Original ResearchPublished 3 September 2026A study on the spatial assessment of site quality in the Manas River Basin based on the site indexZhongqiong Zhao · Mei Zan · Lili Zhai · Jia Zhou · Jian Ke · Yuting Zhao · Ruilian Yuan · Chenyang Gan · Jimei LiFrontiers in Forests and Global Changedoi 10.3389/ffgc.2026.1923592