Effects and driving factors of ecosystem service trade-offs in the Longdong Loess Plateau, China
Received date: 2024-03-06
Revised date: 2024-06-17
Online published: 2025-03-14
Quantifying spatial and temporal changes in ecosystem services and analyzing trade-offs and influencing factors are essential for restoring regional ecological functions. This study focuses on the Longdong Loess Plateau of Gansu Province, China, evaluating four key ecosystem services: water yield, grain provision, soil conservation, and carbon sequestration. The assessment was conducted using the InVEST model, and the Sen+Mann-Kendall method was applied to analyze spatial and temporal change trends of ecosystem services from 2001 to 2020. Trade-off effects among ecosystem services were quantified through correlation analysis and root mean square deviation. Additionally, the geodetector method was used to explore the driving factors of these trade-offs. The findings indicated that: (1) Over the past 20 years, water yield, grain provision, and soil conservation in the Longdong Loess Plateau showed no significant increases, while carbon sequestration demonstrated a notable upward trend. (2) Trade-off effects among ecosystem services exhibited spatial variation. Trade-offs between water yield and grain provision were primarily concentrated in the southeastern region of the Longdong Loess Plateau, while trade-offs between grain provision and soil conservation were distributed in the southern region of the Longdong Loess Plateau, and the degree of trade-offs declined over time. The trends of the degree of trade-offs between grain provision and carbon sequestration showed significant regional increases. (3) The trade-off effects of ecosystem services were influenced by a combination of natural and human factors, with annual precipitation identified as the primary driver. This study provides a scientific basis for regional ecological planning and strategies to enhance ecosystem service quality by addressing trade-off effects.
HUANG Xueyu , XIU Lina , LU Zhixiang . Effects and driving factors of ecosystem service trade-offs in the Longdong Loess Plateau, China[J]. Arid Land Geography, 2025 , 48(3) : 480 -493 . DOI: 10.12118/j.issn.1000-6060.2024.151
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