天然林与人工林凋落物节肢动物和土壤中系动物的比较调查(以阿蓬木阿库尔森林保护区为例)

Adeduntan Sunday Adeniyi, Olusola Johnson Adeyinka
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引用次数: 4

摘要

通过对尼日利亚Aponmu Akure森林保护区天然林和3个人工林(Nauclea diderichii、Gmelina arborea和Tectona grandis人工林)的中低等动物和凋落物节肢动物的丰度和物种多样性进行调查,探讨人工林发展对凋落物节肢动物和中低等动物丰度和物种多样性的影响。评价了微生物丰度和物种多样性对其丰度和物种多样性的影响。每个生境设置100 m × 100 m块样地。在选定的样地采集土壤样品,分离和鉴定中系动物和微生物,同时保存和鉴定捕获的凋落节肢动物。调查期间,在所有生境中共发现23种中系动物1165只。林间动物丰度最高的是小叶茅人工林(334个),最少的是白核林(201个)。物种多样性最高的是天然林,有23种,最小的是大构造人工林。研究区共发现凋落节肢动物64只(分布于27种)。物种多样性和丰度均以天然林最高,分别为21种和11种。大大地构造(Tectona grandis)的物种多样性最少(5种),小木林(Gmelina arborea)的凋落节荚丰富度最少(12个)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparative Survey of Litter Arthropods and Soil Mesofauna in the Natural Forest and Plantation (a Case Study: Akure Forest Reserve Aponmu)
The abundance and species diversity of mesofauna and litter arthropods were surveyed in the natural forest and three plantations (Nauclea diderichii, Gmelina arborea and Tectona grandis plantations) in Akure Forest Reserve, Aponmu Nigeria to examine the effect of plantation development on both the abundance and species diversity of litter ar- thropods and mesofauna. The effect of microorganism's abundance and species diversity on their abundance and species diversity was also assessed. Sample Plot of 100 m × 100 m blocks were laid in each habitat. Soil samples were taken from the selected sample plots to isolate and identify mesofauna and microorganisms while litter arthropods caught were pre- served and identified. During the survey, 1165 individuals of mesofauna were encountered (distributed in 23 species) in all the studied habitats. Mesofauna abundance was highest in Gmelina arborea plantation (334 individuals) while Nauclea diderichii plantation has the least abundance of 201 individuals. Highest species diversity was recorded in Natural forest with 23 species while the least species diversity was found in the Tectona grandis plantation. 64 individual of litter arthro- pods were however encountered in the study area (distributed in 27 species). Natural forest accounts for the highest in both the species diversity and abundance (i.e. 21 individuals and 11 species respectively.) Tectona grandis accounts for the least species diversity in the studied habitats (5 species) and Gmelina arborea plantation has the least abundance of litter arthro- pods (12 individuals).
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