نتایج جستجو برای: aquatic and marsh plants

تعداد نتایج: 16861837  

Journal: Pollution 2020

The aim of this study was to compare the selected aquatic plants ability to remove nitrate from wastewater. Excess of these nutrients in water can directly affect human health (methemoglobinaemia) or indirectly through the products of secondary pollution include eutrophication. Negative impact of nutrients excess in surface water often causes the destruction of water ecosystems, and therefore, ...

The aim of this study was to compare the selected aquatic plants ability to remove nitrate from wastewater. Excess of these nutrients in water can directly affect human health (methemoglobinaemia) or indirectly through the products of secondary pollution include eutrophication. Negative impact of nutrients excess in surface water often causes the destruction of water ecosystems, and therefore, ...

2017
Joseph E. Morris Richard D. Clayton

Aquatic plants are an important component of well functioning lake ecosystems. Plant abundance is influenced by sediments, nutrients and water clarity. Given the dominance of agriculture in Iowa, nutrients and soil lost from “leaky” watersheds combine to create ideal habitat for growth of aquatic plants in lakes and ponds and hasten eutrophication. Under these conditions, plant growth can becom...

2017
E. Bruce NEIL P. BERNSTEIN

During summer 1976, a study of habitat selection by the red-winged blackbird, Agelaius phoeniceus, was conducted. Mentor Marsh near Mentor, Ohio was chosen because of its unique geologic and botanical history. A swamp forest prior to 1959, the area is now a marsh composed of Typha latifolia, T. angustifolia, and Phragmites australis. Preferences of A. phoeniceus for each of these plants were in...

Journal: :South African Journal of Botany 2004

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Katherine M Ratliff Anna E Braswell Marco Marani

The elevation and extent of coastal marshes are dictated by the interplay between the rate of relative sea-level rise (RRSLR), surface accretion by inorganic sediment deposition, and organic soil production by plants. These accretion processes respond to changes in local and global forcings, such as sediment delivery to the coast, nutrient concentrations, and atmospheric CO2, but their relative...

2017
Yehui Zhang Na Yang Jiawei Xu Yixing Yin

Based on long-term rainfall measurements (1956-2012), water level records (1956-2006), and aquatic plants field survey data (1960-2014), the relationship between precipitation and aquatic vegetation succession in east Taihu Lake, China, is studied. Neither abrupt changes nor any trends were found in the annual rainfall series in Taihu Lake during the studied period (1956-2012). However, for sea...

Journal: :The Yale Journal of Biology and Medicine 1961
Solomon Goldstein

This volume is a revised, greatly expanded, and thoroughly admirable successor to a first edition (1943) which has been of inestimable value in facilitating the labors and stimulating research among those concerned with various aspects of aquatic microbiology. The present authoritative work is a welcome and imposing addition to biological literature by an investigator internationally renowned f...

Journal: :Chemosphere 2008
M Válega A I Lillebø M E Pereira A C Duarte M A Pardal

During four decades, the Ria de Aveiro was subjected to the loading of mercury from a chlor-alkali industry, resulting in the deposition of several tons of mercury in the sediments. The present study evaluates the impact of this disturbance and the recovery processes, temporally and spatially, by means of examining the richness of the species of salt marsh plants and mercury concentrations in s...

Journal: :اکو هیدرولوژی 0
لاله رومیانی گروه شیلات، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران رضا جلیل زاده ینگجه گروه مهندسی محیط زیست، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران

in order to evaluate the phragmites australis, myriophyllum spicatum and potamogeton perfoliatus aquatic plant species as an indicator organism of heavy metals pollution in bio-monitoring studies of the aquatic ecosystems, the aim of this study was to determine the levels of heavy metals accumulation zn, cu, pb and cd in sediments, roots, stems and leaves of these plants in north and south of t...

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