Abstract
As one component of ChinaFLUX, the measurement of CO2 flux using eddy covariance over subtropical planted coniferous ecosystem in Qianyanzhou was conducted for a long term. This paper discusses the seasonal dynamics of net ecosystem exchange (NEE), ecosystem respiration (RE) and gross ecosystem exchange (GEE) between the coniferous ecosystem and atmosphere along 2003 and 2004. The variations of NEE, RE and GEE show obvious seasonal variabilities and correlate to each other, i.e. lower in winter and drought season, but higher in summer; light, temperature and soil water content are the main factors determining NEE; air temperature and water vapor pressure deficit (VPD) influence NEE with stronger influence from VPD. Under the proper light condition, drought stress could decrease the temperature range for carbon capture in planted coniferous, air temperature and precipitation controlled RE; The NEE, RE, and GEE for planted coniferous in Qianyanzhou are −387.2 g C·m−2 a−1, 1223.3 g C·m−2 a−1, −1610.4 g C·m−2 a−1 in 2003 and −423.8 g C·m−2 a−1, 1442.0 g C·m−2 a−1, −1865.8 g C·m−2 a−1 in 2004, respectively, which suggest the intensive ability of plantation coniferous forest on carbon absorbing in Qianyanzhou.
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Global Carbon Project. Science Framework and Implementation. Earth System Science Partnership (IGBP, IHDP, WCRP, DIVERSITAS) Report No.1: Global Carbon Project Report No. 1 Canberra, 2003, 22–23
Goulden M L, Wofsy S C, Harden J W, et al. Sensitivity of boreal forest carbon balance to soil thaw. Science, 1998, 279: 214–217
Twine T E, Kustas W P, Norman J M, et al. Correcting eddy-covariance flux underestimates over a grassland. Agricultural and Forest Meteorology, 2000, 103: 279–300
Fang C, Moncrieff J B. The dependence of soil CO2 efflux on temperature. Soil Biology & Biochemistry, 2001, 33: 155–165
Zhang P C, Shao G F, Zhao G., et al. China’s forest policy for the 21st century. Science, 2000, 288: 2135–2136
Fang J Y, Chen A P, Peng C, et al. Changes in forest biomass carbon storage in China between 1949 and 1998. Science, 2001, 292: 2320–2322
Valentini R, De Angells P, Matteucci G, et al. Seasonal net carbon dioxide exchange of a beech forest with the atmosphere. Global Change Biology, 1996, 2: 199–207
Massman W J, Lee X. Eddy Covariance Flux corrections and uncertainties in long term studies of carbon and energy exchanges. Agricultural and Forest Meteorology, 2002, 113: 121–144
Baldocchi D D, Falge E, Gu L, et al. FLUXNET: A new tool to study the temporal and spatial variability of ecosystem-scale carbon dioxide, water vapor, and energy flux densities. Bulletin of the American Meteorological Society, 2001, 82: 2415–2434
Baldocchi D D. Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: Past, present and future. Global Change Biology, 2003, 9: 479–492
Cao M K, Yu G R, Liu J Y, et al. Multi-scale observation and cross-scale mechanistic modeling on terrestrial ecosystem carbon cycle. Sci China Ser. D-Earth Sci, 2005, 48(Supp I): 17–32
Greco S, Baldocchi D D. Seasonal variations of CO2 and water vapour exchange rates over a temperate deciduous forest. Global Change Biology, 1996, 2: 183–197
Law B E, Falge E, Gu L, et al. Environmental controls over carbon dioxide and water vapor exchange of terrestrial vegetation. Agricultural and Forest Meteorology, 2002, 113: 97–120
Liu Y F, Song X, Sun X M, et al. Seasonal variation of CO2 flux and its environmental factors in evergreen coniferous plantation. Sci China Ser D-Earth Sci, 2005, 48(Supp I): 123–132
Wen X F, Yu G R, Sun X M, et al. Soil moisture effects on the temperature dependence of ecosystem respiration in a subtropical pinus plantation of southeastern China. Agricultural and Forest Meteorology, 2006a (in press)
Wilczak J M, Oncley S P, Stage S A. Sonic anemometer tilt correction algorithms. Boundary-Layer Meteorology, 2001, 99: 127–150
Webb E K, Pearman G L, Leuning R. Correction of flux measurements foe density effects due to heat and water vapour transfer. Quarterly Journal of the Royal Meteorological Society, 1980, 106: 85–100
Wen X F, Yu G R, Sun X M, et al. Turbulence flux measurement above the overstory of a subtropical Pinus plantation over the hilly region in southeastern China. Sci China Ser D-Earth Sci, 2005, 48(Supp. I): 63–73
Michaelis L, Menten M L. Die Kinetik der Invertinwirkung. Biochem Z, 1913, 49: 333
Lloyd J, Taylor J A. On the temperature dependence of soil respiration. Functional Ecology, 1994, 8: 315–323
Yu G R, Wen X F, Sun X M, et al. Seasonal patterns of environmental control of ecosystem respiration in subtropical and temperate forests in China. Sci China Ser D-Earth Sci, 2005, 48(Supp I): 93–105
Carrara A, Janssens I A, Yuste J C, et al. Seasonal changes in photosynthesis, respiration and NEE of a mixed temperate forest. Agricultural and Forest Meteorology, 2004, 126: 15–31
Farquhar G D, Sharkey T D. Stomatal conductance and photosynthesis. Annual Review of Plant Physiology, 1982, 33: 317–345
Valentini R, Matteucci G, Dolman A J, et al. Respiration as the main determinant of carbon balance in European forests. Nature, 2000, 404: 861–865
Giardina C P, Ryan M G. Evidence that decomposition rates of organic carbon in mineral soil do not vary with temperature. Nature, 2000, 404: 858–861
Grace J, Rayment M. Respiration in the balance. Nature, 2000, 404: 819–820
Goulden M L, Munger J W, Fan S M, et al. Exchange of carbon dioxide by a deciduous forest: response to interannual climate variability. Science, 1996, 271: 1576–1578
Law B E, Kelliher F M, Baldocchi D D, et al. Carbon storage and fluxes in ponderosa pine forests at different developmental stages. Global Change Biology, 2001, 6: 613–630
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Liu, Y., Yu, G., Wen, X. et al. Seasonal dynamics of CO2 fluxes from subtropical plantation coniferous ecosystem. SCI CHINA SER D 49 (Suppl 2), 99–109 (2006). https://doi.org/10.1007/s11430-006-8099-3
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DOI: https://doi.org/10.1007/s11430-006-8099-3