【作者】 周治国； 曹卫星； 王绍华； 王启猛；

【Author】 Zhou Zhiguo Cao Weixing Wang Shaohua Wang Qimeng(Agricultural Information Engineering and Technology Center, Nanjing Agricultural University, Nanjing 210095)

【机构】 南京农业大学农业信息工程技术中心；

【摘要】 以江苏省为案例,基于GIS,在区域气候数据库和作物生产数据库支持下,通过光、温、水、土、施肥、灌溉、社会等因子的逐步衰减,估算区域作物生产潜力,并与作物实际单产相比较,进行作物单产潜力、潜力系数和总产潜力的对比分析,确定区域作物生产的开发优势。结果表明:作物开发优势由北向南逐渐增大。就作物而论,棉花开发优势最大,油菜最小,粮食居中。就经济区而论,粮油棉开发优势不同,粮食:太湖区>沿江区>沿海区>宁镇扬区>两淮区>徐连区,棉花:太湖区>沿海区>沿江区>宁镇扬区>徐连区>两淮区,油料:太湖区>宁镇扬区>沿江区>沿海区>两淮区>徐连区。就同一经济区而论,粮油棉的开发优势也不同,徐连区:棉花>粮食>油料;两淮区:棉花最大,粮食和油料相当;宁镇扬区:油料最大,粮食和棉花相当;沿江区:粮油棉的开发优势相当;太湖区:棉花最大,粮食、油料相当;沿海区:棉花>粮食>油料。更多还原

【Abstract】 For Jiangsu province as example, based on the support of GIS, the regional agricultural climate database and crop production database including grain, cotton and oil - bearing, the county-based crop potential production in Jiangsu province is calculated by the factor attenuation of solar radiation, temperature, water, soil, fertilization, irrigation and the social effect factor, step by step. Also, comparing the crop social potential production with the crop actual yield per unit area in terms of comparatively analysis of crop potential yield per unit area, potential co - efficiency and the total potential production, in order to determine development advantage of crop production. The results show that: from north to south, the development advantage of crop potential production increases gradually. Taking crop into concern, cotton has the biggest development advantage, rape has the smallest and grain is in the middle. Considering economic zone, the development advantage of grain, oil - bearing and cotton is different , for grain, the Tai lake region > the region along the Yangze river > the littoral region > the Nanjing - Zhenjiang - Yangzhou region > the two Hui region > the Xuzhou - Lianyungang region; for cotton, the Tai lake region > the littoral region > the region along the Yangze river > the Nanjing - Zhenjiang -Yangzhou region> the Xuzhou - Lianyungang region > the two Hui region; for oil - bearing, the Tai lake region > the Nanjing - Zhenjiang - Yangzhou region > the region along the Yangze river > the littoral region > the two Hui region > the Xuzhou - Lianyungang region. At the same economic region the development advantage of grain, oil - bearing and cotton is also different, in the Xuzhou - Lianyungang region, cotton> grain > oil-bearing; in the two Hui region, cotton is the most advantaged, grain and oil - bearing are relatively the same; in the Nanjing - Zhenjiang - Yangzhou region, oil - bearing is the most advantlaged, grain and cotton are relatively the same; in the region along the Yangze river, grain, oil - bearing and cotton have relatively the same development advantage; in the Tai lake region, cotton is the most advantaged, grain and oil-bearing have relatively the same development advantage; in the littoral region, cotton > grain > oil - bearing.更多还原