The major aim of the present study was to investigate element (Fe, Ni, Pb, V, Zn) concentrations in sediment and different tissues of Phragmities australis and Typha latifolia in Hor al-Azim Wetland Southwest Iran. Sampling of sediments and aquatic plants was carried out during spring and summer 2014. Results showed that the mean  concentrations of elements in Phragmities ...

Abstract In this article we conduct a pragmatic analysis of the Dutch utterance-final particle hoor (lit. ‘hear’). Apparently, has contradictory uses. It ex-presses politeness (involvement, togetherness), but it can also contribute to face-threatening force an utterance. We argue that there is core meaning all uses share, which by adding , speakers claim proposition at issue be part common grou...

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...

F.1.1 Current Wetland Area and Rates of Loss The ability to estimate soil carbon pools and fluxes in North American wetlands is constrained by the national inventories (or lack thereof) for Canada, the United States, and Mexico (Davidson et al., 1999). The National Wetland Inventory (NWI) program of the United States has repeatedly sampled several thousand wetland sites using aerial photographs...

Forty of us at the Foundation are taking forty days out of our routine over the next few months to participate in the 'Foundation in Education' course that is being facilitated by Rohit Dhankar of Digantar and a team of education thinkers. Recently we completed the first module of ten days at Jaipur and followed it up with the second module in Bangalore. The third module is slated to begin in M...

Every person I have spoken to in the context of the controversy on “reservations” has agreed that as a nation, we must do everything that is required to achieve equality in our society. Not a single sensible person would deny the fact that for too long in our country, grossly unequal, inhuman and unjust treatment has been meted out to people based on socio-economic class and caste. It is a comp...

The number of wetlands existing in the United States since colonial settlement has declined rapidly. According to reports by the U.S. Fish and Wildlife Service (Tiner, 1984; Tiner et al., 1994; Wilen and Frayer, 1990; Dahl 1990; Dahl et al., 1991) and the National Wildlife Federation (Feierabend and Zelazny, 1987), it is believed that over 200 million acres of wetlands were present in the conte...

Inorganic aluminum (Al) concentrations are critical for defining the biological effects of acidification. The landscape's role in controlling the spatial variability of Al and its speciation has received only limited attention. We analyzed the speciation of stream Al at 14 sites within a 68 km2 boreal catchment during spring snowmelt, a period of episodic acidity. Three factors that influenced ...

INTRODUCTION Wetlands are ecologically as well as economically important systems due to their high productivity, their nutrient (re)cycling capacities, and their prominent contribution to global greenhouse gas emissions. Being on the transition between terrestrial and—aquatic ecosystems, wetlands are buffers for terrestrial run off thereby preventing eutrophication of inland as well as coastal ...