铜壁关自然保护区天然缅竹秆形结构规律的研究  

Culm Form Structure of Natural Bambusa burmanica from Tongbiguan Nature Reserve

作　　者：陈建设[1] 石明[1] 杜凡[1] 张晓凯[1] 

机构地区：[1]西南林业大学林学院,云南昆明650224

出　　处：《西部林业科学》2014年第6期124-128,共5页Journal of West China Forestry Science

基　　金：西南林业大学植物学校级重点学科建设项目资金

摘　　要：2013年5月,抽样调查了盈江县铜壁关自然保护区的天然缅竹,测量其全高(H)、枝下高(h)、胸径(D)、基径(d)、秆重(G)、分段秆重(g)、节间直径(dj)、节位数(N)和节壁厚(T)等因子,对缅竹进行秆形结构分析,并将缅竹与毛竹进行对比。研究结果显示:缅竹的基径对胸径的拟合方程为:ln(d)=ln 1.406+0.885 ln(D)(R2=0.880);秆重对胸径的拟合方程为:ln(G)=ln 86.544+2.797 ln(D)(R2=0.907);壁厚对高度的拟合方程为:T=3.487-0.433 ln(Hx)(R2=0.832);节间直径对高度的拟合方程为:dj=8.803-0.004 Hx(R2=0.745)。这些因子间均表现出较好的相关性,其它秆形结构因子间的相关性不显著。胸径相同时,缅竹全高、秆重均大于毛竹;从基部到33节时,缅竹节间长明显大于毛竹。表明在竹材的加工利用方面,缅竹与毛竹相比具有较高的利用率和较大的开发潜力。This paper investigated several factors of Bambusa burmanica from Tongbiguan nature reserve in May, 2013, such as culm height （H）, clear bole height （h）, diameter at breast height （D）, base diameter （d）, culm weight （ G） , segmented stem weight （ g） , internode diameter （ dj） , joint amount （ N） and wall thickness （ T） .Comparing the culm structure between Bambusa burmanica and Phyllostachys pubescens, the study results indicated that the model of d to D was ln （ d） =ln 1.406＋0.885 ln （ D） （ R2 =0.880 ）;the model of G to D was ln （G） =ln 86.544＋2.797 ln （D） （R2 =0.907）;the model of T to Hx was T=3.487-0.433 ln （Hx） （R2 =0.832）;the model of dj to Hx was dj=8.803-0.004 Hx （R2 =0.745）.Significant correlation relation-ship was found among these data groups, but not between the rest factors.When the diameter at breast height was equal, the culm height and culm weight of Bambusa Burmanica were greater than those of Phyllostachys pubescens. The internode length of Bambusa burmanica was much longer than that of Phyllostachys pubescens from the root to 33th bamboo joint.Compared with Phyllostachys pubescens, higher efficiency and great development potential of Bambusa burmanica was showed in the utilization and processing of bamboo timber.

关 键 词：缅竹 秆形结构 相关性 铜壁关自然保护区 毛竹 

分 类 号：S795.9[农业科学—林木遗传育种]