陈海燕;海热提;李千婷;

• 1:北京化工大学环境科学与工程技术中心

摘要(Abstract)：

为探讨废塑料资源化产品对土壤酶活性的影响,通过室内培养试验研究了废塑料资源化产品暴露后土壤中过氧化氢酶和脲酶活性的变化.结果表明:废塑料资源化产品对土壤酶活性具有显著影响.250mg·kg-1、1250mg·kg-1、7250mg·kg-1废塑料资源化产品浓度处理对土壤中过氧化氢酶和脲酶影响明显不同.在土壤培养l～5d内,添加废塑料资源化产品的3个浓度处理土壤中过氧化氢酶活性显著低于对照(p<0.05),表现出明显的抑制作用,且浓度越高抑制作用越强.而后(5～35d),低浓度(250mg·kg-1)废塑料资源化产品对土壤过氧化氢酶一直表现为激活作用,但是,高浓度(1250mg·kg-1和7250mg·kg-1)处理对土壤过氧化氢酶活性则表现为激活-抑制-激活作用,且抑制、激活程度与处理浓度成呈相关.3个废塑料资源化产品浓度处理对脲酶活性影响在培养1～28d内主要是激活作用,且激活作用随着处理浓度的增大而增强,而后(28～35d)对脲酶活性表现为抑制作用.

关键词(KeyWords)： 废塑料;资源化产品;过氧化氢酶;脲酶;活性

Abstract:

Keywords:

基金项目(Foundation): 国家“十一五”重大科技支撑计划课题(No.2007BAC16B03)

作者(Author): 陈海燕;海热提;李千婷;

Email:

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