Retraction notice to “Environmental effect and spatiotemporal pattern of stable isotopes in precipitation on the transition zone between the Tibetan Plateau and arid region” [Sci. Total Environ. 749 (2020) 141559] - Gui Juan; Zongxing Li; Feng Qi; Yuan Ruifeng; Ning Tingting; Zhang Baijuan; Xue Jian; Gao Wende; Nan Fusen; Ding Weixuan; Yang Anle; Liang Pengfei (Science of The Total Environment, 2026)