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Arid Land Geography ›› 2021, Vol. 44 ›› Issue (2): 552-564.doi: 10.12118/j.issn.1000–6060.2021.02.26

• Regional Development • Previous Articles     Next Articles

Value evaluation and driving force analysis of ecosystem services in Yinchuan City from 1980 to 2018

WANG Bo1,2(),YANG Taibao1()   

  1. 1. College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu, China
    2. School of Design and Art, North University for Nationalities, Yinchuan 750030, Ningxia, China
  • Received:2020-07-01 Revised:2020-12-06 Online:2021-03-25 Published:2021-04-14
  • Contact: Taibao YANG E-mail:wangbo8774@163.com;yangt@lzu.edu.cn

Abstract:

Accurate ecosystem service value (ESV) evaluation and its driving force analysis relate to regional ecological security and economic development. Based on land-use data of various districts and counties in Yinchuan City, Ningxia Province, China from 1980 to 2018, combined with the change rate, dynamic attitude, sensitivity, and correlation, this study calculated the ESV in Yinchuan and applied GeoDetector to analyze the driving factors. The results show that from 1980 to 2018, the total ESV of different ecological services decreased by 0.755×109 Yuan·km-2. The change range of ESV of most ecological services is small, and the hydrological regulation value is the highest, and the change is significant. The dynamic attitude of water resources supply is the greatest, showing an increasing trend. The sensitivity of grassland and water ESV is strong, and the relationship between water and total ESV is the strongest. From the viewpoint of distribution, the ESV in Lingwu City is the highest and that in Jinfeng County is the smallest. The principal drivers of single-factors are GDP and DEM. In the multifactor interaction drive, GDP ∩ temperature and GDP ∩ DEM contribute most to the ESV distribution in Yinchuan. The distribution of ESV in Yinchuan is predominantly influenced by the interaction of human and natural factors. This study used high-resolution data and various evaluation indicators to account for the ESV of Yinchuan with long-term series in detail. The study evenly selected six time-nodes throughout the time series to highlight the meticulous features of ESV changes of Yinchuan. By exploring the factors changing the ESV, the interaction between the factors was quantified using GeoDetector, indicating that this tool is critical for the ecological environment. This study could provide reliable scientific reference and decision data for the ecological environmental protection and sustainable development of Yinchuan.

Key words: ecosystem service value, driving force analysis, GeoDetector, Yinchuan City