نتایج جستجو برای: sediment source fingerprinting

تعداد نتایج: 460757  

2009
K. E. JURACEK A. C. ZIEGLER

The ability to achieve meaningful decreases in sediment loads to reservoirs requires a determination of the relative importance of sediment sources within the contributing basins. In an investigation of sources of fine-grained sediment (clay and silt) within the Perry Lake Basin in northeast Kansas, representative samples of channel-bank sources, surface-soil sources (cropland and grassland), a...

Journal: Desert 2019
H. Ahmady-Birgani J. P. Engelbrecht M. Bazgir

A major question is whether different source regions across the Middle East account for changes in aerosol and dust particle characteristics, which impact Western Iran. Therefore, over a period of sampling from April 2017 to April 2018, dust particles were collected in Western Iran from different cities including Urmia, Sanandaj, Sare-Pole-Zahab, Dehloran and Abadan. The research aim is to comp...

Journal: :Journal of Soils and Sediments 2022

Abstract Purpose Understanding fluxes of soil organic carbon (OC) from the terrestrial to aquatic environments is crucial evaluate their importance within global cycle. Sediment fingerprinting (SF) increasingly used identify land use-specific sources OC, and, while this approach estimates relative contribution different OC load in waterways, high degree spatial heterogeneity many river catchmen...

2004
Hua Lu Christopher Moran Ian Prosser Ronald DeRose

Based on a spatially-distributed sediment budget across the Murray Darling Basin, costs of achieving a range of sediment reduction targets were estimated for a number of locations. Four investment prioritization scenarios were tested to identify the most cost-effective strategy to control suspended sediment loads. The impacts of spatial heterogeneity of sediment transport and varying the spatia...

2007
Takahiro SHIONO Nobuyuki YAMAMOTO Noburo HARAGUCHI Anshun YOSHINAGA

Reddish fine sediment runoff from upland fields has been one of the causes of coastal environmental pollution in Okinawa, Japan. Planting grass strips is a well-known measure to reduce runoff of nonpoint-source pollutants from agricultural fields. In this study, we investigated the performance of a centipede grass (Eremochloa ophiuroides (Munro) Hack.) strip for reducing sediment runoff from an...

Journal: :The Science of the total environment 2017
Di Zhang Jun-Jian Wang Hong-Gang Ni Hui Zeng

Comprehensive studies on polycyclic aromatic hydrocarbons (PAHs) within an urban river are urgently needed to carry out strategies to limit their contamination and dispersal. Here, we analyzed 16 PAH occurrences in water, suspended particulate matter (SPM), and sediment monthly for a year in the Maozhou River mainstream (Shenzhen, South China). Monthly rainfall positively correlated with both t...

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