AUTHOR=Peng Tao , Zhao Lei , Wang Peng TITLE=Water resource safety assessment and limiting factor diagnosis based on improved concept and matter–element analysis models: a case study of a typical karst area in southwest China JOURNAL=Frontiers in Environmental Science VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2024.1451365 DOI=10.3389/fenvs.2024.1451365 ISSN=2296-665X