水土保持通报2023，Vol.43Issue(6)：304-310,323,8.DOI:10.13961/j.cnki.stbctb.2023.06.036
1986-2021年彬长矿区植被覆盖度时空变化及其影响因子
Spatial-temporal Variation of Vegetation Coverage and Its Influencing Factors in Binchang Mining Area from 1986 to 2021
摘要
Abstract
[Objective]The change characteristics and influencing factors of vegetation coverage and its spatial distribution in the Binchang mining area were analyzed,and the ecological status of the mining area was evaluated in order to provide a scientific reference and theoretical basis for reclamation and ecological restoration of the mining area.[Methods]Landsat Surface Reflectance Tier 1 data(30 m resolution)from 1986 to 2021 were obtained from the Google Earth Engine cloud platform.Based on a pixel binary model,the trend analysis method and F-test were used to quantitatively analyze the temporal and spatial variation of vegetation coverage in the Binchang mining area over many years.Geodetector was used to analyze the spatial heterogeneity of vegetation coverage.[Results]① Vegetation coverage in the Binchang mining area increased from 1986 to 2021,and the overall growth trend was good(average growth rate of 0.64％/a).The average multi-year vegetation coverage in the study area was relatively high,with the area of medium coverage and greater accounting for 87.14％ of the total area.The spatial distribution was characterized as "higher in the southeast and lower in the northwest".② In terms of the change trend of vegetation coverage,the study area was dominated by significantly improved areas,accounting for 56.65％ of the total area.However,there were still some areas with significant vegetation degradation,mainly concentrated in the area near urban river roads.③ The factors influencing vegetation coverage followed the order of slope＞elevation＞annual precipitation＞GDP＞population density＞annual average temperature＞vegetation type＞soil type.The interaction between slope and annual precipitation had the strongest influence on the spatial heterogeneity of vegetation coverage.[Conclusion]From 1986 to 2021,the vegetation coverage in the Binchang mining area was good,showing a significant growth trend as a whole,and the vegetation improvement was obvious.The dominant factor affecting the spatial heterogeneity of vegetation coverage in the study area was slope.关键词
植被覆盖度/彬长矿区/Google Earth Engine(GEE)/地理探测器Key words
vegetation coverage/Binchang mining area/Google Earth Engine(GEE)/geodetector分类
资源环境引用本文复制引用
文帆,陈秋计,黄兰,王志国..1986-2021年彬长矿区植被覆盖度时空变化及其影响因子[J].水土保持通报,2023,43(6):304-310,323,8.基金项目
陕西省软科学研究计划项目"陕西省黄河流域煤炭资源开发与生态环境协调发展研究"(2022KRM034) （2022KRM034）
