Download or read book Phosphorus Management in the Lake Erie Basin written by Stephen M. Yaksich and published by . This book was released on 1980 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphorus Management in the Lake Erie Basin written by International Joint Commission. Lake Erie Regulation Study and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphorus Management in the Lake Erie Basin Lake Erie Wastewater Management Study Water Quality Information Bulletin written by United States. Army. Corps of Engineers and published by . This book was released on 1980 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Reduced Tillage on Phosphate Transport from Agricultural Land written by Terry J. Logan and published by . This book was released on 1981 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines and summarizes published and some unpublished data on the relative effects of conservation tillage (primarily no till) versus conventional tillage on surface runoff, soil loss and phosphorus loss. The data show that conservation tillage increased runoff relative to conventional tillage on soils with poor internal drainage and reduced runoff on more permeable soils. Conservation tillage greatly reduced soil loss and total particulate P (TPP) loss, but the percent reduction of TPP was only 89% of the percent reduction in soil loss. Conservation tillage increased soluble P (OP) losses in all cases. Conservation tillage was less effective in reducing plant-available (Bray P1) phosphate than in reducing TPP. P fertilization in excess of crop needs increased soluble P losses in runoff, and the effect of P fertilization on soluble P losses was greatest with no till because of P accumulation at the surface. (Author).

Download or read book Methodology for Evaluating In Lake Effects Resulting from Phosphorus Management in the Lake Erie Basin written by Ralph R Rumer (Jr) and published by . This book was released on 1978 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report outlines the knowledge of the phosphorus budget in Lake Erie and describes a long-term total phosphorus model that has been used to simulate the phosphorus dynamics in the lake. The model incorporates the input of phosphorus to the lake from the drainage basin, exchange of phosphorus at the sediment-water interface and export of phosphorus from the lake by river outflow. Using available data and assuming equilibrium, the model was calibrated and used to project future in-lake phosphorus concentrations for a recommended objective loading of 11,000 metric tons of total phosphorus. The findings indicate that management of nonpoint, as well as point sources, will be required to meet the loading objective. The model output also enables the projection that the trophic status of the central basin of Lake Erie will be significantly improved (mesotrophic) if the recommended objective loading is obtained. (Author).

Download or read book Phosphorus Management Strategies for Lakes written by New York State College of Agriculture and Life Sciences and published by CRC Press. This book was released on 1980 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.

Download or read book Phosphorus Management for the Great Lakes written by Phosphorus Management Strategies Task Force and published by Windsor, Ont. : The Task Force. This book was released on 1980 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary Report of the Lake Erie Wastewater Management Study written by and published by . This book was released on 1983 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book From Policy to Implementation written by Erinn Lee and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus plays a critical role in the re-eutrophication of Lake Erie. This research aims to inform the development of alternative phosphorus management approaches that contribute to reducing phosphorus loss into Lake Erie from agricultural sources, particularly cash crop and vegetable farms. The research employs a mixed-methods approach: a Policy Delphi to identify supported phosphorus management approaches followed by one-on-one interviews with farmers to determine place-based implementation considerations of the identified options and to provide their own suggestions. The Policy Delphi generated 88 ideas for agricultural phosphorus management. 37 of these received ratings of High Consensus, Weakly Support-Strongly Support and/or Strongly Support in the Policy Delphi. This thesis offers an overview of desirability and feasibility considerations of these policy options, as well as an improved understanding of farmer preferences and challenges and the interplay between agri-environmental policy development, implementation and communication.

Download or read book METHODOLOGY FOR EVALUATING IN LAKE EFFECT RESULTING FROM PHOSPHORUS MANAGEMENT IN THE LAKE ERIE DRAINAGE BASIN written by Ralph R. Rumer and published by . This book was released on 1978 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alternative Management Options for the Control of Diffuse Phosphorus Loads to Lake Erie Lake Erie Wastewater Management Study written by Terry J. Logan and published by . This book was released on 1982 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: Available phosphorus soil test levels in Ohio and Michigan agricultural soils have increased steadily since the 1960's. These increases are reported here, by county, for those counties in the Lake Erie Basin of these two states. An economic analysis of phosphate fertilizer use in Ohio Lake Erie Basin counties for corn, soybeans and wheat, shows that there is an overuse of phosphate on corn and insufficient P fertilization of soybeans. P fertilizer use on wheat is at the economic optimum. The dissolved and particulate phosphate load reductions which could be obtained by reducing available P in agricultural soils from their 1980 levels down to the sufficiency level for corn and soybeans were estimated for the Ohio and Michigan Lake Erie counties. Reductions were small compared to the reductions which could be achieved with conservation tillage, but could become more significant if available phosphorus level in Basin agricultural soils continue to rise. The costs and phosphorus reductions obtainable with a side range of agricultural management practices were compared. Conservation tillage offered the most cost-effective means of greatly reducing the agricultural diffuse phosphorus load to Lake Erie. (Author).

