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林业科学 ›› 2008, Vol. 44 ›› Issue (5): 6-10.doi: 10.11707/j.1001-7488.20080504

• 论文 • 上一篇    下一篇

马尾松林对土壤重金属的修复进程*

陈文德1,2 李贤伟1 彭培好2,3   

  1. (1. 四川农业大学生态林业工程省级重点实验室 雅安625014;2. 成都理工大学地球科学学院 成都610059; 3. 重庆大学资源环境学院 重庆400716)
  • 收稿日期:2007-03-09 修回日期:1900-01-01 出版日期:2008-05-25 发布日期:2015-04-22

Phytoremediation Process of Pinus massoniana to the Soil Contaminated with Heavy Metals

Chen Wende1,2,Li Xianwei1,Peng Peihao2.3

  

  1. (1. Provincial Key Laboratory of Ecological Forestry Engineering, Sichuan Agriculture University Ya’an 625014;2. College of Earth Science, Chengdu University of Technology Chengdu 610059; 3.College of Resource and Environment, Chongqing University Chongqing 400716)
  • Received:2007-03-09 Revised:1900-01-01 Online:2008-05-25 Published:2015-04-22

摘要:

依据生物地球化学循环理论构建植物对土壤重金属修复的时间效应数学模型,对成都马尾松林地土壤母岩、土壤、活植物体和枯落物的5种土壤重金属污染元素(As、Hg、Pb、Al与Cd)含量进行分析,并对马尾松林土壤修复进程模拟预测。结果表明:马尾松林吸收土壤5种污染元素的能力较强,尤其是对Pb、Al的吸附,在一定时间内,可使受污土壤达到完全净化态势。

关键词: 马尾松, 土壤, 重金属, 生物修复, 预警模型

Abstract:

Based on biogeochemistry cycle theory, the paper constructed a bioremediation time effect model of heavy metals in the soil by plant, and we used Pinus massoniana plantation as an example which was successfully used in Chengdu Plain, five geochemical pollution elements (As, Hg, Pb, Al and Cd) in the soil material, soil, plants and litters were investigated. Accordingly, a warning model of the forest eco geochemical was developed. The simulation results showed that the phytoremediation capabilities of P. massoniana forest for soil pollution elements of As、Hg、Pb、Al、Cd were great, especially for Pb and Al, The contaminated soil with the heavy metals would be completely purified by the plantation in a period of time.

Key words: Pinus massoniana, soil, heavy metal, bioremediation, early warning model