黑龙江省西部农防林以松改杨更新方式选择研究  

Selection of Regeneration Modes with Pines Instead of Poplar in Farmland Shelterbelts in Western Heilongjiang Province

作　　者：朱浩[1] 王力刚[2] 赵岭[2] 

机构地区：[1]东北林业大学林学院,黑龙江哈尔滨150040 [2]黑龙江省森林与环境科学研究院,黑龙江齐齐哈尔161005

出　　处：《防护林科技》2016年第4期17-19,29,共4页Protection Forest Science and Technology

基　　金：黑龙江省科技攻关计划重点项目(GA06B302)

摘　　要：为了探讨黑龙江省西部农防林以松改杨不同更新方式的成效,采用带外更新、皆伐更新、带内更新开展了以红皮云杉更新成过熟小黑杨林带的试验。结果表明:红皮云杉成活率与保存率以带外更新最高,分别为98.5%、94.2%,皆伐更新次之,分别为93.6%、89.1%,带内更新最低,分别为55.3%、47.4%,前两者与后者差异极显著(0.01水平);各更新方式栽植初期3年高生长差异不显著,胸径与冠幅生长差异显著(0.05水平),高径及冠幅生长仍以带外更新最高,径及冠幅生长皆伐更新次之,带内更新高生长次之;带内更新不同处理红皮云杉成活率、保存率及高径、冠幅生长差异不显著(0.05水平)。黑龙江省西部农田防护林以松改杨更新方式以带外更新为最佳选择。In order to investigate the effects of different regeneration modes with pines instead of poplar in farmland shelterbelts in Heilongjiang Province,experiments of regenerate mature forest and overmature forest of Populus Simonii ×Populus nigra shelterbelts by Picea koraiensis were conducted by regeneration outside the belts,regeneration by clear cutting,regeneration inside the belts.Result shows that survival rate and preservation rate by regeneration outside the belts are the highest,being 98.5% & 94.2%;followed by regeneration by clear cutting,respectively being 93.6% &89.1%;the rates are the lowest by regeneration inside the belts,respectively being 55.3% &47.4%.The difference among the first two &the latter is significant(0.01level);after planting for three years,the height growth is not significantly different;diameter and crown growth are significantly different(0.05level),growth of diameter and crown are still the highest by adopting regeneration outsides the belts;followed by adopting regeneration by clear cutting,height growth take second place by adopting regeneration inside the belts.The difference survival rate,preservation &growth of diameter and crown by adopting regeneration inside the belts is not significant(0.05level).Selecting pines instead of poplar in farmland shelterbelts in Western Heilongjiang Province is optimal regeneration mode.

关 键 词：农防林 以松改杨 更新方式 红皮云杉 

分 类 号：S727.2[农业科学—林木遗传育种]