Spatiotemporal changes and driving factors of ecological environment quality in the Shanxi section of the Yellow River Basin from 2000 to 2023
Received date: 2025-04-22
Revised date: 2025-08-03
Online published: 2026-03-11
Based on the Google Earth Engine (GEE) platform, this study coupled aerosol optical depth with the remote sensing ecological index to construct a modified remote sensing ecological index (MRSEI) for comprehensively evaluating the spatiotemporal variation and driving mechanisms of ecological environment quality in the Shanxi section of the Yellow River Basin, China, from 2000 to 2023. The results show that: (1) MRSEI substantially improved the accuracy of ecological environment quality assessment, with stronger texture features and better detail representation. (2) From 2000 to 2023, ecological environment quality in the study area improved overall. Most areas were classified as general or good, with only a small proportion at poor levels. Spatially, MRSEI indicated a low-high gradient from northwest to southeast. The western part of Lüliang City exhibited the poorest ecological quality, with unfavorable conditions also observed in Datong City, Shuozhou City, and Xinzhou City. In contrast, Changzhi City, eastern Linfen City, parts of Jincheng City, and eastern Yuncheng City showed the best conditions. (3) Land use type exerted the greatest influence on ecological environment quality, followed by annual precipitation, slope, and elevation. Interactions among factors were significantly enhanced, particularly between land use type and other variables. This study provides a scientific basis for ecological environment protection and sustainable development in the Shanxi section of the Yellow River Basin.
Yin ZHANG , Congjian SUN , Geng LIU , Jinlong CHAO , Tianwei GENG , Honghong LIU . Spatiotemporal changes and driving factors of ecological environment quality in the Shanxi section of the Yellow River Basin from 2000 to 2023[J]. Arid Land Geography, 2025 , 48(11) : 1983 -1994 . DOI: 10.12118/j.issn.1000-6060.2025.221
表1 2000—2023年改进型遥感生态指数(MRSEI)与5个生态因子的相关性分析Tab. 1 Correlation analysis between MRSEI and five ecological factors from 2000 to 2023 |
| 年份 | NDVI | WET | NDBSI | LST | AOD | 平均相关度 |
|---|---|---|---|---|---|---|
| 2000 | 0.971** | 0.898** | -0.961** | -0.816** | -0.213** | 0.772** |
| 2005 | 0.856** | 0.972** | -0.969** | -0.814** | -0.201** | 0.762** |
| 2010 | 0.963** | 0.882** | -0.958** | -0.785** | -0.149** | 0.747** |
| 2015 | 0.967** | 0.896** | -0.961** | -0.757** | -0.231** | 0.762** |
| 2020 | 0.963** | 0.882** | -0.944** | -0.750** | -0.213** | 0.750** |
| 2023 | 0.967** | 0.891** | -0.959** | -0.712** | -0.084** | 0.723** |
| 相关系数均值 | 0.948** | 0.904** | -0.959** | -0.772** | -0.182** | 0.753** |
注:NDVI、WET、NDBSI、LST、AOD分别为归一化植被指数、湿度指数、干度指数、地表温度、气溶胶光学厚度;**表示相关性在0.01水平上显著。 |
表2 2000—2023年因子探测结果Tab. 2 Factor detection results from 2000 to 2023 |
| 驱动因素 | 2000年 | 2005年 | 2010年 | 2015年 | 2020年 | 2023年 | 2000—2023年均值 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| q值 | 排序 | q值 | 排序 | q值 | 排序 | q值 | 排序 | q值 | 排序 | q值 | 排序 | q值 | 排序 | |||||||
| LUCC | 0.588 | 1 | 0.615 | 1 | 0.642 | 1 | 0.612 | 1 | 0.555 | 1 | 0.452 | 1 | 0.577 | 1 | ||||||
| 高程 | 0.170 | 3 | 0.141 | 3 | 0.148 | 4 | 0.086 | 5 | 0.086 | 4 | 0.113 | 5 | 0.124 | 4 | ||||||
| 坡度 | 0.129 | 4 | 0.138 | 4 | 0.156 | 3 | 0.119 | 3 | 0.155 | 3 | 0.135 | 4 | 0.139 | 3 | ||||||
| 坡向 | 0.029 | 7 | 0.034 | 7 | 0.029 | 8 | 0.032 | 8 | 0.028 | 8 | 0.027 | 8 | 0.030 | 8 | ||||||
| 年降水量 | 0.300 | 2 | 0.256 | 2 | 0.268 | 2 | 0.238 | 2 | 0.335 | 2 | 0.217 | 3 | 0.269 | 2 | ||||||
| 年均气温 | 0.068 | 6 | 0.045 | 6 | 0.051 | 6 | 0.051 | 6 | 0.037 | 7 | 0.072 | 6 | 0.054 | 7 | ||||||
| 人口密度 | 0.029 | 8 | 0.028 | 8 | 0.050 | 7 | 0.039 | 7 | 0.045 | 6 | 0.223 | 2 | 0.069 | 6 | ||||||
| GDP | 0.080 | 5 | 0.060 | 5 | 0.094 | 5 | 0.113 | 4 | 0.059 | 5 | 0.080 | 7 | 0.081 | 5 | ||||||
注:LUCC为土地利用类型;q为各影响因子对生态环境质量的影响力。 |
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