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The Multiscale <scp>TROPIcal CatchmentS</scp> critical zone observatory <scp>M‐TROPICS</scp> dataset <scp>II</scp>: Land use, hydrology and sediment production monitoring in Houay Pano, northern Lao <scp>PDR</scp>

Laurie BoithiasUniversité Fédérale de Toulouse Midi-PyrénéesYves AudaGéosciences Environnement ToulouseStéphane AudryGéosciences Environnement ToulouseJean‐Pierre BricquetUniversité Paris-Est CréteilAlounsavath ChanhphengxayDepartment of Agricultural Land Management (DALaM) NAFRI Vientiane Lao PDRVincent ChaplotInstitute of Ecology and Environmental Sciences of Paris (iEES‐Paris) Sorbonne Université, Univ Paris Est Creteil, IRD, CNRS, INRA Paris FranceAnneke de RouwInstitut d'écologie et des sciences de l'environnement de ParisThierry Henry des TureauxUniversité Paris-Est CréteilSylvain HuonUniversité Paris-Est CréteilJean‐Louis JaneauInstitut d'écologie et des sciences de l'environnement de ParisKeooudone LatsachackDepartment of Agricultural Land Management (DALaM) IRD Vientiane Lao PDRYann Le TroquerInstitute of Ecology and Environmental Sciences of Paris (iEES‐Paris) Sorbonne Université, Univ Paris Est Creteil, IRD, CNRS, INRA Paris FranceGuillaume LestrelinDepartment of Agricultural Land Management (DALaM) IRD Vientiane Lao PDRJean‐Luc MaeghtInstitute of Ecology and Environmental Sciences of Paris (iEES‐Paris) Sorbonne Université, Univ Paris Est Creteil, IRD, CNRS, INRA Paris FrancePierre MarchandInstitute of Ecology and Environmental Sciences of Paris (iEES‐Paris) Sorbonne Université, Univ Paris Est Creteil, IRD, CNRS, INRA Paris FrancePierre MoreauUniversité Paris-Est CréteilAndrew NobleDepartment of Agricultural Land Management (DALaM) IWMI Vientiane Lao PDRAnne Pando‐BahuonInstitute of Ecology and Environmental Sciences of Paris (iEES‐Paris) Sorbonne Université, Univ Paris Est Creteil, IRD, CNRS, INRA Paris FranceKongkeo PhachomphonDepartment of Agricultural Land Management (DALaM) MAF Vientiane Lao PDRKhambai PhanthavongDepartment of Agricultural Land Management (DALaM) IRD Vientiane Lao PDRAlain PierretDepartment of Agricultural Land Management (DALaM) IRD Vientiane Lao PDROlivier RibolziInstitut de Recherche pour le DéveloppementJean RiotteGéosciences Environnement ToulouseHenri RobainInstitute of Ecology and Environmental Sciences of Paris (iEES‐Paris) Sorbonne Université, Univ Paris Est Creteil, IRD, CNRS, INRA Paris FranceEmma Rochelle‐NewallInstitute of Ecology and Environmental Sciences of Paris (iEES‐Paris) Sorbonne Université, Univ Paris Est Creteil, IRD, CNRS, INRA Paris FranceSaysongkham SayavongDepartment of Agricultural Land Management (DALaM) MAF Vientiane Lao PDROloth SengtaheuanghoungDepartment of Agricultural Land Management (DALaM) MAF Vientiane Lao PDRNorbert SilveraSorbonne UniversitéNivong SipaseuthDepartment of Agricultural Land Management (DALaM) MAF Vientiane Lao PDRBounsamay SoulileuthDepartment of Agricultural Land Management (DALaM) IRD Vientiane Lao PDRXaysatith SouliyavongsaDepartment of Agricultural Land Management (DALaM) MAF Vientiane Lao PDRPhapvilay SounyaphongDepartment of Agricultural Land Management (DALaM) IRD Vientiane Lao PDRSengkeo TasakethDepartment of Agricultural Land Management (DALaM) IRD Vientiane Lao PDRChanthamousone ThammahacksaDepartment of Agricultural Land Management (DALaM) IRD Vientiane Lao PDRJean-Pierre ThiébauxInstitut de Recherche pour le DéveloppementChristian ValentinUniversité Paris-Est CréteilOlga VigiakDepartment of Agricultural Land Management (DALaM) IWMI Vientiane Lao PDRMarion ViguierUniversité Paris-Est CréteilKhampaseuth XayyathipDepartment of Agricultural Land Management (DALaM) MAF Vientiane Lao PDR

2021en

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Annotatsiya

Abstract Mountain regions of the humid tropics are characterized by steep slopes and heavy rains. These regions are thus prone to both high surface runoff and soil erosion. In Southeast Asia, uplands are also subject to rapid land‐use change, predominantly as a result of increased population pressure and market forces. Since 1998, the Houay Pano site, located in northern Lao PDR (19.85°N 102.17°E) within the Mekong basin, aims at assessing the long‐term impact of the conversion of traditional slash‐and‐burn cultivation systems to commercial perennial monocultures such as teak tree plantations, on the catchment hydrological response and sediment yield. The instrumented site monitors hydro‐meteorological and soil loss parameters at both microplot (1 m 2 ) and small catchment (0.6 km 2 ) scales. The monitored catchment is part of the network of critical zone observatories named Multiscale TROPIcal CatchmentS (M‐TROPICS). The data shared by M‐TROPICS in Houay Pano are (1) rainfall, (2) air temperature, air relative humidity, wind speed, and global radiation, (3) catchment land use, (4) stream water level, suspended particulate matter, bed particulate matter and stones, (5) soil surface features, and (6) soil surface runoff and soil detachment. The dataset has already been used to interpret suspended particulate matter and bed particulate matter sources and dynamics, to assess the impact of land‐use change on catchment hydrology, soil erosion, and sediment yields, to understand bacteria fate and weed seed transport across the catchment, and to build catchment‐scale models focused on hydrology and water quality issues. The dataset may be further used to, for example, assess the role of headwater catchments in large tropical river basin hydrology, support the interpretation of new variables measured in the catchment (e.g., contaminants other than faecal bacteria), and assess the relative impacts of both climate and land‐use change on the catchment.

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DOI: 10.1002/hyp.14126

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