中国北部地区退化林地林分结构与自然更新  

Stand structure and natural regeneration of degraded forest land in northern China

作　　者：左美丽 ZUO Mei-Li(Poplar Forestry Bureau of Shanxi Province,Suzhou 036002,China)

机构地区：[1]山西省桑干河杨树丰产林实验局,朔州036002

出　　处：《林业和草原机械》2021年第6期9-12,共4页Forestry and Grassland Machinery

摘　　要：通过分析中国北部地区退化林地林分表层组成和林分结构,进一步确定了研究区域内退化林地的实际情况,并指出自然更新树种的高度与直径分布情况。研究表明,经过对退化林的修补,目前研究区域的物种多样性程度较高,并且自然更新情况较好。合理运用自然再生理念与方法,能为中国北部的种植园林业提供一个具有潜力的替代选择。by analyzing the surface composition and stand structure of degraded forest land in northern China,this study further determines the actual situation of degraded forest land in the study area,and puts forward the height and diameter distribution of natural regeneration tree species.The research shows that after the restoration of degraded forest,the species diversity in the study area is high,and the natural regeneration is good.The rational use of natural regeneration concepts and methods may provide a potential alternative for plantation forestry in northern China.

关 键 词：中国北部地区 退化林地林分结构 自然更新 

分 类 号：S756[农业科学—森林经理学]