杉木人工林竞争指数及单木生长模型的研究

Study of Competitive Index and Individual Growing Model of Chinese Fir Plant Population

用45块杉木人工林固定标准地每木定位资料,对林木间的竞争与生长关系进行了研究,选用简单竞争指数建立了与距离有关的单木生长模型。同时,还分析了简单竞争指数的变化规律,建立了径阶平均竞争指数预估模型,为把单木过渡到全林分的整体化生长模型的研究提供了一条途径。

With the data collected from 45 fixed plots of Chinese fir plantation, the relations between growth and competition among trees have been discussed and individual growing models which contain simple competitive index and distance have been established, and the variation pattern of simple competitive index has also been analysed, the mean competitive index predictive models of diameter class have been set up, providing an acess to the research of total growing models which transit from the individual to whole stands.