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生态学杂志 ›› 2005, Vol. ›› Issue (2): 206-208.

• 研究简报 • 上一篇    下一篇

红树林土壤吸附重金属生态功能价值估算——以海南省东寨港红树林为例

辛琨1,2, 赵广孺1,2, 孙娟1, 刘强2   

  1. 1. 中山大学生命科学院, 广州, 570215;
    2. 海南师范学院, 海口, 571158
  • 收稿日期:2004-03-31 修回日期:2004-07-04 出版日期:2005-02-10
  • 通讯作者: 赵广孺
  • 基金资助:
    国家软科学基金项目(DGS1D014);海南省教育厅基金资助项目(HJKJ2002)。

Evaluation of ecological function value of mangrove soil on absorbing heavy metals-a case study of Dongzhaigang mangrove

XIN Kun1,2, ZHAO Guangru1,2, SUN Juan1, LIU Qiang2   

  1. 1. School of Life Sciences, Zhongshan University, Guangzhou 570215, China;
    2. Hainan Normal College, Haikou 571158, China
  • Received:2004-03-31 Revised:2004-07-04 Online:2005-02-10

摘要: 红树林土壤能够吸附土壤中的重金属从而实现其净化功能.本文对海南东寨港国家级红树林地区土壤重金属元素Cu、Pb、Zn、Cd的含量进行比较分析.结果表明,表土(0~20 cm深)4种重金属元素含量分别是5.04、10.6、20.06和0.06 μg·g-1.根据人工吸收土壤中重金属的成本,运用替代法和影子工程法对2056 hm2东寨港红树林生态系统土壤吸附重金属的功能价值进行估算,估算结果表明,土壤吸附重金属的功能价值为5462万元.

关键词: 遮荫宽度, 相对光照强度, 叶面积密度函数, 消光系数

Abstract: Based on samples collected from Dongzhaigang mangrove ecosystem of Hainan,the concentrations of Cu,Pb,Zn and Cd in soil were investigated and compared.The results showed that the concentrations of four metals were 5.04,10.36,20.06 and 0.06 μg·g-1 respectively in the 20 cm range of surface.Employing the replacing and shadow engineering methods,the function value of mangrove soil on absorbing heavy metals was evaluated,which indicated that the value of the natural mangrove soil to absorb heavy metals in Dongzhaigang mangrove ecosystem (about 2 065 hm2) was about 54.62 million yuan.

Key words: Shadow width, Relative light illuminance, Leaf area density function, Light wakening coefficient

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