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| 大气CO2与吡虫啉对甘蓝土壤细菌与微生物生物量C的影响 | |
| 引用本文： | 姚艳红,戈峰,沈佐锐.大气CO2与吡虫啉对甘蓝土壤细菌与微生物生物量C的影响[J].生态学报,2010,30(1):272-277. |
| 作者姓名： | 姚艳红 戈峰 沈佐锐 |
| 作者单位： | 1. 中国农业大学农学及生物技术学院,北京,100193;中国科学院动物研究所,北京,100101 2. 中国科学院动物研究所,北京,100101 3. 中国农业大学农学及生物技术学院,北京,100193 |
| 基金项目： | 国家自然科学基金资助项目(30770382); 国家公益性行业科研专项经费资助项目（200803005）; 国家科技支撑计划资助项目(2006BAD08A07-3-2) |
| 摘 要： | 采用田间开顶式CO2控制气室(OTC),研究了375μL/L、750μL/L两个CO2浓度和CK、LC50、LC903种吡虫啉浓度处理条件下,甘蓝根际土壤细菌与非根际土壤微生物生物量C的变化。750μL/L CO2处理对甘蓝根际细菌数量显著增加(P0.01),而在同一CO2水平下各农药处理间并无显著差异;根区土壤微生物生物量C只有在750μL/L CO2且无吡虫啉处理的条件下显著(P0.05)下降,在LC50、LC90处理的影响下并不显著。同一CO2水平下,根区土壤微生物生物量C受农药处理的影响不明显。 |
| 关 键 词： | CO2浓度升高 吡虫啉 甘蓝 细菌 微生物生物量C |
| 收稿时间： | 2008/9/22 0:00:00 |
| 修稿时间： | 2009/1/21 0:00:00 |
Effect of elevated CO_2 concentration and imidacloprid on culturable bacteria and microbial biomass carbon in cabbage(Brassica oleracea L. var. capitata)soil |
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| yaoyanhong.Effect of elevated CO_2 concentration and imidacloprid on culturable bacteria and microbial biomass carbon in cabbage(Brassica oleracea L. var. capitata)soil[J].Acta Ecologica Sinica,2010,30(1):272-277. | |
| Authors: | yaoyanhong |
| Institution: | China agricultural university,Binstitute of zoology Chinese academy of science |
| Abstract: | Responses of bacteria in the presence rhizosphere soil and soil microbial biomass carbon in non-rhizosphere cabbage to elevated CO2 and three concentrations of imidacloprid were examined in the open-top chambers(OTC).Numbers of bacteria in rhizosphere soil increased significantly(P<0.01) with elevated CO2 but imidacloprid had no effect on bacteria.Microbial biomass carbon was lower in non-rhizosphere of cabbage under elevated CO2 than ambient CO2 concentrations when imidacloprid was not applied.Regardless o... |
| Keywords: | elevated CO2 concentration imidacloprid cabbage bacteria soil microbial biomass C |
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