Impact of drought on teak physiology
This video shows the experimental site used for the ECOSFIX project in Laos (M-TROPICS/MSEC) in November 2012 (in french, 10’28”).
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Missions
Etude de la sédimentation du réservoir de la Maethang
Au Nord de la Thaïlande, dans la province de Phrae, une première étude de la sédimentation du réservoir de la Maethang dédié à l’irrigation a eu lieu entre 2004 et 2006, menée par J.-L. Janeau et S. Huon (iEES Paris), leurs étudiants respectifs et leur partenaire thaï du Royal Forest Department. Une nouvelle campagne de […]
Articles
Linking crop structure, throughfall, soil surface conditions, runoff and soil detachment: 10 land uses analyzed in Northern Laos
In montane Southeast Asia, deforestation and unsuitable combinations of crops and agricultural practices degrade soils at an unprecedented rate. Typically, smallholder farmers gain income from “available” land by replacing fallow or secondary forest by perennial crops. The aim of this study (M-TROPICS/MSEC) was to understand how these practices increase or reduce soil erosion. The paper […]
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Promotion of current research in Lao PDR through the French Embassy in Vientiane
Dr. Olivier Ribolzi, from IRD, promotes the last 15 years of research in Northern Laos, in collaboration with the Ministry of Agriculture and Forestry of Lao PDR, within the frame of the Houay Pano CZO (M-TROPICS/MSEC). Dr. Ribolzi warns about the impacts of rapid land use changes on water and soil quality, and on water […]
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Water flow measurements training at Houay Pano CZO, Lao PDR
A water flow measurements’ training was held from October 28 to November 1, 2013, at Houay Pano CZO (M-TROPICS/MSEC) in Ban Laksip, Luang Prabang Province. The training was organized by IRD, LUSES, iEES Paris, GET and lao (DALaM), thai (NPD) and vietnamese (SFRI) partners. It involved students from universities and research institutes of these 3 […]
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Impacts of teak expansion on environment and human health
Short summary of the latest research on the Houay Pano CZO (M-TROPICS/MSEC) dealing with teak expansion, the impact of understorey management on soil surface features and water infiltration, and the consequences of increased surface runoff and soil erosion on pathogens’ transport. Video (4’39) can be watched here.
Articles
REY-Th-U solute dynamics in the critical zone
Combined influence of chemical weathering, atmospheric deposit leaching, and vegetation cycling (Mule Hole watershed, South India): the source and proportion of REY, Th, and U exported by groundwater and by the ephemeral stream along with the elemental proportions passing through vegetation have been assessed in the subhumid tropical forested CZO of Mule Hole (M-TROPICS/BVET), Southern […]
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How can we manage a resource we don’t understand?
“When John Rowell moved to India in 2012, he had a limited understanding of ‘water problems’. A chance encounter with a member of the Indo-French Cell for Water Sciences led him on a six month journey to better understand our most precious resource…” Full text can be found here.
Articles
From shifting cultivation to teak plantation: effect on overland flow and sediment yield in a montane tropical catchment
Soil erosion supplies large quantities of sediments to rivers of Southeastern Asia. It reduces soil fertility of agro-ecosystems located on hillslopes, and it degrades, downstream, water resource quality and leads to the siltation of reservoirs. An increase in the surface area covered with commercial perennial monocultures such as teak plantations is currently observed at the […]