نتایج جستجو برای: pre sedimentation basins

تعداد نتایج: 340721  

Journal: :Marine Geology 2021

Human interventions and climate change can heavily influence the large-scale morphological development of tidal basins. This has implications on sediment management strategies, as well ecological recreational purposes. Examples impacted basins are those in Western Dutch Wadden Sea. The closure a large sub-basin 1932 triggered shift budgets remaining basins, leading to infilling that is still on...

2002
David M. Mooney

In erosion and sedimentation problems, estimating the range of significant stream flows to include when computing sediment transport can prove challenging in ungauged or under-gauged basins. This paper describes an event-based model incorporating a geomorphologic instantaneous unit hydrograph and stochastic descriptions of peak flows and frequency of storm events from nearby reference watershed...

2003
Alfredo Huete Tomoaki Miura Xiang Gao Carlos Borghi Ricardo Ojeda

Land degradation impacts on several critical environmental issues such as food security, diminishing quality and quantity of fresh water resources, preservation of natural resources, loss of biodiversity, and global climate change. Land degradation is responsible for soil erosion and can eventually lead to desertification. The International Convention to Combat Desertification (CCD) defines des...

2016
Guillaume Bourdel Alice Roy-Bolduc Marc St-Arnaud Mohamed Hijri

Plant-root inhabiting fungi are a universal phenomenon found in all ecosystems where plants are able to grow, even in harsh environments. Interactions between fungi and plant roots can vary widely from mutualism to parasitism depending on many parameters. The role of fungal endophytes in phytoremediation of polluted sites, and characterization of the endophytic diversity and community assemblag...

2010
Hyun-Kyung Kim Hyeng-Il Cheun Byung-Suk Cheun Ki-Yeon Lee Tong-Soo Kim Sang-Eun Lee Won-ja Lee Shin-Hyeong Cho

OBJECTIVES The prevalence of Clonorchis sinensis infection was investigated among residents of the five major river basins, that is, Hangang, Nakdonggang, Seomjingang, Yeongsangang, and Geumgang River basins in Korea. METHODS From January to December 2007, a total of 31,268 stool samples were collected from 29 localities and examined by the formalin-ether sedimentation technique. RESULTS In...

2010
A. C. Bryhn

The Baltic Sea, a large estuarine sea in northern Europe, has for many decades displayed obvious signs of anthropogenic eutrophication. This study relates long-term trends in total phosphorus (TP) loadings and TP concentrations in surface waters regarding five major sub-basins of the Baltic Sea; the Bothnian Bay, the Bothnian Sea, the Baltic Proper, the Gulf of Finland and the Gulf of Riga. The...

Journal: :Anais da Academia Brasileira de Ciencias 2006
Carlos A Sommer Evandro F Lima Lauro V S Nardi Joaquim D Liz Breno L Waichel

The Neoproterozoic shoshonitic and mildly alkaline bimodal volcanism of Southernmost Brazil is represented by rock assemblages associated to sedimentary successions, deposited in strike-slip basins formed at the post-collisional stages of the Brasilian/Pan-African orogenic cycle. The best-preserved volcano sedimentary associations occur in the Camaquã and Campo Alegre Basins, respectively in th...

Journal: :Journal of Hydrology and Hydromechanics 2022

Abstract Authors propose a beneficial methodology for hydrological planning in their study. Prospective evaluations of the basins’ net capacity can be done using technique presented. The HEC-HMS (Hydrologic Modelling System) software used to estimate basin, sediment emitted. For certain precipitation, this allows estimating, within range, gradual blockage reservoir, and even projected date tota...

Journal: :Spanish journal of palaeontology 2022

Maastrichtian argillaceous chalks of the Ghareb Formation are widespread throughout Israel, both in exposures and subsurface. These strata contain a rich fauna foraminifera calcareous nannoplankton, allowing detailed biozonation sediments, which were deposited series basins an outer-shelf to upper-slope environment. The distribution benthonic planktonic from reference section southern Israel is...

2012
S. Navalkissoor P.S.J. Bailey A.M. Quigley M. Hall J.R. Buscombe

OBJECTIVES To assess whether an association exists between drainage to multiple basins and lymphatic metastasis in patients with truncal melanoma. METHODS We retrospectively reviewed 227 patients with primary malignant melanoma between January 2006 and December 2009. All patients received an intradermal injection of (99m)Tc-nanocolloid and lymphoscintigraphy followed by sentinel node biopsy. ...

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