残留物管理育林法对杉木人工林物种多样性的恢复作用

根据在江西武功山林场定位研究的调查材料，对以残留物管理育林法和以传统育林法所培育的两种杉木林分，在物种多样性以及垂直结构等方面，进行了对比分析。结果表明，残留物管理育林法对杉木林地的物种多样性有着明显有恢复作用。以残留管理育林法所培育的林分，不仅其物种多样性指数已超过江西常绿阔叶林物种多样性指数的下限，而且还具备良好的垂直结构及较高的生境多样性。因此，在我国南方林区，全面推广残留物管理育林法，对这

AN EFFECTIVE WAY TO RECOVER SPECIES DIVERSITY OF CHINESE FIR PLANTATION IN SOUTHERN CHINARECIDUE MANAGEMENT CULTIVATION

By using the data derived from the permanent plots in Wugong Shan Forest Farm, Jiangxi Province, China, the author of this paper analyzed and contrasted the species diversity and vertical structure between two kind of Chinese fir(Cunninghamia lanceolata(Lamb)Hook) plantations cultured by different methods of Recidue Management Cultivation (RMC) and traditional cultivation. Consequently, the results show that the RMC method has a distinct effect on recovering species diversity of Chinese fir plantations in southern China. The Chinese fir plantations cultured by RMC method not only have the ideal vertical structure and habitat diversity but have their species diversity indexes beyond the lower limit of that of evergreen broad-leaved forsets in Jiangxi Province. Thus, it will be significant in conservation species diversity and sustainable utilization of forest land resource to popularize the method of Recidue Management Cultivation all-sidedly in southern China.