竹山县官渡镇楠木类植物种群特征研究
Population Characteristics of the Species of Phoebe in Guandu Town Zhushan County

作者: 李文杰 * , 邓 丹 , 费 越 , 杨朝东 :长江大学楠木种质资源评价与创新中心,湖北 荆州;

关键词: 宜昌润楠白楠种群数量特征结构特征Machilus ichangensis Rehd. et Wils. Phoebe neurantha (Hemsl.) Gamble Population Quantitative Characteristics Structural Characteristics

摘要:
在竹山县官渡镇百里河村有较为集中的楠木类植物分布,在该地设置样地,采用植物种群野外调查方法研究楠木种群的数量特征、结构特征。结果表明:调查区域内天然宜昌润楠和白楠种群内个体为群集分布,且分布密度大;其中宜昌润楠处于三级立木的植株最多,占总量的42%,幼苗也较多,占总量33%,呈增长型;白楠虽缺失幼苗,但是处于三级立木的植株丰富,占总量的83%,呈稳定型。

Abstract: Sample plots were set in Baili River village of Guandu town Zhushan county to research quantitative characteristics and structural characteristics of natural population of Phoebe zhennan S. Lee by using field survey methods. The results showed that the individual distributions of natural population of Machilus ichangensis Rehd. et Wils. and Phoebe neurantha (Hemsl.) Gamble were contagious one in survey area with a considerable density. The number of Machilus ichangensis Rehd. et Wils. in the third lever (42%) was larger than that of others. And the number of juvenile phase (33%) was also larger. So the natural population of Machilus ichangensis Rehd. et Wils. was growth. Although there was lack of the juvenile phase of Phoebe neurantha (Hemsl.) Gamble, but the third lever (83%) was very lager, and it was a stable form.

文章引用: 李文杰 , 邓 丹 , 费 越 , 杨朝东 (2016) 竹山县官渡镇楠木类植物种群特征研究。 世界生态学, 5, 67-74. doi: 10.12677/IJE.2016.54008

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