IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2011  > Vol8 No.3
Mountain pastures and grasslands in the SW Tien Shan, Kyrgyzstan - Floristic patterns, environmental gradients, phytogeography, and grazing impact
Borchardt, Peter; Schickhoff, Udo; Scheitweiler, Sabrina; Kulikov, Maksim
Corresponding AuthorSchickhoff, U
2011-06
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume8Issue:3Pages:363–373
AbstractVast 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.
KeywordCentral Asia Classification Endemics Gradient Analysis Grazing Impact Middle Asia Pasture Management Ruderals Transformation Process Walnut-fruit Forest
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5842
CollectionJournal of Mountain Science_Journal of Mountain Science-2011_Vol8 No.3
Recommended Citation
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.
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