We determined the response of tree community structure to logging disturbance and topography, and the patterns of tree-habitat associations in Tano Offin Forest Reserve, Ghana. We sampled trees in 27 20 m × 20 m plots randomly and equally distributed in three topographic habitats (slope, valley, and hilltop) in each of two forests: logged and unlogged. Two topographic features, altitude and degree of slope, were measured and related with species composition. Overall, there were significant effects of logging and topographic habitat and their interaction on species diversity and composition, with the unlogged forest and valley habitat supporting higher diversity. Tree diversity varied among the topographic habitats in the logged but not in the unlogged forest. There were topographic effects on abundance of individual species but not on tree community abundance and basal area. Logging and its interaction with topographic habitat showed significant effects on tree abundance and basal area. Some species were associated with specific topographic habitats or a combination in the logged and unlogged forests. However, the patterns of habitat associations of the species differed between the logged and unlogged forests.

我们确定了加纳塔诺奥芬森林保护区树木群落结构对伐木干扰和地形的响应以及树木-栖息地协会的模式。我们在27个20 m×20 m的地块中随机抽样，并均匀地分布在两个森林中每一个的三个地形生境（斜坡，山谷和山顶）中：伐木和未伐木。测量了两个地形特征，高度和倾斜度，并与物种组成相关。总体而言，伐木和地形生境及其相互作用对物种多样性和组成具有显着影响，未砍伐的森林和山谷生境支持更高的多样性。砍伐的森林中地形栖息地的树木多样性不同，而未砍伐的森林中树木的多样性则不同。地形对单个物种的丰度有影响，但对树木群落的丰度和基础面积没有影响。伐木及其与地形生境的相互作用显示出对树木丰度和基础面积的显着影响。一些物种与特定的地形栖息地或在砍伐和未砍伐的森林中的组合有关。但是，在砍伐和未砍伐的森林中，该物种的栖息地关联模式有所不同。