摘要
本文对西双版纳热带雨林刀耕火种撩荒后形成的鸡血藤次生群落进行了研究和分析，结果表明：在９００ｍ２的固定样地上，计有维管束植物６２种，隶属于３６科５５属，ｓｈａｎｎｏｎ－ｗｉｅｎｎｅｒ指数为４．２５；区系地理成分可分为９种类型，以热带区系成分为主，占９２．７３％。群落结构可分为乔木层（Ⅰ、Ⅱ、Ⅲ）、灌木层、草木层及层间植物，群落的外貌以高位芽、小叶型、单叶、纸质为主组成。与先锋阶段的植物群落相比，该群落正向湿润性的热带森林方向发展。
The paper presents the study result of Millettia laptobotrya secondary community for 22 years which naturally regenerated from the slash-and-burn cultivation in tropical rain forest. A permanent plot (900 m2) was observed in Menglun, Mengla county, Xishuangbanna. A total of 62 species of higher plant in 55 genera and 36 families occured in the permanent plot, and the index of species diversity was 4.25. The floral composition can be divided into 9 areal types, of which the tropical distribution was 92.73%; the stratification of the community structure can be clearly divided into: arborous layer (Ⅰ, Ⅱ, Ⅲ), shrub layer, herbaceous layer and lianas. The physiognomy was composed of phaenerophyte (83.6%), microphylls (42.62%), single leaf (85%). Compared with the pioneer plant community, the Millettia laptobotrya community is going forward to humid tropical rain forest.
出处
《广西植物》
CAS
CSCD
北大核心
1997年第4期338-344,共7页
Guihaia
基金
国家自然科学基金
关键词
鸡血藤
群落学特征
热带次生植被
Millettia laptobotrya
coenological characteristics
tropical secondary community
Xishuangbanna
