光能的二维分异对马(口缷)山青杄林结构和群落类型的影响  

Effect of Two Dimensional Difference of Light Intensity on Stand Structure and Community Type of Picea wilsonii Forest

作　　者：刘安全[1] 王刚[2] 

机构地区：[1]西北林学院 [2]兰州大学

出　　处：《西北林学院学报》1991年第3期19-24,共6页Journal of Northwest Forestry University

摘　　要：以R=K+W作为计测二维分异的经验公式。结果表明:W值影响群落的乔木层种类,(K+W)值影响林下的种类组成和配置状况。据W值大小和群落的特征,将青杄林分为五个群类型;(K+W)值对选择造林树种和抚育间伐具有一定的指导意义。Determines the effect of 2-dimensional difference of light intensity on stand structure and community type of Picea wilsonii forest by using R = K + W as an empirical formula .W value affects the species of tree stratum in the community where (K+ W) value affects the species composition and distribution. Picea wilsonii forest may be classified into 5 community types based on W value . (K + W) value is specified for selecting tree species in forestation and tending thinning.

关 键 词：光能 二维分异 青杆 结构 群落类型 

分 类 号：S718.512.2[农业科学—林学]