Filters: Tags: Sediment (X)1,259 results (14ms)
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...
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;
This project assessed the potential effects of climate change on tidal marsh habitats and bird populations, identified priority sites for tidal marsh conservation and restoration, and developed a web-based mapping tool for managers to interactively display and query results. Project results can be found at PRBO’s San Francisco Bay Sea-Level Rise Website
This dataset contains geochemical data for unconsolidated sediments (stream sediments, lake sediments, etc.) collected by U.S. Geological Survey (USGS) personnel and analyzed in the analytical laboratories of the Geologic Division of the USGS. These data represent analyses of sediment samples collected in support of various USGS programs. The data were originally entered into the in-house Rock Analysis Storage System (RASS) database which was used by the Geologic Division from the early-1970's through the late-1980's to archive geochemical data. An unpublished CD-ROM was developed in 1996 that contains the RASS data in GSSEARCH format. That CD was used to generate this data set.
PINK STONE FIRE RECOVERY, REXFORD RANGER DISTRICT, KOOTENAI NATIONAL FOREST, LINCOLN COUNTY, MONTANA.
UPPER CHARLEY SUBWATERSHED ECOSYSTEM RESTORATION PROJECTS, POMEROY RANGER DISTRICT, UMATILLA NATIONAL FOREST, GARFIELD COUNTY, WASHINGTON.
ISSUING OF A MULTIPLE SPECIES INCIDENTAL TAKE PERMIT ON SIMPSON TIMBERLANDS; GRAY HARBOR, MASON, AND THURSTON COUNTIES, WASHINGTON.
SILVIES CANYON WATERSHED RESTORATION PROJECT, BURNS AND BEAR VALLEY RANGER DISTRICTS, MALHEUR NATIONAL FOREST, GRANT AND HARNEY COUNTIES, OREGON (DRAFT SUPPLEMENT TO THE DRAFT ENVIRONMETNAL IMPACT STATEMENT OF FEBRUARY 2001)
IMPLEMENTATION AGREEMENT, INADVERTENT OVERRUN AND PAYBACK POLICY, AND RELATED ACTIONS, LOWER COLORADO RIVER AND THE STATES OF ARIZONA, CALIFORNIA, AND NEVADA.
MAUDLOW-TOSTON POST-FIRE SALVAGE SALE, TOWNSEND RANGER DISTRICT, HELENA NATIONAL FOREST, BROADWATER COUNTY, MONTANA.
Spatial and temporal variations of stygobite Amphipod populations in interstitial aquatic habitats of karst/floodplain interfaces in France and Morocco
Population Characteristics and Contaminant Burdens of the White Sucker (Catostomus commersoni) from the St. Lawrence River near Cornwall, Ontario and Massena, New York