西北林学院学报2025，Vol.40Issue(5)：11-23,13.DOI:10.3969/j.issn.1001-7461.2025.05.02
2000-2020年黄土高原生态系统服务价值的时空变化及驱动因素
Spatial and Temporal Changes in the Value of Ecosystem Services and Driving Forces on the Loess Plateau,2000-2020
摘要
Abstract
The Loess Plateau is highly fragile,with severe soil erosion and water loss.This study assessed the ESV of the Loess Plateau in 2000,2005,2010,2015,and 2020,based on nine ecosystem types(e.g.cropland,forest,shrubland)and eleven ecosystem service functions(e.g.,food production,raw material supply,water provision).A revised dynamic equivalent factor table was employed,in combination with 30-meter resolution land cover and related datasets.Furthermore,a Bayesian Spatiotemporal Hierarchical Model(BSTHM)was applied to quantify the spatial and temporal patterns of ESV and the influence of so-cio-economic drivers from 2000 to 2020.The results show that the total ESV of the Loess Plateau exhibited an overall increasing trend,with values of 188.556,190.893,192.078,191.784,and 195.487 billion CNY in the five respective years.Spatially,the ESV displayed significant heterogeneity,characterized by a south-east-high to northwest-low pattern.Among the socio-economic driving factors,per capita GDP showed a positive correlation with ESV,whereas population density,gross agricultural output,afforestation area,nighttime light index,highway density,and railway density were negatively correlated.The study proposed"Dynamic Equivalent-Bayesian"coupled framework,targeted policy recommendations are proposed,inclu-ding optimizing ecological restoration models,promoting scientific afforestation,and strengthening land use regulation.关键词
生态系统服务价值/当量因子法/贝叶斯时空层次模型/黄土高原Key words
ecosystem service value/equivalent factor method/Bayesian spatio-temporal hierarchical model/Loess Plateau分类
资源环境引用本文复制引用
李琳琳,王照利,郭涛,任志祥,闫琰,刘伟国..2000-2020年黄土高原生态系统服务价值的时空变化及驱动因素[J].西北林学院学报,2025,40(5):11-23,13.基金项目
国家重点研发计划项目(2024YFD2201501) （2024YFD2201501）
国家重点研发计划青年科学家项目(2022YFF1302200) （2022YFF1302200）
省级重点研发计划(202SFYBXM512). （202SFYBXM512）
