天然次生林择伐木的控制技术  

Control technique on selection cutting tree of natural secondary forest

作　　者：欧阳君祥[1] 

机构地区：[1]国家林业局调查规划设计院,北京100714

出　　处：《中南林业科技大学学报》2015年第8期32-35,41,共5页Journal of Central South University of Forestry & Technology

基　　金：林业公益性行业科研专项"天保工程区天然公益林抚育经营关键技术研究"(201204504);国家林业局调查规划设计院"赤峰市退化防护林改造规划"

摘　　要：依据天然次生林结构特点、生长与演替规律及天然林经营目标,选择影响控制择伐木最相关的4个独立定量指标:成熟度、林木类别、林隙等级和可及度作为林木的择伐几率指标;并利用层次分析法得到4个指标的权重;调查试验林分每株林木指标值,得到每株林木的择伐几率大小并按其大小排序,当林分蓄积或密度达到择伐要求时,在确定择伐强度后可依据择伐几率大小来控制择伐木,为天然次生林收获调整与经营利用提供技术支撑。The most relevant four absolute indexes on selection cutting tree are selected according to natural forest structure and growth, forest succession and sustainable management goal. These indexes, namely mature standing, standing class, expand gap and accessible standing, have been indicated to selection cutting probability. Further, each index is obtained applying analytic hierarchy process. Moreover, each index value along with the selection cutting probability order of decreasing size is calculated for experimental forest. Final, the selection cutting tree can be identiifed while the conifrmed selective cutting intensity in selection forest. This control technique on selection cutting tree can make for natural forest management and yield regulation.

关 键 词：天然次生林 抚育经营 择伐 择伐几率 森林可持续经营 

分 类 号：S752.22[农业科学—森林经理学]