香格里拉高山松天然更新评价分析  

Analysis on Natural Regeneration Evaluation of Pinuns densata in Shangri-la

作　　者：吴明山[1] 许彦红[1] 王俊峰[1] 朱霖[1] 左政[1] 唐川[1] 胥辉[1] 

机构地区：[1]西南林业大学,云南昆明650224

出　　处：《安徽农业科学》2012年第1期223-225,228,共4页Journal of Anhui Agricultural Sciences

基　　金：国家林业局林业公益性行业科研专项(200904045)--典型森林生态系统生物多样性保育机制研究

摘　　要：[目的]评价香格里拉高山松火烧迹地更新、采伐迹地更新、林隙更新、林下更新4种立地更新类型的优劣状况,[方法]选用单位面积株数、苗木长势的苗高年平均生长量,地径年平均生长量3个指标,采用因子分析法进行综合评价。[结果]火烧迹地更新效果最好,其次是采伐迹地更新、林隙更新、林下更新。调查区实际生产中也主要采用火烧迹地和采伐迹地更新方式,结果与实际生产相符。[结论]采用因子分析法进行综合指标评价,既能兼顾单位面积株树和更新苗木长势,同时也避免了分量指标评价分析中出现的分歧,故该方法所得结果对生产实际具有一定的指导作用。[Objective] The aim was to evaluate the advantages and disadvantages of four regeneration types of P.densata in Shangri-la,which were fire-slash regeneration,cutover land regeneration,gap regeneration and undergrowth regeneration.[Method] Three indexes,such as the number of plants per unit area,annual average increment of plant height,annual average increment of ground diameter were selected,and factors analysis was used to carry out overall merit.[Result] It exhibited in nicer sequence,namely fire-slash regeneration,cutover land regeneration,gap regeneration and undergrowth regeneration.It was true of fact that fire-slash regeneration and cutover land regeneration had chiefly used in workaround,and the results were coincide with actual production.[Conclusion] Factors analysis was used to carry out overall merit,which not only could take into account of plant number per unit area and growth vigour of regeneration plants,but also could avoid the divergence in component index score analysis,thus,the results had certain guiding effect on actual production.

关 键 词：高山松 更新评价 因子分析 

分 类 号：S791[农业科学—林木遗传育种]