| Issue |
E3S Web Conf.
Volume 707, 2026
2026 2nd International Conference on Energy Engineering and Pollution Control (EEPC 2026)
|
|
|---|---|---|
| Article Number | 01005 | |
| Number of page(s) | 11 | |
| Section | Energy Engineering and Environmental Pollution Control | |
| DOI | https://doi.org/10.1051/e3sconf/202670701005 | |
| Published online | 27 April 2026 | |
Spatiotemporal evolution and driving forces of vegetation coverage in Ejina Oasis from 2000 to 2020
1 Heihe Water Resources and Ecological Protection Research Center, 730030 Lanzhou, China
2 Heihe Ejina Water Resources and Ecological Protection Research Center, 735400 Alashan, China
3 College of Earth and Environmental Sciences, Lanzhou University, 730030 Lanzhou, China
Abstract
In order to objectively understand and evaluate the vegetation evolution characteristics of Ejina Oasis after the ecological water diversion of Heihe River, based on the NDVI data set from 2000 to 2020, spatiotemporal evolution of vegetation coverage ( FVC ) in the study area were analyzed by trend analysis, Sen + MK, Hrust index and barycenter migration model. Using the optimal parameter geographic detector, this study investigated the spatial differentiation characteristics and driving forces of FVC. The results revealed the following (1) The multi-year average FVC in the study area increased at an average annual rate of 0.35%, with the most pronounced rise occurring in the Banbul River area. (2) The FVC trend change during the study period was mainly significantly improved, with an area ratio of 87.78 %. Compared with the past, the vegetation in the future will change from improvement to degradation, accounting for 44.94 %, concentrated in desert, Gobi and other areas with weak contact with surface water. (3) Initially situated at the confluence of the upper East River and the Andu River area, the FVC gravity center in the study area has shifted northeastward, covering a total distance of 4.14 km over 21 years. (4) T Driving force detection was conducted for typical years at 5-year intervals. Regarding single factors, land use, GDP, human activity intensity, and soil type emerged as key drivers of FVC spatial differentiation, with the q-value for distance to river showing the largest increase. In terms of interactions, the GDP∩land use pair demonstrated the strongest effect. The research results can provide ideas for exploring the vegetation evolution mechanism in the core oasis area of Ejina.
© The Authors, published by EDP Sciences, 2026
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.