侧柏水土保持林林分结构类型的研究

通过对侧柏林分结构特性、林地立地条件、林分密度的研究分析，证实了植被盖度、林地立地条件、林分密度对土壤侵蚀有重要影响。采用挑选主导因子分析的方法，筛选出郁闭度、草本盖度、灌木盖度三个主导因子，并将其林分划分出高结构型、高中结构型、中结构型、中低结构型、低结构型５个水土保持结构类型，为河南省太行山区营造水土保持林提供了依据。

Study on the Forest Structure Type of Water Conservation Forest of platycladus orientalis

According to the study on the characteristics of forest structure, locality quality and forest density, it was found out that plant coverage, locality quality and forest density had signif- icant effect on soil erosion. The selection principal factor analysis was adopted and 3 principal fac- tors, namely, canopy density, grass coverage and shrub coverage were screened out, on which 5 types of water conservation forest were classified, including high structure, high-medium structure, medium structure, medium-low structure and low structure. We intended to provide base with this paper for the aforestation of water conservation forest in Taihang mountainous areas of Henan.