[Objective] The ecological evolution and driving mechanism of vegetation in Yulin City

Shaanxi Province

were studied to provide scientific data for the effect of ecological restoration projects in Yulin City.[Methods] Based on the MODIS satellite vegetation index product mod13Q1 and a pixel bisection method from 2000 to 2018

the vegetation ecosystem of Yulin City in Shaanxi Province

China

was retrieved

and the driving mechanism of the influence of climate conditions and human factors on vegetation ecological change was studied by trend analysis and correlation analysis.[Results] ① From 2000 to 2018

the vegetation ecology of Yulin City improved significantly

which was mainly manifested in the extremely significant increase trend of vegetation coverage in fluctuation

with an average annual growth rate of 1.47%. Wubu County had the largest increase among the districts and counties under its jurisdiction. ② From 2000 to 2018

the overall climate conditions became warmer and humider

and the annual precipitation showed a significant increase trend. The annual average temperature increase trend was not significant. The correlation between annual precipitation and vegetation coverage was significant

but the correlation between annual temperature and vegetation coverage was insignificant.[Conclusion] The project of returning farmland to forest and the project of the demonstration and construction of sand prevention and control have adjusted the industrial structure and reduced soil erosion. The quicksand in the sandy grassland of the Maowusu Desert has been effectively controlled

and the ecological construction benefits are significant. The ecological restoration project is the main driving force of vegetation ecological restoration in the study area.