阿喀克林区树木组成与生态结构

Agbor James Ayamba, Nkwatoh Athanasius Fuashi, A. Orock
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引用次数: 0

摘要

通过对该地区的树木组成和生态结构的评价,分析了该地区的植物区系组成和更新潜力。该研究于2018年4月至2019年2月进行。在5年的时间里,在Akak森林内共选择了49个被砍伐的树桩,并划定了20m × 20m的样带。所有小于1cm及以上的植物种均被鉴定并记录。结果表明,研究区共鉴定出71科216属384种5239个个体。植物种类最多的年份为2015年(376种)。植物种类最多,再生潜力最大的是豆科(99种)和(31种)。2013年、2015年和2017年分别为灰蝶(Baphia nitida)、毛桑(Musanga cecropioides)和白杨(Angylocalyx pynaertii)的优势种。2017年Simpson多样性最高,值为(0.989),2015年Simpson优势度最高,值为(0.013)。2013年Shannon均匀度最高,为(0.4879)。2013 - 2017年的最短欧氏距离为123.44,表明两者具有许多相似的植物物种。很明显,该地区低径级树木非常丰富,且该地区的结构为J逆,表明森林正在向顶极生长。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Tree Composition and Ecological Structure of Akak Forest Area
Tree composition and ecological structure were assessed in Akak forest area with the objective of assessing the floristic composition and the regeneration potentials. The study was carried out between April 2018 to February 2019. A total of 49 logged stumps were selected within the Akak forest spanning a period of 5 years and 20m x 20m transects were demarcated. All plants species <1cm and above were identified and recorded. Results revealed that a total of 5239 individuals from 71 families, 216 genera and 384species were identified in the study area. The maximum plants species was recorded in the year 2015 (376 species). The maximum number of species and regeneration potentials was found in the family Fabaceae, (99 species) and (31) respectively. Baphia nitida, Musanga cecropioides and Angylocalyx pynaertii were the most dominant plants specie in the years 2013, 2015 and 2017 respectively. The year 2017 depicts the highest Simpson diversity with value of (0.989) while the year 2015 show the highest Simpson dominance with value of (0.013). The year 2013 show a highest Shannon evenness with value of (0.4879). Logged compartment 2015 has a highest fisher alpha with value of 137.7 depicting highest specie richness The Shortest Euclidean distance of 123.44 between year 2013 and 2017 show that they both have many plants species that are similar. Evidently the forest area is very rich in trees in the lower diameter classes, and the structure of the Akak forest area is J reverse indicating that the forest is growing to climax.
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