Download or read book Biological Studies of Several Western North Carolina Streams and Rivers to Determine the Impact of Non point Sources of Pollution written by David Penrose and published by . This book was released on 1978* with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Report written by and published by . This book was released on 1988 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Evaluation of Non point Source of Pollutants in North Carolina Streams and Rivers written by David R. Lenat and published by . This book was released on 1979* with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landscape Characteristics and North Carolina Stream Life A Multiple scale Ecological Risk Assessment of Nonpoint Source Pollution written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonpoint sources of pollution may be responsible for as much as 50 percent of current water quality degradation in the United States, and as much as 70 percent in the Southeast. In this study, I used an ecological risk assessment methodology, at the watershed scale and riparian scales (zones 300, 100, and 50 feet on either side of streams), to analyze and quantify the impact of nonpoint pollution on the ecological integrity and water quality of North Carolina streams. Specifically, I determined how land-use patterns relate to aquatic ecological integrity, including the extent to which one of the most widely promoted best management practices (BMPs) - the preservation of riparian vegetated buffers - correlates with better ecological integrity. The central goal of this project was the creation of a set of empirical models that describe the vulnerability of North Carolina aquatic ecological integrity - as measured by benthic macroinvertebrate community structure - to changes in the landscape-scale sources of nonpoint pollution. The models, the result of multiple regression analysis of Geographic Information System (GIS)-derived data, take into account watershed eight land form characteristics, and three land cover types derived from 1992 Multi-Resolution Land Characterization (MRLC) Consortium raster data: forest, urban, and agriculture. The land form characteristics considered in this analysis are topographic complexity, mean elevation, watershed slope/relief ratio, watershed area, watershed shape, rainfall, soil clay content, and ecoregion. The regression equation models created by this process can be used by managers and policymakers to weigh the risks of management and policy decisions for a given watershed or set of watersheds, including whether vegetated riparian buffers are ecologically effective and economically efficient in achieving water quality standards. The coefficient of multiple determination (R2) for each equation indicates the p.
Download or read book Biological Monitoring for Environmental Effects written by Douglas L. Worf and published by Free Press. This book was released on 1980 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Restoration of Aquatic Ecosystems written by National Research Council and published by National Academies Press. This book was released on 1992-01-01 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Resource Manager s Guide for Using Aquatic Organisms to Assess Water Quality for Evaluation of Contaminants written by Henry O. Krueger and published by . This book was released on 1988 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of Water Pollution written by United States. Federal Water Pollution Control Administration and published by . This book was released on 1967 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Procedures for the Assessment of Contaminated Sediment Problems in the Great Lakes written by and published by . This book was released on 1988 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quest for Clean Streams in North Carolina written by David H. Howells and published by . This book was released on 1990 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonpoint and Point Sources of Nitrogen in Major Watersheds of the United States written by Larry J. Puckett and published by . This book was released on 1994 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicology Research Projects Directory written by and published by . This book was released on 1980-10 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program for Evaluating Stream Quality in North Carolina written by Hugh B. Wilder and published by . This book was released on 1978 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design and objectives of the program for evaluating stream quality in North Carolina are described. Using water-quality and streamflow data collected since the 1940's, a study is underway to define certain variations in water quality, to quantify the effects of man 's activities on water quality, and to determine long-term trends at key locations on the State 's major river. Data collected from 47 unpolluted stream sites were used to estimate average concentrations for naturally occurring constituents during periods of high and low flow. Methods are described for estimating constituent loads derived from both natural sources and sources of pollution. (Woodard-USGS)
Download or read book Stream Pollution in North Carolina written by University of North Carolina (1793-1962). Institute of Government and published by . This book was released on 1951 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Proceedings at Public Hearing Regarding Proposed Classifications for the Waters of the Broad River Basin July 13 and 12 1962 written by North Carolina. State Stream Sanitation Committee and published by . This book was released on 1962 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
