镉污染对红壤和潮土微生物的生态毒理效应

	镉污染对红壤和潮土微生物的生态毒理效应
其他题名	The Ecotoxicity Effects of Cadmium on Microorganism in Udic-Ferrosols and Aquic-Cambosols
	程金金 ; 宋静 ; 陈文超 ; 余海波 ; 黄玉娟 ; 吴龙华 ; 骆永明
发表期刊	生态毒理学报
ISSN	1673-5897
	2013
卷号	8 期号:4 页码:577-586
关键词	Cd 红壤潮土微生物生态毒理
产权排序	中国科学院南京土壤研究所土壤环境与污染修复重点实验室;中国科学院大学;中国科学院烟台海岸带研究所;
通讯作者	宋静 E-mail:[email protected]
作者部门	中国科学院海岸带环境过程与生态修复重点实验室
英文摘要	以土壤微生物生物量碳(Cmic)、土壤酶活性及微生物多样性为微生物学指标,以0.01mol·L-1CaCl2作为Cd有效态提取剂,以江西红壤和天津潮土为供试土壤,在室内25℃连续培养28d的条件下探讨了外源Cd对土壤微生物的生态毒理效应。结果表明:1)不同培养时间潮土CaCl2提取态Cd含量均显著低于红壤,潮土微生物受到Cd的抑制作用也明显小于红壤。2)各微生物指标的敏感性不同,并受土壤类型和培养时间的影响,其中,脱氢酶的敏感性强于脲酶,微生物功能多样性指标中BiologEco板上每孔的平均吸光值(AWCD)的敏感性强于Shannon指数;Cmic、脲酶、脱氢酶、AWCD和Shannon指数均...
中文摘要	Soil microbial biomass C （Cmic）, enzyme activities and microbial diversity were chosen as soil microbial indicators and the soil available Cd was determined by 0.01 mol L-1 CaCl2 extraction. A laboratory incubation experiment was conducted to study toxic effects of Cd on soil microbial indicators in an udic-ferrosols from Jiangxi and an aquic-cambosols from Tianjin at 25℃ for 28 days. The results showed that CaCl2-extractable Cd in aquic-cambosols was significantly lower than that in udic-ferrosols at different incubation time. And the microbial activity was less inhibited in the aquic-cambosols than that in the udic-ferrosols. The sensitivity of different microbial indicators to Cd was influenced by soil properties and incubation time. Dehydrogenase was more sensitive than urease. The average well color development （AWCD） was more sensitive as a microbial functional diversity index than Shannon index. All of the microbial indicators tested in aquic-cambosols were more sensitive in udic-ferrosols than these in aquic-cambasols, which showed good response to exogenous Cd and therefore can be used in the microbial toxicity test of Cd pollution. There was significant time effect of Cd toxicity to soil microbial indicators. The toxic effect of Cd on Cmic at day 14 was greater than that at day 28, but the toxic effect on dehydrogenase and urease at day 14 was less than that at day 28. The 28-day incubation time was recommended for future microbial toxicity test of Cd pollution. At day 28, the EC10 of Cd for Cmic, dehydrogenase, urease, AWCD and Shannon index were 1.13, 0.26, 0.93, 0.08 and 22.71 mg·kg-1 in udic-ferrosols, respectively. And in aquic-cambosols, the EC10 of Cd for these tested microbial indicators were 1.97, 0.69, 13.12, 0.09 and 〉 200 mg·kg-1, respectively.
资助机构	环保公益性行业科研专项经费项目(201009032);; 农业863项目(2012AA101402-2);; 国家自然科学基金重点项目(41230858)
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:4943116
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/6839
专题	中国科学院海岸带环境过程与生态修复重点实验室
推荐引用方式 GB/T 7714	程金金,宋静,陈文超,等. 镉污染对红壤和潮土微生物的生态毒理效应[J]. 生态毒理学报,2013,8(4):577-586.
APA	程金金.,宋静.,陈文超.,余海波.,黄玉娟.,...&骆永明.(2013).镉污染对红壤和潮土微生物的生态毒理效应.生态毒理学报,8(4),577-586.
MLA	程金金,et al."镉污染对红壤和潮土微生物的生态毒理效应".生态毒理学报 8.4(2013):577-586.

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