Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"watershed land use"”.
-
A Technique for Watershed Land Use Planning Under Uncertainty
Made available in DSpace on 2014-12-13T19:31:57Z (GMT). No. of bitstreams: 1 8009045.pdf: 6276817 bytes, checksum: 4697d3f044415f9305d35b76e72a7fb2 (MD5) Previous issue date: 1979
-
Evaluating the Effects of Watershed Land Use Distribution and BMP Data on HSPF Water Quality Predictions
… of contaminant losses at the field and subwatershed level. Three specific research objectives were accomplished in this study: 1) compare the HSPF-predicted flow, sediment, total nitrogen (TN) and total phosphorus (TP) loads resulting from simulation of spatially distributed site-specific …
-
Effects of watershed land use on the benthic macroinvertebrate assemblages in ridge and valley streams in Chattanooga, Tennessee
… of agricultural, urbanized and forested land-use were selected to best evaluate the resulting impacts of urbanization and other anthropogenic activities on the invertebrate community and over-all water quality. Characterizations of stream sites were made using indexes commonly used to …
-
THE INFLUENCE OF SEASON, FLOW REGIME, AND WATERSHED LAND USE AND LAND COVER ON NUTRIENT DELIVERY TO TWO RAPIDLY URBANIZING WATERSHEDS IN CENTRAL INDIANA, USA
… between temperate stream geochemistry and watershed land cover in two temperate streams, Fishback Creek and School Branch Creek, located in a rapidly urbanizing area on the northwest side of Indianapolis in Eagle Creek Watershed, Indiana. The temporal and spatial patterns of NO3-N, PO4, …
-
Predicting water quality effects on bay anchovy (Anchoa mitchilli) growth and production in Chesapeake Bay: linking water quality and individual-based fish models
… loadings. Increased nutrient loads have caused an increase in the extent and duration of hypoxic conditions. Restoration via large-scale reductions in nutrient loadings is now underway. How reducing nutrient loadings will affect water quality is well predicted; however the effect on fish is …
-
The effects of rainfall runoff from urban and rural watersheds on trihalomethane precursors in streams
… was to investigate the relationship between watershed land use and seasonal changes on THM-formation potential from the waters of four streams located in northern Virginia. Specific objectives were to observe the effect of impoundment on downstream THM precursor concentrations and to evaluate …
-
Ecosystem metabolism in coastal plain streams of southeast Louisiana : environmental and watershed effects
Since its introduction in 1956, the use of open-system, diel dissolved oxygen curves for estimating the components of ecosystem metabolism in the lotic setting have been important in determining the current ecosystem theory of streams, both spatially among multiple systems and longitudinally within …
-
Assessing the influence of geological and land-use gradients on zooplankton and phytoplankton biodiversity in the land between ecotone
The Land Between (TLB) is an ecotone in south-central Ontario that represents a transition from limestone-dominated bedrock to granite-dominated bedrock, creating notable calcium and land-use gradients across this unique geographic region. The goal of this study was to investigate water quality and …
-
Reservoir Management Techniques to Enhance Biological Productivity and Protect Water Quality
<p>Three reservoirs of similar size, watershed land use, and qualitative characteristics in northwest Arkansas, USA were selected to compare the effects of chemical fertilization and pulsed artificial-upwelling on whole-lake productivity, specifically primary production and phytoplankton biomass. …
-
Investigation of Factors Influencing Niche Differentiation of Ammonia-oxidizing Archaea and Bacteria in Freshwater Environments
… not influenced by the ammonium concentrations used in enrichment medium, but were comprised of AOB species commonly detected in freshwater environments. The AOB communities of the sediment and enrichments were strongly influenced by the watershed land use of the lake, and ammonium and nitrate …
-
The Effects of Microhabitat and Land Use on Stream Salamander Occupancy and Abundance in the Southwest Virginia Coalfields
Large-scale land uses such as residential wastewater discharge and coal mining practices, particularly surface coal extraction and associated valley fills, are of particular ecological concern in central Appalachia. Identification and quantification of both large-scale land use and microhabitat …