Download or read book Nutrient Trends and Land Use Changes in Selected Watersheds in the Lower Susquehanna River Basin written by U. S. Government Printing Office (Gpo) and published by BiblioGov. This book was released on 2013-07 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Government Printing Office (GPO) was created in June 1860, and is an agency of the the U.S. federal government based in Washington D.C. The office prints documents produced by and for the federal government, including Congress, the Supreme Court, the Executive Office of the President and other executive departments, and independent agencies. The Coastal Zone Information Center (CZIC) collection provides access to nearly 5,000 coastal related documents that the U.S. Government Printing Office (GPO) received from the National Oceanic and Atmospheric Administration (NOAA) Central Library. The collection provides almost 30 years of data and information crucial to the understanding of U.S. coastal management and NOAA's mission to sustain healthy coasts. This is one of their documents.

Download or read book Nutrient Trends and Land Use Changes in Selected Watersheds in the Lower Susquehanna River Basin written by Robert Edward Edwards and published by . This book was released on 1987 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1988 with total page 1212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trends in Nitrogen Phosphorus and Suspended Sediment in the Susquehanna River Basin 1974 93 written by Robert Edward Edwards and published by . This book was released on 1995 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutrient Monitoring of the Lower Susquehanna River and Selected Tributaries written by Jerrald R. Hollowell and published by . This book was released on 1987 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preliminary Analysis of Nutrient Monitoring Data for the Susquehanna River and Selected Tributaries January 1 1985 December 31 1987 written by Arthur N. Ott and published by . This book was released on 1988 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 1994 Chesapeake Research Conference written by and published by . This book was released on 1995 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Affecting Nutrient Trends in Major Rivers of the Chesapeake Bay Watershed written by and published by . This book was released on 2000 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water resources Investigations Report written by and published by . This book was released on 2001 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Susquehanna River Basin Study Appendix J Land treatment and management written by Susquehanna River Basin Study Coordinating Committee and published by . This book was released on 1970 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutrient and Suspended sediment Concentrations Trends Loads and Yields from the Nontidal Part of the Susquehanna Potomac Patuxent and Choptank Rivers 1985 96 written by Linda C. Darrell and published by . This book was released on 1999 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Commodity and Resource Policies in Agricultural Systems written by Richard E. Just and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural, natural resource, and environmental problems are becom ing increasingly interdependent. For example, soil erosion is largely determined by agricultural land use. Both water use and water con tamination depend on land use and technology choice in agriculture. In many areas, the fertilizers and pesticides used in agriculture are ma jor pollutants of ground and surface water, having adverse effects on drinking water and fisheries. Agricultural pollutants such as pesticides also produce adverse health effects for agricultural workers and the consuming public. On the other hand, the availability of water resources and the value of competing land uses influence agricultural production. Additionally, regional air quality problems may affect crops and global environmental trends may have long-term implica tions for farming. Agriculture, natural resources and environmental quality are all heavily regulated in the U. S. , but they are done so by a vast array of competing or unrelated agencies within the U. S. Departments of Agriculture, Interior, and Commerce, the Environmental Protection Agency; and numerous state agencies. Considering the large number of bureaucratically remote public agencies involved and the pervasive in terdependencies between agriculture, natural resources and the environ ment, policies develop which are at best uncoordinated and at worst conflicting and counterproductive. These policies have become sources of controversy as different interest groups struggle to affect their im plementation, as different agencies have fought for administrative con trol and as legislative bodies have attempted to enact piecemeal changes.

