水库库区山地封山育林效益分析

Analysis on Effect of Forest Conservation in Hilly Land around Reservoir Basin

对天台县里石门水库８ａ封山育林效益分析结果表明：通过封山育林，使森林植被得到保护，林种结构发生变化，使森林复盖率从６３．０％提高到９３．６％；封山育林与人工造林相比，其总投资远远低于人工造林（它们之间约为１∶７３），库区封山育林，还能发挥保持水土、涵养水源的作用，提高库区的生态效益。

Analysis on result of 8 years forest conservation in Lishimen Reservoir of Tiantai, Zhejiang province showed that forest cover could be protected, structure of forest species changed, forest cover increased from 63.0% to 93.6% after forest conservation. Total investment was lower than man-made forest(ratio about 1∶73). It had also advantages like water and soil conservation, hcad water conservation and increase of ecological effect in reservoir basin.