本文研究了广东湛江红树林自然保护区高桥镇红寨村及德耀村海滩红树植物的种群分布格局与生物量。结果表明：５年生桐花树群落、白骨壤群落、秋茄群落、１０年生木榄群落、３０年生红海榄群落的总生物量分别为５５４７５ｇ／ｍ２、１６３７０１ｇ／ｍ２、６２６４４８ｇ／ｍ２、４１３８４３ｇ／ｍ２、９６１０２０ｇ／ｍ２；其中地下部分生物量占总生物量的比例依次为３２２８％、４５４５％、４１３１％、２９８５％和２８２９％。计算得Ｓｈａｎｎｏｎ－Ｗｉｅｎｅｒ物种多样性指数为２２３２。种群的分布格局中桐花树、白骨壤、红海榄和秋茄种群为集群分布，而木榄种群为随机分布。 In this paper, the population distribution patterns and biomass of mangroves in Hongzhai Village and Deyao Beach of Gaoqiao Town, Zhanjiang Mangrove Nature Reserve in Guangdong Province were studied. The results showed that the total biomass of 5-year-old Aegiceras corniculatum community, Avicennia marina community, Candel szechuanica community, 10-year-old Mulun community and 30-year-old Rhizophora stylosa community were 55475g / m2,163701g / m2,626448g / m2,413843g / m2,961020g / m2. Among them, the underground biomass accounted for 3228%, 4545%, 4131%, 2985% and 2829 %. The calculated Shannon-Wiener species diversity index was 2.23. The population distribution pattern of Aegiceras corniculatum, Avicennia marina, Rhizophora stylosa and Candelssdae is cluster distribution, while that of Mulu population is random distribution.