海莲红树林的生物量和生产力

Biomass and Productivity of Sruguiera sexangula Mangrove Forest in Hainan Island, China

本文是海南东寨港红树林研究的一部分。主要讨论55龄海莲群落的生物量和生产力。测定结果表明:海莲群落的植物生物量为 42.03kg/m^2,其中地上部为24.85 kg/m^2,地下部为 17.18kg/m^2,地下部占总量的40.9％。1983年初级净生产量为2.95kg/m^2·a,其中叶等年凋落物为 1.31 kg/m^2·a,占总量的44.4％。大量的凋落物有利海湾河口水产渔业的发展。

This paper is a part of the studies on the mangrove forest in the estuary area of Dongzhai Harbour of Hainan Island , It deals mainly with the biomass and productivity of a 55 year-old Bruguiera sexangula forest.The main results of the measurements are as follows: 1. The stan ding crop of this community was 42.03 kg/m2, in which the biomass of aerial parts was 24.85 kg/m2 and underground part biomass was 17.18kg/m2 ,i.e.40,9%.2. The net primary production of this com munity in 1983 was 2.95 kg/m2 ?a , in which annual litter fall of leaves, fruits and flowers was 1.31 kg/m2. a, i.e. 44.4% .The great amount of litter fall is beneficial to the development of fishery and aquatics in the estuary.