应用生态学报2012，Vol.23Issue(12)：3474-3478,5.
芒颖大麦草对菱镁矿粉尘污染的生态适应性
Ecological adaptability of Hordeum jubatum to magnesite dust
摘要
Abstract
Hordeum jubatum was pot-cultured with the soil sprayed with different amounts of magnesite dust (0, 1% , 5% , 10% , 15% , 20% , and 30% ) to study the magnesium (Mg) tolerance of the plant. After sprayed onto soil surface, the magnesite dust could rapidly form a crust. When the amount of the sprayed dust was bigger than 20% , soil pH increased significantly, soil conductivity had a gradual decrease, whereas soil organic matter content increased after an initial decrease. With the increasing amount of sprayed magnesite dust, the leaf chlorophyll content of H. jubatum increased first and decreased then, while the leaf soluble protein content showed a trend of increase -decrease - increase. H. jubatum had stronger tolerance to Mg. When the soil Mg content was as high as 4.61 g·kg-1, H. jubatum could still grow well, indicating that this plant species could be used as an appropriate candidate for the ecological restoration of waste lands in magnesite mining areas.关键词
芒颖大麦草/镁/菱镁矿/生态恢复Key words
Hordeum jubatum/ magnesium/ magnesite/ ecological restoration分类
资源环境引用本文复制引用
方英,赵琼,台培东,吴海燕,李培军,秦秦,邓鑫..芒颖大麦草对菱镁矿粉尘污染的生态适应性[J].应用生态学报,2012,23(12):3474-3478,5.基金项目
"十二五"国家科技支撑计划项目(2012BAC13B03)和沈阳大学区域污染环境生态修复教育部重点实验室基金项目资助. （2012BAC13B03）
