Acta Geographica Sinica ›› 2019, Vol. 74 ›› Issue (9): 1921-1937.doi: 10.11821/dlxb201909016

• Ecosystem Services • Previous Articles     Next Articles

Supply and demand matching of ecosystem services in loess hilly region: A case study of Lanzhou

LIU Licheng1,3,LIU Chunfang2,3(),WANG Chuan1,3,LI Pengjie1,3   

  1. 1. College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
    2. College of Social Development and Public Administration, Northwest Normal University, Lanzhou 730070, China
    3. Gansu Engineering Research Center of Land Utilization and Comprehension Consolidation, Lanzhou, 730070, China
  • Received:2019-03-04 Revised:2019-08-01 Online:2019-09-25 Published:2019-09-25
  • Contact: LIU Chunfang E-mail:liuchunfang@nwnu.edu.cn
  • Supported by:
    National Natural Science Foundation of China(41861034)

Abstract:

The sustainable supply of ecosystem services is the basis of the sustainable development. Human beings satisfy the demand and improve their own well-being through the consumption of ecosystem services. It is of great significance for the management of regional ecosystems and the effective allocation of resources to study the demand and consumption of ecosystem services and to analyze the supply and demand characteristics of ecosystem services and their spatial trade-offs. Based on the multi-source data such as land cover, meteorological observation and statistical yearbook in Lanzhou in 2017, the spatial analysis tools including InVEST model, ArcGIS and GeoDA were used to calculate the supply and demand of water yield, food supply, carbon storage and soil conservation. The supply and demand matching of ecosystem services in the study area was analyzed and evaluated. The results show that: (1) The supply and demand of ecosystem services have obvious spatial heterogeneity. The total supply of services is greater than the total demand, but there are differences between different sub-regions and different kinds of ecosystem services. (2) The supply-demand ratio of comprehensive ecosystem services is 0.039. There are differences in supply-demand matching of different kinds of ecosystem services: water yield service (0.098) > carbon storage service (0.066) > food supply service (0.030) > soil conservation service (0.001), and there are significant differences in supply-demand matching between urban and rural areas. (3) There are different kinds of spatial matching pattern between supply and demand of ecosystem services, including "high-high spatial matching", "low-low spatial matching", "high-low spatial dislocation" and "low-high spatial dislocation". (4) There are obvious synergic effects in the balance of supply and demand of services in Lanzhou, which are "high-high synergy" and "low-low synergy".

Key words: loess hilly region, ecosystem services, supply and demand matching, spatial differentiation