中文摘要：

采用样方调查方法对珠海市淇澳岛天然红树林（秋茄Kandelia candel、桐花树Aegiceras carniculatum）和人工红树林（3～5龄无瓣海桑Sonneratia apetala）的群落发展动态进行了研究．结果表明：半年时间内，秋茄种群平均地径和胸径均显著增加，高度变化小；桐花树种群平均地径、胸径和高度变化均不显著；无瓣海桑生长快速，不同年龄段的地径、胸径和高度均有不同程度的增加；在无瓣海桑人工林群落中，随着林龄的增长，物种多样性指数增加；无瓣海桑作为先锋造林树种，可有效压制互花米草Spartinaa lterniflora生长，并促进乡土红树植物定居生长．

英文摘要：

The community dynamic development of natural mangroves （Kandelia candel, Aegiceras carniculatum） and artificial mangroves （3 -5 age Sonneratia apetala） was studied by sample plots in Qi＇ ao Island, Zhuhai City, China. The results showed that： in six months＇ time, the average ground diameter and diameter at breast height （DBH） of Kandelia candel species community had a significant increase, but the height changed little; all three indexes of Aegiceras carniculatum species community had no obvious change; Sonneratia apetala grew very fast and the ground diameter, DBH and height increased in different degrees according to different age. Species diversity in the artificial Sonneratia apetala species community increased along with the growth of age. Sonneratia apetala can be planted as pioneer species to restrain Spartina alterniflora from spreading and help local mangroves settle and grow effectively in the wicked beach.