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Volume 2 Issue 6
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Article Navigation >  Forest Research  > 1989 >  2(6): 534-539

Citation:
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A STUDY ON THE ESTABLISHMENT OF POLYMORPHIC SITE INDEX MODEL BY ADOPTING RICHARDS FUNCTION

  • 1.

    Central South China Design Institute of Forest Inventory & Planning

  • 2.

    East China Design Institute of Forest Inventory & Planning

  • Received Date: 1989-03-10
  • Richards function was used as a basic model to study the non-intersection polymorphic site index curve,which solved the problem existed while the height of the tree was not uniform with the site index at standard age in plantations of Chinese fir and Masson pine.A practical site index substitution formula was worked out to get the site index according to the height and age of the tree.The problem that whether site index will chang at different standard age or not was discussed.Finally,a general discussion on properties of the polymorphic site index curve equation for Chinese fir was made.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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A STUDY ON THE ESTABLISHMENT OF POLYMORPHIC SITE INDEX MODEL BY ADOPTING RICHARDS FUNCTION

  • 1. Central South China Design Institute of Forest Inventory & Planning
  • 2. East China Design Institute of Forest Inventory & Planning
  • Received Date: 1989-03-10
  • Available Online: 2012-12-04

Abstract: Richards function was used as a basic model to study the non-intersection polymorphic site index curve,which solved the problem existed while the height of the tree was not uniform with the site index at standard age in plantations of Chinese fir and Masson pine.A practical site index substitution formula was worked out to get the site index according to the height and age of the tree.The problem that whether site index will chang at different standard age or not was discussed.Finally,a general discussion on properties of the polymorphic site index curve equation for Chinese fir was made.

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