为了比较湛江高桥潮间带不同植物生境的大型底栖动物次级生产力,根据2010年4个季度湛江高桥潮间带生境的大型底栖动物数据,运用brEy经验公式计算不同植物生境的大型底栖动物次级生产力.结果表明:湛江高桥红树林和盐沼湿地不同生境大型底栖动物平均次级生产力为11.77gAfdM·M-2·A-1.其中,无瓣海桑生境次级生产力最高,为18.16gAfdM·M-2·A-1,其次是桐花树、盐地鼠尾粟和木榄生境,分别为17.67、8.34和2.92gAfdM·M-2·A-1.在4种生境中,木榄生境的年生产力/年均生物量(P/b)最高,为2.38,其次是无瓣海桑、盐地鼠尾粟和桐花树生境,分别为1.23、0.99和0.48.湛江高桥潮间带不同植物生境大型底栖动物次级生产力和P/b值的差异主要与总有机碳含量、食物类型和动物个体大小有关.In order to understand the secondary productivity of macrobenthos in different botanic habitats in intertidal zone in Gaoqiao of Zhanjiang,the Brey's empirical formula was applied to calculate the secondary productivity based on the investigations in the habitats of Sonneratia apetala,Aegiceras corniculatum,Sporobolus virginicus,and Bruguiera conjugate in four seasons,2010.The secondary productivity of the macrobenthos in the habitats in four seasons was averagely 11.77 g AFDM·m-2·a-1,being the highest in S.apetala habitat(18.16 g AFDM·m-2·a-1),followed by in A.corniculatum habitat(17.67 g AFDM·m-2·a-1),S.virginicus habitat(8.34 g AFDM·m-2·a-1),and B.conjugate habitat(2.92 g AFDM·m-2·a-1).The P/B ratio of the macrobenthos was the highest in B.conjugate habitat(2.38),followed by in S.virginicus,S.virginicus,and A.corniculatum habitats,with the values of 1.23,0.99,and 0.48,respectively.The differences in the secondary productivity and P/B ratio of the macrobenthos among the four botanic habitats were mainly related to the sediment total organic carbon,food type,and macrobenthos individual size.国家自然科学基金重点项目(30930017)资
