过伐红松林优质大径材单株培育技术  

Cultivation Techniques for Single High-quality Large-diameter Timber in Over Logging Pinus koraiensis Forests

作　　者：李巍巍 叶林 李志新 LI Weiwei;YE Lin;LI Zhixin(Yichun Branch of Heilongjiang Academy of Forestry,Heilongjiang Yichun 153000)

机构地区：[1]黑龙江省林业科学院伊春分院,黑龙江伊春153000

出　　处：《林业科技》2025年第2期19-22,共4页Forestry Science & Technology

基　　金：黑龙江省省属科研院所科研业务费项目(CZKYF2022-F01);伊春市重点科技计划项目(Y2023-14)共同资助。

摘　　要：对标准地内每株乔木、红松轮枝、生长节各指标以及红松与相邻树冠投影有重叠的干扰树的测树信息进行调查,通过测树因子模型进行计算,确定过伐林红松大径材培育的目标树密度为170~350株/hm^(2),培育平均胸径45~34 cm的红松大径材。红松目标树的树高选择范围为1~17 m。树高12 m(胸径17 cm)以上同处于林分上层的目标树之间的最小间距7.5 m。处于不同的经营层中或者同处于中层和下层红松目标树之间的最小距5.3 m。The tree measurement information of each tree,round branches and growth node of Pinus koraiensis,as well as interference tree with overlapping crown projection of Pinus koraiensis in standard plot were investigated.It is determined that the target tree density for cultivating large diameter timber of Pinus koraiensis in over-logged forest is 170~350 plants/hm^(2),and the average DBH is 45~34 cm,and the tree height selection range of target tree is 1~17m through calculation of tree measurement factor model.The minimum distance between the tree height above 12 m(DBH 17cm)and the target tree in the upper layer of the stand is 7.5 m.The minimum distance between target trees of Pinus koraiensis in different management layers or between middle and lower layers is 5.3 m.

关 键 词：过伐红松林 大径材近 自然经营 目标树选择 

分 类 号：S791[农业科学—林木遗传育种] S247[农业科学—林学]