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氯氰菊酯与铜复合污染对土壤微生物群落的影响 被引量:3

Structural Diversity of Soil Microbial Communities as A Result of Combined Applications of Copper and Cypermethrin
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摘要 采用常规手段研究了土壤在受氯氰菊酯、铜及二者复合污染后土壤呼吸率及微生物量碳的变化,采用了分离效果较好的双变性梯度凝胶电泳(DG-DGGE)技术研究微生物群落的变化。结果表明,低浓度的铜与高浓度的氯氰菊酯复合污染更能促进微生物量碳及土壤呼吸率的增加,微生物的群落结构也会受到明显影响。而两种污染物分别单独作用时,铜对微生物的胁迫更大,有铜组和无铜组在DGGE条带上差异较大,Shannon指数上也有明显不同。当铜的浓度较高时,加入高浓度的氯氰菊酯在较长的时间后(60d)对土壤呼吸作用、微生物量碳有一定影响,可能高浓度氯氰菊酯的加入在一定程度上减弱了高浓度铜对微生物的胁迫,而微生物群落并无显著的变化。 The effects of copper, cypermethrin and their combined applications on soil respiration and microbial biomass carbon were studied using the traditional methods. The structural diversity of soil microbial communities was also studied using the denaturing gradient gel electrophoresis ( DGGE ), and the double gradient-denaturing gradient gel electrophoresis was used for providing improved resolution of the bands. The results indicated that the soil respiration and the microbial biomass carbon increased when lower concentration of copper and higher concentration of cypermethrin were applied together, and microbial communities were also significantly affected. When copper and eypermethrin were applied alone, soil respiration and microbial biomass carbon were affected largely by copper, and the DGGE bands also showed significantly differences. It also showed significantly differences on Shannon indexes. When the concentration of copper was higher, the application of higher concentration of cypermethrin affected the soil respiration and microbial biomass carbon in a way but had little effect on the structural diversity of microbial communities; maybe higher concentration of cypermethrin could weaken higher concentration of copper's stress on microbial communities.
出处 《农业环境科学学报》 CAS CSCD 北大核心 2009年第4期673-679,共7页 Journal of Agro-Environment Science
基金 国家自然科学基金项目(20677025) 江苏省社会发展项目(BS2006052) 镇江市社会发展项目(SH2006076)
关键词 复合污染 氯氰菊酯 微生物群落 combined pollution cypermethrin copper microbial communities
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  • 1Mirlean N, Roisenberg A, Chies J O. Metal contamination of vineyard soils in wet subtropics( southern Brazil )[J]. Environmental Pollution, 2007, 149(1):10-17.
  • 2Chauhan L K S, Saxena P N, Gupta S K. Cytogenetic effects of cypermethrin and fenvalerate on the root meristem cells of A Ilium cepa[J]. Environ Experi Botany, 1999, 42( 3 ) : 181-189.
  • 3Chauhan L K S, Gupta S K. Combined cytogenetic and ultrastructural effects of substituted urea herbicides and synthetic pyrethroid insecticide on the root meristem cells of Allium cepa.[J], Pesticide Biochem Physiolo, 2005, 82( 1 ) :27-35.
  • 4徐珑,杨曦,张爱茜,杨洪生.水环境中铜的光化学研究进展[J].化学进展,2005,17(3):412-416. 被引量:14
  • 5Guo T R, Zhang G P, ZHANG Y H. Physiological changes in barley plants under combined toxicity of aluminum, copper and cadmium[J]. Colloids and Surfaces B-Biointerfaces, 2007, 57(2 ): 182-188.
  • 6Gundi V A, Viswanath, Chandra M S, et al. Activities of cellulase and amylase in soils as influenced by insecticide interactions [J]. Ecotoxicology and Environmental Safety, 2007, 68(2 ) : 278-285.
  • 7张倩茹,周启星,张惠文,陈锡时.乙草胺铜离子复合污染对黑土农田生态系统中土著细菌群落的影响[J].环境科学学报,2004,24(2):326-332. 被引量:25
  • 8王玉军,周东美,孙瑞娟,陈怀满.镉与除草剂草甘磷的交互作用对小麦的毒性[J].生态环境,2004,13(2):158-160. 被引量:11
  • 9梁继东,周启星.甲胺磷和铜对黑土中乙草胺的蚯蚓生态解毒过程的影响[J].应用生态学报,2006,17(10):1958-1962. 被引量:6
  • 10鲁如坤.土壤农业化学分析法[M].北京:中国农业出版社,1999..

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