| 不同深度冻土微生物数量特征及其与土壤理化性质的关系 |
| |
| 引用本文： | 王鹭,董小培,张威,章高森,刘光琇,冯虎元.不同深度冻土微生物数量特征及其与土壤理化性质的关系[J].冰川冻土,2011,33(2):436-441. |
| |
| 作者姓名： | 王鹭 董小培 张威 章高森 刘光琇 冯虎元 |
| |
| 作者单位： | 兰州大学生命科学学院,甘肃,兰州,730000;巩义市第二高级中学,河南,郑州,451200;中国科学院寒区旱区环境与工程研究所沙漠与沙漠化重点实验室,甘肃,兰州,730000 |
| |
| 基金项目： | 国家自然科学基金项目(307703293080015440971034); 中国博士后科学基金项目(20080430794)资助 |
| |
| 摘 要： | 分别以乌鲁木齐河源区不同层位深坑冻土样品为研究材料,利用荧光显微计数技术、寡营养恢复培养技术等研究了微生物数量特征及其与土壤理化参数的关联度.结果表明:可培养细菌数量与冻土深度、土壤含水量、总C和总N含量都成显著的正相关,与pH值呈显著负相关.而且,可培养细菌数及其在细胞总数中所占比值随冻土深度的增加而下降,表明深坑样...
|
| 关 键 词： | 冻土微生物 可培养细菌 理化性质 相关性 |
Quantitative Characters of Microorganisms in Permafrost at Different Depths and Their Relation to Soil Physicochemical Properties |
| |
| WANG Lu,DONG Xiao-pei,ZHANG Wei,ZHANG Gao-sen,LIU Guang-xiu,Feng Hu-yuan.Quantitative Characters of Microorganisms in Permafrost at Different Depths and Their Relation to Soil Physicochemical Properties[J].Journal of Glaciology and Geocryology,2011,33(2):436-441. |
| |
| Authors: | WANG Lu DONG Xiao-pei ZHANG Wei ZHANG Gao-sen LIU Guang-xiu Feng Hu-yuan |
| |
| Institution: | WANG Lu1,DONG Xiao-pei2,ZHANG Wei3,ZHANG Gao-sen3,LIU Guang-xiu3,Feng Hu-yuan1(1.School of Life Science,Lanzhou University,Lanzhou Gansu 730000,China,2.Gongyi Second Senior High School,Zhengzhou Henan 451200,3.Key Laboratory of Desert and Desertification,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,China) |
| |
| Abstract: | The microorganisms in permafrost could live in cold environment through the coadapted physicochemical process,which exists between microorganisms in permafrost and permafrost environment.In this paper,the relation between microbial number and soil physicochemical properties of permafrost at different depths at the headwaters of the ürümqi River is analyzed by using fluorescence microscopy counting and oligo-culture techniques.Totally,20 samples from a 200-cm permafrost core were used as study materials.It is found that the number of cultivable bacteria has a significant positive correlation with soil water content,total carbon and total nitrogen concentrations,and a significant negative correlation with pH value.Meanwhile,the ratio of cultivable bacteria to total cell number decreases with depth.The results demonstrate that the number of cultivable bacteria in permafrost is closely correlated with soil physicochemical properties and depositional age. |
| |
| Keywords: | microorganisms in permafrost cultivable bacteria physicochemical properties correlation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
