Thermal adaptation of net ecosystem exchange
Journal Article
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· Biogeosciences (Online)
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- Beijing Normal Univ., Beijing (China). College of Global Change and Earth System Science; Univ. of Oklahoma, Norman, OK (United States). Dept. of Botany and Microbiology
- Univ. of Oklahoma, Norman, OK (United States). Dept. of Botany and Microbiology
- Beijing Normal Univ., Beijing (China). College of Global Change and Earth System Science; Univ. of Maryland, College Park, MD (United States). Dept. of Geography
- Chinese Academy of Sciences (CAS), Beijing (China). Research Network, Inst. of Geographic Sciences and Natural Resources Research
- Chinese Academy of Sciences (CAS), Beijing (China). State Key Lab. of Vegetation and Environmental Change, Inst. of Botany; Univ. of Oklahoma, Norman, OK (United States). Dept. of Botany and Microbiology
- Montana State Univ., Bozeman, MT (United States). Dept. of Land Resources and Environmental Sciences
- Univ. of Toledo, OH (United States). Dept. of Environmental Sciences
- Univ. of Wisconsin, Madison, WI (United States). Atmospheric and Oceanic Sciences Dept.
- Lund Univ. (Sweden). Dept. of Physical Geography and Ecosystem Analysis
- Virginia Commonwealth Univ., Richmond, VA (United States). Dept. of Biology
- Univ. of Antwerp, Wilrijk (Belgium). Dept. of Biology
- McMaster Univ., Hamilton, ON (Canada). School of Geography and Earth Sciences, and McMaster Centre for Climate Change
- Dresden Univ. of Technology (Germany). Inst. of Hydrology and Meteorology
- NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States). Biospheric Science
- Argonne National Lab. (ANL), Argonne, IL (United States). Climate Research Section, Environmental Science Division
- Indiana Univ., Bloomington, IN (United States). Atmospheric Science Program, Geography Dept.
- Institut National de la Recherche Agronomique (INRA), Champenoux (France)
- Washington State Univ., Pullman, WA (United States). Lab. for Atmospheric Research, Dept. of Civil and Environmental Engineering
- Aarhus Univ. (Denmark). Dept. of Arctic Environment, National Environmental Research Inst.
- Inst. for Agricultural and Forestry Systems in the Mediterranean, Via Cavour (Italy)
- ESS-CC, Alterra Wageningen UR, Wageningen (The Netherlands)
- US Dept. of Agriculture (USDA)., Tucson, AZ (United States). Southwest Watershed Research Center
- European Commission, Ispra (Italy). Joint Research Centre, Inst. for Environment and Sustainability
- Univ. of New Hampshire, Durham, NH (United States). Inst. for the Study of Earth, Oceans and Space and Earth Sciences
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. the thermal responses of net ecosystem exchange of carbon (NEE). Here in this study, we constructed temperature response curves of NEE against temperature using 380 site-years of eddy covariance data at 72 forest, grassland and shrubland ecosystems located at latitudes ranging from ~29° N to 64° N. The response curves were used to define two critical temperatures: transition temperature (Tb) at which ecosystem transfer from carbon source to sink and optimal temperature (To) at which carbon uptake is maximized. Tb was strongly correlated with annual mean air temperature. To was strongly correlated with mean temperature during the net carbon uptake period across the study ecosystems. Our results imply that the net ecosystem exchange of carbon adapts to the temperature across the geographical range due to intrinsic connections between vegetation primary production and ecosystem respiration.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Key Basic Research and Development Plan of China; National Science Foundation (NSF); USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1396247
- Journal Information:
- Biogeosciences (Online), Journal Name: Biogeosciences (Online) Journal Issue: 6 Vol. 8; ISSN 1726-4189
- Publisher:
- European Geosciences UnionCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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