干旱区生态环境知识资源中心(Arid): 干旱区污灌农田土壤Cu、Ni复合污染与土壤酶活性的关系

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	干旱区污灌农田土壤Cu、Ni复合污染与土壤酶活性的关系
其他题名	Relationships Between Soil Enzymatic Activities and Cu-Ni Compounds Pollution in the Wastewater Irrigated Farmland in Arid Region
	曹靖; 贾红磊; 徐海燕; 吕玥; 苏珍贞; 张庆福
ISSN	1672-2043
出版年	2008
卷号	27 期号:5 页码:1809-1814
中文摘要	以重工业城市甘肃省金昌市农业土壤为主要研究对象，采用室内分析测试方法，就污灌土壤重金属复合污染对酶的活性及微生物学参数进行了调查研究。结果表明，污灌区农田土壤中Cu、Ni重金属含量均超过土壤环境质量标准（GB15618--1995）中一级标准限量，但未达到二级标准。污灌区农田Cu、Ni复合污染对土壤脲酶、酸性磷酸酶和碱性磷酸酶活性均表现为激活作用；对过氧化氢酶和转化酶的抑制作用较小，而对多酚氧化酶的抑制作用较强，因此，多酚氧化酶可做为土壤Cu、Ni复合污染监测和评价的主要生化指标。污灌农田土壤微生物生物量和基础呼吸速率显著高于清灌土壤。除pH与转化酶活性之间呈显著（P〈0．01）正相关关系外，其他土壤理化因子与土壤酶活性和微生物参数之间均呈显著（P〈0．05或P〈0．01）的正或负的相关关系，在污灌土壤中Cu、Ni复合污染对酶活性所表现出的屏蔽效应可能受到土壤有机质的影响。
英文摘要	The wastewater irrigated farmland soils from suburb around Jinchang City, Gansu Province, P. R. China, a typical industrialized city, were investigated in terms of enzymatic activities and microbial biomass resulted from soil heavy metal combined pollution. The results showed that the concentrations of Cu and Ni in the wastewater irrigated farmland soils were higher than the first-class limit value but lower than the second-class limit value set in the national Soil Environmental Quality Standard GB15618--1995. Cu-Ni combined pollution in the wastewater irrigated farmland soils exhibited stimulating effect on soil urease, acid phosphatase and alkaline phosphatase activities, but strong inhibition effect on polyphenol oxidase with less inhibition effect on peroxidase and invertase activities. This implied that the polyphenol oxidase could be used as the main biochemical index for monitoring and evaluating soil quality of Cu-Ni combined soils. The soil microbial biomass and basal respiration in the wastewater irrigated farmland soils were significantly higher than those in non-irrigated farmland soils. There were significant positive or negative relationships between the soil physical or chemical properties and the soil enzyme activities or microbial biomass parameters with the exception of the remarkably positive relationship between pH and invertase activities, and the protective effect of enzyme activities resulted from Cu-Ni combined pollution may be affected by soil organic matters.
中文关键词	Cu、Ni复合污染 ; 污灌 ; 土壤酶活性 ; 土壤微生物量碳 ; 土壤呼吸
英文关键词	Cu-Ni compound pollution wastewater irrigation soil enzyme activities soil microbial biomass C soil respiration
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3403443
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222614
作者单位	兰州大学生命科学学院, 干旱与草地生态教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	曹靖,贾红磊,徐海燕,等. 干旱区污灌农田土壤Cu、Ni复合污染与土壤酶活性的关系[J]. 兰州大学,2008,27(5):1809-1814.
APA	曹靖,贾红磊,徐海燕,吕玥,苏珍贞,&张庆福.(2008).干旱区污灌农田土壤Cu、Ni复合污染与土壤酶活性的关系.,27(5),1809-1814.
MLA	曹靖,et al."干旱区污灌农田土壤Cu、Ni复合污染与土壤酶活性的关系".27.5(2008):1809-1814.