Spatial Distribution Characteristics and Optimum Layout of Urban and Rural Areas in Different Geomorphological Types

Zhongyuan Cai,Jing Li,Lianru Duan

doi:10.15446/esrj.v24n3.89450

Abstract

Taking Jinghe River Basin in the Loess geomorphological area and Guangnan County in the karst geomorphological area as the study area, the spatial distribution characteristics of urban and rural areas of different geomorphological types are analyzed. By using GIS and related statistical analysis software, this paper summarizes three basic urban and rural types: river channel type, plateau surface type, and loess terrace horizon prototype in the Loess Landscape Jinghe River Basin. It is known that most towns in the loess plateau gully area are in the Jinghe River Basin. According to the spatial distribution characteristics of urban and rural areas, the optimal layout based on the main structure of five districts, nine River corridors, and four plates is proposed. Using the DEM module of ArcGIS to divide the elevation and gradient of Guangnan County, we know that the density of urban and rural settlements in Guangnan County is low and the spatial distribution is dispersed, and the distribution of urban and rural settlements shows a strong elevation orientation. The distribution of urban and rural settlements has a normal distribution relationship with the elevation. The largest number of urban and rural settlements is between 2.1° and 25°. According to the present situation of settlement distribution, this paper puts forward some optimization strategies, such as appropriate settlement scale, settlement space development monitoring, and so on.

Highlights

China has a vast territory, and there are great differences in the historical basis, natural environment, and economic development of different regions
Based on the relationship between landform types and urban-rural development, this paper focuses on the spatial distribution characteristics of urban and rural areas in Loess and karst landform regions, compares the spatial distribution characteristics of urban and rural areas under different landform types, and puts forward corresponding optimization measures
Guangnan County is located in the southeastern part of Yunnan Province, at the junction of Yunnan, Guangxi, and Guizhou provinces, adjacent to Guangxi Zhuang Autonomous Region, northeastern Wenshan Prefecture

Summary

Introduction

China has a vast territory, and there are great differences in the historical basis, natural environment, and economic development of different regions. In the evolution of urban and rural spatial form, on the one hand, geomorphology directly or indirectly acts on the development and expansion of urban and rural space, causing different responses and changes (Aumaître et al, 2017). Measuring the spatial distribution characteristics and optimizing the layout of urban-rural interactive development level is the premise of taking effective measures to coordinate urban-rural relations and narrow the gap between urban and rural areas. It is the basis of choosing a reasonable model of urban-rural development and formulating optimal countermeasures for urban-rural interactive development in various regions

Methods

Results

Discussion

Conclusion