More lianas on larger host trees on steep slopes in a secondary temperate forest, Japan

IF 1.9 4区环境科学与生态学 Q3 ECOLOGY Plant Ecology Pub Date : 2024-03-19 DOI:10.1007/s11258-024-01409-6

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Abstract

Lianas (woody vines) are important components of forest ecosystems and are often found to proliferate in young forests that have experienced large-scale disturbances. However, little is known regarding the mechanisms of the spatial assembly patterns of co-occurring lianas and trees in the temperate secondary forest stands. In this study, we examined the woody plants (lianas and trees) with a stem diameter > 1 cm within a one-hectare plot on a steep mountain slope (32° average slope angle) in a temperate secondary forest in central Japan. We investigated the impact of the host trees, topography, and canopy gaps on the distribution of liana. We aimed to determine the factors that influence the spatial distribution differences between the co-occurring lianas and trees. The results were validated using the 10 m × 10 m quadrats (N = 40) distributed across 23 ha within the study site. We recorded 123 liana stems on 1536 trees belonging to 57 woody species in the one-hectare plot. The findings revealed that lianas are more abundant on larger host trees and less common in high tree density areas. Small and large lianas preferred steep and moderate slopes, respectively, whereas larger trees were primarily found on steep slopes. These variations in liana and tree distribution patterns on steep slopes, which we observed throughout their life history, may be attributed to the combined effects of varied historical anthropogenic disturbances and grazing impacts. This highlights the need to consider the diverse environmental responses of lianas and trees at the different life history stages to accurately understand liana colonization and proliferation in forests.

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日本温带次生林陡坡上较大寄主树上的更多藤本植物

摘要藤本植物（木质藤本植物）是森林生态系统的重要组成部分，通常在经历过大规模干扰的幼林中大量繁殖。然而，人们对温带次生林中藤本植物和树木共生的空间组合模式的机制知之甚少。在这项研究中，我们考察了日本中部温带次生林陡峭山坡（平均坡角 32°）上一块一公顷地块内茎直径为 1 厘米的木本植物（藤本植物和乔木）。我们研究了寄主树、地形和树冠间隙对藤本植物分布的影响。我们的目的是确定影响藤本植物和树木共生空间分布差异的因素。我们使用分布在研究地点 23 公顷范围内的 10 m × 10 m 四分格（N = 40）对结果进行了验证。在一公顷的地块中，我们在隶属于 57 个木本物种的 1536 棵树上记录了 123 根藤本植物茎。研究结果表明，藤本植物在较大的寄主树上较多，而在树木密度高的地区则较少见。小型和大型藤本植物分别喜欢陡坡和中坡，而大型树木则主要分布在陡坡上。我们观察到，藤本植物和树木在陡坡上的分布模式在其整个生命史中都存在变化，这可能是由于历史上各种人为干扰和放牧影响的综合作用造成的。这突显出需要考虑藤本植物和树木在不同生命史阶段对环境的不同反应，以准确理解藤本植物在森林中的定殖和扩散。

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来源期刊

Plant Ecology 环境科学-林学

CiteScore

3.40

自引率

0.00%

发文量

审稿时长

8.6 months

期刊介绍： Plant Ecology publishes original scientific papers that report and interpret the findings of pure and applied research into the ecology of vascular plants in terrestrial and wetland ecosystems. Empirical, experimental, theoretical and review papers reporting on ecophysiology, population, community, ecosystem, landscape, molecular and historical ecology are within the scope of the journal.