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Progress in Earth and Planetary Science
Fig. 5 | Progress in Earth and Planetary Science

Fig. 5

From: Geomorphological processes and their connectivity in hillslope, fluvial, and coastal areas in Bangladesh: A review

Fig. 5

A conceptual diagram showing the geomorphic connectivity from the Himalayan upstream to the BoB based on the existing literature (Goodbred and Kuehl 1999; Islam et al. 1999, 2001; Wasson 2003; Garzanti et al. 2011; Jain et al. 2012; Dietrich et al. 2020). On the right side, sediment contribution from upstream two major basins is shown. On the left side, the connected (1) and partially connected (2) or disconnected (3) geomorphic systems are visualized from source to sink areas. The fluvial sedimentation processes (i.e., excessive sediment sequestering, riverbed aggradation) and anthropogenic stressors (i.e., river engineering, barrage, and dam construction) may change the geomorphic connectivity in the GBM river system. The altering geomorphic connectivity from connected to partially connected or disconnected, impeded by sediment trapping, may significantly impact the GBM river’s hydro-geomorphic system. Mt/y denotes the million tons per year

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