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应用生态学报 ›› 1990, Vol. 1 ›› Issue (3): 209-213.

• 研究论文 • 上一篇    下一篇

海南岛海莲红树林的钙镁累积和循环

林鹏, 林明祥   

  1. 厦门大学生物学系, 厦门 361005
  • 收稿日期:1989-07-14 出版日期:1990-07-25 发布日期:1990-07-25
  • 基金资助:

    国家自然科学基金项目

Accumulation and biological cycle of elements Ca and Mg in Bruguiera sexangula community of Hainan Island in China

Lin Peng, Lin Mingxiang   

  1. Dept. of Biology, Xiamen University, Xiamen 361005
  • Received:1989-07-14 Online:1990-07-25 Published:1990-07-25

摘要: 本文是海南东寨港红树林研究的一部分, 主要讨论55年生海莲林的Ca、Mg元素的累积和生物循环。试验结果表明, 在海莲群落现存量中, 含有Ca、Mg总量分别为3258.1和597.9kg·ha-1, 其中地上部分别为1891.9和247.1kg·ha-1, 地下部分别为1366.2和350.8kg·ha-1。该群落的Ca、Mg元素的生物循环中, 年吸收量分别为382.0和100.4kg·ha-1, 存留量131.3和20kg·ha-1, 归还量为250.7和80.4kg·ha-1。Ca的周转期为13年, 较Mg8年为慢。

关键词: 红树林, 生物循环, 钙、镁积累

Abstract: This paper is a part of studies of mangrove forest in Dongzhai harbour of Hainan Island in China. It deals mainly with the accumulation and biological cycle of elements Ca and Mg of 55-year-old Bruguiera sexangula community. The main results of the study are as fallows: 1) The total amounts of Ca and Mg in standing crop of this community were 3258.1kg·ha-1 and 597.9kg·ha-1 respectively among which, 1891.9kg·ha-1 of Ca and 247.1kg·ha-1 of Mg contained in the aerial part, and 1366.2kg·ha-1 of Ca and 350.8kg·ha-1 of Mg contained in the ground part. 2) In the biological cycles of Ca and Mg of this stand, 382.0kg·ha-1 of Ca and 100.4kg·ha-1 of Mg were annually uptook by the community, among which 250.7kg·ha-1 of Ca and 80.4kg·ha-1 of Mg were returned and 131.3kg·ha-1 of Ca and 20.0kg·ha-1 of Mg were retained. 3) The turnover period of Mg (8 yrs.) was faster than that of Ca (13 yrs.).

Key words: Mangrove, Biological cycle, Accumulation Ca and Mg