三种观赏植物对Cd污染土壤酶活性的影响  

Effects of Three Ornamental Plants on Soil Enzyme Activities of Cadmium Contaminated Soils

作　　者：燕傲蕾[1] 张凤美[2] 汪楠楠[1] 吴丹[1] 王友保[1,3] 

机构地区：[1]安徽师范大学生命科学学院,安徽芜湖241000 [2]安徽师范大学环境科学学院,安徽芜湖241000 [3]安徽师范大学生物环境与生态安全安徽省高校省级重点实验室,安徽芜湖241000

出　　处：《水土保持通报》2011年第4期89-93,共5页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金项目"间作吊兰对铜陵凤丹种植地典型重金属污染的调控机理研究"(31070401);安徽省高校自然科学基金重点项目(KJ2009A104)

摘　　要：通过盆栽实验,系统研究了含羞草、白雪姬和树马齿苋对Cd污染土壤中土壤酶的修复作用。结果表明,脲酶、过氧化氢酶和磷酸酶的活性随着Cd浓度的上升不断下降,且均与Cd浓度呈显著负相关关系。3种观赏植物生长均能提高Cd污染土壤中脲酶、磷酸酶和过氧化氢酶的活性。白雪姬还能显著提高土壤蔗糖酶的活性。含羞草、白雪姬和树马齿苋对土壤酶的修复效果均表现为:脲酶>磷酸酶>过氧化氢酶>蔗糖酶,且白雪姬对土壤酶的修复效果显著高于其它两种观赏植物,说明白雪姬作为一种常见的观赏植物,在修复重金属Cd污染土壤方面具有很高的应用前景。Effects of the growth of Mimosa pudica,Tradescantia sillamontana and Porulaca afra on soil enzyme activities of cadmium contaminated soils were studied by pot experiment.The results showed that soil urease,catalase and polyphenol oxidase activities decreased gradually with the increase of Cd concentration.There was a significant negative correlation between Cd concentration and soil enzyme activities.With the seedlings growth of these three kinds of ornamental,the activities of urease,catalase and polyphenol oxidase increased,and followed the order of ureasepolyphenol oxidasecatalaseinvertase.Besides,Tradescantia sillamontana could also improve soil invertase activity.The effect of Tradescantia sillamontana on soil enzyme activities was higher than the other two ornamental.As a common ornamental plant,Tradescantia sillamontana may have great value in remediating cadmium contaminated soil.

关 键 词：观赏植物 CD污染土壤 土壤酶活性 修复 

分 类 号：X173[环境科学与工程—环境科学]