Influence of Surface Water on Desert Vegetation Expansion at the Landscape Scale: A Case Study of the Daliyabuyi Oasis, Taklamakan Desert

Surface water is an important factor affecting vegetation change in desert areas. However, little research has been conducted on the effects of surface expansion. In this study, annual spatial distribution range and Daliyabuyi Oasis from 1990 to 2020 was extracted using Landsat time-series images. Based multi-temporal multi-scale remote sensing images, several plots were selected demonstrate process landform expansion, influence expansion analyzed. The results show that coverage have increased 2020; a critical drives vegetation. On one hand, study area essential for reshaping riparian landform, driving transformation dunes into floodplains, increasing potential colonization sites changes ultimately changed redistribution water, ensuring enough nutrients provided by sediment available plant growth. Our provides reference restoration sustainable development oases.