Study on the Climate Adaptability and Division of Colza in Chongqing

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.