不同林用地土壤抗蚀性能研究

Study on erosion resistance of different land use

为了解不同林业用地的生态功能 ,对浙江省湖州市 3种天然林和 5种人工商品林地土壤抗蚀性进行了分析。结果表明 :马尾松林、常绿阔叶林和针阔混交林 3种天然林土壤抗蚀性能均较理想 ,三者相比 ,以常绿阔叶林地最强 ,针阔混交林其次 ,马尾松林地相对较弱。5种人工商品林地中 ,早竹和毛竹林土壤抗蚀能力最强 ,接近或超过马尾松林地 ;杉木和青梅林地土壤抗蚀能力最弱 ,容易产生水土流失 ,应加强防治措施 ;茶园土壤抗侵蚀能力也不够理想 ,有待于进一步提高。图 3表 2参 1

To understand ecological function of different land use,the erosion resistance of 3 kinds of natural forest and 5 kinds of planted ocmmercial forest in Huzhou,Zhejiang has been studied.Its found that 3 kind of natural forest are of ideal erosion resistance,broad leaf forest is among the best and then the mixture forest of needle tree and broad leaf tree,Pinus is the weakest.Comparison on 5 kinds of planted commercial forest,soil erosion resistance of  Phyllostachys praecox is the strongest,which almost equal to or stranger than that of Pinus massoniana.The weakest ones are Chinese fir and Prunus mume.Erosion is easy to occur in these two kinds of forest,the prevent measure should be carry out.The erosion resistance of tea forest is not good enough.