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为简化红松、鱼鳞云杉林分不同年令阶段不同立地条件类型的抚育间伐,并以此对确定林分工艺成熟和林分生长予测、予报等提供理论依据和一些重要参考。现将研究结果简介于下。一、资料搜集红松(P.koraiensis)林分密度与林分平均直径(取平均胸径值)之资料。取自1956-1957年林业部森林调查设计局森林综合调查队编《森林综合调查报告》第四卷中红松生长过程表有关部分。按林型和地位级区分包括:缓坡蕨类树藓红松林Ⅱ地位级、秦子红松Ⅱ地位级、榛子胡枝子红松林Ⅲ地位级、杜鹃丝叶苔草红松林Ⅳ地位级。以上各林型、地位级红松林,在表格中依次简称为Ⅱ_(-1)、Ⅱ_(-2)、Ⅲ和
In order to simplify the tending and thinning of Pinus koraiensis and Picea meyeri at different site conditions in different years, and to provide theoretical basis and some important references for determining the maturity and stand growth prediction of forest stand. The research results are summarized below. First, data collection P. koraiensis (P.koraiensis) stand density and stand diameter (average diameter at breast height) information. From 1956 to 1957 Forest Bureau of Forest Survey and Design Bureau of forest comprehensive investigation team compiled “Forest Survey” Volume IV of the Korean pine growth process of the relevant parts of the table. According to forest type and status level, it includes: Pinus koraiensis, Pinus koraiensis Ⅱ status, Pinus kwangsii Ⅱ status, Pinus sylvestris var. Korshinskii Ⅲ status, Pinus koraiensis N stands Ⅳ status. The above forest type, status-class Korean pine forest, in the table followed by referred to as Ⅱ _ (- 1), Ⅱ _ (- 2), Ⅲ and