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Research Journal of Botany
  Year: 2009 | Volume: 4 | Issue: 2 | Page No.: 55-69
DOI: 10.3923/rjb.2009.55.69
 
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Phytosociological Investigation and Life Form Pattern of Grazinglands under Pine Canopy in Temperate Zone, Northwest Himalaya, India

S. Kukshal, B.P. Nautiyal, A. Anthwal, A. Sharma and A.B. Bhatt

Abstract:
 In temperate region of Northwest Himalaya, drier slopes are dominated by Pinus roxburghii and are known for rich ground herbaceous flora predominated by grasses. These regions serve as grazingland for livestock and cattle. Present study deals with vegetation analysis, phytosociology and life form pattern of such grazingland between 1100-1400 m a.s.l. across the altitudinal gradient and varying slopes. Capillipedium parviflorum is identified as dominant species based on Importance value index, although the area is exhibited by large number of herbs in comparison to grasses and sedges. Vegetation of the area is contagiously distributed and predominantely represented by therophytes and geophytes indicating the degree of anthropogenic activities. The native vegetation is disturbed by overgrazing and life forms of the flora of each of the association are maintained by the intensity of grazing. In the sites under observations, besides grazing, fire was main detrimental factor for dominating the flora by therophytes. Codominance of geophytes may be assigned to its propagation through underground perennating organs as the fire type in these ecosystems is crown fire type. The study describe all these features.
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How to cite this article:

S. Kukshal, B.P. Nautiyal, A. Anthwal, A. Sharma and A.B. Bhatt, 2009. Phytosociological Investigation and Life Form Pattern of Grazinglands under Pine Canopy in Temperate Zone, Northwest Himalaya, India. Research Journal of Botany, 4: 55-69.

DOI: 10.3923/rjb.2009.55.69

URL: https://scialert.net/abstract/?doi=rjb.2009.55.69

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