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ABSTRACT:

Edge Effects of a Natural Secondary Forest on Liana Communities in Bawangling Hainan Island

Journal Article

Yuna Wu; Jianping T; Ke Z; Jianhui H

2010

Scientia Silvae Sinicae

46

43836

To assess the edge effects of forests on liana communitiesliana abundancerichness area at breast heightsize structure and climbing mechanisms were investigated in two 0.4 hm2transects from forest edges to interior region in a 60-year-old natural secondary tropical rain forestBawangling Nature ReserveHainan Island. The results showed that:1)Liana abundance decreased significantly with increasing distance from the forest edge in the both edges which respectively formed in 17 years and 13 years ago. Liana richness decreased with increasing distance from the edge in the 17-year-old edge. Liana breast height area was not affected by forest edge. 2)In the 13-year-old edge the proportion of liana individuals with their DBH larger than 1cm increased with the increase of distance from forest edge. Liana size structure was relatively stable in the 17-year-old edge.3)Liana climbing mechanisms varied significantly in different distances from forest edge. Stem twiners dominated in both edge. In summary edge effects of the forest on liana community structures declined with increasing distance from forest edge and increased with edge age. The influence depth was 40-50 m in the 17-year-old edge and approximately 10 m in the 13-year-old edge.

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Support

The Liana Ecology Project is supported by Marquette University and funded in part by the National Science Foundation.