作　　者： ; ; ; ; ; ;

机构地区： 中南林业科技大学

出　　处： 《中南林业科技大学学报》 2010年第12期23-27,共5页

摘　　要： 选择包含树木大小、距离和空间分布等多方面的信息的竞争模型对林分结构分析和优化经营起着重要的作用。在Hegyi模型(1974)的基础上,通过分析其优劣研究该模型的改进方法,并应用于广东湛江红树林林分的空间结构分析和优化模型的建立。实例研究表明,改进的竞争模型除保留包含树木大小、距离和空间分布等多方面的信息及简单直观,容易测算,便于应用等特征外,其模型分析数值范围在经营目标中更易于表达,增加了相邻木的空间结构单元信息,使林木竞争关系的描述有了进一步扩展,同时消除了与胸径和距离计算单位的依赖性和相关性,能更好地描述林木间的竞争关系。 It is important for Mangrove stand＇s structure analysis and optimal management to select a competition model which include irnformations of tree size,tree distance and spatial distribution etc.Based on Hegyi model（1974）,an improved model was applied to analyze the spatial structure of Mangrove stand in Zhangjiang,Guangdong.and an optimal model for the stand was set up.The studying results indicate that besides the merits of abundant imformation,direct-viewing,easy to calculate,and convenient to apply,the improved competition model had more advantages in such aspects as： its numerical scope was more easily to express for the business goal,it increased the spatial structure unit imformations of neighboring trees and made on expanding description on relationship of tree competition,and at the same time,eliminated the dependency and pertinency between DBH and tree distance Unit.Therefore,the improved model can better describe the compttition relations between the trees.

关 键 词： 模型 林分空间结构 改进方法 竞争分析

领　　域： [农业科学] [农业科学] [自动化与计算机技术] [自动化与计算机技术]