为探讨杉木人工林乔木层的生物生产力,我们对在龙胜县里骆林场所建立的三个定位观测样地,在进行了生长量和生物量调查研究的基础上,从定量研究的角度,探明该林区不同立地杉木人工林乔木层的生物量和生产力的差异程度以及其中物质的积累和分配规律;同时,结合杉木生长与内外相关因子的分析,试图找出不同立地决定杉木速生丰产的内外因素,为林业集约经营提供科学依据。 In order to explore the biological productivity of plantation tree layer in the Chinese fir plantation, we conducted a survey on the growth and biomass of the three observation sites set up in Luohuolin in Longsheng County. From the perspective of quantitative research, The differences of biomass and productivity in the arbor layer of Cunninghamia lanceolata plantation in different habitats in the forest area and their laws of accumulation and distribution of matter were also explored. Combining with the growth of Chinese fir and the analysis of relevant factors both inside and outside, Of internal and external factors, provide a scientific basis for intensive management of forestry.