every year a large number of migratory wintering water birds, rest in the wetlands situated in the northern provinces of iran. the wetlands are very important ecosystems for these creatures. due to ecological importance of water birds, the results of this study (the birds’ populations and their changes) are helpful to monitor them and are especially important to manage the wetlands. in this stu...

Water reclamation and reuse is being actively promoted in Australia. In Queensland, surface-flow constructed wetlands with a diversity of macrophyte types offer the greatest potential for effluent polishing. Constructed wetlands in subtropical climates in coastal regions and arid climates in inland western regions are conducive to high macrophyte growth rates and nutrient removal, in particular...

A country-wide inventory of important wetlands was undertaken in Lithuania in 1996–1999, covering more than 80 wetlands with a total area of about 130 000 ha. Intensive field surveys (land-based, aerialand boat-surveys) were performed at all sites. The Ramsar Information Sheet and data recording methodology was used as the basis for the structure of the inventory. Results of the field surveys r...

Plant taxa identified in 90 U.S. Great Lakes coastal emergent wetlands were evaluated as indicators of physical environment. Canonical correspondence analysis using the 40 most common taxa showed that water depth and tussock height explained the greatest amount of species-environment interaction among ten environmental factors measured as continuous variables (water depth, tussock height, latit...

Constructed wetland technology has been widely applied around the world to treat domestic wastewaters from the single family home to small communities. Constructed wetlands can be classified as either surface flow wetlands (similar to natural wetlands) or subsurface flow wetlands, where the wastewater flows through a media. Subsurface flow constructed wetlands can either be horizontal flow syst...

Sodium accumulating playas (also termed sodic or natric playas) are typically covered by polygonal crusts with different pattern characteristics, but little is known about the short-term (hours) dynamics of these patterns or how pore water may respond to or drive changing salt crust patterning and surface roughness. It is important to understand these interactions because playa-crust surface po...

Miocene continental saltpans are scattered in the Central Valley of the Atacama Desert, one of the driest regions on Earth. These evaporitic deposits are hydrologically inactive, and are detached from groundwater brines or aquifers. The surface of the saltpans, also known as salars, comprises desiccation polygons, commonly with nodular salt structures along their sides. The morphology and bulk ...

functioning in a restored wetland when compared with its natural counterpart. We used the denitrification enWetland restoration projects are frequently evaluated by their hyzyme activity (DEA) assay, a measure of the potential of drologic roles and vegetation characteristics, but their success in rea microbial population to produce the nitrate reductase storing biogeochemical processes, such as...

PURPOSE: The following report provides a preliminary review of the recent scientific literature pertaining to the ecology and management of irrigation induced and enhanced wetlands. The report is designed to provide insight into the complexity of identifying irrigated wetlands for jurisdictional purposes, outline the current state-of-the-science regarding irrigated wetlands, and provide basic g...