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～ 2 0cm深 ) 4种重金属元素含量分别是 5 0 4、1 0 36、2 0 0 6和 0 0 6 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 2 0 5 6hm2 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 5 4 6 2万元。
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.
出处
《生态学杂志》
CAS
CSCD
北大核心
2005年第2期206-208,共3页
Chinese Journal of Ecology
基金
国家软科学基金项目 (DGS1D0 14 )
海南省教育厅基金资助项目(HJKJ2 0 0 2 )。
