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- W925194306 abstract "Two-dimensional analysis provides a comprehensive description of the structure, scales of pattern and directional components in a spatial data set. In spectral analysisi, four functions are illustrated,; the autocorrelation, the periodogram, the R-spectrum and the -spectrum. The R-spectrum and -spectrum function respectively summarize the periodogram in term of scale of pattern and directional components. Sampling is measured in the Naejang National Park area where the Daphniphyllum trees grow. 320 contiguous (1515)m plots are located along the transect and density of all trees over DBH 3 cm recorded respectively. 12 species of vascular plant are recorded in this survey area. The trend surface of density of all plant are estimated using polynomial regression and are exhibited in 3-dimensional graph and density contour map. Transformation to the corresponding polar spectrum from the periodogram emphasized the directional components and the scales to pattern. R-spectrum corresponding to the scale of pattern of periodogram showed a large peak 15.47 in the interval 9-spectrum corresponding to directional components have two peaks 8.28 and 11.05 in the interval $35^{circ}theta" @default.
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- W925194306 date "1990-01-01" @default.
- W925194306 modified "2023-09-24" @default.
- W925194306 title "A Study on the Vegetation Pattern Using Two-Dimensional Spectral Analysis" @default.
- W925194306 hasPublicationYear "1990" @default.
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