基于基尼系数计量的城市土地规模均衡研究

A Gini Coefficient-Based Equilibrium Study for the Distribution of City Size

文章采用改进的基尼系数法,定量分析了中国城市土地规模均衡态势与演变规律。量化了中国城市土地规模均衡性。研究结果表明:(1)2011年全国、东、中、西、东北部城市土地规模基尼系数分别为0.55、0.60、0.54、0.46、0.40;(2)1991—2011年间,东、中、西和东北部地区分别经历了"均衡-集聚-集聚"、"分散-高分散-分散"、"均衡-分散-均衡"以及"分散-均衡-高分散"的演变过程。(3)从基尼系数国际准则判断,全国总体上呈现失衡状态,并且东部地区城市土地规模失衡最为严重(0.60),西部其次(0.54),中部和东北地区相对较为均衡(0.46、0.40)。

On the basis of theoretical analysis, the paper adopts a modified gini coefficient method to analysis the proportion- ality and fluctuation of the Country and Provinces. Results indicate that： （1）judging from the international norms, we learn that the national gini coefficient is 0.55, the distribution is imbalanced. The imbalance of eastern urban land scale is most serious （0.6）, the western ranked sencondly （0.54）. However ,it is relatively balanced in central and northeast; （2）judging from international norms of gini coefficient, from 1991 to 2011 year, east, middle, west, northeast regions experienced evolution processes of ＂equi- librium-crowding-crowding＂, ＂dispersed-highdispersed-dispersed＂, ＂equilibrium-dispersed-equilibrium dispersed-equilibri- um-high dispersed （3）According to Gini Coefficient,the imbalance of land scale is the most severe in eastern region of the country （0.60）,followed by the western region（0.54）, the situation of eastern and central regions is relatively balanced（0.46,0.40）.