| 摘要: |
| 用样带样方调查广西英罗港红树植物群落。以树种种群为单位,选取木榄(Bruguiera gymnorrhiza)、红海榄(Rhizophora stylosa)、秋茄(Kandelia candel)、桐花树(Aegiceras corniculatum)和白骨壤(Avicennia marina)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)年龄得年平均净生产量。结果表明:英罗港的红树林群落主要有木榄群落、红海榄群落、秋茄群落、桐花树群落和白骨壤群落。各群落优势种群平均单株生物量为木榄30.95千克/株 > 红海榄16.56千克/株 > 秋茄4.27千克/株 > 白骨壤3.92千克/株 > 桐花树0.37千克/株。群落生物量的大小顺序是红海榄群落92.336t/hm2 > 木榄群落75.175t/hm2 > 秋茄群落62.757t/hm2 > 桐花树群落29.772t/hm2 > 白骨壤群落17.011t/hm2。群落生产力为红海榄群落11.472t/hm2·a > 秋茄群落9.157t/hm2·a > 木榄群落5.138t/hm2·a > 桐花树群落4.407t/hm2·a > 白骨壤群落1.477t/hm2·a。生物量和生产力及其器官分配的特点反映了红树植物对潮滩特殊生境的适应。 |
| 关键词: 红树植物 群落 生物量 生产力 |
| DOI： |
| 投稿时间：1998-12-21修订日期：1999-04-26 |
| 基金项目:国家"九五"科技攻关专题(编号:960070406)的部分研究内容。 |
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| Biomass and Productivity of Five Mangrove Communities in Yingluo Bay of Guangxi |
|
Wen Yuanguang
|
| (Forestry College, Guangxi University, 16 Yongwulu, Nanning, Guangxi, 530001) |
| Abstract: |
| 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. |
| Key words: mangrove community biomass productivity |
