广西英罗港5种红树植物群落的生物量和生产力

用样带样方调查广西英罗港经树植物群落，以树种种群为单位，选取木榄（Ｂｒｕｇｕｉｅｒａｇｙｍｎｏｒｒｈｉｚａ）红海榄（Ｒｈｉｚｏｐｈｏｒａｓｔｙｌｏｓａ）秋茄（Ｋａｎｄｅｌｉａｃａｎｄｅｌ）桐花树（Ａｅｇｉｃｅｒａｓｃｏｒｎｉｃｕｌａｔｕｍ）和白骨壤（Ａｖｉｃｅｎｎｉａｍａｒｉｎａ）测定地上部分生物量，采用径级平均木法，增加权重因素来测算林分生物量，以种群各组分的生物量除种群的平均树龄或组成（器官）

Biomass and Productivity of Five Mangrove Communities in Yingluo Bay of Guangxi

The mangrove typies and its biomasses and productivities of 5 mangrove communities have been studied in intertidal zone in Yingluo Bay of Guangxi.The results were as follows:the dominant typies in mangrove communities were Community Bruguiera gymnorrhiza,Community Rhizophora stylosa,Community Kandelia candel,Community Aegiceras corniculatum and Community Avicennia marina.The mean biomasses of the individuals of dominant populations in different mangrove communities were in the order of B gymnorrhiza (30.95 kg/individual) > R. stylosa (16.56 kg/individual) > K. candel (4.27 kg/individual) > A. marina (3.92 kg/individual) > Aegiceras corniculatum (0.37 kg/individual).The biomass of communities were in the order of Community R. stylosa (92.336 t/hm²) > Community B gymnorrhiza (75.175 t/hm²) > Community K. candel (62.757 t/hm²) > Community A. corniculatum (29.772 t/hm²) > Community A. marina (17.011 t/hm²).The productivity of communities were arranged in the order of Community R. stylosa (11.472 t/hm²·a) > Community K. candel (9.157 t/hm²·a) > Community B gymnorrhiza (5.138 t/hm²·a) > Community A. corniculatum (4.407 t/hm²·a) > Community A. marina (1.477t/hm²·a). A characteristics of above-ground biomass and prodructivity and its distribution of tissues of mangrove tree explained their adaptability to special environment in intertidal zone.