北京市八达岭林场森林健康经营研究

应用森林健康理论,分析得出威胁八达岭林场森林健康的主要因素为病虫害、森林火灾、森林组成以及林分结构不合理,森林粗放管理,气候干旱与雪折。提出了保护和恢复八达岭林场森林健康经营的目标与原则。研究认为,八达岭林场应构建地带性森林植被恢复,低质林分结构调整,生态疏伐,近自然化森林健康目标树经营,生态修复5种森林健康经营模式。通过八达岭森林健康项目区监测样地空间数据库、121个小班及其细班空间数据库的建立,结合所构建的具体模式,构建了八达岭森林健康示范区的240个细班经营模式。

Forestry Health Management in Badaling Forest Farm of Beijing City

The theory of forestry health is applied to study the forestry health in Badaling Forest Farm.It is found that forestry health in the farm is affected by insect pest,forest fire,irrational forestry strand structure,low-level management in forestry,and drought and snow break.The unhealthy forest in the farm is estimated to be over 60 percent.The goal and principle of forestry health on conservation and instauration in the farm are brought forward.Five vegetation management models of forestry health of resuming of land,configuration regulation of low forest,ecological thinning intensity,target tree of approaching-nature and ecological remediation are presented.Based on the spatial database of project area,spatial database of 121 representative sample areas and minute sample areas as well as integrating particular pattern,the management pattern of 240 minute sample areas is established for the farm.