运用计算机作物生长模拟模型对江苏省丹阳市的主要粮食作物及种植制度的气候产量潜力进行了分析.结果表明,模拟的作物气候产量潜力以玉米、单季稻为最高.单季稻对当地的光、热、水资源利用较充分,现实产量达到气候潜力的78.2%.模拟的2种种植制度(麦-单季稻,麦/玉米-稻)的气候潜力表明,三熟比二熟高3000kg/hm~2,排水良好,小麦产量可以达到或接近气候潜力,玉米的气候产量潜力则受到生长期内降水量年际变化影响较大.在丹阳市引进春玉米的种植制度,可以充分利用当地的水热资源,提高全年产量及改善单一的种植制度。 The climate crop yield potential of major grain crops and planting systems in Danyang City of Jiangsu Province was analyzed by using computer simulation model of crop growth.The results showed that the crop yield potential of crop was the highest in maize and single cropping rice.The single cropping rice had significant influence on local light, The actual utilization of water resources reached 78.2% of the climatic potential, and the climatic potential of the two cropping systems (wheat - single cropping rice, wheat / maize - paddy) showed that the three climates were 3000kg / hm ~ 2 higher than the second cropping, Good, the wheat yield can reach or close to the climatic potential, and the climate potential of corn is greatly influenced by the interannual variation of precipitation during the growing period. The introduction of spring corn planting system in Danyang City can make full use of local hydrothermal resources and improve Annual production and improvement of monoculture system.