Download or read book Levels of Plant Available Phosphorus in Agricultural Soils in the Lake Erie Drainage Basin written by and published by . This book was released on 1977 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus has been identified as the nutrient element most limiting to the growth of algae in Lake Erie. In addition, nutrient loadings by tributaries are a major source of phosphorus to the lake; of this load, the diffuse load, and especially the agricultural diffuse load is a major component of the total P input to Lake Erie. The particulate P load carried by a stream has several sources: native soil P, P from fertilizer, manure, and waste, P from crop residues and detritus. The bulk of sediment-P, however, is native soil P except where additions of manure have been heavy over many years. In light of these issues, a study was initiated to investigate levels of available-P in agricultural soils in the Lake Erie drainage basin. This report is concerned with two major objectives: (1) To survey actual field levels of available P in a county in Ohio and compare these with published soil test summary data for the same area; and (2) to determine if similar data were available in other Lake Erie Basin states and to determine if soil test methods and recommendations varied significantly from state to state. (Author).

Download or read book Comprehensive Management of Phosphorus Water Pollution written by D. B. Porcella and published by . This book was released on 1974 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lake Erie Wastewater Management Study Methodology Report written by United States. Army. Corps of Engineers. Buffalo District and published by . This book was released on 1979 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphorous Management in the Lake Erie Basin Lake Erie Wastewater Management Study written by Steven M. Yaksich and published by . This book was released on 1978 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The deteriorated condition of the Lake Erie water resource, which had been well publicized during the 1960's contributed to the decline in the fishing industry and prohibited the full recreational use of the lake. Lake Erie, like many similar lakes exposed to cultural changes in the drainage basins, was undergoing accelerated eutrophication. A eutrophic lake is characterized by high algal production, turbidity, and at times, low oxygen content. These conditions combine to cause unpleasant tastes and odors, nuisance weeds on surface waters and on beaches, and a general degradation of the lake's ecosystem which leads to less desirable fish species in the lake. This study has established some of the important cause and effect relationships that have contributed to this accelerated eutrophication. The major pollutant responsible for the eutrophication, or advanced aging of the lake, is the nutrient, phosphorus. A specific plan has been developed which will lead to significant improvement in the quality of Lake Erie water and bring about a restoration of this vital fresh water resource. This management plan addresses the cause and effect relationships between land use in drainage basin and the level of phosphorus concentrations in the lake. The implication of the findings is that land management will be equally important as municipal and industrial wastewater renovation in the development of an overall plan for the reduction of phosphorus loadings to Lake Erie. (Author).

Download or read book Phosphorus Transport in Rivers written by and published by . This book was released on 1978 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research work contained in this report concerns the transport of total phosphorus and orthophosphorus to Lake Erie. The various calculational techniques for analyzing data obtained from Lake Erie tributaries are presented. These calculations were developed to determine the source of the phosphorus and to quantify the input to the lake. The source and quantity of phosphorus devised for Lake Erie. The first section of this report presents the basic concepts, mass balances (that applied to the water and that applied to the phosphorus), and force relationships. The second section of this report concerns the quantification of total phosphorus input to Lake Erie river basins and shortline sources. A computational method called the Flow Interval Method was devised to permit the calculaion of total phosphorus influx without measuring the total phosphorus concentration for the entire year. Another important aspect of reducing total phosphorus influx from river basins is the understanding of the transport processes in rivers. The third section of this report concerns the transport of total phosphorus during storm events. The fourth section of this report presents the derivation of the necessary equations used to calculate the distance of the travel density function form measurements of the water flow rate and the total phosphorus concentrations at a point in the stream.

Download or read book Lake Erie Wastewater Management Study written by and published by . This book was released on 1982 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: