菲和镉复合污染对土壤微生物的生态毒理效应  

ECOTOXICOLOGICAL EFFECT OF PHENANTHRENE AND Cd COMBINED POLLUTION ON SOIL MICROBE

作　　者：沈国清[1] 陆贻通[1] 洪静波[1] 程国华[1] 

机构地区：[1]上海交通大学资源环境科学系,上海201101

出　　处：《环境化学》2005年第6期662-665,共4页Environmental Chemistry

基　　金：国家973项目(2004CB41850);国家自然科学基金项目(20337010);上海市基础研究重点项目(04JC14051)资助.

摘　　要：以土壤酶活性和微生物数量作为生态毒理指标,通过模拟试验,比较分析多环芳烃菲和重金属镉单一与复合污染对土壤微生物的生态毒理效应.结果表明,菲和镉复合污染对土壤蔗糖酶、脲酶和脱氢酶均具有协同抑制作用;而对磷酸酶和微生物的数量具有拮抗抑制作用.菲和镉复合污染及菲单一污染对土壤微生物的活性抑制率从大到小依次为:放线菌>真菌>细菌;镉单一污染则为:真菌>细菌>放线菌.The effects of phenanthrene and cadmium （Cd） combined and simplex pollution on soil enzyme activities （sucrase, urease, dehydrogenase, phosphatase） and microbial community were studied by simulative experiment The results showed that there existed synergistic inhibiting effect on sucrase, urease and dehydrogenase and antagonistic inhibiting effect on phosphatase and soil microbial community under the compound pollution of phenanthrene and Cd. The order of inhibiting rate of soil microbial activity under phenanthrene and Cd combined pollution and phenanthrene simplex pollution were proved to be： actinomyces 〉 fungi 〉 bacteria; the order under Cd simplex pollution is fungi 〉 bacteria 〉 actinomyces.

关 键 词：菲 镉 复合污染 土壤微生物 生态毒理效应. 

分 类 号：X172[环境科学与工程—环境科学]