华北落叶松人工林大强度抚育对人工促进天然更新的影响  

Influence of high intensity thinning to natural regeneration with artificial aid of Larix principis-rupprechtii plantation

作　　者：李贺明[1] 蔡胜国[1] 张艳华[1] 刘永利[1] 李金兰[1] 

机构地区：[1]河北省木兰围场国有林场管理局,河北围场068450

出　　处：《河北林果研究》2008年第4期373-375,共3页Hebei Journal of Forestry and Orchard Research

基　　金：国家"十一五"科技支撑计划项目(2006BAD24B06)资助

摘　　要：华北落叶松是华北地区的山地主要树种。通过对开始天然下种后能够良好更新的近熟林分实行大强度抚育,增加了林下光照、并通过清除地被物、开穴播种、补植补造、加强管护等人工促进天然更新措施,形成了林相好,功能强的理想复层林分。缩短了林分的工艺成熟期,提高了商品材经济效益,增加了生物多样性,并节约了抚育和更新造林成本。Larix principis-rupprechtii Mayr. is a major tree in North China motmtainous region. Understory light is increased by high intensity thinning for near maturity forest beginning naturally seeding. Ideal multi-storied forest with good forest canopy and high function is made by natural regeneration with artificial aid such as wiping off groined cover, sowing after making pits, adding saplings and seeds,strengthening management and protection. The regeneration shorten technical maturity period, increase economic benefits, add species diversity and save costs of thinning and afforesting.

关 键 词：华北落叶松 大强度抚育 天然更新 影响 

分 类 号：S791.22[农业科学—林木遗传育种]