Response of microbial biomass to grazing in an alpine meadow along an elevation gradient on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Fu, G(付刚) ; Shen, ZX ; Zhang, XZ ; Zhou, YT ; Zhang, YJ |
| 刊名 | EUROPEAN JOURNAL OF SOIL BIOLOGY
 |
| 出版日期 | 2012 |
| 卷号 | 52页码:27-29 |
| 关键词 | MBC MBC/MBN ratio MBN |
| 通讯作者 | Shen, ZX |
| 英文摘要 | Although grazing is a common land use type, few studies are available about the response of soil microbial biomass to grazing especially above 4300 m on the Tibetan Plateau. Therefore, three fenced enclosures were made at three alpine meadow sites along an elevation gradient (4313 m, winter pasture; 4513 m and 4693 m, summer pasture) in July 2008. Soil samples inside and outside the fenced enclosures were gathered in July, August and September 2011. Microbial biomass C (MBC) and N (MBN) were determined using the chloroform fumigation-extraction method. Grazing marginally declined MBC by 21.60%. 4.83% and 5.36% across sampling dates at elevation 4313 m, 4513 m and 4693 m, respectively. Grazing significantly declined MBN by 39.58% and 18.88% across sampling dates at elevation 4313 m and 4693 m, respectively, whereas it slightly declined MBN by 1.50% at elevation 4513 m. Microbial biomass at elevation 4693 m was significantly higher in comparison with elevation 4513 m and 4313 m, whereas soil temperature at elevation 4693 m was 2.3 degrees C and 2.8 degrees C lower than that at elevation 4513 m and 4313 m, respectively. Our findings suggest that MBN may respond more rapidly to grazing than MBC and that climate warming and grazing may decline microbial biomass for the alpine meadow. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China 41171084 40771121；National Science and Technology Plan Project of China 2011BAC09B03 2007BAC06B01 2006BAC01A04；National Basic Research Program of China 2010CB833500 |
| 语种 | 英语 |
| 公开日期 | 2012-12-25 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/27812]  |
| 专题 | 地理科学与资源研究所_研究生部 |
| 推荐引用方式 GB/T 7714 | Fu, G,Shen, ZX,Zhang, XZ,et al. Response of microbial biomass to grazing in an alpine meadow along an elevation gradient on the Tibetan Plateau[J]. EUROPEAN JOURNAL OF SOIL BIOLOGY,2012,52:27-29. |
| APA | Fu, G,Shen, ZX,Zhang, XZ,Zhou, YT,&Zhang, YJ.(2012).Response of microbial biomass to grazing in an alpine meadow along an elevation gradient on the Tibetan Plateau.EUROPEAN JOURNAL OF SOIL BIOLOGY,52,27-29. |
| MLA | Fu, G,et al."Response of microbial biomass to grazing in an alpine meadow along an elevation gradient on the Tibetan Plateau".EUROPEAN JOURNAL OF SOIL BIOLOGY 52(2012):27-29. |
入库方式： OAI收割
来源：地理科学与资源研究所
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