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This feature contains a spatial representation of streams and stream segments with water quality information from Oregon’s 2010 Integrated Report Assessment Database and 303(d) List as approved by EPA on March 15, 2012. This feature should be used in conjunction with the feature ORLakesWaterQuality_2010. A water body may have assessment information for multiple pollutants or conditions, and may have multiple data records associated with the spatial representation of the water body or segment of the water body. Oregon’s 2010 Integrated Report Assessment Database and 303(d) List are available on-line at http://www.deq.state.or.us/wq/assessment/rpt2010/search.asp. The on-line searchable database should be used...
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This dataset depicts relative erosion rate derived for all land draining above the Mesoamerican reef. It is a function of slope, land cover type, precipitation and soil type. The indicators developed by the Reefs at Risk in the Caribbean project enable detailed comparative analyses of threats on many scales. The Reefs at Risk indicators are a simplification of human activities and complex natural processes. This data set was derived at the World Resources Institute for input to the sedimentation and pollution from watershed based sources threat analysis. Agriculture, though important to economic development and food security, is a source of increased sediment, nutrient, and pesticide runoff. Threats from sedimentation...
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Using basins derived from a hydrologically-corrected 30m resolution DEM as a unit for summary statistics, we provide a series of indicators focused on land-based sources of threat within the US Virgin Islands and Puerto Rico. This includes indicators of a) the relative vulnerability of the land to erosion (based on slope, precipitation and soil erodibility); b) the relative erosion potential (REP) of the land, based on the relative vulnerability of the land, coupled with the current land cover type; c) the sediment delivery rate for each basin (percentage of eroded which reaches the river mouth); d) estimated sediment delivery for the basin, given current land use;
map background search result map search result map 2012 OR DEQ Rogue WQ Limited Streams - Sedimentation Mesoamerican Relative Erosion Rate Puerto Rico Watershed Indicators by Basin Puerto Rico Watershed Indicators by Basin 2012 OR DEQ Rogue WQ Limited Streams - Sedimentation Mesoamerican Relative Erosion Rate