Abstract:
Vegetation is an important part for maintaining regional ecological balance, so it is of great practical significance to study the law of vegetation cover change and reveal the relationship between driving factors for regional ecological construction. Based on the average annual enhanced vegetation index (EVI) data from 2000 to 2018, the temporal and spatial evolvement and trend change of EVI in Jiangxi Province were analyzed through trend analysis, and the driving factors of vegetation cover were detected by geodetector from the angle of dynamic combination. The results show that: ① There are significant differences in the spatial distribution of EVI in Jiangxi Province, which shows that the EVI is lower in the central and northern parts, higher in the south than in the north, and higher in the hills than in the plain; ② During the study period, Jiangxi Province EVI showed a good development trend: EVI increase and decrease areas respectively accounted for 94% and 6% of the province's total area; ③ From a static point of view, LUCC is the main driving factor of EVI spatial distribution in Jiangxi Province, and the interaction between LUCC and slope has the strongest explanatory power, which shows that human activities and preference for topography affect the spatial distribution of vegetation cover; ④ From a dynamic point of view, precipitation is the dominant factor of EVI change, and the combination of precipitation and LUCC has the strongest interpretation of EVI.