根据甘肃省黄土高原区农耕期和喜温作物安全生长季的热量资源，此区可划分为二年三熟小麦、玉米适宜生长区；一年一熟小麦、玉米适宜生长区和一年一熟喜凉作物生长区。探讨了麦收后复种的可能性。分析了主要粮食作物的热量资源利用率和热量利用效率。提出了合理开发和充分利用热量资源的建议 According to the caloric resources of Gansu Province in the Loess Plateau during the farming and the thermophilic growing season, the area can be divided into two crops of three-year-old wheat and maize suitable for growing area; one year of ripe wheat and maize suitable for growing area and one year of ripening Like cold crop growth area. The possibility of multiple cropping after wheat harvest is discussed. The utilization of heat resources and heat utilization efficiency of the main food crops were analyzed. Proposed reasonable development and make full use of heat resources recommendations