Download or read book Evaluation of Aquatic Vegetation Management Techniques in Stormwater Retention Basins written by David A. Wardrop and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Aquatic Vegetation Management Techniques in Stormwater Retention Basins written by and published by . This book was released on 1912 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The City of Winnipeg Water and Waste Department presently operates and maintains 70 Stormwater Retention Basins (SRB's) within its boundaries. Limitations on the number of harvestable basins exist due to time, availability of equipment, site conditions at some stormwater retention basins, and budget. These problems, in addition to the rapid proliferation of weed and algae concentrations observed subsequent to harvesting, resulted in questions with respect to the impact mechanical harvesting has upon chlorophyll a concentrations in SRB's. Water quality analysis indicated that subsequent to harvesting activities, no reduction in chlorophyll a concentration was observed in any of the test basins, despite the removal of aquatic vegetation during harvesting. Plausible explanations for the increase in chlorophyll a following harvesting were discussed and investigated. Historically, harvesting activities had been supported with the application of copper sulphate and simazine based sterilents until the recent ban of these products from SRB application necessitated research into alternatives. Review of alternative emerging weed and algae control methods indicated that the most promising methods available to supplement o replace the aquatic weed harvesting program included sterilized grass carp and the use of the commercially available herbicides Reglone A and Karmex DF. Investigation into the effectiveness of the herbicides Karmex DF and Reglone A indicated that both provided promise as competitive means for weed and algae control, and either could prove to be an important supplement to, or a replacement for, conventional harvesting practices. (Abstract shortened by UMI.).
Download or read book Evaluation of Aquatic Vegetation Management Techniques in Stormwater Retention Basins written by David A. Wardrop and published by . This book was released on 1999 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Quantitative and Qualitative Assessment of Stormwater Retention Basisns Relationships in Nature and Response to Three Aquatic Weed Control Methods written by Sarah Catherine Wakelin and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An intensive water quality study was carried out for 5 months during the summer of 1998 on 58 stormwater retention basins (SRBs) in the City of Winnipeg. The basins' primary function is to serve as land drainage storage reservoirs within the city; however, developers advertise them as pristine 'lakes' to residents in sub-developments. Due to the nature of the ponds, they quickly become choked with vegetation, which disenchants many property owners. Since a large-scale study had not been completed in the past it was desirable to compose a large database of water quality values with which to make comparisons between the SRBs' overall characteristics. The City of Winnipeg has implemented a series of control measures in order to help alleviate customer dissatisfaction by removing vegetation using the herbicides Karmex-DF and Reglone-A, as well as a mechanical weed harvester. An assessment as to the best method of control was also desired. In order to gauge the water quality pertaining to these objectives, waterquality was assessed on 10 occasions, bi-weekly, from May to September 1998. (Abstract shortened by UMI.).
Download or read book A Quantitative and Qualitative Assessment of Stormwater Retention Basisns Relationships in Nature and Response to Three Aquatic Weed Control Methods written by and published by . This book was released on 1904 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An intensive water quality study was carried out for 5 months during the summer of 1998 on 58 stormwater retention basins (SRBs) in the City of Winnipeg. The basins' primary function is to serve as land drainage storage reservoirs within the city; however, developers advertise them as pristine 'lakes' to residents in sub-developments. Due to the nature of the ponds, they quickly become choked with vegetation, which disenchants many property owners. Since a large-scale study had not been completed in the past it was desirable to compose a large database of water quality values with which to make comparisons between the SRBs' overall characteristics. The City of Winnipeg has implemented a series of control measures in order to help alleviate customer dissatisfaction by removing vegetation using the herbicides Karmex-DF and Reglone-A, as well as a mechanical weed harvester. An assessment as to the best method of control was also desired. In order to gauge the water quality pertaining to these objectives, waterquality was assessed on 10 occasions, bi-weekly, from May to September 1998. (Abstract shortened by UMI.).
Download or read book Review of Best Management Practices for Aquatic Vegetation Control in Stormwater Ponds Wetlands and Lakes written by De Winton, M. D. and published by . This book was released on 2013 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Vegetation Monitoring and Assessment Protocol Manual written by John Douglas Madsen and published by . This book was released on 1992 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Quantitative and Qualitative Assessment of Stormwater Retention Basins written by Sarah Catherine Wakelin and published by . This book was released on 1999 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Guide for Best Management Practice BMP Selection in Urban Developed Areas written by Task Committee for Evaluating Best Management Practices and published by ASCE Publications. This book was released on 2001-01-01 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide examines permanent structural techniques, or Best Management Practices (BMPs), which can be used for retrofitting the stormwater management systems in existing developed areas. The advantages and disadvantages of each technique are explained to help engineering professionals select the BMP (or series of BMPs) best suited for removing pollutants from stormwater runoff at a particular location. The design factors considered include land availability, type of pollutant to be removed, groundwater levels, soil types, BMP costs, maintenance costs, and desired pollutant removal efficiency. The BMPs evaluated are ponds, alum treatment systems, constructed wetlands, sand filters, baffle boxes, inlet devices, vegetated swales, buffer strips, and infiltration/exfiltration trenches. A BMP Selection Guide, in an easy-to-use matrix format, aids in the decision-making process for BMP selections. Five design factors and five pollutant types (total suspended solids, total phosphorus, total nitrogen, heavy metals, and floating trash) are evaluated for each BMP in the matrix. BMPs presented in this guide were chosen based upon common availability, ease of maintenance, and an established track record.
