Deep-water navigation channels in the tidal reaches of lower Yangtze River are affected by water and sediment fluxes that produce complex shoals unstable channel conditions. The Fujiangsha reach is particularly difficult to manage, as it has many braided within fluctuation zone. In this study, hydrologic topographic data from 2012 2017 were used examine variations deposition erosion, flow diver...

Sand dams, a water-harvesting structure employed by rural communities in drylands have an inconsistent record of effectiveness. While many sand dams are highly functioning, improper siting, siltation, seepage, and high rates evaporation from shallow reservoirs inhibit the water storage capacity some dams. This study examines large-scale drivers dam potential through analysis integrated surface ...

Reservoirs overflow during flood season because of sedimentation cycles, which severely affects their effectiveness. Siltation is a major problem in dams constructed waterways arid and semi-arid areas. Therefore, the reservoirs wadis lose capacity due to sedimentation. This study determines an optimal design trapping basin on steep slope areas for Wadi Bishah Asir region southwestern Saudi Arab...

CO 2 + O in situ leaching has been extensively applied uranium recovery sandstone-type deposits of China. The geochemical processes impact and constrain the reaction solution migration; thus, it is necessary to study –water–rock process its influence on physical properties uranium-bearing reservoirs. In this work, a simulation experiment was carried out, mineralogical multiscale pore characteri...

Waste management is a systematic, thorough, and sustainable activity that includes reducing handling waste. Activities in waste include generation control, collection, transportation, processing, final disposal (Law No. 18 of 2008 concerning Management). The purpose community service to increase the knowledge Chairman Neighboring Pillars about processing household Pematang Sulur Village, Jambi ...

In addition to the pandemic, Covid-19 crisis and war Russia in Ukraine has dealt a devastating blow world economy maritime companies, have suffered most. The development of water transport infrastructure is necessary factor increasing competitiveness ports efficiency sea river transport. addition, technology activities international organizations (such as IMO) lead higher requirements for safet...

The Meghna river estuary has had substantial importance in supporting the coastal community’s livelihood for decades, but pressure on it is immense due to many anthropogenic drivers. present study aimed assess its ecosystem services (ES) according framework of standard international classification (CICES). This also identified drivers, pressure, state, impact, and responses (DPSIR), factors res...

Climate change is a contemporary global threat to the whole world especially in coastal area like Bangladesh. Bangladesh extremely vulnerable climate impacts because of its geographical location. This research an attempt assess on fishersʹ livelihood selected hotspot zone Munshiganj. In study area, average sex ratios male and female were 56.67% 43.33%, respectively their religion ratio Islam 45...

Abstract The article describes zones with a predominant type of melioration depending on the territorial location land being improved. It provides brief classification channels based their structural features, cross-sectional shape, flow capacity, and technical operational characteristics. Channels are main elements meliorative systems. Ensuring quality channel operation required capacity guara...

the artificial recharge of groundwater (arg), where practicable, is an easy and economical method for desertification control in the arid and semi-arid zones where overpumping has critically lowered the watertable. although desiltation of floodwaters, which is a prerequisite for the arg, leads to rehabilitation of the eroded sites that house the sedimentation basins (sbs), the gradual imper...