湖州市封山育林林分特征及其效益

浙江省湖州市丘陵地区封山育林7年,按原造林地类型不同,可划分为露岩、荒山和疏林封山类型。作者把封山育林7年的林分与封山育林20年的林分加以对照,论述了各封山类型林分的树种组成、群落结构特征、演替规律和生物产量。实践证明:封山育林是一种成本低、效果好、能迅速恢复森林植被的行之有效的营林手段。

Stand Characters and Benefits in Closing the Land for Reforestation Areas of Huzhou City

Based on the different original forest land types, the hill countries of Huzhou City Zhejiang Province, which have been 7 years of closing the land for reforestation, can be divided into three closing hill types of bare rock, barren hill and open forest. The authors compare the stands which have closed hill 7 years with the stands which have closed hill 20 years, and discuss the tree species, community structural characters, succession patterns and biomass. The facts show that closing the land for reforestation is an effective messure with low cost, good result and to re-cove quickly forest vegetation.