HUBEI AGRICULTURAL SCIENCES ›› 2021, Vol. 60 ›› Issue (16): 76-83.doi: 10.14088/j.cnki.issn0439-8114.2021.16.014

• Resource & Environment • Previous Articles     Next Articles

Spatial-temporal evolution characteristics of the production-living-ecological spatial function coupling coordination in the western Sichuan urban agglomeration

LIU Tao, HOU Lan-gong   

  1. School of Civil Engineering and Architecture, Southwest University of Science and Technology,Mianyang 621000,Sichuan,China
  • Received:2020-07-17 Online:2021-08-25 Published:2021-09-09

Abstract: Based on the production-living-ecological spatial theory and the coupling coordination model, the spatial functions, coupling degrees, and coupling coordination degrees of the production-living-ecological of 68 districts and counties in the western Sichuan urban agglomeration from 2003 to 2018 were quantitatively measured, and their temporal-spatial distribution pattern were revealed. The results show that the county-level production function of the western Sichuan urban agglomeration shows "one core, multiple levels, and two belts" growth trend, and the growth rate of the production function in the east is higher than that in the west. Areas with high living functions are mostly distributed in the middle of the study area, and present the spatial characteristics of Chengdu's central urban area as the core area, and the main urban areas of other prefecture-level cities as multi-level areas, driving the overall improvement of living functions in the surrounding areas. In terms of space, the ecological function presents an obvious spatial distribution pattern of high surroundings, low in the middle, high in the west, and low in the east. From the time series dimension, it can be seen that the ecological functions of the northern and western regions have shown a continuous upward trend. The degree of correlation between production, life and ecological space in the western Sichuan urban agglomeration has shown an upward trend from antagonism to coordinated coupling, and it is manifested in the form of spatial increase from "point to surface", and the degree of spatial function coupling and coordination of production-living-ecological. It is in a state of fluctuating growth, with the largest increase in the mildly dysfunctional phase; the evolutionary trend of the degree of coupling and coordination of the production-living-ecological spatial function is close to the "∩"-shaped growth curve.

Key words: the production-living-ecological spatial function, coupling and coordination, temporal and spatial evolution characteristics, western Sichuan urban agglomeration

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