“一带一路”倡议背景下甘肃省城市化效率与经济发展水平时空耦合关系研究

"一带一路"倡议提出与建设为中国西部地区发展带来重大机遇。甘肃是"一带一路"倡议的重要区域。本文利用DEA模型、熵权法对甘肃省14个地州市2004年、2008年、2012年和2016年四个节点时间的城市化效率、经济发展水平进行了度量。并利用耦合度模型对两者之间的耦合协调度进行了时空分析，研究结果表明，甘肃省城市化效率在2004-2016年间处于波动中提升状态，且总体效率较低，甘肃省城市化效率值（0.441）远低于全国平均值（0.740）；2004-2016年甘肃省经济发展水平稳中有升，但与全国比较劣势明显，且省域内部经济发展差距显著；研究期内，甘肃省城市化效率与经济发展耦合协调度均处于波动上升状态，耦合度由中强度发展为高强度耦合，协调度由濒临失调发展为勉强协调。省内14个地区，嘉峪关、兰州、金昌和酒泉在四年间始终处于高水平耦合与协调状态，张掖、白银等余下十个地区的耦合协调度也由中低水平发展为中高水平，说明各地区城市化效率与经济发展水平的耦合协调度相对较好。

Temporal and spatial coupling relationship between urbanization efficiency and economic development level in Gansu Province under the Belt and Road Initiative

"The Belt and Road Initiativehas" brought many opportunities for the development of the Western part of China. Gansu is an important area covered by"the Belt and Road Initiative". Using DEA model and Entropy method,urbanization efficiency and economic development level of 14 prefectures(cities)in Gansu Province in 2004,2008,2012 and 2016 were measured. The coupling relationships in Gansu between the urbanization efficiency and the economic development level were analyzed from temporal and spatial by Coupling Degree model. The results showed the urbanization efficiency in Gansu Province was increasing in volatility,but the total urbanization efficiency was lower,and the disparity of the economic development in different cities is obvious,The value of urbanization efficiency in Gansu Province is far lower than the national average. Comprehensive Efficiency in Gansu Province in 2016 is 0.441(the national average is 0.740). The level of economic development in Gansu Province had risen steadily from 200.to 2016. But it has obvious disadvantages compared with the national average. It is obvious that the difference Significant of economic development within province. From 200.to 2016,The coupling degree and coordination degree in Gansu Province is obviously improved,the degree of coupling develops from medium coupling to high coupling,and the degree of coordination develops from near-disorder to coordinating. Jiayuguan,Lanzhou,Jinchang and Jiuquan have been in a state of high level coupling and coordination for four years,and the coupling degree and coordination degree of the remaining ten regions such as Zhangye and Baiyin have also developed from low-medium to medium-high level. It shows that the coupling degree and coordination degree of urbanization efficiency and economic development level in various regions are developing well.