Mountain pastures and grasslands in the SW Tien Shan, Kyrgyzstan - Floristic patterns, environmental gradients, phytogeography, and grazing impact
文献类型：期刊论文
| 作者 | Borchardt, Peter ; Schickhoff, Udo ; Scheitweiler, Sabrina ; Kulikov, Maksim |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2011-06 |
| 卷号 | 8期号:3页码:363–373 |
| 关键词 | Central Asia Classification Endemics Gradient Analysis Grazing impact Middle Asia Pasture Management Ruderals Transformation Process Walnut-fruit forest |
| ISSN号 | 1672-6316 |
| 通讯作者 | Schickhoff, U |
| 英文摘要 | Vast grasslands are found in the walnut-fruit forest region of southern Kyrgyzstan, Middle Asia. Located above the worldwide unique walnut-fruit forests and used for grazing, they play a pivotal role in the mixed mountain agriculture of local farmers. Accordingly, these pastures are subject to an increasing utilization pressure reflecting the changing political and social conditions in the transformation process from a Soviet republic to an independent state. A first detailed analysis of mountain pasture vegetation in the Ferghana Range answers the following questions: What are the main plant community types among Kyrgyzstan's mountain pastures? What are the main environmental gradients that shape their species composition? Which phytogeographical distribution types are predominant? How does grazing affect community composition and species richness in these grasslands? Species composition was classified by cluster analysis; underlying environmental gradients were explored using DCA. A dataset of 395 relev,s was used for classification, and a subset of 79 relev,s was used in a DCA to analyze the correlation between vegetation, environment, and grazing impact. The investigated pastures were classified into four distinctive plant communities. The site factors altitude, heat load, inclination and grazing impact were found to be the major determinants of the vegetation pattern. A significant overlap between floristic composition and structural and spatial properties was shown. The majority of the species pool consisted of Middle Asian endemics and Eurosiberian species. However, disturbance-tolerant species played a significant role with respect to species composition and coverage of the herbaceous layer in vast areas of southern Kyrgyzstan's mountain pastures. In general, an intense grazing impact is clearly reflected by both species composition and structural variables of plant communities. The highly diverse and unique ecosystem is modified by an increasing utilization pressure. In order to maintain vital processes and functioning of this valuable ecosystem - in both economical and ecological terms -, it is indispensable to adopt appropriate pasture management strategies. |
| 语种 | 英语 |
| 公开日期 | 2013-08-12 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5842]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2011_Vol8 No.3 |
| 推荐引用方式 GB/T 7714 | Borchardt, Peter,Schickhoff, Udo,Scheitweiler, Sabrina,et al. Mountain pastures and grasslands in the SW Tien Shan, Kyrgyzstan - Floristic patterns, environmental gradients, phytogeography, and grazing impact[J]. JOURNAL OF MOUNTAIN SCIENCE,2011,8(3):363–373. |
| APA | Borchardt, Peter,Schickhoff, Udo,Scheitweiler, Sabrina,&Kulikov, Maksim.(2011).Mountain pastures and grasslands in the SW Tien Shan, Kyrgyzstan - Floristic patterns, environmental gradients, phytogeography, and grazing impact.JOURNAL OF MOUNTAIN SCIENCE,8(3),363–373. |
| MLA | Borchardt, Peter,et al."Mountain pastures and grasslands in the SW Tien Shan, Kyrgyzstan - Floristic patterns, environmental gradients, phytogeography, and grazing impact".JOURNAL OF MOUNTAIN SCIENCE 8.3(2011):363–373. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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