摘要
大兴安岭地区是我国重要的木材生产基地,同时也起到涵养水源和阻挡减缓西伯利亚寒流侵袭东北腹地的作用,其健康状况事关我国东北地区的生态安全等重大问题。本文基于样地调查数据,在参考国内外相关文献的基础上,针对单木健康调查项目进行选取,构建了天然落叶松单木健康评价指标体系,包括:根部状态、树冠落叶程度、树冠透视度、树冠重叠程度、树冠枯梢比重等5项指标。应用这些指标可以为单木尺度上对大兴安岭山区天然落叶松健康状况进行评价。
Daxing＇anling mountain is the main base of the production for wood in China,and it plays main role in water conservation and weakening siberia cold snap.The forest health are relative to the ecosystem safety in northeast China.The particle established health evaluation models for individual tree of the natural larch stand based on the sample plots data and relative references.The health evaluation index system includes： roots situation,defoliation degree of crown,crown perspectivity,crown overlapping degree and the ratio of the death tip of a tree.The particle applies these indexes to evaluate the health situation of individual tree of larix of Daxing＇anling mountain.
出处
《林业科技情报》
2013年第1期41-43,共3页
Forestry Science and Technology Information
基金
大学生创新创业训练计划项目(201210225091)
关键词
落叶松
健康评价
单木尺度
Larix
health evaluation
individual tree level
