| 重金属污染植物修复技术的研究与应用现状 |
| |
| 引用本文： | 韦朝阳,陈同斌.重金属污染植物修复技术的研究与应用现状[J].地球科学进展,2002,17(6):833-839. |
| |
| 作者姓名： | 韦朝阳 陈同斌 |
| |
| 作者单位： | 中国科学院地理科学与资源研究所环境修复室,北京,100101 |
| |
| 基金项目： | 国家高技术发展计划项目"重金属污染土壤的植物修复技术"(编号:2001AA640501),国家自然科学基金项目"利用植物修复砷污染土壤的土壤环境化学和生态学机理"(编号:49941003),"砷污染土地的植物修复过程与机理"(编号:40071075) |
| |
| 摘 要： | 利用植物修复污染土壤是当前国际学术界的热点研究领域。系统阐述了植物修复技术的概念与内容,对重金属污染植物修复技术研究与应用的现状、植物修复技术的优缺点进行了重点评述,介绍了国外开展的一些典型应用案例,并对这一领域的发展作了展望。
|
| 关 键 词： | 植物修复技术 土壤 重金属污染 |
| 文章编号： | 1001-8166(2002)06-0833-07 |
| 收稿时间： | 2001-09-26 |
| 修稿时间： | 2002-06-10 |
AN PVERVIEW ON THE STATUS OF RESEARCH AND APPLICATION OF HEAVY METAL PHYTORMEDIATION |
| |
| WEI Chao-yang,CHEN Tong-bin.AN PVERVIEW ON THE STATUS OF RESEARCH AND APPLICATION OF HEAVY METAL PHYTORMEDIATION[J].Advance in Earth Sciences,2002,17(6):833-839. |
| |
| Authors: | WEI Chao-yang CHEN Tong-bin |
| |
| Institution: | Department of Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China |
| |
| Abstract: | Phytoremediation—a technique using plants to remove contaminants from soils has become a topic in current research. The basic concept and contents of phytoremediation has been summarized with examples illustrated in this paper. Phytoremdiation can be subdivided into phytoextraction, phytostabilization, rhizofitration and phytovolotization. The technique are based on a series number of special plants which are tolerant to some toxic heavy metals or metalloids, and/or can accumulate these metals or metalloids in their above ground parts. Some kinds of such tolerant or accumulating plants have been intensively investigated and even applied in the field, in most cases with addition of chemical chelator such as EDTA to enhance phytoextraction effect, or chemical amendments such as lime, phosphor minerals, beringite, fly ash, sewage sludge and biosolids to enhance phytostabilization of toxic and hazardous elements. The authors also give a brief introduction of some case studies of phytoremediation on its effectiveness and economical advantage.
The paper concluded that multi-channel approaches should be taken to make phytoremediation commercial and engineering available, including more deep studies on tolerance and accumulation mechanisms, field survey at more place to try to search for more tolerant and accumulating plants which may provide great values for the breakthrough of phytoremediation technique. Studies on phytoremdiation processes such as methods for enhancing biomass and accumulation capacity of plants as well as their ecological impact are also high desirable. |
| |
| Keywords: | Phytoremediation Soil Heavy metals |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地球科学进展》浏览原始摘要信息 |
| 点击此处可从《地球科学进展》下载免费的PDF全文 |
|
