Abstract:

Generally, the land-use efficiency is low in the urban agglomerations of China. The high-speed transport construction has been an important factor during the land use change. As a result, it is critical to explore the spatial relationship between high-speed transport superiority degree and land-use efficiency. Taking the 42 counties of Shandong Peninsula urban agglomeration as an example, we build an evaluation model of high-speed transport superiority degree, which is constructed based on the relative density of the highway and the distance from the high-speed rail station and the airport. The land-use efficiency is then calculated by DEA model with capital, labor, economic benefits and environmental benefits as input and output factors. By exploring the spatial relationship between high-speed transport superiority degree and land-use efficiency, we obtain the following results: (1) There is a significant spatial difference in the relationship between the high-speed transport superiority degree and land-use efficiency. Taking the two major hub cities of Jinan and Qingdao as the center, the core circle counties (also including Qingzhou and Weihai sub-hubs) present a significant spatial coordination between their land-use efficiency and high-speed transport superiority degree. With the increase of distance from the hub cities, the spatial coordination is declining. Among them, the land-use efficiency is lower than the high-speed transport superiority degree in the areas along the traffic trunks, which are also away from the hub cities. Meanwhile, the coordination is at a low level in the areas away from hub cities and traffic trunks; (2) Due to mechanism of element agglomeration and endogenous growth, the diversity of high-speed transport has a positive relationship with land-use efficiency; (3) According to the hub effect, high-speed transport facilitates flows of elements and technologies between the core cities and peripheral cites in the form of space spillover. This reconstructs the spatial pattern of regional land-use efficiency; (4) With the help of the balanced layout of expressway, the Shandong Peninsula urban agglomeration can get rid of short board effect caused by less high-speed transport construction. Moreover, owing to the proper node layout of high-speed rail station and airport, land-use efficiency presents not only a well-balanced macro-spatial pattern but also a clustered and linear micro-spatial pattern.

Key words: high-speed transport superiority degree, DEA, land-use efficiency, spatial relationship, Shandong Peninsula urban agglomeration