Download or read book Nutrient Management and Control Strategies in the Susquehanna River Basin Towards Meeting Chesapeake Bay TMDL Goals written by Arghajeet Saha and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manure management is a major sustainability challenge in livestock-intensive agricultural regions, a product of the specialization and intensification of modern production systems. Nutrient imbalance and excess application of manure to field crops in the livestock intensive regions of Susquehanna River Basin (SRB) has led to nutrient enrichment in its local waters, as well as in surface waters delivered to the Chesapeake Bay. The delivery of excess nutrients from the SRB is significant in generating hypoxic water conditions in the Bay. Notwithstanding having more than 30 years of research and funding invested in improving the water quality of the Chesapeake Bay, the overall health continues to remain degraded. Restoration of the Bay is essential and requires inventive nutrient management approaches to control the nutrient loadings at various spatial and temporal scales in the SRB. Improving sustainable manure nutrient management in the SRB can play a vital role in reducing excess nitrogen (N) and phosphorus (P) loads delivered to the Bay. The overarching goal of our research was to develop manure nutrient management strategies for SRB and to quantify the potential water quality benefits derived from the strategies through scenario-based simulation modeling analyses. A comprehensive Soil and Water Assessment Tool (SWAT) model was developed for SRB and used for scenario analysis. To aid in model development, we devised a new taxonomically based soil dataset that minimized problems associated with many soil types and misrepresentations of soil identifiers across political borders in SSURGO data. The direct application of SSURGO increases spatial discretization in model which will increase computational cost. The developed taxonomic soil data acted as a suitable alternative since it was computationally efficient, in addition to being comparable to SSURGO in its representation of soil, hydrological and water quality metrics. The SRB SWAT model was developed to represent land use, land management and conservation practices, and fertilizer sources commonly prevalent in the watershed. The comprehensive SWAT model was able to represent over 144,473 spatial simulation units across the watershed. The first set of six manure nutrient management scenarios was based on the 'manureshed' concept, developed towards generating sustainable manure balanced systems by connecting crop areas (nutrient sinks) with livestock agriculture (nutrient sources). The manureshed scenarios conceptualized were (i) "Business-as-usual" which assumes manure is not transportable across sub-watershed boundaries and some areas have excess manure application than crop demand, (ii) "Watershed nutrient balance" which assumes excess manure from surplus areas are transportable and applied to crop areas based on nutrient demand, (iii) "Watershed nutrient balance avoiding runoff prone areas" which assumes manure is transportable and applied based on agronomic demand, but not applied in vulnerable landscapes. Manure application rates were calculated considering both N-based and P-based crop nutrient demands, totaling six manure application scenarios. The N-based business-as-usual scenario was considered as the model baseline. The crop N-based manure application applied excess P and P-based application needed supplemental N inorganic fertilizer application to meet crop nutrient demand. The manure redistribution scenarios decreased nutrient loads at the watershed outlet compared to the baseline. The P-based manureshed scenarios reduced manure nutrient (N and P) loadings (3% -25.2%) at the watershed outlet. P-based manuresheds that reallocated manure throughout the SRB based on agronomic P need and avoiding runoff prone areas satisfied agronomic need throughout the SRB and reduced inorganic fertilizer use to supplemental N. The second set of nutrient management scenarios aimed to explore the potential water quality impacts of manure application strategies considering the 4Rs of nutrient stewardship i.e., manure of right quantity applied at the right time and right place. A manure application timing scenario was developed considering antecedent moisture conditions and precipitation potential after manure application. The results compared with the business-as-usual baseline indicated that strategically timed nutrient application considering weather and nutrient demand lowered loading at the SRB outlet by 4% for N and 6% for P. Winter closure for manure having spring only application across the SRB showed an increase in crop nutrient uptake and yield and reduced annual nutrient loads delivered to the Bay from SRB. An incorporation scenario, where manure was applied below 10 mm in the soil, increased nitrate loss through leachate but showed significant reduction (9-53%) in nutrient (N and P) loss through surface runoff compared to the baseline. The practical application of this research would involve the utilization of results by policy planners, working groups, and landowners for developing sustainable nutrient management plans. However, successful implementation of this research will also be dependent of local level cost, science available for successful implementation, and engagement of farming communities.

Download or read book The State of the Chesapeake Bay Biennial Monitoring Report written by Chesapeake Bay Program (U.S.). Monitoring Subcommittee and published by . This book was released on 1989 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrology and the Effects of Selected Agricultural Best management Practices in the Bald Eagle Creek Watershed York County Pennsylvania Prior to and During Nutrient Management written by Michael J. Langland and published by . This book was released on 1995 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book EPA s 2008 Report on the Environment written by and published by . This book was released on 2008 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: [The report]... provides the American people with an important resource from which they can better understand trends in the condition of the air, water, land, and human health of the United States. This report uses scientifically sound measures, called indicators, to address fundamental questions relevant to the EPA's mission to protect the environment and human health. To accomplish its mission to protect human health and the environment, EPA must pay close attention to trends in the condition of the Nation's environment. This kind of information, which is captured in EPA's 2008 ROE, can help EPA to prioritize its work and to focus on human health and ecological activities that can lead to improvements in the conditions of the Nation's environment.