中文摘要：

分别在哀牢山湿性常绿阔叶林沟谷和坡面调查了1O个20m×50m的样地，研究哀牢山湿性常绿阔叶林木质藤本植物的物种多样性及其与支柱木的关系。结果表明：研究区共记录到DBH≥1cm的木质藤本植物402株（隶属于23种21属16科）和DBH≥10cm的林木1522株（隶属于47种30属15科）；与其他亚热带森林比较，该森林中木质藤本植物物种较为丰富但多度较低；藤本植物的物种丰富度、密度和基面积在沟谷显著高于坡面，而林木的差异性不显著；木质藤本植物在支柱木上呈集群分布，并且不同种支柱木被藤本植物攀援的百分比间存在显著的差异（P〈0．001），说明藤本植物的攀援对支柱木具有选择性；云南越桔、薄叶马银花和景东冬青等树种因其树皮光滑而不易被藤本植物攀援，而腾冲栲、七裂槭、山矾和多花山矾等则易于被藤本植物攀援；大径级支柱木被藤本植物攀援的比率高于小径级支柱木；茎缠绕和钩刺攀援藤本的胸径与支柱木胸径极显著相关（P〈0．001），根攀援和卷须攀援藤本的胸径与支柱木胸径相关性不显著（P〉0．05）。

英文摘要：

Lianas （woody vines） and the host trees were investigated in ten 20 m × 50 m sample plots which were set respectively in valleys and hillslopes in the moist evergreen broad-leaved forest in the Ailao mountains, SW China. In total, we recorded 402 climbing lianas DBH ≥1 cm, representing 23 species in 21 genera and 16 families, and 1 522 host trees DBH ≥10 cm, belonging to 47 species in 30 genera and 15 families. Compared to other subtropical forests, the lianas in the studied forest were rich in species, but low in abundance. The species richness, abundance and basal area of lianas were significantly higher in valley than in hillslope sites, whereas host-trees did not differ significantly between the two sites. Lianas had a clumped distribution on trees, and there was a significant difference in the percentage of liana climbing among different host tree species （P 〈 0. 001 ） , suggesting that lianas have some host selectivity. Those trees with smooth bark, such as Vaecinium duclouxii, Rhododendron leptothrium and Ilex gintungensis, were less likely to host lianas, while some trees with rough or slightly rough bark, such as Castanopsis wattii, Acer heptalobum, Symplocos sumuntia and S. ramosissima, were more likely to carry lianas than other tree species. The ratio of trees with lianas was higher in large size-class trees than in small size-classes. There were significant correlations between the DBH of stem twiners, hook climbers and the DBH of host trees （P 〈 0. 001 ） , while there were no significant correlations between the DBH of root, tendril climbers and host trees （P 〉 0. 05）.