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Events
Articles
Origin of silica in rice plants and contribution of diatom Earth fertilization: insights from isotopic Si mass balance in a paddy field
This study (M-TROPICS/BVET) identified and quantified the Si sources to rice plants using a solute mass balance at soil-plant scale and the silicon isotopic signatures of the various Si pools. It reveals that the main Si sources are soil amorphous silica, irrigation water and to a lesser extent Si fertilizer when it was applied. In […]
Movies
ECOSFIX project – Experimental site in Laos
Jean Luc Maeght, from IRD, explains the research protocol used on the experimental site in Laos (M-TROPICS/MSEC), within the ECOSFIX project. The video, in french, lasts 2’29”.
Movies
ECOSFIX project – Protocol / associated systems in Laos
Jean Luc MAEGHT, from IRD, describes the experimental site of ECOSFIX in Laos, in terms of land use and soil features (M-TROPICS/MSEC). The video, in french, lasts 1’19”.
Movies
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”).
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 […]
Movies
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 […]
Movies
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 […]