北京地区侧柏人工林林木直径分布模型研究  

Study on tree diameter distribution model of Platycluadus orientalis plantation in Beijing

作　　者：陈英[1] 杨华[1] 赵浩彦[1] 李伟 王金增 付雨龙[1] 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083 [2]北京市林业勘查设计院,北京100714

出　　处：《中南林业科技大学学报》2012年第9期59-64,共6页Journal of Central South University of Forestry & Technology

基　　金：林业公益性行业科研专项(201104051)

摘　　要：林木直径分布是林分测量和开展森林经营活动最基础的信息。本研究以北京地区侧柏人工林59块样地调查数据为基础,有针对性选择了8种直径分布函数(线性、对数、二次、三次、乘幂、指数、逻辑斯蒂和威布尔函数)进行模拟和检验,结果表明,威布尔分布模型较好地表达了北京地区侧柏人工林的直径分布结构,拟合效果最好,在此基础上建立了weibull分布参数的预估方程,预测林分理论直径分布,为侧柏人工林的科学经营提供理论依据。Diameter distribution of forest tree is a key information for forest measurement and forest management activity.Based on the survey data of 59 sample plots of Platycluadus orientalis plantation in Beijing,adopting eight kinds of diameter distribution functions（linear,logarithmic,quadratic,cubic,power,exponential,logistic and Weibull）,the sample plots＇ diameter distribution were ？simulate and examined.The results indicate that Weibull distribution model was the best one among the several models which can express the diameter distribution structure and the fitting effect was the best.Based on this,the prediction equation of Weibull distribution parameter was set up,and the diameter distribution in theory was forecasted,thus providing a theoretical basis for scientific management of Platycluadus orientalis plantation.

关 键 词：直径分布模型 侧柏人工林 北京地区 

分 类 号：S788[农业科学—林学]