金沟岭林场主要森林类型林分更新比较研究.pdfVIP

2009 6 J ne 2009 3 FOREST RESOURCES MANAGEMENT No3 1 2 1 李婷婷 , 王俊峰 , 郑小贤 ( 1 , 100083; 2, 650224) : 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 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 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 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 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 : 原始林; 过伐林; 人 混落叶松林; 更新; 分布格局 : S754 : A : 1002- 6622( 2009) 03- 0081- 04 Comparison Study on Regeneration of the Three Types of Forest in Jingouling Forest Farm 1 2 1 LI Tingting , WANG J nfeng , ZHENG Xiaoxian ( 1T he K ey L aborat ory f or S ilv icul t ure and Conser v ation of M i nistry of Ed ucati on , Beij i ng Forestry Univ ersi ty , Beij i ng 100083, Chi na 2So uth west Forestry Univer si ty , K un ming 650224, Chi na) Abstract:T he research objects are primitive broad- leaved Korean Pine, over- c tting forest and arti ficial - nat ral larch mixed forest in Jingo ling Forest Farm, Wangqing Forest B rea , Jilin ProvinceT he investigation data are complied for the variance/ average val e ratio law and other kinds of aggregation indexWe fo nd that the n mber of regeneration seedlings in primitive forest is the most, the over- c tting forest is the second, the artificial- nat ral mixed is the leastT he size- class str ct re of the nat ral regeneration seedlings both in the primitive forest and in the over- c tting for est belongs to the stable str ct res of the pop lation, the artifi