Spatial-temporal Variation and Driving Forces Analysis of Vegetation Coverage in the Huaihe River Basin
Exploring the spatiotemporal evolution characteristics of vegetation coverage in the Huaihe River Basin and the impact of driving factors on vegetation coverage changes is of great significance for promoting regional eco-logical construction and coordinated development of human land relations.Based on MODIS-NDVI image data in the Huaihe River Basin from 2000 to 2021,the temporal and spatial evolution characteristics of vegetation coverage in the Huaihe River Basin were explored and the Sen+Mann-Kendall method was used to analyze the dynamic change law of vegetation cover.Combined with the geographical exploration model,a total of 13 driving factors in three dimensions of topography,climate and human activities were selected and the driving factors affecting vegeta-tion cover were quantitatively analyzed by combining the geographic detector model.The results showed that:The vegetation coverage value in the Huaihe River Basin showed an increasing trend from 2000 to 2021,the growth was rapid from 2000 to 2010,and the growth was slow from 2011 to 2021;The vegetation coverage showed an clear im-provement trend,and the vegetation improvement areas were concentrated in the west and south of the study area,and the degraded areas were concentrated in the eastern,central and northern parts of the study area;Human activi-ties and meteorological factors were the key to affecting vegetation coverage.
Huaihe River BasinVegetation coverageGeographical detectorDriving factor
国家科技期刊平台
NSTL
万方数据
