Mining the drive mechanism for Impervious Surface expansion with index of entropy

Index of entropy was adopted to mine the drive mechanism for Impervious Surface (IS) expansion. With the high urbanization rate, the effects on eco-environmental are profound. Thus, studying the interior mechanism of land use and land cover change have becoming the most significant. The results of the experiment showed that the number of neighborhood impervious surface units is the overriding factor with the influence weight of 0.057554; The second are GDP and housing price with the weight of 0.037747, 0.036875 respectively; The third factors are population density and DEM, with the effect weights 0.026878 and 0.020955; The other factors are relatively less. From the results, we can deduce that the main factors are social economic and cultural factors that affect the IS expansion.