摘要
通过人工同龄纯林树冠面积与林地面积的相关比例关系，推导、计算出人工同龄纯林林木品字形排列（等腰三角形）和矩形排列，且株行距不同的林分理论郁闭度。使用者在使用时，只要根据林木的不同排列方式、株行距、树冠半径长，即可计算出相应的理论郁闭度值，解决了人工同龄纯林在一定范围内理论郁闭度的测定计算问题。
The rectangle and isosceles triangle are two main kinds of arrangement of pure artificial even aged stand,according to correlative relationship between crown area and forest area of pure artificial even aged stand theoretical canopy density of stand between different row and intertree space are inferred and calculated. Theoretical canopy density can be calcutated only depending on different arrangements,intertree and row space,radius of crown,which helps to solve how to measure and calculate theoretical canopy density of pure artificial even aged stand at certain range.
出处
《甘肃林业科技》
1999年第3期1-6,11,共7页
Journal of Gansu Forestry Science and Technology
基金
(1997~1998 年)省林业科学技术资助
关键词
人工同龄纯林
理论郁闭度
测定计算
林冠
pure artificial even aged stand
theoretical canopy density
measure and calculation
