燕山山地槲树次生林冠下造林试验  

Afforestation under Canopy of Quercus dentata Secondary Forest in Yanshan Mountain

作　　者：吴树芹 尤海舟[2] Wu Shuqin;You Haizhou(Luanping State-owned Forestry Farm Management of Chengde City,Chengde 068250,China;Hebei Academy of Forestry,Shijiazhuang 050061,China)

机构地区：[1]承德市滦平国有林场管理处,河北承德068250 [2]河北省林业科学研究院,河北石家庄050061

出　　处：《防护林科技》2019年第12期5-7,共3页Protection Forest Science and Technology

摘　　要：针对燕山山地阳坡生长稀疏的退化槲树次生林,轻度疏伐后,采用油松容器苗进行冠下造林试验,结果表明:在林分郁闭度低于0.6的条件下,油松冠下造林的成活率与保存率较高,原有萌生单层纯林转化为异龄复层混交林,起到了较好改善林分结构和促进林分健康发育的作用。从油松幼树生长发育情况看,受光充分的油松幼树长势明显优于遮阴程度较高的幼树,说明影响退化槲树次生林冠下油松幼树生长发育的关键因素是受光条件,因此应适当加大疏伐强度,创造较好光照条件,以利于油松幼树生长。There are much degenerate Quercus dentata secondary forest in Yanshan mountain.After thinning in low level,the experiments of afforestation under canopy with Pinus tabuliformis container seedling were done.Result shows that afforestation survival rate and conservation rate are higher when the canopy density of the larch stand is less than 0.6,the coppice one layer pure forest transform to multi-layer and uneven-aged mixed forest,the forest quality improved.The growth vigor of Pinus tabuliformis is optimal under good solar radiation,it shows that the solar radiation significantly affect the growth of Quercus dentata secondary forest when afforestation under canopy.Increasing the thinning intensity creating optimal lighting conditions can promote the growth of Pinus tabuliformis young trees.

关 键 词：槲树次生林 退化栎林 油松 冠下造林 燕山山地 

分 类 号：S727[农业科学—林木遗传育种]