摘要
植物修复是利用植物吸收、降解、挥发、根滤、稳定、泵吸等作用机理,达到去除土壤、水体中污染物,或使污染物固定以减轻其危害性,或使污染物转化为毒性较低化学形态的现场治理技术。植物修复对于重金属污染土壤的治理修复具有重要意义。已有研究在累积与超累积植物的寻找筛选、植物对重金属等有害物的耐毒和解毒机理、植物修复现场环境调控及根际处理技术等方面取得了大量成果。现代分子生物学、基因工程技术发展有可能使植物修复技术取得重大突破。
Remediation of soil contaminated by heavy metals remains a difficult problem in the world. Phytoremediation is a new technique to eliminate contaminants or weaken their adverse effects on ecosystem by such means as phytoextraction, phytodegradation, phytovolatilization, rhizofiltration, phytostabilization and hydraulic pumping. Hyperaccumulator and accumulator plants play an important role in soil remediation. In the past decade some achievements have been made on the selection of hyperaccumulator plants and investigation of their mechanism on detoxification and hyperaccumulation with the help of molecule biology and gene technique as well as rhizosphere treatment and planting management. With the introduction of molecular biology and gene technique, we can expect a breakthrough in this technology in near future.
出处
《物探与化探》
CAS
CSCD
2003年第6期473-475,489,共4页
Geophysical and Geochemical Exploration
基金
国家973项目(G19990457)资助
关键词
土壤污染治理
植物修复
重金属污染
超累积植物
remediation of soil contamination
phytoremediation
heavy metal contamination
hyperaccumulator plant
