【作者】 周毅； 钟军民； 汤明霞； 郭乐东； 黎艳明；

【Author】 ZHOU Yi~1,ZHONGJunmin~2,TANG Minxia~2, GUO Yuedong~1,LIYanming~1 (1 Guangdong Academy of Forest,Guangzhou 510520,China;2 Guangdong JiaoLing Changtan Provincial Natural Reserve,Meizhou 514185,China)

【机构】 广东省林业科学研究院； 广东省蕉岭长潭省级自然保护区；

【摘要】 采用DMAP地理统计软件将广东省蕉岭长潭省级自然保护区划分成66个公里网格,开展次生林结构的研究,结果表明:(1)频数分析发现,所有活立木树高、胸径、冠幅、和枝下高均不符合正态分布,表现出呈倒J型的集中分布趋势;平均树高、平均胸径、平均冠幅和平均枝下高为7.98 m、8.62 cm、2.70 m和1.91 m,主要集中分布在4.0～8.0 m,2.0～8.0 cm,0.5～3.0 m和0.1～3.0 m之间。(2)调查样地共计6081株活立木,隶属于135种乔木树种,其中以杉木、木荷、马尾松、青皮竹、毛竹、藜蒴等36种为主要树种。更多还原

【Abstract】 Changtan nature reserve of Guangdong province was divided into 66 plots that process 1 km×1 km UTM sample plots with DMAP software,and the results showed that:(l)There were 6081 trees in the 6600 m～1 fileds,which in a total of 135 speices,and the main speices included 36 species, such as Ctmninghamia lanceolata,Schima superba,Pinus massoniana,Bambusa textiles,Phyllostachys heterocycla and Castanopsis fissa,etc.(2)the analysis of frequency found that the distribution of height, DBH,crown and branch height were not normal distribution,but type over J.the average height,DBH, crown and branch height of the individual was 7.98 m,8.62 cm,2.70 m,1.91 m respectively,which ranged mostly from 4.0～8.0 m.2.0～8.0 cm,0.5～3.0 m and0.l～3.0 m,respectively.更多还原