Taking the case of the extraction of paddy planting areas in Xi County of Henan Province,Linear Spectral Mixture Model(LSMM) was selected to classify and calculate paddy planting areas,moreover,location accuracy calculation was carried out for its result and high resolution ALOS data,thereby,average precision reached 87.89%.Meanwhile,comparing with decision tree classification method and neural network classification,total precision of mixed pixel decomposition method improved remarkably.The results indicat...