Arid Zone Research ›› 2022, Vol. 39 ›› Issue (4): 1222-1233.doi: 10.13866/j.azr.2022.04.23

• Ecology and Environment • Previous Articles     Next Articles

Relationship between trade-off intensity of ecosystem services and matching degree of supply and demand: A case study in Shanxi Province

FENG Qiang1(),ZHAO Wenwu2(),DUAN Baoling1   

  1. 1. College of Resources and Environment, Shanxi University of Finance and Economics, Taiyuan 030006, Shanxi, China
    2. State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
  • Received:2021-11-29 Revised:2022-01-03 Online:2022-07-15 Published:2022-09-26
  • Contact: Wenwu ZHAO E-mail:fengqiang921@163.com;zhaoww@bnu.edu.cn

Abstract:

Revealing the relationship characteristics between the intensity of ecosystem service (ES) tradeoffs and the matching degree of ES supply and demand can provide possible ways to alleviate the ES conflict and supply-demand contradiction simultaneously. The districts and counties of Shanxi Province are selected in this study. Considering the tradeoff between supply and support service, tradeoff type 1 is when the supply service is relatively enhanced but support service is decreased, whereas tradeoff type 2 is the opposite condition. The influencing factors of ES tradeoffs and supply-demand and their related characteristics are revealed by redundancy analysis and piecewise linear regression. The following results are presented. (1) The high-value regions of tradeoff type 1 and the low-value regions of supply-demand ratio are mainly located in the basins, and the high-value regions of tradeoff type 2 and supply-demand ratio are mainly located in the mountainous area. (2) Tradeoff type 1 is mainly affected by cropland, forestland, grassland, air temperature, and other factors. Meanwhile, tradeoff type 2 is primarily influenced by cropland, forestland, NDVI, and soil organic matter, but the direction of effects is opposite to that of tradeoff type 1. (3) The forestland, grassland, and slope gradient have significant positive effects on the supply-demand ratio of type 1, while the cropland and construction land have significant negative effects. The factors have minimal effects on the supply-demand ratio of type 2. (4) The effects of factor direction on tradeoff type 1 and the supply-demand ratio are opposite, which mainly contributes to the negative correlation between them. The response of the ES supply-demand ratio to tradeoffs is relatively strong when the contradiction between ES supply and demand is small. However, this response weakens with the deepening of the supply-demand contradiction. The relationship characteristics indicate the ecological dilemma: the human demand increases-development intensity increases-tradeoff type 1 enhances-the contradiction between supply and demand intensifies. A weak positive correlation is observed between tradeoff type 2 and supply-demand ratio, indicating the situation of ecological surplus. Overall, a correlation is observed between ES tradeoff and supply-demand. The results generally present the correlation characteristics and its formation mechanism, which can provide a scientific basis for land ecological restoration and management.

Key words: ecosystem services, supply and demand, trade-offs, drivers, Loess Plateau