| 不同海拔表层土壤微生物数量消长的机理 |
| |
| 引用本文： | 刘光琇,董小培,张威,章高森,王鹭,岳君.不同海拔表层土壤微生物数量消长的机理[J].冰川冻土,2010,32(6). |
| |
| 作者姓名： | 刘光琇 董小培 张威 章高森 王鹭 岳君 |
| |
| 作者单位： | 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;兰州大学,生命科学学院,甘肃,兰州,730000 |
| |
| 基金项目： | 国家自然科学基金项目，中国博士后科学基金项目 |
| |
| 摘 要： | 以乌鲁木齐河源区不同海拔表层土壤样品为研究材料,利用荧光显微计数技术、寡营养恢复培养技术等,研究了微生物的数量与土壤理化参数和植被类型的关联度.结果表明:表层土壤中可培养细菌数与表土含水量、总C、总N和pH值相关性不显著,与相应的植被类型明显相关,可培养细菌数从大到小所对应的植被为:苔草嵩草芨芨草针阔叶混交林云杉车前草山莓草;在相同植被类型下,可培养细菌数量表现出随海拔升高而降低的趋势.植被类型是影响土壤可培养细菌数量的主要因素,但海拔变化对可培养细菌数量的影响也不可忽略.
|
| 关 键 词： | 可培养细菌 理化性质 海拔 植被类型 |
The Changing Mechanisms of Microbial Number on Surface Soil with Altitude |
| |
| LIU Guang-xiu,DONG Xiao-pei,ZHANG Wei,ZHANG Gao-sen,WANG Lu,YUE Jun.The Changing Mechanisms of Microbial Number on Surface Soil with Altitude[J].Journal of Glaciology and Geocryology,2010,32(6). |
| |
| Authors: | LIU Guang-xiu DONG Xiao-pei ZHANG Wei ZHANG Gao-sen WANG Lu YUE Jun |
| |
| Institution: | LIU Guang-xiu1,DONG Xiao-pei2,ZHANG Wei1,ZHANG Gao-sen1,WANG Lu2,YUE Jun2(1.Key Laboratory of Desert and Desertification,Cold and Arid Regions Environmental and EngineeringResearch Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China,2.School of Life Science,Lanzhou University,China) |
| |
| Abstract: | Surface soil were sampled from different altitude and then sent to study the relationship among the microbial abundance,the soil physicochemical parameters and the vegetation types by using the fluorescence microscope enumeration method and oligo-culture method.It was found that the abundance of cultivable bacteria was correlated insignificantly with soil moisture,total carbon and total nitrogen concentrations,and pH value.However,it was significantly correlated with vegetation types,and the abundance of cu... |
| |
| Keywords: | cultivable bacteria physicochemical property altitude vegetation types |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
