Abstract:
Chongqing has superior climate with the altitude,temperature,precipitation,sunshine and other meteorological factors,and there are certain rules of colza growth and distribution.This paper selected climate data from 1971 to 2000,GIS-based spatial analysis for refinement,combined with field research and other related information,divided into 7 different types of cultivation areas,including better sunlight and double-to-triple-crop area,average sunlight and double-to-triple-crop area,better sunlight and double-crop area,average sunlight and double-crop area,better sunlight and once-to-double-crop area,average sunlight and once-to-double-crop area and cold and scattered cultivation area,which may provide an objective basis for a reference in Chongqing.