福建武平米槠种群生态空间分布规律的研究

本文应用Ｒ尺度法对福建武平米槠种群空间分布进行分析，结果表明米槠种群分布格局及其动态均为聚集分布；种群分布格局动态随立木级增大聚集度越来越低．

福建武平帽布火烧前米槠种群动态分析

根据福建武平帽布火烧前米槠群落生态现状系统调查资料，运用立木级结构对米槠种群结构、分布格局及米信与其它植物种间关系进行分析结果表明：米槠种群立木级结构和存活曲线呈增长型，分布格局为负二项分布，米储与其它植物正联结种对有５２对、负联结种对９７对．

格氏栲自然保护区米槠种群直径结构规律研究

对福建三明格氏栲自然保护区的米槠林种群直径分布进行调查研究,应用5种概率分布规律对米槠、木荷、杉木、石栎4个主要树木种群的直径结构进行拟合,比较不同类型的拟合效果,分析其直径分布结构特征,预测各径阶株数,为该区域米槠林经营管理和森林调查等提供参考依据。

Variation of SPAD values in uneven-aged leaves of different dominant species in Castanopsis carlessi forest in Lingshishan National Forest Park

The greenness （SPAD） of uneven-aged leaves of dominant species in the Castanopsis carlessi forest at different altitude gradients in Lingshishan National Forest Park, Fujian Province, China were measured by using portable chlorophyll meter SPAD-502. In addition, the correlation between SPAD value and the concentration of chlorophyll and foliar nitrogen was also investigated. Significant variations in SPAD values were found between the uneven-aged leaves of different dominant species and different altitude gradients. Regression analysis showed that SPAD value was significantly correlated with the concentration of chlorophyll and the content of foliar nitrogen, indicating that SPAD value could be indicators for foliar chlorophyll and nitrogen. It is suggested that SPAD meter is a useful tool for forest assessments in decision-making and operational nutrient management programs.