nonpoint source pollution and livestock manure management

... roles in soil and water resource conservation and nonpoint source assessments, including sediment load assessment and inventory, conservation planning and design of sediment control, and the advancement ... erosion are tillage and thawing The mechanisms of consolidation, time, and suction, were studied by Nearing et al.78 for a clay soil and by Nearing and West79 for fine sand, silt loam, and clay soils ... widely and depends on the size and shape of the contributing area; the steepness, length, and shape of contributing surfaces; sediment characteristics; buffer zones; storm characteristics; and land...

Ngày tải lên: 11/08/2014, 15:20

... Ontario and 58.4 mg N/L for a dairy farm 3.8 NITROGEN AND WATER MANAGEMENT PRACTICES TO REDUCE NONPONT SOURCE POLLUTION 3.8.1 NITROGEN MANAGEMENT PRACTICES 3.8.1.1 Accounting For All Sources ... 1988 120 Baker, J L., Agricultural areas as nonpoint sources of pollution, in Environmental Impacts of Nonpoint Source Pollution, Overcash, M R., and Davidson, J M., Eds., Ann Arbor Science Publishers, ... animal disposal pits, stockpiled manure, and livestock feedlots Reese and Louden55 conducted a literature review on seepage from earthen livestock waste storage basins and lagoons on data from 1970...

Ngày tải lên: 11/08/2014, 15:20

... Novotny, V and H Olem 1994 Water quality: prevention, identification and management of diffuse pollution Van Nostrand Reinhold, New York, New York 25 Storm, D E., T A Dillaha III, S Mostaghimi, and ... environment are important factors in understanding the potential for, and impacts of, P transport through watersheds in agricultural and native landscapes The fate and transport of P depend to a great ... content and organic P mineralization occurs.3 Rainfall, plant residues, commercial fertilizers, animal manures, and municipal, agricultural, and industrial wastes or by-products are the major sources...

Ngày tải lên: 11/08/2014, 15:20

... were no-tillage and preemergent, disk and pre-emergent, plow and pre-emergent, disk and preplant incorporated, and plow and preplant incorporated In total, 63.5 and 127 mm of rainfall were applied ... practice and method of chemical application on atrazine and alachlor losses through runoff and erosion on four sites in Kansas and Nebraska The five treatments evaluated were no-tillage and preemergent, ... J., and Beak, D G., Tillage, crop and climatic effects on runoff and tile drainage losses of nitrates and four herbicides, Soil Till Res., 30, 75, 1994 45 Hickman, M V., Schreiber, M M., and...

Ngày tải lên: 11/08/2014, 15:20

... nutrients from manure and manured fields, thus reducing fertilizer expenses and water pollution The key to conserving manure P and K is to reduce erosion and runoff from fields Conserving manure N ... microorganisms, and salts Nitrates are a major concern in groundwater contamination Potential sources of nonpoint source pollution are runoff from feedlots and barnyards, manure land application sites, livestock ... operations 6.2 MANURE CHARACTERISTICS Both ASAE6 and the Natural Resources Conservation Service (NRCS)7 have published standard values for physical and chemical properties of manure for livestock and poultry...

Ngày tải lên: 11/08/2014, 15:20

... sediment and phosphorous and nitrogen levels 7.4 PERFORMANCE CHARACTERISTICS OF IRRIGATION SYSTEMS AFFECTING NONPOINT SOURCE POLLUTION Nonpoint source pollution in arid and semiarid areas of the ... the best method minimizes nonpoint source pollution by reducing drainage or surface runoff An irrigation method that maximizes profit and minimizes nonpoint source pollution is the obvious choice ... circumstances and may not reflect the field-wide uniformity 7.5 REDUCING DRAINAGE FROM IRRIGATED LAND: A CONCEPTUAL APPROACH Reducing nonpoint source pollution from irrigated land involves reducing...

Ngày tải lên: 11/08/2014, 15:20

... field ditches Land grading is the shaping of the land surface with scrapers and land planes to planned surface grades Land smoothing removes small depressions and irregularities in the land surface ... concentrations under no-tillage and conventional tillage, respectively, were 29.4 and 35.6 mg/L at 1.2 m, 19.6, and 26.5 mg/L at 1.8, 18.5, and 13.9 mg/L at 3.0 m, and 2.4 and 4.5 mg/L at 4.6 m The ... LLC and groundwater and tile outflow under conventional tillage and conservation tillage on Rhinebeck sandy clay loam and variant clay loam soils Low concentrations of atrazine (0.2–0.4 ␮g/L) and...

Ngày tải lên: 11/08/2014, 15:20

... Lillesand, T M and R W Kiefer, Remote Sensing and Image Interpretation, 2nd ed John Wiley and Sons, Inc., New York, NY, 1987 84 Johnes, P J., Evaluation and Management of the Impact of Land Use ... example, GLEAMS (Knisel and Davis41) is a nonpoint source pollution management model where it is capable of simulating the relative impacts of different agricultural management systems on water ... water and chemicals through soil profile Predicts surface and root zone hydrologic and water quality response Predicts pesticide and nitrogen fate in surface and crop root zone Predicts surface and...

Ngày tải lên: 11/08/2014, 15:20

... plans for crop /livestock and intensive livestock farms The methods used to handle and store the manure influence the natural processes that affect the nutrient content of the manure This is especially ... precision and sensitivity required Relationships among selected variables (land use and management practices) and the measured continuous response variables (sediment and chemical concentrations and ... land treatment in The national rural clean water program: 10 years of controlling agricultural nonpoint source pollution, Washington D.C., USEPA, 1992 Bull, L and C Sandretto, Crop residue management...

