华北落叶松林平均木—优势木树高模型的研究  

Study on Average Height and Dominant Height Model of Larix principls-rupprechii

作　　者：王璞[1] 马履一[2] 段劼[2] 贾忠奎[2] 

机构地区：[1]河南科技学院,河南新乡453003 [2]北京林业大学省部共建森林培育与教育部重点实验室,北京100083

出　　处：《安徽农业科学》2013年第21期8963-8964,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]便于进行林分平均木、优势木数据转换,获取林分优势木信息。[方法]通过在塞罕坝机械林场获取的5个林龄,共178块临时样地的数据,对华北落叶松平均木和优势木树高相关关系进行研究。[结果]建立起平均木—优势木树高模型:DomH=2.162+0.98AvgH。通过模型可知,华木落叶松林林分优势木高要比林分平均木高高出近2 m。[结论]该模型便于在只取得了林分平均木高的情况下,换算得到林分优势木高。[ Objective ] It was convenient for data transformation between average height and dominant height. [ Method J In this paper, the da- ta of 178 temporary stand totally at five forest age level was used to study the correlation between average height and dominant height of Lar/x principls-rupprechii. [ Result] The paper established the average height and dominant height model ： DomH = 2. 162 ＋ 0.98AvgH. Based on the model, Dominant height of Larix principls-rupprechii was nearly two meters higher than average height. [ Conclusion] The model was conven- ient for getting the dominant height under the conditions of having average height only.

关 键 词：华北落叶松 林分平均木高 林分优势木高 

分 类 号：S791.22[农业科学—林木遗传育种]