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Masters thesis. The influence of changes in discharge and season on the concentration, partitioning, and export of a limiting nutrient, phosphorus, was quantified for two streams in central Alberta from April to October, 1983. Streams studied were Two Creek and Saskwatamau River.
|Statement||by Nancy L. Munn|
|The Physical Object|
|Number of Pages||87|
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Inphosphorus (P) export was quantified for two streams in Alberta, Canada. The influence of changes in discharge on P concentration and partitioning was examined on an annual and seasonal basis and these data were used to develop empirical models to predict P by: Temporal dynamics of P concentration during (a) willow, (b) azalea, (c) cypress, and (4) larch litter decomposition in streams, riparian zones, and forest floors.
Values represent means ±1 SE (n = 3, three sites with three replicates at each site).Cited by: 5. Temporal dynamics of phosphoms in two Alberta streams. thesis Nonpint source-stream nutrient level relationships: a nationwide study Physical and geochemical chmcteristics of.
The loss of phosphorus from the landscape can negatively affect the environment, with water quality being the primary concern.
Within agricultural systems, beneficial management practices are used in the application Temporal dynamics of phosphorus in two Alberta streams book management of phosphorus in order to prevent or minimize losses. The role of fine sediment in phosphorus dynamics and stream productivity in Rocky Mountain headwater streams: Possible long-term effects of logging Author / Creator Hawthorn, Kirk FraserAuthor: Kirk Fraser Hawthorn.
Phosphorus dynamics across intensively monitored subcatchments in the Beaver River Helen M. Baulch School of Environment and Sustainability and Global Institute for Water Security, University of Saskatchewan, 11 Innovation Blvd, Saskatoon, S7N 3H5, SK, Canada Correspondence @ Understanding natural variation in stream phosphorus (P) concentrations over space and time is critical for understanding natural drivers of catchment behavior and establishing regulatory standards.
Across minimally impacted benchmark streams (n = 81) in Florida, spatial variation in mean total P concentrations was large, indicating the. The adsorption of phosphorus to sediment particles plays a key role in phosphorus cycling, especially in streams and rivers impaired by agricultural land use.
Adsorption comprises all physical and chemical processes in which phosphorus is bound to the surface of particles, such as ligand exchange, electrostatic attraction, and ion exchange. Phosphorus (P) transfer during storm events represents a significant part of annual P loads in streams and contributes to eutrophication in downstream water bodies.
To improve understanding of P storm dynamics, automated or semiautomated methods are needed to extract meaningful information from ever‐growing water quality measurement data sets. (). Spatial and temporal variability of stream phosphorus in a New Zealand high‐country agricultural catchment.
New Zealand Journal of. Rivers affected by anthropogenic nutrient inputs can retain some of the phosphorus (P) load through sediment retention and burial.
Determining the influence of land use and management on sediment P concentrations and P retention in fluvial ecosystems is challenging because of different stressors operating at multiple spatial and temporal scales.
Request PDF | Temporal dynamics of phosphorus during aquatic and terrestrial litter decomposition in an alpine forest | Plant litter decomposition in forested soil and watershed is an important. calf operations, two key BMPs are recommended. The first is related to riparian area protection through improved livestock management in these areas (Figure 23), and using off-stream watering systems (Figure 24) that limit the direct access of cattle to streams and lakes.
Off-stream watering systems not only reduce nutrient loading of. Archived Publications. Applied Turfgrass Science (–) Crop Management (–) Forage & Grazinglands (–) Journal of Production Agriculture (–).
Accordingly, a proper monitoring requires high-temporal resoln. sampling during flow events. We report on a comparative study on the P export dynamics from two grassland catchments in Switzerland, where concns.
of dissolved reactive Phosphorus (DRP) have been monitored at a high temporal resoln. for periods of and 5 y, resp. Coherent seasonal patterns in stream phosphorus point to regional drivers Discharge is not the primary driver of total phosphorus dynamics in Prairie streams Stream phosphorus concentrations peak with snowmelt and in mid-summer Coherence with conductivity and temperature suggest drivers vary by season Page 1 of 36 J.
