It is argued that the main factors for the poor performance were the high inter- and intra-annual variability of bedload transport, which coupled with the construction of one-stage spillways, led to siltation of the reservoirs.
Although a correlation between percentage coral cover and sediment levels was not significant due to the small sample size, a detailed study is required to better understand the impact of siltation on living coral decline in the bay and how this can contribute to habitat loss and a reduction in fish diversity.
They continued cultivating the steep river banks, and when the rains came there was heavy siltation of the system.
Soil erosion, induced by forest denudation in the Artibonite valley, has resulted in severe siltation of the reservoir and has greatly reduced its agricultural and energy potential.
It causes the siltation of the tributaries of the Ganges and siltation of other rivers.
A GIS-linked numerical model shows that the flood levels in the delta depend on the combined impacts of high river flows in the Mekong River, storm surges, sea level rise, and the likely, future siltation of the Mekong Estuary resulting from the construction of dams in China as well as many other dams proposed throughout the remaining river catchment.
Unreasonable operation of the reservoir and incoming hyperconcentrated floods accompanied by retrogressive erosion also aggravate the siltation of the main channel of the river.
High resolution acoustic data interpretation shows that the thickness of recent sediments due to siltation of the reservoir reaches 3.5-4.0 3.5-4.0
These activities have seriously depleted the vegetative cover of the basin with hydrological and geomorphologic implications such as flooding, soil erosion, siltation of the river channel, and evaporation (Kusimi 2008).
The analysis revealed that major problems causing poor performance of the charco dams were: (i) rapid siltation of the charco dams, (ii) low water retention period, and (iii) lack of or inadequate working tools to carry out maintenance works.
