干旱区地理2025，Vol.48Issue(3)：480-493,14.DOI:10.12118/j.issn.1000-6060.2024.151
陇东黄土高原生态系统服务权衡效应及其驱动因素
Effects and driving factors of ecosystem service trade-offs in the Longdong Loess Plateau,China
摘要
Abstract
Quantifying spatial and temporal changes in ecosystem services and analyzing trade-offs and influenc-ing 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 con-servation,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 conser-vation 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 be-tween 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 re-gion 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 pre-cipitation 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.关键词
趋势分析/权衡/协同/均方根偏差/地理探测器/陇东黄土高原Key words
trends analysis/trade-offs/synergy/root mean square deviation/geodetector/Longdong Loess Plateau引用本文复制引用
黄学煜,修丽娜,陆志翔..陇东黄土高原生态系统服务权衡效应及其驱动因素[J].干旱区地理,2025,48(3):480-493,14.基金项目
甘肃省科技重大专项计划项目(21ZD4FA008)资助 （21ZD4FA008）
