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作 者 ：林鹏, 卢昌义, 王恭礼, 陈焕雄

期 刊 ：植物生态学报 1990年 14卷 1期 页码：69-74

关键词：红树林；海莲；凋落物；

Keywords:Hainan island, Mangrove, Bruguiera sexangula, Litter fall,

摘 要 ：本文应用凋落物收集网对海南岛海莲红树群落进行连续4年(1984.1—1987.12)的凋落物动态研究。结果表明： (1)在保护良好的河港海滩上，海莲群落的年凋落物量高达1255g／m2，是热带地区凋落物量最大的群落类型之一；与世界上红树群落凋落物量相比处于较高水平。(2)4年平均凋落物各组分占总量的比例为叶64.32%、花10.63%，果21.34%、枝3.71%。 (3)月凋落物量(Y，g／m2)与月均气温(X，℃)的回归公式为 Y=5.009X–13.18(r=0.44**，df=46)，相关极显著。 (4)不同年份凋落物的变化率R=1.33。

Abstract:The litter fall of Bruguiera sexangula mangrove community in Hegang Village of Hainan Island has been studied for a period of 4 years form 1984 to 1987.The results showed that: (1) Mean annual litter fall production was 1255 g/m2 in this well-protected mangrove forest, which is one of the most productive tropical communities in litter production. This amount of litter fall is of a higher level as compared with those of other mangrove forests in the world. (2) The leaf, flower, fruit and twig litter fall proportions in the 4 years were 64.32%, 10.63%, 21.34% and 3.71% respectively. (3) The regression equation of monthly litter fall (Y,g/m2) and monthly mean air temperature (X,℃) was Y=5.009X–13.18 (r=0.44, df= 46) showing a greatly significant relation. (4) Litter fall yearly fluctuation rate R= 1.33.

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