温度和湿度对土壤中PCNB降解速率的影响  

Effect of Temperature and Moisture on the Rate of PCNB Degradation in Soil

作　　者：赵晓松[1] 王玉军[1] 孙安娜[1] 王洪阶[1] 

机构地区：[1]吉林农业大学资源与环境学院,长春130118

出　　处：《吉林农业大学学报》1999年第S1期50-52,共3页Journal of Jilin Agricultural University

基　　金：吉林省科委资助项目(963511-2)

摘　　要：生物降解是土壤中五氯硝基苯(PCNB)消失的一个重要途径.在控制条件下,研究了温度和湿度对PCNB降解速率的影响.结果表明:暗棕壤床土比白浆土床土表现出较大的温度相关性,在4℃～30℃范围内,温度升高提高了微生物的激活作用,使PCNB降解速率加快.暗棕壤床土中PCNB降解对湿度更敏感.An important way for diminution of Pentachloronitrobengene was microdegradation. Under the controlled condition,laboratory assays determining the influnce of temperation and soil moisture content on the rate of PCNB microdegradation were carried out on two soil samples. Results showed that for dark brown soil, PCNB degradation showed a greater temperature dependence .with the highest Ea value. In the range 4℃ to 30℃ ,the rate of PCNB diminution was more fast as the temperature increases becouse microbe were activated, and sensitine to soil moisture content.

关 键 词：五氯硝基苯(PCNB) 生物降解 温度 湿度 土壤 

分 类 号：X53[环境科学与工程—环境工程]