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MSEC / MultiScale Environmental Changes

Thailand – Maeyom watershed

North Thailand, Phrae province, Huai Ma Nai catchment divided in 5 fitted sub-catchments (total 93ha), on siltstone and sandstone soils, slope gradient 12-50%, rain amount around 1100 mm pear year.

Land use changes: switch from cassava + maize + fallow + orchards to maize mono-crop

Hydro-meteorological and soil losses surveys from 2000

Sediment sampler - Huai Ma Nai 01
Sediment sampler - Huai Ma Nai 02
Sediment sampler and weir of Huai Ma Nai catchment (photo : J.-L Janeau)

Off-site effects measurements of Maethang reservoir from 2002

Spillway of Maethang reservoir

Spillway of Maethang reservoir (photo: J.-L Janeau)