The fungal counts of the lake sediments (LC1, LC2, and LC3) were generally lower than those of the river sediments (SC1, SC2, and SC3).
The measured carbon utilization in the sediments differed among substrates in the Biolog EcoPlates and revealed differences and similarities between sediment types (river and lake sediments), seasons (spring, summer, fall, and winter sediments), and sites (SC1, SC2, SC3, LC1, LC2, and LC2 sediments).
Twenty-two sampling sites in the inshore and adjacent areas of Caofeidian were selected to collect the surface sediments (Figure 1).
The grain sizes of the surface sediments were measured by a Mastersizer-2000 laser particlesize analyzer (Malvern, UK) after removal of organic matters with 30% [H.sub.2][O.sub.2] with the dispersion of sodium hexametaphosphate.
Hydrological data of annual runoff and suspended sediment
load of Huangjiagang, Xiangyang, Huangzhuang, and Xiantao stations along mainstream of the Han River were collected from the Changjiang Water Resources Commission, China (CWRC) [15,16].
Environmental problems and ecological contradictions are becoming increasingly prominent in the world, and the adsorption and desorption of contaminants onto and from sediment
particles have become hot topics in the study of water environment [1-3].
Because of the high flow caused by precipitation, the stream sediment
characteristics changed dramatically during the study, with a decrease in the E.
Results of Scenario-1 indicates that power units can safely operate for 21 days without any stoppage to flush sedimentation in the sand trap when the diversion flow carries sediment
concentration of 0.1 kg/m3 but the power units have to shutdown in order to flush out the sedimentation from the sand trap chamber just after 3 days in case when the diversion flow carries sediment
concentration of 1.0 kg/m3.
The investment made for reducing sediment
yield in this small catchment area does not make it a viable project like at Mangla where almost all catchment area is favourable for watershed checks and interventions.
The accuracy of the analytical procedures employed for the analysis of the metals in sediments
was checked using the certified reference material of China stream sediment
(GSD-12, GBW07312), obtaining good agreement with certified values.
The main characteristic of submerged vanes, as a method for controlling the sediments
entering the intake, is that due to the pressure difference between both sides of the vane, secondary flows are created behind the vanes which cause that the direction of approaching bed sediments
are changed towards the middle of river.
In addition to the reservoirs of Tarbela and Mangla Dams; almost all barrages and most canals are reasonably full of sediments
. Important issue with reservoirs to dredge out sediments
is the closing of the dams as they are a major source of electric power as per most recommendations of experts.