摘要
采用盆栽土培试验 ,研究了城市污泥的施用对土壤肥力及酶活性的影响。结果表明 :城市污泥中的重金属主要以非交换态存在 ,污泥的施用能提高土壤中的重金属含量 ;污泥的施用可以明显提高土壤肥力、增加土壤中脲酶、多酚氧化酶及中性磷酸酶的活性。
Experiment of sewage sludge on the pot cultivation was conducted and results showed that sewage sludge had high organic matters,nitrogen and phosphorous nutritions; the application of sewage sludge can improve the soil fertility and increase the urease ,polyphenol oxidase and neutral phosphatase activities. The application of sewage sludge has the potential heavy metal pollutions, but the soils in the experiment had not shown the heavy metal pollution with twice application of sludges..
出处
《华中农业大学学报》
CAS
CSCD
北大核心
2002年第1期36-39,共4页
Journal of Huazhong Agricultural University
基金
新西兰ASIA2 0 0 0项目 :城市污泥农业利用的土壤肥力与环境效应
