百色地区位于广西西部,地形自西北向东南倾斜,山峦起伏,山陡谷深,气候差异大。水田面积占耕地面积的43.3％,种植制度有双季稻、早玉米——晚稻、一季中稻等,分布在海拔100—1600米,其中双季稻分布到1200米的狭谷之中。稻谷占粮食总产的60％,是人民的主要食粮。但水稻单产尤其是双季稻单产随海拔高度变化大。这与气 Bose area is located in western Guangxi, topography from northwest to southeast tilt, undulating hills, deep steep valleys, large differences in climate. The paddy field covers 43.3% of the arable land. The planting system includes double cropping rice, early corn - late rice, middle season rice and so on. The paddy field distributes at an elevation of 100-1600 meters, of which the double cropping rice is distributed in a valley of 1,200 meters. Rice accounts for 60% of the total grain output and is the staple food for the people. However, the yield of rice, especially double crop rice, varies greatly with altitude. This is with gas