Will Recreation Demand for Land Limit Biofuels Production?

摘要

We use a CGE model to investigate the potential of second generation biofuels production under possibilities of land use conversion from natural areas to agricultural land in the U.S, considering the recreational value of forests. We introduce recreational benefits of natural forests through "household" production sectors for hunting and fishing, for wildlife viewing in reserved areas, and wildlife viewing in other forest areas, based on extensive data available in the U.S. about those activities. Wetest the model assessing the land use changes and welfare impacts from a U.S. climate policy scenario. The new approach resulted in similar land use change as earlier work where land conversion was limited by an elasticity based on observed land supplyresponse. The advantage of the new approach built here using recreation data is that it provides an obviously improved measure of welfare cost of policies that lead to land use change, because the preservation value of the land offsets the increased costof the policy due to the restriction on use. The results are sensitive to the representation of people's willingness to substitute other inputs for natural land in their recreation experience, parameter not being well investigated empirically. The maincontribution of the paper is not for its insights on biofuels potential but for the improved representation of welfare changes from models where the land supply response limits conversion.