| 海拔梯度上高寒草甸土壤细菌功能多样性与环境因子的关系 |
| |
| 作者姓名： | 邓永翠 吴静 吴伊波 杜岩功 张妍 崔骁勇 |
| |
| 作者单位： | 1. 中国科学院大学, 北京 100049;2. 宁波大学, 浙江 宁波 315211;3. 中国科学院西北高原生物研究所, 西宁 810008;4. 中国科学院地理科学与资源研究所, 北京 100101 |
| |
| 基金项目： | Supported by National Natural Science Foundation of China (11079053,31200367) |
| |
| 摘 要： | 在青藏高原3200~3800 m的海拔梯度上,利用BIOLOG和冗余分析的方法,对细菌功能多样性和环境因子的关系进行了研究. 结果表明,碳氮磷等土壤的基本性质可以解释46.6%的细菌群落功能多样性的变化. 土壤中有效磷的贡献最大,它可能是青藏高原上限制土壤细菌功能多样性的一个重要因子. 由于海拔梯度变化而引起的土壤温度的变化,对细菌群落的功能多样性也有显著的影响.
|
| 关 键 词： | 高寒草甸 BIOLOG 冗余分析 海拔 有效磷 |
| 收稿时间： | 2012-11-13 |
| 修稿时间： | 2013-03-04 |
Soil bacterial diversity in relation to change in altitudinal environment in alpine meadow |
| |
| Authors: | DENG Yong-Cui WU Jing WU Yi-Bo DU Yan-Gong ZHANG Yan CUI Xiao-Yong |
| |
| Institution: | 1. University of Chinese Academy of Sciences, Beijing 100049, China;2. Ningbo University, Ningbo 315211, Zhejiang, China;3. Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China;4. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China |
| |
| Abstract: | Along an elevation gradient(3200 m to 3800 m) on Qinghai-Tibetan plateau, BIOLOG GN2 plates were used to analyze the elevation patterns of bacterial community functional diversity. The redundancy analysis (RDA) method was further used to analyze the relationship between bacterial profiles and the environmental variables. The results indicate that soil variables explain 46.6% of the variation in bacterial community functional diversity. Among the soil variables, soil available phosphorus explains the largest part, which suggests that it might be an important limiting factor for soil bacterial community functional diversity in this area. The soil temperature, which changes with the altitute, also has a profound effect on bacterial community functional diversity. |
| |
| Keywords: | alpine meadow BIOLOG RDA elevation available phosphorus |
|
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
