Study on Ecological Protective Functions of Water Conservation Forest Managed with Different Measurements

The ecological protective functions of water conservation forest, which had managed by different technological measures were studied in Wu Tai mountain,Shanxi Province. The results showed that: the canopy interception ratio was the highest in Pinus tabulaeformis pure forest and the lowest in Betula platylla pure forest.the waterholding capacity was the highest in coniferous and broadleaved mixed forests soil, follwed by that in the broadleved forest soil, and was the lowest in coniferous plantation soil. The water infiltration ratio in broadleaved forest soil was higher than that in coniferous and broadleaved mixed forests soil. The soil improvement effect was obvious in shrub forest after hill closure. The tree increment after treatment by tending measure was higher than by close the land and all close the land measures. The ecological protection functions varied in different technological measures. Different manage patterns should chosen according to the forest stand, the forest structure and the vegetation tapes.