小陇山林区华山松在微环境变化下的邻体干扰特征比较研究

主要研究了小陇山林区天然华山松林分内华山松个体所处微环境与邻体干扰之间的相互耦合的关系。以华山松单株为样圆中心,摄取有效长(通过华山松个体大小判定)尺度内的微环境指标(本文以生境湿度表征),应用2种改进的干扰指数模型和微环境指标作梯度对比,得出华山松微环境特征与邻体干扰指数之间呈显著的负相关性。结果表明华山松群落中,华山松个体之间存在着的种内竞争同微环境的变化密切相关。林下微环境是影响邻体不可忽视的重要因素。

Comparative Study on Neighborhood Interference Characteristics of Pinus armandii in Xiaolongshan Forest Area in the Micro-environmental Changes

The study was conducted on coupling relationship between micro-environment in which Pinus ar-mandii individual and neighborhood interfering of natural Pinus armandii in Xiaolongshan forest area.Pinus armandii plant was taken as an sample round center,and micro-scale environmental index（humidity environment characterized by students in this paper） within effective length（determined by body size of Pinus armandii） was uptaken,through appli-cation of two kinds of improved interference index model and micro-environmental indexes for gradient contrast,there was a significant negative correlation between micro-environmental features and neighborhood interference index.The results showed that Pinus armandii communities had closely relationship between exist competition of individual and the micro-environmental changes.Forest micro-environment was an important and unignored factor affecting neighbor-hood.