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本文根据样地调查及定位观测数据,分析了海南岛尖峰岭地区热带半落叶季雨林的群落学特征及游耕后的演替趋向。其外貌主要由纸质叶、单叶、小型叶为主的常绿阔叶小高位芽植物所决定。在干季,热带落叶树种(占总种数的33.5％)全部落叶,常绿树种也部分落叶,外貌色调灰暗,雨季全绿,季节变化明显。林分由泛热带落叶和常绿树种组成;结构简单,乔木两层,以落叶树种为优势;林木较矮、根深、萌芽力强。灌木具刺种类较多。藤本、附生植物较少。板根现象不明显。在干热气候条件作用下,群落较稳定;经反复刀耕火种,立地条件恶化,为白茅等喜光植物群落所更替。
Based on the sample survey and location observation data, the community characteristics of the tropical semi-deciduous monsoon forest in Jianfengling, Hainan Island, and the succession trend after the tillage tillering were analyzed. Its appearance mainly by the paper leaves, single leaves, small leaf-based evergreen broadleaf small high bud plant decision. In the dry season, the tropical deciduous tree species (33.5% of the total species) deciduous, evergreen species also part of the deciduous, dark gray appearance, rainy season all-green, significant seasonal changes. The stands are composed of pan-tropical deciduous and evergreen species; the structure is simple, with two layers of trees and the deciduous tree species as the dominant species; the trees are short, deep and sprouting. Shrub species with more thorns. Fujimoto, epiphytes less. Flat root phenomenon is not obvious. Under the action of dry and hot climatic conditions, the community is more stable; after repeated slash-and-burn cultivation, site conditions are deteriorated, and the communities of Hippophae rhamnoides such as Himalayan weed are replaced.