金沟岭林场主要森林类型林分更新比较研究  

Comparison Study on Regeneration of the Three Types of Forest in Jingouling Forest Farm

作　　者：李婷婷[1] 王俊峰[2] 郑小贤[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]西南林业大学,昆明650224

出　　处：《林业资源管理》2009年第3期81-84,共4页Forest Resources Management

基　　金：国家"十一五"科技支撑课题(2006BAD03A0804)

摘　　要：以吉林省汪清林业局金沟岭林场的阔叶红松原始林、阔叶红松过伐林与人天混落叶松林为研究对象,采用方差/均值比率法为主的聚集度计算方法对林分更新种的数量特征和分布格局进行研究。结果表明:阔叶红松原始林更新苗最多,过伐林次之,人天混落叶松林最少;阔叶红松原始林与过伐林的更新幼苗大小级结构均属于稳定型种群,人天混落叶松林更新幼苗大小级结构属于下降型种群;3种森林类型的幼苗幼树的分布格局均为聚集分布,聚集程度由强到弱为:过伐林>人天混落叶松林>原始林。该研究可为过伐林和人工林的"近自然化"经营提供经验与依据。The research objects are primitive broad- leaved Korean Pine, over- cutting forest and artificial- natural larch mixed forest in Jingouling Forest Farm, Wangqing Forest Bureau, Jilin Province. The investigation data are complied for the variance/average value ratio law and other kinds of aggregation index. We found that the number of regeneration seedlings in primitive forest is the most, the over - cutting forest is the second, the artificial - natural mixed is the least. The size - class structure of the natural regeneration seedlings both in the primitive forest and in the over- cutting forest belongs to the stable structures of the population, the artificial and natural larch mixed stand belongs to the declined structure of the population. All of the spatial patterns of seedlings in the three forest types are aggregate distributions.And by the degree of aggregate distribution the highest of the three forest types is the over - cutting forest, the artificial - natural mixed forest comes second, the primitive forest third. This study provides the basis for the natural management of artificial forest.

关 键 词：原始林 过伐林 人天混落叶松林 更新 分布格局 

分 类 号：S754[农业科学—森林经理学]