Dissipation of six acid herbicides in water and sediment of two Canadian prairie wetlands

2011 ◽  
Vol 30 (9) ◽  
pp. 1982-1989 ◽  
Author(s):  
Dani Degenhardt ◽  
Allan J. Cessna ◽  
Renata Raina ◽  
Annemieke Farenhorst ◽  
Dan J. Pennock
Keyword(s):  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Water And Sediment ◽  
Acid Herbicides

Dissipation of glyphosate and aminomethylphosphonic acid in water and sediment of two Canadian prairie wetlands

2012 ◽  
Vol 47 (7) ◽  
pp. 631-639 ◽  
Author(s):  
Dani Degenhardt ◽  
David Humphries ◽  
Allan J. Cessna ◽  
Paul Messing ◽  
Pascal H. Badiou ◽  
...  
Keyword(s):  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Water And Sediment ◽  
Aminomethylphosphonic Acid

Mobility of Dicamba, Picloram and 2,4-D in Soil Columns

Weed Science ◽  
1977 ◽  
Vol 25 (2) ◽  
pp. 159-162 ◽  
Author(s):  
R. Grover
Keyword(s):  
Sandy Loam ◽  
Organic Matter Content ◽  
Clay Content ◽  
Distribution Coefficients ◽  
Matter Content ◽  
Soil Columns ◽  
Canadian Prairie ◽  
General Order ◽  
Soil Clay Content ◽  
Acid Herbicides

The movement of dicamba (3,6-dichloro-o-anisic acid), picloram (4-amino-3,5,6-trichloropicolinic acid), and 2,4-D [(2,4-dichlorophenoxy)acetic acid] was studied in five Canadian prairie soils using soil columns. The three acid herbicides showed the following general order of decreasing mobility in the five soils: Asquith sandy loam > Indian Head loam > Regina heavy clay > Weyburn Oxbow loam > Melfort loam, thus indicating an inverse relationship between adsorption and mobility. In general, the distribution coefficients (kd) were comparable to the corresponding Freundlich constants (k) and these were significantly related to the soil organic matter content, to a lesser extent to soil pH, and not correlated with soil clay content. The maximum concentrations of all three herbicides in the column effluents were well below their respective water solubilities and were inversely related to the distribution coefficients. The calculated values for the amounts of precipitation required to leach the three herbicides to a depth of 10 cm showed the following order of mobility: dicamba > picloram > 2,4-D.

Relationships between abundances of breeding ducks and attributes of Canadian prairie wetlands

2017 ◽  
Vol 41 (3) ◽  
pp. 416-423
Author(s):  
Blake Bartzen ◽  
Kevin W. Dufour ◽  
Mark T. Bidwell ◽  
Michael D. Watmough ◽  
Robert G. Clark
Keyword(s):  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Breeding Ducks

Snowmelt transport of neonicotinoid insecticides to Canadian Prairie wetlands

2016 ◽  
Vol 215 ◽  
pp. 76-84 ◽  
Author(s):  
Anson R. Main ◽  
Nicole L. Michel ◽  
Michael C. Cavallaro ◽  
John V. Headley ◽  
Kerry M. Peru ◽  
...  
Keyword(s):  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Neonicotinoid Insecticides

Quality of deferred forage from waterfowl nesting sites on the Canadian prairies

1999 ◽  
Vol 79 (4) ◽  
pp. 485-490 ◽  
Author(s):  
Paul G. Jefferson ◽  
Les Wetter ◽  
Brent Wark
Keyword(s):  
Plant Species ◽  
Native Species ◽  
Forage Quality ◽  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Canadian Prairies ◽  
Medium Quality ◽  
Cutting Height

The nesting success of waterfowl can be increased by deferred use of perennial forage plant species adjacent to Canadian prairie wetlands for habitat cover. However, the maintenance of plant species diversity and biomass production requires periodic vegetation management such as biomass harvesting. The objective of this study was to determine the quality of forage harvested from these sites as affected by deferral period (years), cutting height, species type (tame vs. native) and province. Biomass was sampled at 16, 12 and 12 sites in Manitoba, Saskatchewan, and Alberta, respectively, representing a range from 2 to 4 yr of deferred use. Plant species were described and samples were clipped at 10 and 20 cm cutting height at 8 or 16 transect points per site in late July or early August 1994. Forage quality was determined as crude protein (CP), in vitro organic matter digestibility (IVOMD), acid detergent fibre (ADF), neutral detergent fibre (NDF), P and Ca content. Deferral period affected quality, but the response varied by province. For example, IVOMD was 90 g kg−1 higher at sites with longer deferred use in Saskatchewan, but was similar for Alberta and Manitoba sites. Harvesting at 20 cm height resulted in 24 g kg−1 greater IVOMD and 9 g kg−1 increased CP averaged across all three provinces. Forage from tame species sites exhibited 70 g kg−1 higher IVOMD, 49 g kg−1 greater CP, 0.3 g kg−1 more P and 4.6 g kg−1 more Ca content than that of native species sites in Alberta but there was no difference between vegetation types at sites in the other provinces. These forage sources will produce medium quality hay for beef cattle production. Deferring native species sites for 2 yr will produce highest biomass yields with the highest cellulosic content for potential bioethanol conversion. Key words: Conservation, biomass, forage quality, NDF, ADF, protein, cellulose, hemicellulose, P, Ca

Odonates as biological indicators of grazing effects on Canadian prairie wetlands

2005 ◽  
Vol 30 (3) ◽  
pp. 273-283 ◽  
Author(s):  
A. Lee Foote ◽  
Christine L. Rice Hornung
Keyword(s):  
Biological Indicators ◽  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Grazing Effects

Performance of Sumur Gendong (SeDrainPond) Technology on Harvesting Water and Sediment with Respect to Effective Rainy Days

2019 ◽  
Vol 10 (1) ◽  
pp. 41 ◽  
Author(s):  
Ignatius Sriyana ◽  
Imam Wahyudi ◽  
Rick Heikoop ◽  
Kusmiyati Florentina ◽  
Haryono Putro
Keyword(s):  
Water And Sediment ◽  
Rainy Days

Measuring water and sediment discharge from a road plot with a settling basin and tipping bucket

2013 ◽  
Author(s):  
Thomas A. Black ◽  
Charles H. Luce
Keyword(s):  
Sediment Discharge ◽  
Settling Basin ◽  
Water And Sediment

Selected Water- and Sediment-Quality, Aquatic Biology, and Mine-Waste Data from the Ely Copper Mine Superfund Site, Vershire, VT, 1998-2007

Data Series ◽  
10.3133/ds378 ◽  
2008 ◽  
Author(s):  
Denise M. Argue ◽  
Richard G. Kiah ◽  
Nadine M. Piatak ◽  
Robert R. Seal ◽  
Jane M. Hammarstrom ◽  
...  
Keyword(s):  
Mine Waste ◽  
Sediment Quality ◽  
Superfund Site ◽  
Copper Mine ◽  
Water And Sediment ◽  
Water And Sediment Quality
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