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Effect of Grazing and Climatic Changes on Alpine Vegetation of Tungnath, Garhwal Himalaya, India

Author

Listed:
  • M. C. Nautiyal

    (HNB Garhwal University)

  • B. P. Nautiyal

    (HNB Garhwal University)

  • Vinay Prakash

    (HNB Garhwal University)

Abstract

Effect of grazing and changing climate on vegetation composition of alpine pasture at Tungnath, Garhwal Himalaya was observed. Growth form pattern and phytosociological attributes were analyzed during 1988 under grazed (exposed to extensive grazing) and ungrazed (protected from grazing) conditions. These observations were repeated during 1998. It was observed that number of early growing species and long vegetative growth cycle species had increased at both sites in 1998 in comparison to 1988. Further, some species, viz., Poa alpina, Polygonum spp., Ranunculus hirtellus, Anemone spp., are predominantly found near the timberline-subalpine region. These species are less palatable and were present at both sites with higher dominance (TBC) and niche width in 1998 indicating wide distribution of the species along an altitudinal gradient. These observations indicated the migration of these species towards upper slopes of alpine. Species diversity was also higher after ten years. However, it is clear that climatic changes alone are not responsible for these vegetational shifts. In fact, human-induced changes are the main reason for habitat destruction and changes in vegetation composition of the alpine region of Garhwal Himalaya. Before final conclusions can be made, long-term studies on vegetation composition and changes are needed, especially in Himalayan region.

Suggested Citation

  • M. C. Nautiyal & B. P. Nautiyal & Vinay Prakash, 2004. "Effect of Grazing and Climatic Changes on Alpine Vegetation of Tungnath, Garhwal Himalaya, India," Environment Systems and Decisions, Springer, vol. 24(2), pages 125-134, June.
    • Handle: RePEc:spr:envsyd:v:24:y:2004:i:2:d:10.1007_s10669-004-4803-z
    DOI: 10.1007/s10669-004-4803-z
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    Cited by:

    1. Neelam Rawat & B. P. Nautiyal & M. C. Nautiyal, 2010. "Annual nutrients budget for the grazed and ungrazed sites of an alpine expanse in North-West Himalaya, India," Environment Systems and Decisions, Springer, vol. 30(1), pages 54-66, March.
    2. Neelam Rawat & B. P. Nautiyal & M. C. Nautiyal, 2010. "Litter decomposition rate and nutrient release from different litter forms in a Himalayan alpine ecosystem," Environment Systems and Decisions, Springer, vol. 30(3), pages 279-288, September.
    3. Weimin Liu & Dengming Yan & Zhilei Yu & Zening Wu & Huiliang Wang & Jie Yang & Simin Liu & Tianye Wang, 2024. "Analysis of Dynamic Changes in Vegetation Net Primary Productivity and Its Driving Factors in the Two Regions North and South of the Hu Huanyong Line in China," Land, MDPI, vol. 13(6), pages 1-23, May.

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