闽西北天然杉阔混交林杉木及其伴生树种种群动态研究

Study on population dynamics of Chinese fir and its associated tree species in natural Chinese fir-and-broad-leaved mixed forest in Northwest Fujian.

采用立木级存活数据、存活曲线以及数量动态等方法对闽西北天然杉阀混交林杉木及其伴生树种木荷和丝栗栲的种群动态进行研究。结果表明,木荷和丝栗栲种群立木级结构齐全,属于成熟种群,林下幼苗和幼树较多,属于增长种群;杉木种群立木级结构齐全,属于成熟种群,林下幼苗和小树数量较少,属于衰退种群。

Survivorship data of tree class,size-survivorship curves and quantitative dynamics are used to analyze population dynamics of Cunninghamia lanceolata, Schima superba and Castanopsis fargesii in natural Chinese fir-and-broad-leaved mixed forest. The results show that as the result of complete tree class, populations of Schima superba and Castanopsis fargesii belong to ripe populations;because of many seedlings and small sapling under canopy, populations of Schima superba and Castanopsis fargesii also belong to increasing populations;because of complete tree classes,and seldom seedlings and small sapling under canopy,population of Cunninghamia lanceolata belongs to a ripe population and a declining population.