(Sediment Transfer through the Fluvial System – Proceedings of a Symposium held in Moscow, August 2004 – IAHS Publication 288, 2004, pp. 138–146).
210Pbex and 137Cs activities in soil and sediments were used to investigate soil erosion, suspended sediment source and deposition in the Maw-Ki-Syiem drainage basin on the southern slopes of the Meghalaya plateau in northeastern India. This area is known for its high rainfall ranging from 8000 to 24,000 mm year−1. It is shown that in the grassland areas hillslope erosion rates are low (0.21 kg m2 year−1) with most of the mobilized sediment being trapped on the foot-slopes. Stream and recent flood plain sediments are derived primarily from gully and channel bank erosion. The estimated rates of sedimentation on the flood plain are 0.83 g cm-2 year−1 using 137Cs and 1.72 g cm−2 year−1 using 210 Pbex.
Caesium-137, Cherrapunji, Flood plain sedimentation, Lead-210, Overbank deposits, Sediment tracing, Sediment transfer, Soil erosion, Suspended sediment source
