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| Yoosuke MATSUMOTO | |
| Chief of Ecophysiology Laboratory | |
| Forest Environment Division, | |
| Forestry and Forest Products Research Institute | |
| Ministry of Agriculture, Forestry and Fisheries | |
| Matsunosato-1, Kukizaki-Machi, Inashiki-Gun, Ibaragi 305, Japan | |
| Tel; +81-298-73-3211, Fax; +81-298-73-1542 | |
| E-mail: ymat@ffpri.affrc.go.jp |
26,673,000 Yen
(FY 1998; 8,714,000 Yen)
This study was planed under "Global Change Inpacts on Terrestrial Ecosystems in Monsoon Asia (TEMA) ", one of the core research of International Geosphere-Biosphere Programme (IGBP). Purposes of this study are to make clear physiological and morphological response of key species under natural environment condition, to make clear forest dynamics based on seed dispersal and survive, and to develop a long-term gap dynamics model.
We developed and analyzed a computer simulator (long-term gap dynamics model) for the forest dynamics based on the field measurements of long term and large area census plot of Ogawa Forest Reserve (OFR). The result of simulation for 400 years suggested that the component of tree species would change drastically by replacing the current present canopy trees with those whose recruitment rate are much higher. As a consequence of the replacement, the estimated total basal area (TBA) in the forest simulator decreased slightly. However, under the scenario in which the growth rate of all trees became higher by affected by any environmental change, the 400 years simulation generated the result of increasing TBA while the replacement in tree component happened as well as under without change.
Temperature deciduous forest, Long-term ecological research, Photosynthesis, Gap, Dynamics model