Studies on Rock Vegetation and Trees Sprout Regeneration in Joe-fen-er-shan Area
Date Issued
2004
Date
2004
Author(s)
Yu, Chien-Hsun
DOI
zh-TW
Abstract
Rocky environment is a special habitat form; however, vegetation studies in rocky habitat are few. Joe-fen-er-shan area, which has a special rocky geological structure, is located right in Guoshing township in Nantou County. In this research, 46 plots were set for investigating rock vegetation association. Six vegetation types were classified from the data. They are Trema orientalis－Sphaeropteris lepifera type、Turpinia formosana－Machilus japonica type、Pyrenaria shinkoensis－Engelhardtia roxburghiana type、Castanopsis hystrix－Pasania konishii type、Archidendron lucidum－Machilus zuihoensis type and Mallotus philippensis－Cyclobalanopsis glauca type. Among these types, Mallotus philippensis－Cyclobalanopsis glauca type is the most typical rock vegetation type and its vegetation composition is very different from others. This suggests that rock vegetation is very unique.
Rocky habitat is a stress for plants, and most of the plants have difficulties in growing there. To understand the mechanism of the rock vegetation, I investigated how trees adapt to this kind of stress. The result shows that the more rock content it has, the more tree sprouts there will be in the habitats. As a result, I infer that sprouting is an important adaptation for plants growing in rock environment. In addition, I also discover that there are many deciduous trees in rocky vegetation which indicates that defoliation is an adaptation for rock environment, too.
Subjects
萌蘗
逆境
岩生植群
植群分析
植群研究
九份二山
落葉性
Stress
Rock vegetation
Vegetation analysis
Vegetation study
Joe-fen-er-shan
Sprouting
Deciduous
Type
other
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