Download or read book Stormwater Retention Basins written by J.-M. Bergue and published by CRC Press. This book was released on 2000-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This translation of "Guide technique des bassins de retenue d'eaux pluviales", Paris 1994, provides information about planning, construction, maintenance and management, and costs of stormwater retention basins.
Download or read book Effects of Vegetation Management Strategies on the Establishment of Submersed Aquatic Vegetation in Cell 5B of Stormwater Treatment Area 1 West STA 1W written by Hongjun Chen and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This monitoring study was conducted in STA-1W Cell 5B to evaluate effects of four vegetation management strategies on the reestablishment of submersed aquatic vegetation (SAV) at different sites with rice (Oryza sativa), sprangletop grass (Leptochloa fascicularis), barnyard grass (Echinochloa sp.), or miscellaneous plant species dominated. These vegetation management strategies include (A) grass detritus left undisturbed, (B) grass detritus removed to allow reestablishment of SAV from the sediment seedbank, (C) grass detritus left undisturbed and healthy SAV transplanted directly on top of the detritus, and (D) grass detritus removed and healthy SAV transplanted directly into the empty water column. The study was conducted from November 2006 to December 2007. It should be noted that during this time period the STAs, including this cell, suffered from a two-year drought period. This could have affected the outcome of this experiment. Primary findings from this study are: 1) Hydrilla (Hydrilla verticillata) and Coontail (Ceratophyllum demersum) showed increased coverage from April to December in 2007. In contrast, Chara (Chara spp.) coverage did not significantly change during the period of the study. 2) Vegetation management strategies significantly affected Coontail areal coverage in stations with different vegetation types. Coontail coverage in harvested stations was higher that in stations with transplanting SAV alone. 3) Vegetation management strategies did not influence Naiad (Najas guadalupensis) or Hydrilla coverage but significantly affected Chara coverage. The combination of harvesting and transplanting SAV improved Chara establishment. 4) Rice-dominated stations generally had higher Coontail coverage than sprangletop and barnyard grass-dominated stations.
Download or read book Vegetation and Watershed Management written by Edward A. Colman and published by . This book was released on 1953 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Pest Management written by David Pimentel, Ph.D. and published by CRC Press. This book was released on 2002-05-09 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt: PRINT/ONLINE PRICING OPTIONS AVAILABLE UPON REQUEST AT a href="http://www.tandfonline.com/action/bookPricing?doi=10.1081%2FE-EPM " target="_blank"Taylor & Francis Online
Download or read book Evaluation of Highway Runoff Pollution Control Devices written by and published by . This book was released on 1996 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Evaluation of Hydrological and Pollutant Retention Performance of Green Stormwater Infrastructures written by Bishwodeep Adhikari and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Green stormwater infrastructure (GSI) plays a crucial role in improving hydrology and water quality by effectively managing stormwater runoff and reducing pollutant loads. This dissertation is focused on evaluating the performance of GSI in controlling hydrology and water quality function through various field studies. The dissertation comprised three chapters, each addressing specific objectives to provide valuable insights into the performance and effectiveness of GSI systems. The first objective was to examine the hydrological performance metrics of a lined bioretention basin, including stormwater runoff volume reductions, peak flow reductions, and delay time in peak flows. The findings emphasized the importance of considering rainfall event characteristics when evaluating bioretention basin performance. During the one-year monitoring period, the basin demonstrated the ability to capture all inflow from 63% of the rainfall events. Notably, substantial variations in runoff reduction performance were observed between larger and smaller rainfall events. This highlights the need to account for the characteristics of rainfall events to optimize the performance of bioretention basins. Moreover, runoff reductions far exceeded potential evapotranspiration, pointing to additional losses from exfiltration; this implies that the liner of the basin must have some leakage. This emphasizes the challenges associated with maintaining liner integrity in lined basins and calls for further investigation and maintenance practices to ensure the intended performance of such systems and understanding of when liner integrity is vital. The second objective was to investigate the accumulation of metals and base cations in GSI basins through an alternative approach of focusing on accumulation in the basin soils. Metals accumulation was found to be highest near the basin inlets, indicating effective accumulation. The study acknowledged that age alone may not sufficiently explain the observed relationships, emphasizing the importance of considering other factors such as organic matter content, loading rates of metals, and vegetation types. The study highlighted the need for further exploration of metals patterns under de-icing road salt applications, and suggested for consideration of different salt loading rates and vegetation types in future research. The third objective was to compare the metals and nutrient removal efficiencies of two bioinfiltration basins with different deicing road salt loadings. The study revealed the immediate and prolonged impact of salt loading on soil salinity levels in the basins. Salt application affected the removal efficiency of metals and nutrients, with notable variations in copper and zinc removal and declines in total nitrogen removal. The findings underscored the complex interactions between rainfall, salinity, and specific base cations in influencing water quality in bioretention basins. This dissertation provided comprehensive insights into the hydrological performance, pollutant retention in soils, and water quality performance of stormwater bioretention and bioinfiltration basins. The findings contributed to the understanding of GSI system effectiveness and highlighted the importance of considering rainfall and other site & soil specific characteristics for optimizing the performance of such systems. Further research is recommended to explore the relationships between various environmental parameters and the behavior of pollutants in GSI basins, ultimately enhancing their contribution to sustainable stormwater management.
Download or read book Freshwater Vegetation Management written by Edward O. Gangstad and published by . This book was released on 1986 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Erosion and Sediment Control Planning and Implementation written by Burton C. Becker and published by . This book was released on 1972 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
