马尾松不同造林密度和不同利用方式经济效果分析  

THE ECONOMIC RESULTS ANALYSIS ON MASSON PINE AT VARIOUS PLANTING DENSITY AND UTILIZATION WAYS

作　　者：丁贵杰[1] 周政贤[1] 

机构地区：[1]贵州农学院造林生态研究室

出　　处：《南京林业大学学报（自然科学版）》1996年第2期24-29,共6页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家"八五"攻关项目

摘　　要：分析了不同造林密度林分生长的差异。从培育建筑材和纸浆材两个不同角度，对１１年和１７年生的不同造林密度试验林作了经济效果的对比分析，结果表明，初植密度铰大，生物量较高的林分，以培育纸浆材为好。纸浆材林初植密度可定为４５００－６０００株／ｈｍ２，轮伐期１４～１６年。对于平均胸径小于１４ｃｍ或造材后小头去皮直径小于１２ｃｍ的原木，加工成本片销售，效益好于直接售原木。培育建筑材林，初植密度可为３３００－４４４０株／ｈｍ２，轮伐期要大于１７年。The difference in stand growth of various planting desity was analysed. The economic resutls were analysed for various planting density experiemntal forest of 11 and 17 age, from the cultivation of building timber and pulp wood angles, the resutls showed that cultivating pulp wood was better, for stand of planting density being bigger and biomass being higher. Planting density of pulp wood forest could be determined as 4500～6000 trees per hm 2, the retation age was at about 14～16. The log with breast height diameter being less than 14 cm or small and peeled diameter of cross cut being less than 12 cm could be processed for chips, the benefit was better than selling log directly. Planting density of building timber stand could be determined as 3300～4440 trees per hm 2 the retation age was more than 17.

关 键 词：马尾松 造林密度 经济分析 建筑材 纸浆材 

分 类 号：S791.248[农业科学—林木遗传育种] S725.6[农业科学—林学]