Environ. Qual. This thesis is comprising two studies characterizing nutrient dynamics within the Athabasca Oil Sands region (AOS) of Alberta. The first study simultaneously examined and compared nutrient (nitrogen, N and phosphorus, P) dynamics (extractable pools, net transformation (mineralization) Temporal and Spatial Trends in Phosphorus Dynamics.
Munn, N.L. Temporal dynamics of phosphorus in two Alberta streams. M Prepas EE. Seasonal dynamics of phosphorus partitioning and export in two streams in Alberta, Canada. Can. Fish. Aquat. Sci. Spencer CN. Phosphorus and nitrogen dynamics in streams associated with wildfire: A study of immediate and longterm effects.
A comparative study of microbial dynamics and phosphorus removal for a two side-stream wastewater treatment processes† Yanyan Zhang, ab Md. Shahinoor Islam, ac Kerry N. McPhedran, ad Shimiao Dong, a Ehab M. Rashed, e Maha M. El-Shafei, f Ahmed M. Noureldin f and Mohamed Gamal El-Din * a. The study streams (and to some degree also riffles within streams) differed in both average level and temporal variation of nutrient concentrations, with the near-natural Juuvanjoki having clearly the lowest and least variable concentrations of both phosphorus and nitrogen (Fig.
1a–f, Table 1). Of the two nutrient-enriched streams. Temporal variations between the two years’ data showed land use and other anthropogenic factors’ impacts on P transport in river and deposit in sediments.
Analysis of the river water samples showed that average soluble reactive P (SRP, 67 μg.l-1) in and SRP (68μg.l-1) in both were greater than background P concentration in most.
On modelling the impacts of phosphorus stripping at sewage works on in-stream phosphorus and macrophyte/epiphyte dynamics: a case study for the River Kennet. Science of The Total Environment, DOI: /S(01) D.M Cooper, W.A House, B Reynolds, S Hughes, L May, B Gannon.
1. Urbanisation is an important cause of eutrophication in waters draining urban areas. We determined whether benthic algal biomass in small streams draining urban areas was explained primarily by small‐scale factors (benthic light, substratum type and nutrient concentrations) within a stream, or by catchment‐scale variables that incorporate the interacting multiple impacts of.
Ulén B, Von Brömssen C, Kyllmar K, Djodjic F, Stjernman Forsberg L, Andersson S. Long-term temporal dynamics and trends of particle-bound phosphorus and nitrate in agricultural stream waters.
Acta Agriculturae Scandinavica, Section B—Soil & Plant Science. ; – doi: / Elizabeth M. Hagen, John L. Sabo, Temporal variability in insectivorous bat activity along two desert streams with contrasting patterns of prey availability, Journal of Arid Environments, /nv,(), ().
Headwater streams are an important feature of the landscape, with their diversity in structure and associated ecological function providing a potential natural buffer against downstream nutrient export.
Phytobenthic communities, dominated in many headwaters by diatoms, must respond to physical and chemical p Macronutrient Cycles. Introduction. The roots of almost all species of tropical rainforest trees contain mycorrhizal fungi (Alexander a). Our aim here is to demonstrate that not only are these fungi central to ecosystem processes such as carbon- and nutrient-cycling, but that they also have the potential to influence biotic interactions between species, and so help to shape the structure and composition of.
Phosphorus cycling in a northern hardwood forest: biological and chemical control. Science, Yanai, R. Soil solution phosphorus dynamics in a whole-tree-harvested northern hardwood forest.
Soil Science Society of America Journal, 55(6) Yanai, R. Phosphorus budget of a year-old northern hardwood forest. Spatial and temporal variability of internal and external phosphorus loads in Mona Lake, Michigan Alan Steinman Æ Xuefeng Chu Æ Mary Ogdahl Received: 27 February /Accepted: 9 October Springer Science+Business Media B.V.
