燕山山地胡桃楸林抚育试验  

Tending Test of Juglans mandshurica Forest in Yanshan Mountain

作　　者：左增惠 王凤君 Zuo Zenghui;Wang Fengjun(Luanping State-owned Forest Farm,Chengde City,Chengde 068250,China)

机构地区：[1]承德市滦平国有林场总场,河北承德068250 [2]河北省滦平县巴克什营镇人民政府,河北承德068200

出　　处：《防护林科技》2020年第12期42-43,68,共3页Protection Forest Science and Technology

摘　　要：针对燕山山地沟谷胡桃楸林人为干扰多、缺少抚育和生长不良的问题,在林分结构特征调查基础上开展了胡桃楸林抚育试验。结果表明:在林分受人为干扰强度大的情况下,不良木所占比例较高,初次抚育间伐强度应为25%~45%,抚育后降低的郁闭度能在1~2 a内恢复;中幼龄胡桃楸林生长率高,强度疏伐后蓄积生长率提高8.7%~22.3%,抚育效果较好。In response to the problems of human disturbance,lack of tending and poor growth of Juglans mandshurica forests in the valleys of the Yanshan Mountains,Juglans mandshurica forest tending experiment was conducted on the basis of the investigation of the structure characteristics of the forest.Result shows that:The proportion of unhealthy trees is relatively high,and the initial thinning intensity should be 25%-45%,and the reduced canopy closure after tending can be restored within 1 to 2 years;the growth rate of young and middle-aged Juglans mandshurica is high;after the intensity thinning,the cumulative growth rate increase by 8.7%-22.3%,and the tending effect is optimal.

关 键 词：胡桃楸林 抚育 生长量 燕山山地 

分 类 号：S792.132[农业科学—林木遗传育种]