炼山干扰对米槠林分布格局的影响 Ⅰ.主要树种分布格局的分析方法  

Effects of Slash-and-Burning Practice on Spatial Pattern in Castanopsis carlesii Community I Main population method of analysis of spatial pattern

作　　者：肖立生 游水生[2] 孙邦均 

机构地区：[1]福建省武平县林业局,福建武平364300 [2]福建林学院资源与环境系,福建南平353001 [3]福建省福鼎市林业局,福建福鼎355200

出　　处：《福建林学院学报》2000年第1期79-81,共3页Journal of Fujian College of Forestry

基　　金：福建省自然科学基金!( C940 0 5 )

摘　　要：应用频次分布法和4种扩散指数法(包括扩散系数C、聚集度指标I、Morisita分散指标Iδ、Cassie.R.M指标CA)对福建武平帽布米槠林炼山前后6种主要树种分布格局进行比较研究.结果表明这6种主要树种炼山前后的空间分布型均符合二项分布(聚集分布).炼山后米槠种群(除了Iδ、CA和X/X公式外)、杉木种群、木荷种群、刨花楠种群和栲树种群聚集强度都不同程度增加,而中华杜英种群除了指标Iδ聚集强度增加外,其余公式炼山后聚集强度都呈下降趋势.Frequency distribution models and five aggregate indices (including C,I,I\-δ,C\-A and X/\{X\}) were used to analyze spatial pattern of main tree populations in Castanopsis carlesii community before and after prescribed burning in Maobu area, Wuping, Fujian The results showed that spatial patterns of six main trees population conformed to negative binomial distribution Compared with the community before burning, the aggregation intensity of the Castanopsis carlesii population, Schima superba population, Cunninghamia lanceolata population,Machilus pauhoi population and Castanopsis fargesii population of reestablished community were strengthened, except that I\-δ、C\-A and X/\{X\} of Castanopsis carlesii population declined In contrast, the aggregation intensity of Elaeocarpus chinensis population declined, except that Iindex increased

关 键 词：米槠林 主要树种 炼山后 分布格局 

分 类 号：S792.17[农业科学—林木遗传育种]