Abstract A study was conducted in Mona Lake, a small eutrophic lake located in western Michigan. Abstract Human activities have increased the input of nitrogen and phosphorus into riverine systems.
These inputs can increase algal growth that degrades aquatic ecosystems. We constructed a global. Phosphorus dynamics in selected wetlands and streams of the lake Okeechobee Basin * K.R.
Reddy *, O.A. Diaz, L.J. Scinto, M. Agami Soil and Water Science Department, Newell Hall, BoxUniuersity of Florida, Institute of Food and Agricultural Sciences, Gainesuille, FLUSA Abstract. Sediment-phosphorus dynamics can shift aquatic ecology and cause downstream legacy effects after wildﬁre in large river systems MONICA B.
EMELKO1, MICHEAL STONE 2,ULDISSILINS3, DON ALLIN,ADRIANL. COLLINS4, CHRIS H. WILLIAMS 3,Sand KEVIN D. BLADON5 1Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, ON N2L 3G1.
A complete ecosystem perspective includes consideration of hierarchical spatial scales in a temporal context. Flow of energy in lotic ecosystems is driven by two alternative energy sources: sunlight regulating in-stream photosynthesis and plant litter derived from the stream-side riparian corridor or.
The natural environment encompasses all living and non-living things occurring naturally, meaning in this case not term is most often applied to the Earth or some parts of Earth. This environment encompasses the interaction of all living species, climate, weather and natural resources that affect human survival and economic activity.
The concept of the natural environment can be. The changes in both physical and chemical properties of interstitial water were investigated within a large gravel bar to determine if the parafluvial zone was a hotspot for nutrient transformations in a lowland eutrophic river, the Doubs (Eastern France).
Interstitial water was sampled in 30 piezometers along five transects across the gravel bar, surface water was sampled in main and.
Temporal dynamics of ES relationships reflected responses to social-environmental changes (figures S1–S2) entailed in each scenario (Qiu et al ) that can shape the provision and interactions of ES.
Changes in relationships can be abrupt with high interannual variations (e.g. drainage vs. food production, drainage vs. number of days with. headwater streams located in the Canadian Shield region of south-central Ontario Evapotranspiration in two Natural Boreal Fens, Fort McMurray, Alberta, Canada Cameron Irvine Temporal dynamics of phosphorus export in the Hopewell Creek Watershed, Ontario, Canada.
Phosphorus dynamics in shallow subsurface waters (Alberta, Canada, as part of the TROLS (Terrestrial and Riparian Organisms, Lakes and Streams) interdisciplinary research project. Logging was done in winterand a 23 m wide treed buffer strip was retained along the shore.
The temporal dynamics of these planktonic groups were studied in the coastal waters of the southeastern Mediterranean Sea approximately every two weeks for a total of two years.
Heterotrophic bacteria were abundant mostly during late summer and midwinter, and were positively correlated with bacterial production and with N 2 fixation.
in Alberta have increased as the industry has intensified. A recent water quality assessment (Canada-Alberta Environmentally Sustainable Agreement ) showed that nitrogen (N) and phosphorus (P) often exceeded water quality guidelines for protection of aquatic life in streams in high and moderately intensive agriculture areas.
Lucy L. Burkitt, Warwick J. Dougherty, Ross Corkrey, Shane T. Broad, Modeling the Risk of Phosphorus Runoff Following Single and Split Phosphorus Fertilizer Applications in Two Contrasting Catchments, Journal of Environmental Quality, /jeq, 40, 2, (), ().The first of its sort, this book will be an excellent reference for ecologists and natural resource managers."—Rolf Vinebrooke, Professor of Biology at the University of Alberta "This is the first comprehensive book that tackles, in a definitive manner, what we .Nutrient management in rivers and streams is difficult due to the spatial and temporal variability of algal growth responses.
The objectives of this project were to determine the spatial and seasonal in situ variability of trophic status in the Lake Waco/Bosque River watershed, determine the variability in the lotic ecosystem trophic status index (LETSI) at each site as indicators of the.