SCIENTIA GEOGRAPHICA SINICA ›› 2022, Vol. 42 ›› Issue (6): 1091-1101.doi: 10.13249/j.cnki.sgs.2022.06.015

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Correlation Analysis of Land Use Multi-functionalization and Transitional Geo-space in Mountainous Areas: Taking Changning County as an Example

Wang Zhanyun1,3, Deng Wei1,2,*(), Zhang Shaoyao2, Zhang Hao1,3   

  1. 1. Institute of Mountain Hazards and Environment, Chinese Academy of Scineces, Chengdu 610041, Sichuan, China
    2. College of Geography and Resources Science, Sichuan Normal University, Chengdu 610101, Sichuan, China
    3. School of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2021-10-28 Revised:2022-03-22 Online:2022-06-30 Published:2022-06-20
  • Contact: Deng Wei
  • Supported by:
    National Natural Science Foundation of China (41930651)


The ecological, production and living functions of the Transitional geo-space in the mountainous area are highly complex, and the pattern and structure of the three directly affect the multi-functionality and rationality of the land use. There is a multi-objective trade-off relationship between ecological protection and economic and social development in this area, and it is a key area for land space development and pattern optimization. The study takes Changning County, Yibin City as the research area, and quantifies land use functions on a grid scale based on multi-source data. Through landscape superposition analysis and correlation analysis methods, the spatial differentiation characteristics of land multi-functionality are clarified, and the geographic spatial transitional relationship between land functions and terrain factors is revealed. The results show that: 1) The production, ecological and living functions of the transitional geo-space in the mountainous area have multiple combinations and strong spatial heterogeneity. 2) The multi-functionality of the land presents an increasing trend in the transition from the northern plain to the mountainous area in the south. The land dominated by multiple and dual functions is mainly distributed in the central trough and the southern mountainous area, accounting for more than 50% of the total land area. 3) Terrain factors play a major role in the formation of multi-functional landscapes. The critical value of land use multi-function is 650 m above sea level, 200 m topographic relief and 15° slope. Beyond this critical value, land multi-function will tend to decrease, but ecological function will dominate.

Key words: transitional geo-space in mountainous area, land use multi-functionalization, terrain gradient, human-earth relations

CLC Number: 

  • K901