长江经济带人口与土地城市化协调度的空间特征与形成机理
陈锡才1,彭燕梅1,王学良1,许永涛1,王天强1,潘玉君2

(1.楚雄师范学院 地理科学学院,云南 楚雄 675000; 2.云南师范大学 地理学部,昆明 650500)

人口与土地城市化; 协调度; 空间特征; 长江经济带

Spatial Feature and Its Formation Mechanism of the Population and Land Urbanization Coordination Degree in the Yangtze River Economic Belt
CHEN Xicai1,PENG Yanmei1,WANG Xueliang1,XU Yongtao1,WANG Tianqiang1,PAN Yujun2

(1.School of Geographical Science,Chuxiong Normal University,Chuxiong,Yunnan 675000,China; 2.Faculty of Geography,Yunnan Normal University,Kunming 650500,China)

population urbanization and land urbanization; coordination degree; spatial feature; the Yangtze River Economic Belt

备注

人口与土地城市化协调对长江经济带战略地位具有重要意义。运用协调度模型对2000—2018年长江经济带人口与土地城市化的协调度进行了计算和分析,并用灰色系统预测2021年的协调度,在此基础上选取2000年、2018年和2021年的协调度数据并用Arcview 3.3软件制图探索协调度的时空格局,最后用变异系数分析法分析协调度的时空动态差异,从而揭示协调度的空间特征。结果表明:(1)2000年协调、相对协调、相对不协调和不协调4种类型在长江经济带上相间分布;(2)2018年相对协调类型主要集中分布在长江上游地区,相对不协调类型在长江中游和下游地区集聚,不协调类型区域重庆、湖北和上海呈现“飞地”分布的空间格局;(3)2021年不协调类型区域四川、贵州和湖南在空间上呈“带状”分布,而安徽则被协调类型区域江西所阻断。协调类型区域江苏、上海、浙江和江西在长江下游集聚,与上游的云南呈现“飞地”分布的空间格局。相对协调类型区域重庆和湖北则在地理位置上紧邻。鉴于2021年的协调度空间格局及形成机理,为了长江经济带战略以及中华民族伟大复兴中国梦的实现,提出了相应的对策。
The coordination of population urbanization and land urbanization has a strategic influence on the Yangtze River Economic Belt. The coordination degree of the Yangtze River Economic Belt from 2000 to 2018 was calculated and analyzed in the terms of coordination degree models,and the gray system was used to predict the coordination degree in 2021. On this basis,the coordination degree data of 2000,2018 and 2021 were selected to explore the spatial and temporal pattern of coordination degree by using Arcview 3.3 map-making software. Finally,the spatial and temporal dynamic differences of coordination degree were analyzed by analytical approach of variation coefficient,so as to reveal the spatial characteristics of coordination degree. The results show that:(1)in 2000,the four types of coordination,relative coordination,relative incoordination and incoordination alternative distributed in the Yangtze River Economic Belt;(2)in 2018,the relatively coordinated types mainly gathered in the upper reaches of the Yangtze River,while the relatively uncoordinated types concentrated in the middle and lower reaches of the Yangtze River. Chongqing City,Hubei Province and Shanghai City showed the spatial pattern of ‘enclaves' distribution in the uncoordinated types;(3)in 2021,Sichuan Province,Guizhou Province and Hunan Province were spatially ‘band-shaped',while Anhui Province was blocked by Jiangxi Province,a region of coordinated type; Jiangsu Province,Shanghai City,Zhejiang Province and Jiangxi Province gathering in the lower reaches of the Yangtze River and Yunnan Province in the upper reaches presented the spatial pattern of ‘enclaves' distribution; Chongqing City and Hubei Province belonging to relative coordination type,were close to each other geographically; in view of the spatial pattern and formation mechanism of coordination degree in 2021,and for the realization of the strategy of Yangtze River economic belt and the great rejuvenation of the Chinese nation,the corresponding countermeasures should be put forward.