Study on Structure and Species Diversity in Post Harvested Tropical Montane Rainforest Dominated by Dacridium pierrii in Bawangling,Hainan Island

作者：Xiusen Yang · 发表于：Forest Research Open Access · 年份：2008 · 被引用次数：2 · 研究领域：Forest Ecology and Conservation、Ecology and Conservation Studies

Bawangling forest area is the most typical tropical montane rain forest area in Hainan island.Due to large scale forest harvesting in the past,most of the extant forests are post harvesting tropical montane rain forests,which have the greatest resources stock and distribution areas in Bawangling. The widespread distributed post harvesting tropical montane rain forest previously dominated by Dacridium pierrii was selected as the study object.The composition,size,height structure and species diversity of different post harvested forest stands were studied.Comparison and analysis were made among the different post harvesting stands and their virgin old-growth stands.The results were as follows:Compared with the virgin stand,the dominance of middle or small trees and shrubs increased while the dominance of big trees decreased in the post harvested stands.The species richness,density and relative importance of shade intolerant trees increased with the increase of harvesting intensity or damage degree the forest experienced.The percentages of short and small trees increased while those of the tall and big trees decreased in the post harvested stands, especially canopy trees decreased with the increase of harvesting intensity or damage degree.Based on analysis on the change of some stand factors and in view of forest structure maintenance,it was concluded that the harvesting methods of cutting while tendering and cutting according to size classes were better than clear cutting and s...