薄山林场森林植被涵养水源价值评估

Evaluation of Forest Water Conservation in Boshan Forest Farm

根据森林资源清查数据、降雨量、森林植被蒸散量,采用水量平衡法计算了薄山林场森林植被的涵养水源量,用"影子工程法"计算薄山林场森林植被涵养水源的经济价值。结果表明:薄山林场森林植被调节水量达到0.29亿m3/a,涵养水源的总价值为2.78亿元/a,其中针叶林与栎类调节水量与涵养水源价值较大;单位面积森林调节水量与涵养水源的价值,针叶林最大,栎类最小。

Based on forestry statistics date, rainfall and forest vegetation evaporation, the amount of water conservation were calculated by water balance method to understand the value change of forest water conservation The values of conserve water sources were estimated by applying the shadow project approach. Results showed that the quantity of regulating water flow of Boshan Forest was 0.29×^10^8m3 and the values of regulating water flow was 2.78~ l0s yuan. The values of regulating water flow in coniferous forest and oak forest were higher than that of other forest in Boshan Forest. The coniferous forest supplied the maximum value per unit area, and yet the oak forest supplied the nfinimum value per unit area.