Ngày tải lên: 11/08/2014, 15:20

... both by point and nonpoint sources of pollution Point sources include easily defined sites from which pollutants are discharged; in contrast, nonpoint sources are of a diffuse nature and difficult ... point sources of pollution, the challenges of monitoring diffuse pollution are exceedingly more difficult and typically result in greater costs This is because of the inherent causes of nonpoint source ... field and laboratory activities Elements of the plan focus on all aspects of • • • • • • • management (e.g., staffing and management hierarchy) training of field and laboratory staff standard...

Ngày tải lên: 11/08/2014, 15:20

... alternatives to the installation of detention and treatment facilities, and find the optimum management practices for nonpoint source pollution control by analyzing the pollution reduction effects of the ... runoff and removal of pollutants, and also construct a stormwater treatment plant This study tries to derive the optimum management practices for nonpoint source pollution by analyzing the pollution ... perfect environmental management through optimum nonpoint source pollution control by complementing their existing treatment system As a means to reduce the nonpoint source pollution during rainfall,...

Ngày tải lên: 05/09/2013, 09:08

... of Manure Storages Semisolid Manure Storage Manure storage type depends on how the manure is handled Manure can be handled as liquid, slurry, semisolid, or solid The total solids (dry matter) and ... beddings and so most manure is handled as solids If possible, manure should be used from stalls daily if possible and land applied Manure can be stored as solids in stack structures and/ or composted ... want to avoid systems with a lot of daily labor For manure storage management and safety, see Poultry and Livestock Manure Storage: Management and Safety, VCE publication 442-308 • Do not locate...

Ngày tải lên: 08/03/2014, 09:20

... Impacts Kenneth L Campbell and Dwayne R Edwards Chapter Pesticides and Water Quality Impacts William F Ritter Chapter Nonpoint Source Pollution and Livestock Manure Management William F Ritter ... phosphorus, and pesticides are discussed Chapter discusses nonpoint source pollution from the livestock industry Surface water and groundwater quality effects from feedlots, manure storage and treatment ... irrigation water management, livestock waste management, surface and groundwater quality, and land application of wastes He has served as a consultant to government and industry on wastewater management, ...

Ngày tải lên: 16/03/2014, 11:44

... Navigation and pollution in the Northern Sea Route 227 Legislation governing vessel -source pollution within the Arctic EEZ: ‘due regard to navigation’ ‘Due regard to navigation and the protection and ... escort, shall establish periods and areas closed for navigation, and also other measures ensuring the safety of shipping and the prevention, reduction, and control of pollution of the marine environment ... when they unilaterally adopt and enforce their laws and regulations governing vessel -source pollution in ice-covered areas within the limits of the EEZ These laws and regulations may provide for...

Ngày tải lên: 01/11/2013, 09:20

... existing theory and knowledge in the fields of open Goals and Methodology Methodology source and knowledge management, and by joining them together we hoped to be able to assess open source in a new ... packaged Cost models, resource allocation models for staffing, schedule, and computer utilization, and the relationship between resources and various factors that affect resources (Basili, Caldiera ... Source Development In this chapter we introduce and give an overview of what open source is, and where it originates We describe what project and development perspectives are common to open source...

Ngày tải lên: 24/01/2014, 00:20

... Natural Resources Science: Water MS.NR.3.4.TM.B Point Source vs Nonpoint Source Water Pollution Objective Cite three examples and sources of water pollution (point and nonpoint) I Review water pollution ... definition of nonpoint source water pollution Remember, nonpoint source water pollution can be defined as a contaminant that comes from a source that is not easily identifiable or from multiple sources ... Contaminant Source Actual Contaminant Point or NonPoint? Cup A Soil/Sediment Nonpoint Cup B Bleach Nonpoint Cup C Oil Point AND Nonpoint Cup D Dish Soap Nonpoint Cup E Liquid Fertilizer Nonpoint...

Ngày tải lên: 18/02/2014, 04:20

... concerns and complaints on nonpoint source pollution in streams and lakes Managing state and federal nonpoint source funds The State periodically reviews and evaluates its nonpoint source management ... Prevention of Nonpoint Source Pollution from Known Discharges The Nonpoint Source Program in Alaska places nonpoint source pollution requirements aimed at preventing and abating pollution on log ... effective nonpoint source Alaska’s Nonpoint Source Water Pollution Control Strategy management program and includes the Nonpoint Source Pollution Action Plan with Objectives and Tasks for the...

Ngày tải lên: 15/03/2014, 16:20

... standpoint, Lean brings to the pollution prevention and resource conservation financial equation very powerful cost drivers that move well beyond materials efficiency and avoided regulatory and ... and protecting human health and the environment, and because moving outside of existing legal and regulatory precedent represents substantial risks to both regulatory agencies and permitted sources ... systemic and on-going evaluation of waste that is embraced and implemented by operations personnel; substantial engagement of employees, suppliers, and customers; development and utilization of pollution...

Ngày tải lên: 15/03/2014, 16:20

... agricultural soils, and salinization and pollution of water resources due to the use of agrochemicals The future of irrigated agriculture should be focused on a better use of water resources and on the ... irrigation management and the first chapter presents a comparison of water use efficiency and productivity in two different furrow irrigation systems Chapter two compares water management and contamination ... to pollution and possibilities of its minimization in irrigated lands, and the potential reuse of different types of waters We hope these studies will provide a basis for future research and...

Ngày tải lên: 28/06/2014, 14:20