An Ecosystem-service Evaluation Method of a River Basin With Rapid Changes in Land Use Within a Short Term
Year: 2025
Type: article
Abstract: In 2015, Zhangjiakou City was selected as the co-host city for the 2022 Winter Olympics. In order to improve ecosystem service functions, land use types in the region were changed greatly within the short term. Therefore, existing evaluation methods of the ecosystem service value (ESV) are not applicable to such an underdeveloped region. With the year of 2015 as the key time node, a dynamic process evaluation method of ESV was established for Zhangjiakou City based on classic equivalent factors in this study. The five economic coefficients of net primary productivity (NPP) coefficient, precipitation adjustment coefficient, soil conservation adjustment coefficient, habitat adjustment coefficient and accessibility adjustment coefficient were introduced into the classic method to correct the commonly Chinese equivalent factors to obtain the actual ESV. Firstly, the results obtained from the dynamic process evaluation method could clearly distinguish the changing trend of ecosystem service value (ESV) after the change of land use type. Secondly, the ESV increment calculated with the dynamic process evaluation method was more sensitive to land use change. The change in the forest area proportion was the most significant and reached 6.8%, and corresponding ESV increment was 14.89%. Thirdly, from the perspectives of 11 sub-categories of ecosystem services, the ESV of hydrological regulation was the largest and reached 30%. The ESVs of food production, raw material production, maintenance of nutrient cycle, water supply and aesthetic value supply were relatively small. From the sub-categories of enhancing ecosystem services, the ESV of each sub-category increased after changing land use type. Fourthly, after the introduction of five economic adjustment coefficients, the ESVs of the other four categories of ecosystem services, except the ESV of biodiversity, increased significantly after the change in the land use types. The results indicated that the dynamic evaluation method could better identify the sensitive factors affecting the value of regional ecosystem services.
DOI: 10.61784/fer3026
Authors: HeSheng Zhang, MengHao Li, ZiYao Xing, YuLing Zhang, Xin Zan, XiaoYu Jia
Institution: North China Electric Power University
Language: English
Subfield: Global and Planetary Change
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4410527763