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Role of physiographic factors in distribution of Abies pindrow (Silver Fir) along an altitudinal gradient in Himalayan temperate forests

Author

Listed:
  • C. M. Sharma

    (HNB Garhwal University)

  • Sarvesh Suyal

    (HNB Garhwal University)

  • S. K. Ghildiyal

    (HNB Garhwal University)

  • Sumeet Gairola

    (HNB Garhwal University)

Abstract

We have made an attempt to understand the significance of physiographic factors viz., altitude, aspect, slope and soil characteristics in determining the structure, composition, growth behavior and distribution of Himalayan Silver Fir (Abies pindrow Spach.) through a comparative analysis of two temperate forests. The occurrence of highest density (370 and 225 ind/ha), importance value index (213.10 and 190.60) and total basal cover (TBC; 95.72 and 51.15 m2/ha) values along with the availability of higher organic carbon (6.53 and 4.47%), nitrogen (N; 0.73 and 0.44%) and potassium (K; 621 and 319 ppm) contents in the soils just beneath the hilltops (2,650–2,800 and 2,550–2,650 m asl), on steeper slopes (45°–50° and 42°–45°) and North-East aspects have revealed better growth of A. pindrow on both the sites. Stem density positively correlated with TBC (0.771), Shannon–Wiener diversity index (H′; 0.879), OC (0.601), N (0.758) and K (0.752), whereas TBC has shown significant positive relationship with H′ (0.894), K (0.793) and N (0.716). Similarly, H′ has also shown significant positive correlation with slope (0.721), K (0.855) and N (0.791). Interestingly, positive correlation of altitude with stem density (0.557) and of slope with TBC (0.608) was noticed in the distribution of A. pindrow individuals.

Suggested Citation

  • C. M. Sharma & Sarvesh Suyal & S. K. Ghildiyal & Sumeet Gairola, 2010. "Role of physiographic factors in distribution of Abies pindrow (Silver Fir) along an altitudinal gradient in Himalayan temperate forests," Environment Systems and Decisions, Springer, vol. 30(1), pages 76-84, March.
    • Handle: RePEc:spr:envsyd:v:30:y:2010:i:1:d:10.1007_s10669-009-9245-1
    DOI: 10.1007/s10669-009-9245-1
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    References listed on IDEAS

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    1. C. M. Sharma & N. P. Baduni, 2000. "Effect of aspect on the structure of some natural stands of Abies pindrow in Himalayan moist temperate forest," Environment Systems and Decisions, Springer, vol. 20(4), pages 309-317, December.
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