【摘要】 清江流域地处湖北省境内,属于经济欠发达地区,城镇化相对滞后,本文利用GIS技术对其城镇体系的空间结构从垂直和水平的角度进行了量化分析,垂直上分为主城、次主城、卫星城、重点镇和一般集镇,结构为1∶1∶11∶3∶98;水平上以主城和次主城作同心圆;交通上以G209、G318、沪蓉高速、宜万铁路和清江作5km缓冲区分析,缓冲区内集中了49%的城镇,沿清江城镇化率最高为39.1%,而所有交通要素的叠加城镇化率仅为20.7%,偏低。卫星城镇多为县市政府所在地,重点镇仅有3个,显然城镇结构还不合理,应加速重点城镇、次主城和主城的建设。更多还原

【Abstract】 Qingjiang River valley located in Hubei province belongs to economic developing area,the level of urbanization is relatively lagged.The spatial structure of urbanization in vertical and horizontal level were quantitatively analyzed by GIS technological method in the paper.It was classified into main city,second main city,satellite city,key township and general market town according to their spatial structure in vertical level as 1∶1∶1∶3∶98;they were concentric circles of main city and second city in horizontal level.Buffer analysis was conducted to be 5km away from G209,G318,Shanghai-Chengdu Expressway,Wanzhou Railway and Qingjiang River in traffic,although there were 49 percent of town in the buffer,the urbanization rate of towns along Qingjiang River was up to the highest of the urbanization rate by 39.1 percent.The superposition of urbanization integrated considering all transportation elements was low to 20.7 percent.Most of satellite towns were sites of County,and there were 3 key townships in satellite towns.For the reason of evident unreasonable structure of urbanization,the construction speed of main city,second city and key townships should be accelerated.更多还原