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A Model for Predicting the Effect of Increasing Air Temperature on the Net Photosynthetic Rate of Quercus mongolica Stands

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2007, v.30 no.1, pp.1-7




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Abstract

A model was developed to predict the effects of rising air temperature on net photosynthetic rateof Quercus mongolica stands at Mt. Paekcheok-san, Kangwon-do in South Korea. The PFD (Photon flux density) meteorological station and gas exchange or release responses of each tree component were measured. Using these data, we simulated the effects of increases in mean annual air temperatures above current conditions on annual CO2 budget of Q. mongolica stands. If mean annual air temperature is increased by 0.5, 1.0, 1.5, 2.0, 2.5 or 3.0℃, annual net photosynthetic rate will be increased by 8.8, 12.8, 14.5, 12.6, 9.2 and 1.0 ton CO2 ha-1 yr-1, respectively. Simulations indicate that changes in air temperature will have a major impact on gas exchange and release in Q. mongolica

keywords
Net photosynthetic rate, Quercus mongolica, Rising air temperature, Simulation modelIhm, Byung-Sun et al. J. Ecol. Field Biol. 30 (1) 2of the annual precipitation occurs between June and September. In Q. mongolica communities, Stephanandra incisa, Net photosynthetic rate, Quercus mongolica, Rising air temperature, Simulation modelIhm, Byung-Sun et al. J. Ecol. Field Biol. 30 (1) 2of the annual precipitation occurs between June and September. In Q. mongolica communities, Stephanandra incisa

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(2006) Received November 7,

Journal of Ecology and Environment