| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Research Abstract |
A fine-scale vegetation transition model was developed based on the observation data from Mongolia, where slope aspect-dependent and discontinuous vegetation transition pattern is widely observed. The dynamics of plants' biomass and soil water content(SWC) with biological interactions are calculated in the meshed target space(res=90m). The"facilitation effect"among plants over soil water amplified the difference in SWC caused by the topography and was the key to generate the observed discontinuous vegetation pattern. By adding the herbivory effect with feasible parameters to this model, we could show the possible future projections for vegetation change under various scenarios with changing climate and livestock density. It tells that drastic and irreversible vegetation degradation, deforestation might occur at some critical point of decrease of precipitation and/or increase in livestock.
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