首页|Cost-effectiveness analysis of subsidy schemes for industrial timber development and carbon sequestration in Japanese forest plantations
Cost-effectiveness analysis of subsidy schemes for industrial timber development and carbon sequestration in Japanese forest plantations
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This study uses simulations to investigate the effects of implementing two different Japanese forestry subsidy systems on timber production and carbon stock, and examines the consequences for harvesting strategies. An existing Local Yield Table Construction System (LYCS), a wood conversion algorithm, and a harvesting cost model were used in the simulations to test the applicability of different subsidies to the thinning of stands. Using forest inventory data collected by local government staff, simulation output was used to calculate forestry profits,carbon stocks, subsidies, the amount of labor required, and the cost effectiveness of investing in subsidies. By comparing the output of simulations based on two scenarios, we found that both the clear-cutting area and the amount of harvested timber were larger under Scenario 2, in which the rules governing subsidy allocations are more relaxed, than under Scenario 1, in which the rules are more restrictive. Because the harvested timber under Scenario 1 was mainly produced by clear-cutting, the forestry profits and the subsidy predicted in the early period of the simulation, were larger under Scenario 1 than under Scenario 2. In contrast, the carbon stock was larger under Scenario 2 than under Scenario 1. The simulation model is likely to be useful for improving Plan-Do-Check-Act cycles implemented in Japanese forest management systems.
carbon stockforestry profitssubsidytimber production
Laboratory of Global Forest Environmental Studies,Graduate School of Agricultural and Life Sciences,the University of Tokyo,1-1-1 Yayoi,Bunkyo-ku,Tokyo 113-8657,Japan
Forestry and Forest Products Research Institute,1 Matsunosato,Tsukuba 305-8687,Japan
Laboratory of Forest Management,Graduate School of Agricultural and Life Sciences,University of Tokyo 1-1-1 Yayoi,Bunkyo-ku,Tokyo 113-8657,Japan
Research Fellowships from the Ministry of Land,Infrastructure,Transport and Tourism
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