Structure and Dynamics of the Remnant Evergreen Broad-Leaved Forest on Mt.Tieshanping in Chongqing
2009
The remnant evergreen broad-leaved forest fragment in Tieshanping National Forest Park in Chongqing is one of the typical evergreen broad-leaved forest types distributed in the hilly and lower mountainous regions in mid-subtropical China.This type of evergreen broad-leaved forest has seldom been reported and the fragment is very rare for its survival from the quick urbanization process.In this study,a 0.2-ha permanent plot(29°37.606′N,106°41.737′E) was established in the fragment and was divided into 20 subplots in 2006.All the trees taller than 1.5 m were identified and measured to quantify the community structure of the forest.Five population age structure types were categorized based on the DBH size-class frequency distribution patterns of the tree species.Three population crown structure types were categorized based on crown depth and tree height.Then six species types were categorized according to the population age structure types and the population crown structure types.Every type of trees had its own successional niche and homologous regeneration type.The community was classified as a climax community and it was a right model and rich species source for the restoration of damaged vegetation in the regional scale.
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