River valleys are considered natural corridors for migration of plant species; however, there is a lack studies confirming higher colonisation rates species in these areas. We compare richness between ancient and recent forests (developed during after the nineteenth century) those located river valley with outside valley. hypothesise that, close to river, will be associated forests, thus indica...

The Hohokam, an irrigation-based society in the American South West, used the river valleys of the Salt and Gila Rivers between 500 and 1500 AD to grow their crops. Such irrigated crops are linking human agency, water sources and the general natural environment. In order to grow crops, water available through rain and river flows needs to be diverted to land where the plants are grown. With a f...

Abstract This study focuses on mechanisms of shelf valley bathymetry affecting the spread riverine freshwater in nearshore region. In context Changjiang River, a numerical model is used with different no-tide idealized configurations to simulate development unforced river plumes over sloping bottom, and without off estuary mouth. All simulated are surface-trapped continuously growing bulges nea...

When inundated by floodwaters, river floodplains provide critical habitat for many species of fish and wildlife, but many river valleys have been extensively leveed and floodplain wetlands drained for flood control and agriculture. In the Central Valley of California, USA, where less than 5% of floodplain wetland habitats remain, a critical conservation question is how can farmland occupying th...

man-made reservoirs constructed on running waters, where a decrease in flow velocity and anincrease in flocculent settling occurs, create perfect conditions for the deposition of allohtonic matter andadsorbed pollutants, such as toxic polychlorinated dibenzo-p-dioxins (pcdds) and polychlorinateddibenzofurans (pcdfs). the results obtained from the research on a cascade of five small reservoirs l...

Remote sensing and field evidence are used to describe sand deposits found in associated pathways of emplacement in the eastern Mojave Desert. Two separate pathways are identified here: one extending eastward from the Bristol Playa through the Cadiz and Danby Playas and Rice Valley to the Colorado River, and a second parallel path extending eastward from Dale Playa through the Palen and Ford Pl...

A recent suggestion of the existence an enormous ancient waterbody in Central China had been associated with intensifying water management that led to rise early states. However, evolution regional alluvial landscapes remains unclear. Through intensive geoarchaeological surveys and careful field examination typical sedimentary sequences, we reconstructed Late Pleistocene-Holocene northeastern S...