摘要
分析了黑石顶自然保护区南亚热带常绿阔叶林凋落物的季节变化及１８种常见种的落叶规律．结果表明凋落物有明显的季节变化，４ａ平均凋落量为４．６３０ｔ·ｈｍ－２·ａ－１．凋落物具体峰值出现的时期有一定程度的年际变化，雨季的４～９月和旱季的１０～３月各有一个高峰期．植物的落叶习性是适应外界环境变化的反映，根据不同种凋落叶高峰出现的时期可将植物分为３种不同类型．
This paper dealt with the seasonal change of litterfall and leaf litter among the 18 common species with time for south subtropical evergreen broad leaved forest in Heishiding nature reserve. The results were that litterfall amounted to 4 630 t·hm -2 ·a -1 averaged over 4 years, which mainly distributed in the rainy season (Apr ￣Sept ) and drought season (Oct ￣Mar ). The peak of litterfall was varied to a certain degree due to environmental fluctuation with years. The tendency for the peak of litterfall was that there were two peaks in both the drought season and the rainy season. The feature of leaf litter of community plants was adapted to changing environment. According to the peaks of leaf litter among the 18 common species, they could be divided into three types.
出处
《生态科学》
CSCD
1998年第2期14-18,共5页
Ecological Science
基金
国家自然科学基金
关键词
热带
常绿阔叶林
凋落物
凋落叶
时间动态
south subtropical evergreen broad leaved forest, litterfall, leaf litter, temporal dynamics
