AUTHOR=Yuan Jie , Bol Roland , Zhao Chensong TITLE=Water quality in the Chinese Qinling Mountains over the last 20 years JOURNAL=Frontiers in Water VOLUME=6 YEAR=2024 URL=https://www.frontiersin.org/journals/water/articles/10.3389/frwa.2024.1440411 DOI=10.3389/frwa.2024.1440411 ISSN=2624-9375