introduction hoor-al-azim wetland is one of the most important wildlife refuges and marine ecosystems in the south-west of iran where structure and function has been significantly affected by different changes during the 2 recent decades. changes in water regime of hoor-al-azim wetland and human activities are some of the most important factors. changes in water regime and anthropogenic activit...

An assessment of wetland nature reserves and the protection of China’s vertebrate diversity.— We assessed 148 wetland nature reserves in China and the distribution of the four taxa of endemic and threatened terrestrial vertebrates, reptiles, amphibians, birds and mammals. Assessment of the wetland nature reserves was combined with the governmental list of the endemic and threatened vertebrates ...

A horizontal subsurface flow constructed wetland was investigated after eight years of residential wastewater discharge (150 person equivalents). Twenty core samples distributed over the entire wetland were taken from the soil matrix. The distribution pattern of phosphorus (P) accumulation in the substrate of the wetland was determined using kriging technique and P sorption was related to the c...

Historically isolated wetland ecosystems may provide a phosphorus (P) storage sink for runoff from agricultural pastures. Four historically isolated wetlands were characterized on two cow-calf ranches in the Lake Okeechobee Basin, Florida, to (i) quantify P storage in ecosystem compartments (plant biomass, litter, and soil) of historically isolated wetlands and surrounding improved pasture upla...

Velocity heterogeneity is often present in wetland systems and results in some influent water remaining in the wetland for less than the expected residence time. This phenomenon, known as short-circuiting, alters the distribution of the chemical and biological transformations that occur within the wetland and decreases performance in constructed treatment wetlands. In this thesis, field observa...

background: the most important factors and problems threatening the anzali wetland are the contaminant load and sediments entering the wetland, as well as lack of an integrated management plan for this wetland. the main objectives of the current research were to explore whether there are significant differences in concentrations of zn, cd, and pb in surface sediments among different sites (base...

Catfish of Anzali wetland has been focused economically and commercially. It also meets the religious Minorities needs to fish meat. So, investigation of its health in the wetland is important. This study aimed to investigate the concentration of heavy metals such as cadmium, Nickle, Zinc and lead in muscle tissues of Catfish in three stations (west, central and east) of Anzali wetland in 2012....

Natural wetlands, occupying 3.8% of China's land and providing 54.9% of ecosystem services, are unevenly distributed among eight wetland regions. Natural wetlands in China suffered great loss and degradation (e.g., 23.0% freshwater swamps, 51.2% costal wetlands) because of the wetland reclamation during China's long history of civilization, and the population pressure and the misguided policies...

Plants that accumulate a small percentage of metals in constructed treatment wetlands can contribute to remediation of acidic, metal contaminated runoff waters from coal mines or processing areas. We examined root and shoot concentrations of elements in four perennial wetland species over two seasons in mesocosm wetland systems designed to remediate water from a coal pile runoff basin. Deep wet...

The aim of this paper is to recommend a rapid classification system for sustainable flood retention basins (SFRBs) to control runoff in a temperate climate. The system should improve communication among engineers and scientists, and was developed with a general database (approximately 660 basins) and a very detailed database (56 basins), using the River Rhine catchment in the South of Baden (Ge...