Research On The Statistical Measurement Of The Radiation Ability Of Regional Central Cities In Gansu Province

As the world economy globalization and deepening of regional economic integration,economic cooperation among cities gradually become the world’s leading carriers,as well as regional competition in 21 st century.Interdependence between cities and regions,promote each other.Under the existing mechanism of socialist market economy in China,relative to the general city in the region,the center city dominates the economy development of the region.Their radiating strength determines the speed and quality of regional economic development.As an important central city in the West and the only regional central city in Gansu Province,Lanzhou has witnessed rapid economic growth,significantly enhanced development vitality and increasingly improved urban radiation capacity in recent years.The General Secretary Xi Jinping pointed out that Lanzhou should speed the progress of the construction of a modern city at the Symposium on Ecological Protection and HighQuality Development of the Yellow River Basin.The article takes the comprehensive radiation capacity of Lanzhou as the main research contents according to relative theory of the regional economics.Based on the level of the economy development,science technology and culture level,scale of the city,opening-up,external contact ability,a total of 28 relevant indicators are selected to build a comprehensive evaluation index system of Lanzhou’s radiation capacity.The comprehensive ranking of Lanzhou’s radiation capacity is calculated by using analytic hierarchy process.The radiation range and radiation capacity of Lanzhou are calculated by using the fracture point model and field strength model.The grey correlation model is selected to analyze various factors affecting Lanzhou’s radiation capacity,So as to comprehensively understand and grasp the prominent problems existing in the process of urban radiation in Lanzhou,and put forward countermeasures and suggestions to promote the improvement of its radiation capacity,which will help to improve the urban development level of Lanzhou and promote the coordinated economic and social development of Gansu and even the western region.Through the above analysis and research,the following relevant conclusions are obtained:(1)From 2009 to 2019,the comprehensive radiation capacity of Lanzhou showed a upward trend.In terms of the growth rate,the growth rate of economic development level was the fastest;The second is the level of science,technology and culture and the level of opening to the outside world;The scale of the city and its ability to connect with the outside world increased slightly.(2)Compared Lanzhou to Chongqing,Chengdu,Xi’an,Yinchuan,Urumqi and Xining,it is found that the Lanzhou is in the middle and lower reaches of economic development level;In terms of scientific,technological and cultural level,it is stable at the medium level;In terms of urban scale,there is little gap between the other six cities,including Lanzhou,except Chongqing;In terms of the level of opening to the outside world,although it is not in the forefront,it has improved significantly in recent years and is at a medium level in terms of external relations.(3)The radiation range is expanding constantly,with the directionality of the radiation range is more obvious.The comprehensive radiation range shows an expansion trend in the West and East,i.e.Xining,Yinchuan and Xi’an,and a contraction trend in the south,i.e.Chengdu and Chongqing.(4)There is a positive correlation between Lanzhou’s comprehensive radiation capacity and various factors.From the perspective of primary indicators,the level of external relations and economic development have the greatest impact on Lanzhou’s radiation capacity,followed by the level of science,technology and culture,and the opening-up has the least impact on Lanzhou’s radiation capacity.Specifically,the top three indicators are regional GDP,total freight volume and total post and telecommunications business volume,and the impact of the three is very close;Followed by investment in fixed assets,investment in scientific research funds and number of patents,ranking fourth,fifth and sixth respectively;The correlation between the total import and export volume and the number of tourists is low,ranking seventh and eighth.According to the above research findings,the prominent problems existing in Lanzhou are: the overall economic strength is not strong;Lack of scientific and technological innovation ability;The advantages of traffic location need to be improved;The degree of opening to the outside world is not high.Accordingly,the suggestions to promote the radiation capacity of Lanzhou are as follows: optimize the industrial structure;Build a comprehensive transportation hub;Accelerate the construction of digital intelligent infrastructure;Create an atmosphere of scientific,technological and cultural innovation;Upgrade the talent introduction mode;Improve the investment and financing environment.