初步统计,我省约有80％以上红苕面积分布在海拔200—800米的丘陵旱地,800米以上只有零星栽培。由于栽培红苕的地势高差悬殊,地貌类型复杂,形成了自然的主体气候特色,使红苕生产上许多栽培技术具有明显的垂直地带性变化。研究这种变化规律,从而根据海拔高度的不同,科学地作好栽培技术的分类指导,对充分利用自然资 Preliminary statistics, about 80% of our province red gourd area is located in the hilly drylands of 200-800 meters above sea level, more than 800 meters only sporadic cultivation. Due to the great difference in terrain and elevation of cultivated red croaker, the complex types of topography form the natural main climate and make obvious vertical zonal changes in many cultivation techniques of red croaker production. Study of this change in law, so that according to the different altitude, science and technology to make a good classification of cultivation guidance on the full use of natural resources