矿业废弃地中耐重金属蕨类植物的研究进展

矿业废弃地是造成环境污染、水土流失和土地荒漠化的重大隐患,其带来的后果对经济发展和人类生存有长远影响.在矿业废弃地的生态恢复中,植物修复技术是治理重金属污染土壤的有效手段,有着很大的应用潜力.其中蕨类植物因具有抗逆境能力强、生长迅速、繁殖能力强以及在环境条件适宜情况下生物量能够急剧提高等特点,可以弥补现有修复植物的缺点和不足,是较理想的植物修复资源.本文对近年来关于耐重金属蕨类植物的分布与定居状况,及其生殖对策、生态作用、耐性机制的研究进展作一简要综述,并展望了今后该领域的研究发展方向.

Research Advances on the Heavy Metal Tolerance of Pteridophyte in the Mining Wasterland

The mining wasteland is a potential threat to environmental pollution, soilerosion and land desertification.It could result in long-range impact on economic development and human living.Phytoremediation is an effective instrument which can be used to treat the soils contaminated by heavy metals,and has huge applicable potential in the ecological recovery of the mining wasteland.With the properties of strong endurance to adverse environment,fast growing and high reproduction,especially the characteristics of the fast increase in biomass under feasible environmental factor,pteridophyte can cover the shortage of the current remidiation plants,so it is an ideal remediative resources.This dissertation make a brief summary of the progress and future development prospect in research on the distribution,settlement,reproduction strategy,ecological function and tolerance mechanism of the heavy metal tolerant pteridophyte.