AUTHOR=Du Yi , Wang Xiaoyan , Nan Zhe , Li Tingting , Tang Yi , Huang Longsheng TITLE=Assessment of the vertical preferential flow characteristics and flow types on a slope in a small headwater catchment JOURNAL=Frontiers in Environmental Science VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2025.1515739 DOI=10.3389/fenvs.2025.1515739 ISSN=2296-665X