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基于重庆市38个区县农作物播种面积数据,利用生产集中度指数和区位基尼系数两个指标,本文对重庆市2004-2014年来农作物种植空间集聚特征进行了分析。本文结果表明,农作物播种面积在重庆都市功能区的比重最小,城市发展新区比重最大,其次为渝东北生态涵养发展区和渝东南生态保护发展区。随时间推移,重庆市农作物种植空间集聚度呈增大趋势,农作物种植越来越集中。但不同功能区而言,农作物种植空间集聚度变化存在较大差异,其中,都市功能区农作物种植空间集聚程度最大,其次为城市发展新区和渝东北生态涵养发展区,渝东南生态保护发展区集聚程度最小。
Based on the data of crop sown area in 38 districts and counties in Chongqing, and using the indexes of production concentration index and Gini coefficient, this paper analyzes the spatial clustering characteristics of crop planting in Chongqing from 2004 to 2014. The results show that the sown area of crops is the smallest in Chongqing’s urban functional areas, with the largest proportion of urban development zones, followed by the ecological conservation and development zones in northeast Chongqing and the ecological protection and development zones in southeast Chongqing. As time goes by, the concentration of crop planting space in Chongqing shows an increasing trend, and crop cultivation is more and more concentrated. However, in terms of different functional areas, there is a big difference in the spatial concentration of crop planting space. Among them, the spatial concentration of crop planting in urban functional areas is the largest, followed by the urban development zones and the ecological conservation and development zones in northeast Chongqing and the ecological protection and development zones in southeastern Chongqing The least degree