摘要
对大明山中山退化生态系统植被恢复过程植物物种多样性的发展研究表明：大明山中山植被恢复过程物种数量的增减总是伴随着阳性先锋物种的衰退和中生性顶极种的发展。恢复过程中植物物种数量呈前期（２～２０年）迅速增加，中期（５０～６０年）减少，后期（１５０年以上）维持一定水平的发展趋势。中山区退化生态系统的植被恢复是朝着地带性植被类型的方向发展的，此过程可以不经过马尾松先锋林阶段，而直接进入以阔叶树种为优势的先锋群落。因此，大大缩短了中山山地退化生态系统植被向中生性顶极植被恢复的进程。
The development of plant species diversity in vegetation restoration process in midmountain region of Damingshan was investigated. The results show:1) As pioneer sun species degenerated, the species was getting more in the process of vegetation restoration at midmountain Damingshan, while it was getting less as the climax species developed. The change in species numbers in vegetation developing process toward the climax was quickly increasing in the early stage (2~20 years), decreasing in the midstages (50~60 years), maintaining at a level in latestages (>150 years);2) The vegetation recovering process in degraded ecosystem tends towards that in climax, which can but directly enter pioneer community dominanted by broadleaved tree, be without Pinus massoniana forest stage. Thus, the vegetation recovering process toward the climax in degraded ecosystem in midmountain was shortened enormously.
出处
《植物生态学报》
CAS
CSCD
北大核心
1998年第1期33-40,共8页
Chinese Journal of Plant Ecology
基金
国家自然科学基金
关键词
植被恢复
物种多样性
中山
大明山
Vegetation restoration, Species diversity, Midmountain, Damingshan
