JOURNAL OF NATURAL RESOURCES ›› 2021, Vol. 36 ›› Issue (1): 131-147.doi: 10.31497/zrzyxb.20210109

• Ecosystem and Ecological Preservation • Previous Articles     Next Articles

Spatio-temporal changes of the coupling relationship between urbanization and ecosystem services in the Middle Yellow River

ZHAO Xue-yan(), DU Yu-xuan, LI Hua, WANG Wei-jun   

  1. College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China
  • Received:2020-06-27 Revised:2020-10-19 Online:2021-01-28 Published:2021-03-28

Abstract:

Urbanization is an important factor affecting the pattern of regional ecological security. Clarifying the relationship between urbanization and ecosystem services can provide decision-making references for promoting ecological protection and high-quality development in the Middle Yellow River. Based on the analysis of the spatio and temporal patterns of urbanization and ecosystem services in the Middle Yellow River from 2000 to 2018, the study uses the coupling coordination degree model to analyze the spatio-temporal characteristics of the coupling relationship between urbanization and ecosystem services in the study area. The results show that between 2000 and 2018, the comprehensive urbanization level increased by 72.24%, and the spatial distribution was generally "high in the south and low in the north", with economically developed counties decreasing outward. Grain production, water resource conservation, soil conservation and carbon sequestration services all showed an increasing trend in different spatial distribution trends. Generally, the degree of coupling coordination between grain production, water resource conservation, soil conservation and carbon sequestration services and comprehensive urbanization level is on the rise, but the degree of coupling coordination in the Fenhe-Weihe Plain is low, while that in economically developed counties is high.

Key words: urbanization, ecosystem services, coupling relationship, temporal and spatial changes, Middle Yellow River