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Citation:

The Optimum Standard Angle of the Uniform Angle Index

  • Received Date: 2003-07-14
  • The paper was to improve the theory of the uniform angle index,a measure for describing spatial forest structure.The standard angle,which implied absolute regularity of the spatial distribution of the neighboring trees around a reference tree,was an important factor influencing the efficiency of the uniform angle index for describing the spatial distribution of a forest.Based on theoretical arguments,and 100 simulation stands of one ha including (1 000) trees each,a standard angle of 72° was found to be optimal,producing a uniform angle index-mean value of 0.5 in Poisson distributed tree populations.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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The Optimum Standard Angle of the Uniform Angle Index

  • 1. Research Institute of Forestry, CAF, Beijing100091, China
  • 2. Institute of Forest Management, Georg-August-University Gottingen, Büsgenweg 5, D-37077 Gottingen, Germany

Abstract: The paper was to improve the theory of the uniform angle index,a measure for describing spatial forest structure.The standard angle,which implied absolute regularity of the spatial distribution of the neighboring trees around a reference tree,was an important factor influencing the efficiency of the uniform angle index for describing the spatial distribution of a forest.Based on theoretical arguments,and 100 simulation stands of one ha including (1 000) trees each,a standard angle of 72° was found to be optimal,producing a uniform angle index-mean value of 0.5 in Poisson distributed tree populations.

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