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作 者:许煌灿[1] 尹光天[1] 曾炳山[1] 傅精纲 张伟良[1] 张国
机构地区:[1]中国林业科学研究院热带林业研究所,广州市白云区林业局,广东省高州县林业局
出 处:《林业科学研究》1994年第1期20-26,共7页Forest Research
基 金:林业部"七五"重点科研项目;加拿大国际研究中心(IDRC)资助
摘 要:热带山地雨林、热带常绿季雨林和南亚热带常绿阔叶林是黄藤天然分布的主要植被类型,在热带山地雨林和季雨林的不同林型中,黄藤分布密度变化大,10~1700株/hm2;黄藤为强萌蘖丛生植物,1~3年生幼藤生长缓慢,3年生植株生长加快,茎长生长量大于1.0m/a,4~5a开花结果;藤丛由茎长不一的异龄植株所组成,不同长度级的株数分配及其茎长占藤丛总株数的比例具有一定规律:各长度级的藤株数量随长度级的增加而减少,其组成结构呈对数函数y=a+blnx(b<0)的关系。This paper deals with the natural resources distribution, eco-logical and biological characteristics, growth and development rules of Dae-monorops margaritae (Hance) Becc. D. margaritae is mainly distributed natura-lly in the tropical mountain rain forest, tropical evergreen monsoon rain for-est, and subtropical broad-leaf evergreen forest. The density of distribution varies from 10~1700 stems/hm2 in the tropical mountain rain forest and the monsoon forest. D. margaritae is a clustering species with strong sprouting ability growing slowly in the early stage of 1~3 years old, then entering the stage of fast-growing at the age of 3 years old with an annual increment >1m in stem length and flowering and fruiting the age of 4 to 5. The clump is composed of uneven-aged shoots with different length. There are certain rules existing in the distribution of the stem length classes and ratio of its length to total length of a clump, which presents decreasing in the number of stems with raising in the length classes.
分 类 号:S796.01[农业科学—林木遗传育种]
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