From shifting cultivation to teak plantation: effect on overland flow and sediment yield in a montane tropical catchment

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dc.creatorRibolzi, Olivier
dc.creatorEvrard, O.
dc.creatorHuon, S.
dc.creatorRouw, Anneke de
dc.creatorSilvera, N.
dc.creatorLatsachack, K.O.
dc.creatorSoulileuth, B.
dc.creatorLefevre, I.
dc.creatorPierret, A.
dc.creatorLacombe, Guillaume
dc.creatorSengtaheuanghoung, Oloth
dc.creatorValentin, Christian
dc.date2016
dc.date2017-09-12T09:34:00Z
dc.date2017-09-12T09:34:00Z
dc.date.accessioned2026-06-27T18:24:08Z
dc.descriptionSoil 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 expanse of traditional slash-andburn cultivation systems in steep montane environments of these regions. The impacts of land-use change on the hydrological response and sediment yields have been investigated in a representative catchment of Laos monitored for 13 years. After the gradual conversion of rice-based shifting cultivation to teak plantation-based systems, overland flow contribution to stream flow increased from 16 to 31% and sediment yield raised from 98 to 609 Mg km-2. This result is explained by the higher kinetic energy of raindrops falling from the canopy, the virtual absence of understorey vegetation cover to dissipate drop energy and the formation of an impermeable surface crust accelerating the formation and concentration of overland flow. The 25-to-50% lower 137Cs activities measured in soils collected under mature teak plantations compared to soils under other land uses illustrate the severity of soil erosion processes occurring in teak plantations.
dc.identifierhttps://hdl.handle.net/10568/83470
dc.identifier.urihttp://hdl.handle.net/123456789/154683
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access
dc.sourceRibolzi, O.; Evrard, O.; Huon, S.; de Rouw, A.; Silvera, N.; Latsachack, K. O.; Soulileuth, B.; Lefevre, I.; Pierret, A.; Lacombe, Guillaume; Sengtaheuanghoung, O.; Valentin, C. 2016. From shifting cultivation to teak plantation: effect on overland flow and sediment yield in a montane tropical catchment. Scientific Reports, 12p. (Online first). doi: 10.1038/s41598-017-04385-2
dc.subjectteak
dc.subjectplantations
dc.subjectsediment
dc.subjectshifting cultivation
dc.subjectoverland flow
dc.subjecterosion
dc.subjectslopes
dc.subjectland use
dc.subjectland management
dc.subjectflow rate
dc.subjectvegetation
dc.subjectcatchment areas
dc.subjectrainfall-runoff relationships
dc.subjectinfiltration
dc.subjectsoil sampling
dc.titleFrom shifting cultivation to teak plantation: effect on overland flow and sediment yield in a montane tropical catchment
dc.typeJournal Article

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Instituto Internacional para el Manejo del Agua (IWMI)