我国土壤重金属污染植物吸取修复研究进展

我国从上世纪90年代中后期开始土壤重金属（含类金属砷）污染的植物吸取修复研究及技术探索，先后发现了一批具有较高研究价值和应用前景的铜、砷、镉、锰等重金属的积累或超积累植物，并从重金属耐性和超积累生理机制、植物吸取修复的根际过程与机制、吸取修复强化措施和修复植物处置与资源化利用等方面进行了研究，同时开展了植物吸取修复技术的示范与应用，已有一些较成功的植物修复工程应用案例，使我国重金属污染土壤植物修复技术，尤其是植物吸取修复技术在国际上产生了较强的影响力。本文就近年来我国土壤重金属污染植物吸取修复研究进展进行了综述，并对今后的发展趋势进行了展望。

Research Progress on the Phytoextraction of Heavy Metal Contaminated Soils in China

From the late of 1990s, researches on phytoextraction for heavy metal （and metalloid element such as arsenic） contaminated soils were begun in China, and a number of plant species or varieties with high re-search value and application prospect that can accumulate/hyperaccumulate copper, arsenic, cadmium, manga-nese or other heavy metals were reported. Many researches have been conducted on physiological mechanisms of heavy metal tolerance and hyperaccumulation, rhizospheric processes and mechanisms of phytoextraction, enhancing measures of phytoextraction efifciency, post-harvest processing and resourceful use of metals, and so on. Moreover, a number of applied researches and demonstration were carried out, and there were some suc-cessful phytoremediation engineering application cases. These also enable the remediation technology of heavy metal contaminated soil, especially phytoextraction technology, to produce a strong inlfuence in the world. In this paper, recent research progress on phytoextraction of heavy metal contaminated soils in China were re-viewed, and future trends were also discussed.