云冷杉针阔混交林天然更新的灰色分析  

Grey Analysis of Natural Regeneration of Mixed Coniferous and Broadleaf Stands of Spruce and Fir

作　　者：黄新峰[1] 亢新刚[1] 林田苗[1] 郑旭东[2] 

机构地区：[1]北京林业大学资源与环境学院,北京100083 [2]河南济源市林业局,河南济源454650

出　　处：《林业资源管理》2004年第4期28-30,共3页Forest Resources Management

基　　金：国家"十五"攻关子课题"东北过伐林区采伐更新技术研究与示范"(2001BA510B0703)

摘　　要：影响云冷杉混交林天然更新效果的因素有很多,哪种因素起的作用大,仅用定性分析难以做出判断。本文采用灰色系统理论中的关联分析法,对影响云冷杉针阔混交林天然更新的因素进行排序分析。排序结果依重要性由高到低为:海拔高度、蓄积量、林木株数、郁闭度、坡度、腐殖质厚度、针叶树株数、针叶树蓄积比重。在人为可以控制的因素中蓄积量得分最高,其次是林木株数、郁闭度、针叶树株数、针叶树蓄积比重。Many factors affect natural regeneration in mixed coniferous and broad-leaved stands of spruce and fir. This paper applies gray incidence theory to analyzing the influence factors of natural regeneration. The results of importance in demotion are altitude, volume, tree number, crown density, gradient, thickness of humus, number of conifers, percentage of the volume of conifers. The volume gets a high score in controlled factors, which puts up a principal importance. Next factors in turn are tree number, crown density, number of conifers, and percentage of the volume of conifers.

关 键 词：云杉 冷杉 针阔混交林 天然更新 灰色分析 

分 类 号：S754.1[农业科学—森林经理学] S711[农业科学—林学]