Geospatial-temporal Evolution of urbanization level in Henan Province(2011-2015)

The best is to read these instructions and follow the outline of this text.Urbanization is the process of regional population structure adjustment caused by productivity development, scientific and technological progress and industrial structure adjustment, which is also the inevitable result of the regional interaction.In the paper, the spatial relationships among cities in a region are designed by using the inverse of the shortest time distance between cities in express traffic system, the geospatial-temporal characteristics and evolution patterns of urbanization levels are studied by using spatial statistical analysis methods.The results show that, in Henan province, the differences of urbanization levels are significant, the urbanization levels of cities in the northern part are higher than that of cities in the southern part, which gradually reduce along the direction from southeast to northwest.From 2011 to 2015, the province's urbanization levels have been significantly improved, the city rankings remain unchanged, as the urbanization levels of cities rapid growth, the differences among them are gradually reduced.Urbanization level growth and urbanization level is inversely proportional.There are significantly aggregation characteristics in the spatial distribution of urbanization levels, showing a high-high aggregation in the northwestern part, and low-low aggregation in the southeast part, and from 2011 to 2015, the aggregation tendency gradually stronger.