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Correlations between vegetation distribution and topographical factors in the northwest of Longmen Mountain, Sichuan Province


, : Correlations between vegetation distribution and topographical factors in the northwest of Longmen Mountain, Sichuan Province. Shengtaixue Zazhi 25(9): 1052-1055

Employing the statistical topographical data obtained from remote sensing images and by GIS technique, and with the methods of Crosstabs analysis and factor analysis, this paper studied the correlations between vegetation distribution and topographical factors in the northwest of Longmen Mountain, Sichuan Province. The results showed that in this area, vegetation distribution had a significant correlation with topographical factors, among which, altitude was the most important, with its loading value in the first main component being 0.929. Slope and aspect were also important affecting factors, with their loading values in the second and third main components being 0.989 and 0.998, respectively.

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