Tropics
Online ISSN : 1882-5729
Print ISSN : 0917-415X
ISSN-L : 0917-415X
Regular papers
Fractal Dimension of the Spatial Distribution of Dryobalanops lanceolata in a Tropical Rain Forest, at Lambir, Sarawak
Akiya IWASAKI, Satoshi TAKAHASHI, Takuo YAMAKURA, Mamoru KANZAKI, Akira ITOH, Tatsuhiro OHKUBO, Kazuhiko OGINO, Ernest CHAI O. K., Hua Seng LEE, Peter Shaw ASHTON
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Keywords: Dryobalanops lanceolata, spatial distribution, correlation dimension, fractal, tropical rain forest
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1997 Volume 7 Issue 1+2 Pages 1-8

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Abstract

We analized the character of distributional pattern of Dryobalanops lanceolata by calculating the correlation dimension. We counted points reflected at the boundary as well as at the corner to correct the lack of points near the boundary. Its cerrelation dimension is about 1,33 with small scale and it has some remarkable decreases and increases in dimension, suggesting the change of the character of the distribution, Comparing the correlation dimension with the box dimension and I-delta index, correlation dimension is sensitive to the scale where the distributional character changes, Therefore the correlation dimension can be a new index that shows the change of the characters of distribution in scale.

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© 1997 The Japan Society of Tropical Ecology
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