African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 807

Full Length Research Paper

Structure and composition of vegetation in subtropical forest of Kumaun Himalaya

Geeta Kharkwal1,2* and Yaswant Singh Rawat2
  1Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan. 2Department of Botany, DSB Campus, Kumaun University, Nainital, Uttarakhand, India.
Email: [email protected]

  •  Accepted: 22 January 2010
  •  Published: 30 April 2010

Abstract

 

An extensive sampling was conducted for vegetational analysis in different forest sites between 1600 and 2600 m asl in Kumaun Himalaya. Quercus leucotrichophora A. Campus, Quercus floribunda Lindl. ex Rehder, Quercus semecarpifolia J. E. Smith and Pinus roxburghii Sarg. are the dominant tree species in Banj-oak, Tilonj-oak, Kharsu-oak and Chir-pine forests, respectively.Among the sampling sites, total density of tree, shrub and herb species was ranged from 10 to 28.6 individuals (indv/100 m2) 1.8 to 21.7 indv/25 m2, and 28.1 to 103.7 indv/m2, respectively. The total abundance-frequency (AF) ratio of tree, shrub and herb species across the sampling sites varied from 0.23 to 1.25, 0.25 to 1.79 and 3.4 to 27.3, respectively. The abundance-frequency ratio in the present study showed contagious distribution pattern in tree, shrub and herb species.

 

Key words: Species composition, density, frequency, distribution pattern, Kumaun Himalayan forest.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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