Seasonal and diurnal variation in CO fluxes from an agricultural bioenergy crop [PDF]

Biogeosciences, 2016
Carbon monoxide (CO) is an important reactive trace gas in the atmosphere, while its sources and sinks in the biosphere are poorly understood. Soils are generally considered as a sink of CO due to microbial oxidation processes, while emissions of CO have
M. Pihlatie, Ü. Rannik, S. Haapanala, O. Peltola, N. Shurpali, P. J. Martikainen, S. Lind, N. Hyvönen, P. Virkajärvi, M. Zahniser, I. Mammarella   +10 more
doaj   +1 more source