Results 11 to 20 of about 517,075 (314)

Quantifying nutrient and sediment erosion at riverbank cattle access points using fine-scale geo-spatial data

Ecological Indicators, 2023
Unrestricted cattle access to the riparian zone can exacerbate riverbank erosion in grazed grassland catchments. Knowledge gaps include the magnitude of erosion and other environmental pressures at cattle access points.
Alison Scott, Rachel Cassidy, Joerg Arnscheidt, David Rogers, Phil Jordan   +4 more
doaj   +1 more source

Geochemistry of reduced inorganic sulfur, reactive iron, and organic carbon in fluvial and marine surface sediment in the Laizhou Bay region, China [PDF]

, 2015
Understanding the geochemical cycling of sulfur in sediments is important because it can have implications for both modern environments (e.g., deterioration of water quality) and interpretation of the ancient past (e.g., sediment C/S ratios can be used ...
Bottrell, S, Mortimer, R, Sheng, Y, Shi, W, Sun, Q   +4 more
core   +2 more sources

Trends Analysis of Simultaneously Extracted Metal Copper Sediment Concentrations from a California Agricultural Waterbody including Historical Comparisons with Other Agricultural Waterbodies

Agriculture, 2022
The objectives of this study were to: (1) assess annual, seasonal and spatial trends in simultaneously extracted metal copper (SEM copper) sediment concentrations in an agricultural California waterbody (Cache Slough) sampled over three years and two ...
Lenwood W. Hall, Ronald D. Anderson
doaj   +1 more source

Chlor-alkali industrial contamination and riverine transport of mercury: Distribution and partitioning of mercury between water, suspended matter, and bottom sediment of the Thur River, France [PDF]

, 2006
Total dissolved and total particulate Hg mass balances were estimated during one hydrological period (July 2001–June 2002) in the Thur River basin, which is heavily polluted by chlor-alkali industrial activity.
Hissler, Christophe, Probst, Jean-Luc
core   +3 more sources

Uptake and release of phosphate by littoral sediment of a freshwater lake under the influence of light or mechanical perturbation

Journal of Limnology, 2010
The littoral sediment of Lake Constance, Germany, is influenced by varying light conditions and mechanical perturbation. This study documents the effects of these changes on phosphate exchange between sediment and lake water.
Bernhard SCHINK, Katja BOOS, Simone GERHARDT   +2 more
doaj   +1 more source

The effects of minimal tillage, contour cultivation and in-field vegetative barriers on soil erosion and phosphorus loss. [PDF]

, 2009
Runoff, sediment, total phosphorus and total dissolved phosphorus losses in overland flow were measured for two years on unbounded plots cropped with wheat and oats.
Bailey, A. P., Deasy, Clare, Jackson, D. R., Quinton, John N., Silgram, M., Stevens, Carly J.   +5 more
core   +2 more sources

A negative correlation between mercury content in muscle and body weight in carp from uncontaminated ponds

Czech Journal of Food Sciences, 2015
The relationship between body weight and total mercury content in the muscle of common carp (Cyprinus carpio) from 13 uncontaminated ponds in South and West Bohemia was investigated. In total, 215 three-years-old marketable carps and 26 samples of bottom
Lenka Sedláčková, Jiří Jarkovský, Jiří Kalina, Gorzyslaw Poleszczuk, Zdeňka Svobodová   +4 more
doaj   +1 more source

Lateral Marsh Edge Erosion as a Source of Sediments for Vertical Marsh Accretion [PDF]

, 2018
With sea level rise accelerating and sediment inputs to the coast declining worldwide, there is concern that tidal wetlands will drown. To better understand this concern, sources of sediment contributing to marsh elevation gain were computed for Plum ...
Barbier, Bauer, Blum, Blum, Cahoon, Cavatorta, Claessens, Cook, Costanza, Day, Day, Dhillon, Donnelly, Donnelly, Engelhart, Eyre, Fagherazzi, Fagherazzi, Foley, Forbrich, French, Ganju, Ganju, Geyer, Gittman, Gosselink, Hayden, Hein, Hobbs, Hopkinson, Hughes, Kirwan, Kirwan, Kirwan, Koch, Lane, Leonardi, Leonardi, Leonardi, Levin, Magirl, Marcus, Mariotti, Mariotti, Mariotti, Mattheus, McGeehin, McKee, Meade, Meade, Megonigal, Millette, Milliman, Mineau, Morris, Morris, Morris, Morris, Morris, Mudd, Pasternack, Pavich, Priestas, Rahmstorf, Raymond, Redfield, Redfield, Redfield, Reed, Rovere, Schmidt, Schwimmer, Sholkovitz, Stuiver, Swales, Syvitski, Townsend, Trimble, Vallino, Vallino, Walsh, Warrick, Warrick, Watson, Weston, Wilson, Wollheim, Wollheim, Worm, Yarbro, Zhao   +90 more
core   +3 more sources

Community Assembly and Co-Occurrence Patterns of Microeukaryotes in Thermokarst Lakes of the Yellow River Source Area

Microorganisms, 2022
Thermokarst lakes are important aquatic ecosystems in cold regions, experiencing several changes due to global warming. However, the fundamental assembly mechanisms of microeukaryotic communities in thermokarst lakes are unknown.
Ze Ren, Kang Ma, Xuan Jia, Qing Wang, Cheng Zhang, Xia Li   +5 more
doaj   +1 more source

Quantifying stream phosphorus dynamics and total suspended sediment export in forested watersheds in Vermont [PDF]

, 2018
Globally the quantity of reactive phosphorus (P) in soils, streams and groundwater has greatly increased throughout the 20th and early 21st centuries. This phenomenon is problematic in Vermont, evidenced by the repeated cyanobacteria blooms in shallow ...
Ross, Donald, Ryan, Sophia C, Wemple, Beverley   +2 more
core   +2 more sources