摘要
对张家沟集水区内的树木,运用Visual foxpro编写程序计算树木的竞争指数,并对树木所受到的竞争强度的平均值进行统计,根据结果分析树木竞争指数的分布格局。
In this paper,forest competitive index in Zhangjiagou watershed is computed by Visual foxpro,meanwhile,competition intensities mean values are calculated,and the pattern of forest competitive index is also analyzed according to the results.
出处
《林业勘查设计》
2007年第1期45-46,共2页
Forest Investigation Design
关键词
竞争指数
空间分布
次生林
Competitive Index Spatial Distribution Secondary forest
