Knowledge Management System of Northwest Institute of Plateau Biology, CAS
| Status and dynamics of Kobresia pygmaea ecosystem on the Tibetan plateau | |
| Miehe, Georg1; Mlehe, Sabine1; Kaiser, Knut1; Liu Jianquan2; Zhao, Xinquan2 | |
| 2008-06-01 | |
| 发表期刊 | AMBIO
 |
| 卷号 | 37期号:4页码:272-279 |
| 文章类型 | Article |
| 摘要 | This paper provides information about the distribution, structure, and ecology of the world's largest alpine ecosystem, the Kobresia pygmaea pastures in the southeastern Tibetan plateau. The environmental importance of these Cyperaceae mats derives from the extremely firm turf, which protects large surfaces against erosion, including the headwaters of the Huang He, Yangtze, Mekong, Salween, and Brahmaputra. The emphasis of the present article is on the climate-driven evolution and recent dynamics of these mats under the grazing impact of small mammals and livestock. Considering pedological analyses, radiocarbon datings, and results from exclosure experiments, we hypothesize that the majority of K. pygmaea mats are human-induced and replace forests, scrub, and taller grasslands. At present, the carrying capacity is increasingly exceeded, and reinforced settlement of nomads threatens this ecosystem especially in its drier part, where small mammals become strong competitors with livestock and the removal of the turf is irreversible. Examples of rehabilitation measures are given.; This paper provides information about the distribution, structure, and ecology of the world's largest alpine ecosystem, the Kobresia pygmaea pastures in the southeastern Tibetan plateau. The environmental importance of these Cyperaceae mats derives from the extremely firm turf, which protects large surfaces against erosion, including the headwaters of the Huang He, Yangtze, Mekong, Salween, and Brahmaputra. The emphasis of the present article is on the climate-driven evolution and recent dynamics of these mats under the grazing impact of small mammals and livestock. Considering pedological analyses, radiocarbon datings, and results from exclosure experiments, we hypothesize that the majority of K. pygmaea mats are human-induced and replace forests, scrub, and taller grasslands. At present, the carrying capacity is increasingly exceeded, and reinforced settlement of nomads threatens this ecosystem especially in its drier part, where small mammals become strong competitors with livestock and the removal of the turf is irreversible. Examples of rehabilitation measures are given. |
| 关键词 | Southern Tibet High Asia China Management Scenarios Responses Pastures Monsoon |
| WOS标题词 | Science & Technology ; Technology ; Life Sciences & Biomedicine |
| 学科领域 | 环境生物学 |
| 关键词[WOS] | SOUTHERN TIBET ; HIGH ASIA ; CHINA ; MANAGEMENT ; SCENARIOS ; RESPONSES ; PASTURES ; MONSOON |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS类目 | Engineering, Environmental ; Environmental Sciences |
| WOS记录号 | WOS:000257637400006 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/1205 |
| 专题 | 中国科学院西北高原生物研究所 |
| 作者单位 | 1.Univ Marburg, Fac Geog, D-35032 Marburg, Germany 2.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810008, Qinghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Miehe, Georg,Mlehe, Sabine,Kaiser, Knut,et al. Status and dynamics of Kobresia pygmaea ecosystem on the Tibetan plateau[J]. AMBIO,2008,37(4):272-279. |
| APA | Miehe, Georg,Mlehe, Sabine,Kaiser, Knut,Liu Jianquan,&Zhao, Xinquan.(2008).Status and dynamics of Kobresia pygmaea ecosystem on the Tibetan plateau.AMBIO,37(4),272-279. |
| MLA | Miehe, Georg,et al."Status and dynamics of Kobresia pygmaea ecosystem on the Tibetan plateau".AMBIO 37.4(2008):272-279. |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论