额济纳绿洲植被恢复潜力研究.

In order to analyze the ecological management effect and future vegetation restoration potential of Ejina Oasis at the tail of the Heihe River, Normalized Difference Vegetation Index (NDVI) was extracted based on the MOD13Q1 data set from 2000 to 2020. This paper used Sen trend and M-K test to analyze the spatiotemporal variation characteristics of vegetation in the Ejina Oasis. Considering the factors of topography, geomorphology, hydrology, soil and vegetation type, the similar habitat method was used to explore the potential and spatial pat- tern of oasis vegetation restoration. The results show that NDVI shows an increasing trend from 2000 to 2020, and the annual growth rate is 0.001 3/a. The proportion of areas with a significant increase in NDVI in spring on a seasonal scale is the highest. The vegetation coverage near the Ejina Banner government is relatively high and the vegetation coverage in the middle reaches of Xihe River increases significantly during the study period. In the future, the vegetation will still show a spatial distribution pattern of high around the two rivers and low at the edge of Ejina Oasis. The lower reaches of the surrounding areas of the tail lake are close to or have reached the maximum recovery potential. The vegetation enhancement potential of Badaohe to Swan Lake channel, Qidaohe tail channel, Sidaohe and Liudaohe tail channel and the west of Xihe lower section are great. [ABSTRACT FROM AUTHOR]