生物有机肥对酞酸酯污染农田土壤的微生物效应研究  

Effects of PAEs on Soil Microbe in Agricultural Soil Amended with Organic Fertilizer

作　　者：于小彬[1] 宗春琴[1] 张裕[1] 周夏曦[1] 高军[1,2] 

机构地区：[1]淮阴工学院生命科学与化学工程学院,江苏淮安223003 [2]江苏省环洪泽湖生态农业生物技术重点实验室,江苏淮安223300

出　　处：《安徽农业科学》2011年第35期21715-21716,21830,共3页Journal of Anhui Agricultural Sciences

基　　金：江苏省教育厅自然科学基金项目(08KJB610001);江苏省环洪泽湖生态农业重点实验室资助项目(HZHL0813);淮阴工学院自然科学基金计划项目(351707077)

摘　　要：[目的]为酞酸酯污染农田土壤生物修复提供参考。[方法]采用室内培养,分析酞酸酯污染土壤以及加入灭菌与未灭菌处理有机肥的酞酸酯污染土壤中微生物数量、生物量碳以及土壤基础呼吸的变化特征。[结果]50 mg/kg土壤浓度的DBP与DEHP主要影响土壤细菌、真菌数量,但对放线菌数量几乎没有影响。无论添加灭菌还是未灭菌的有机肥,均能显著降低DBP与DEHP对土壤细菌、真菌以及微生物生物量碳与土壤基础呼吸的抑制效应。[结论]农田土壤有机肥的施用加强了土壤对酞酸酯有机污染物的缓冲能力,提高了土壤自身的生物修复功能。[Objective] The study aimed to supply a reference for bioremediation agricultural soil contaminated with phthalate acid esters（PAEs）.[Method] The soil microbe population,microbial mass C and soil basic respiration were analyzed in PAEs contaminated soils amended with sterilized/unsterilized organic fertilizer in lab.[Result] The effects of DBP/DEHP at 50 mg/kg in soils on soil bacteria and fungi were observed,whereas the effects on actinomycetes weren＇t presented.The depressive effects of DBP/DEHP on soil bacteria and fungi,microbial mass C and soil basic respiration were significantly weakened by sterilized/unsterilized organic fertilizer in soils.[Conclusion] The buffering capacity of agricultural soil for PAEs organic contaminant and soil bioremediation function for itself were enhanced by applying organic fertilizer to agricultural soil.

关 键 词：酞酸酯 有机肥 土壤微生物效应 

分 类 号：S154.3[农业科学—土壤学]