The alluvial plain of the Ceyhan River (SE Turkey) has been populated since the Neolithic. In 1954, Marjory Veronica Seton-Williams described for this area several archeological mounds (höyük), which are the remains of ancient settlements. Today, according to the archeological research carried out in the area, some of these mounds result to have been leveled by agricultural activities. In this ...

River deltas belong to the most densely settled places on earth. Although they only account for 5% of the global land surface, over 550 million people live in deltas. These preferred livelihood locations, which feature flat terrain, fertile alluvial soils, access to fluvial and marine resources, a rich wetland biodiversity and other advantages are, however, threatened by numerous internal and e...

Abstract. The world's large rivers are facing reduced sediment loads due to anthropogenic activities such as hydropower development and extraction. Globally, estimates of sand extraction from river systems lacking, in part the pervasive distributed nature processes. For Mekong River, widely assumed estimate basin-wide is 50 Mt per year. This figure based on 2013 likely be outdated. Here, we dem...

Ahsrruct: Hydroperiod is considered the primary determinant of plant species distribution in temperate floodplain forests, but most studies have focused on alluvial (sediment-laden) river systems. Few studies have evaluated plant community relationships in blackwater river systems of the South Atlantic Coastal Plain of North America. In this study. we characterized the soils. hydroperiod, and v...

Large alluvial deltas of the Mekong River in southern Vietnam and Cambodia and the Red River in northern Vietnam have groundwaters that are exploited for drinking water by private tube-wells, which are of increasing demand since the mid-1990s. This paper presents an overview of groundwater arsenic pollution in the Mekong delta: arsenic concentrations ranged from 1-1610 microg/L in Cambodia (ave...

Alluvial fans are an important land resource with agricultural potential in Qinghai–Tibet Plateau. The spatiotemporal variation use/cover is indicator to understand the value of alluvial and protect make scientific use such fans. In this study, characteristics determined by analysing changes Lhasa River Basin (LRB) at different times, counties/districts, altitudes, gradients. Results show that ...

Abstract Groundwater-flow models require the spatial distribution of hydraulic conductivity parameter. One approach to defining this in groundwater-flow model grids is map electrical resistivity by airborne electromagnetic (AEM) survey and establish a petrophysical relation between mean calculated as nonlinear function layering thicknesses layers aquifer transmissivity compiled from historical ...

abstract alluvial fans are the most striking phenomena o fluvial geomorphology . these forms are found in frount of mountains and pediments of arid and semiarid zones . alluvial fans are affected by climate changes and tectonics . occurring of tectonic events lead to reaction of alluvial fans . some of these reactions appear on dissection of alluvial fans and displacement of depocenters on allu...