张家口坝上地区退化杨树防护林改造与配套政策建议  

Transformation and Countermeasures of Degenerated Poplar Protection Forest in Bashang District of Zhangjiakou City

作　　者：高俊峰[1] 郑焰锋[1] 王博宇[1] 

机构地区：[1]国家林业局调查规划设计院,北京100714

出　　处：《林业资源管理》2016年第4期30-33,共4页Forest Resources Management

基　　金："东北内蒙古重点国有林区森林资源规划设计调查质量检查验收"项目

摘　　要：张家口坝上地区是京津冀防护林建设的重点区域,防护林建设初见成效。近年来,现有防护林中的杨树防护林出现了林分树龄老化、防护功能退化等问题。本文从该地区杨树退化防护林的退化现状、退化原因、改造方式和政策建议等4个方面进行了阐述,旨在为该地区防护林后期建设提供参考。Preliminary results of protection forest construction were achieved in Bashang district of Zhangjiakou city and this area is regarded as key section of Beijing-Tianjing-Hebei shelter forest planning. In recent years,some problems have appeared in poplar protection forest,for example,old-aged forest and degenerated functions. In the paper,four aspects including degenerated poplar protection forest situation,degeneration reason,transformation measure and countermeasure are discussed in order to pro-vide reference for follow-up protection forest construction.

关 键 词：坝上地区 退化防护林 杨树 改造方式 政策建议 

分 类 号：S727.2[农业科学—林木遗传育种]