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Association Analysis of NDVI Changes and Topographic Factors

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Abstract:

Based on the TM remote sensing data of the Huadian city in 1991 and 2011 and based on the DEM data,using the normalized difference vegetation index (NDVI) change classification method,to Extraction the elevation,slope,slope direction data and the vegetation index data of the study area.Then using the spatial analysis function of GIS software to overlay the two different period NDVI data and analysis the NDVI change of area and spatial. Using the same method to overlay and analysis the relationship of NDVI data and elevation,slope,slope direction.Research shows that the variation of NDVI in the study area has relationship with the topographic factors change.

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Info:

Periodical:

Applied Mechanics and Materials (Volumes 333-335)

Pages:

1205-1208

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.333-335.1205

Citation:

Cite this paper

Online since:

July 2013

Authors:

De Li Liu, Ya Shuang Zhang, Nan Lin

Keywords:

Elevation, NDVI, Slope, Slope Direction

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