啤酒污泥和草木灰对镉形态和土壤酶的影响  

Effects of Beer Sludge and Wood Ash on Remediation of Cadmium Contaminated Soil

作　　者：朱雅兰[1] 李新颖[1] 

机构地区：[1]黄石理工学院环境科学与工程学院,湖北黄石435003

出　　处：《湖北农业科学》2010年第5期1053-1056,共4页Hubei Agricultural Sciences

基　　金：国家高技术研究发展计划(2006AA06Z350;2007AA10Z408);省教育厅B类重点项目(B20053003)

摘　　要：利用盆栽试验,研究施用啤酒污泥、草木灰及两种改良剂配施对镉污染土壤pH值、土壤镉形态和土壤酶的影响。结果表明,土壤中生物有效性高的可交换态(含水溶态)镉含量减少,而有机结合态和无机结合态镉含量升高,土壤酶活性提高。然而,不同品种的啤酒污泥和草木灰具有不同的性质,对于不同的作物和土壤,改良剂的施用量需要进一步的探究。The effects of beer sludge, wood ash and their mixture on the pH, form of Cadmium （Cd2＋） in soil and soil enzyme activities were investigated in this paper. The results showed that the application of these amendments decreased the content of exchangeable Cd2＋（including soluble Cd2＋） with the high bioavailability, while increased the content of organicbound and inorganic-bound Cd2＋, the improved soil enzyme activities were also observed. However, due to different properties of different types of beer sludge and wood ash, its application in different types of soils and crops need a further studied in the future.

关 键 词：啤酒污泥 草木灰 土壤Cd形态 土壤酶 

分 类 号：S154.2[农业科学—土壤学] X53[农业科学—农业基础科学]