The Relationship Between Vegetation and Terrain Factor Based on Topographic Correction

Vegetation can reflect the ecological characteristics of soil, water and temperature, which is great significance for protecting environment. growth affected by topographic features such as elevation, slope aspect. Due to autocorrelation topography vegetation index, current research does not fully consider influence on relationship between index factors. Therefore, it necessary eliminate through correction, so truly reveal topography. this study takes loess hilly region area, conducts terrain correction based Landsat8 OIL data different factors ( slope, aspect ). The main contents conclusions paper are follows: (1) Analyze spatial distribution corrected NDVI, EVI ) (elevation, ), explore law (2) response tends be more consistent. With increase increases first then decreases, reaching maximum at 980~990 m. shows a trend continuous growth, 30 ~ 36 °. aspect, there growth-reduction-growth, 65 °.