Skip to main content
Advanced Search

Filters: Tags: bulk density (X)

80 results (100ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
Reducing non-point source phosphorus (P) pollution is often necessary to improve water quality in agricultural streams. Soil total P (TP) concentrations and compaction are soil characteristics that can influence P losses to streams. The objective of this study was to compare these two soil characteristics among riparian forest buffers, grass filters, pastures with cattle fenced out of the stream, intensive rotational, rotational and continuously grazed pastures and row-cropped fields in three physiographic regions of Iowa. Soil TP and compaction for the seven riparian land-uses were determined in stream bank and surface riparian soils. Total P concentrations in stream bed material along the seven riparian land-uses...
Data in the IGS' GeoLab database for w#84836: results for a bulk density analysis on a sample from 0.72 to 0.72 feet deep; and results for 5 grain size analyses on samples from 0.72 to 6.23 feet deep.
Data in the IGS' GeoLab database for w#84840: results for a bulk density analysis on a sample from 0.49 to 0.49 feet deep; and results for 4 grain size analyses on samples from 0.49 to 6.56 feet deep.
Data in the IGS' GeoLab database for w#84845: results for a bulk density analysis on a sample from 0.52 to 0.52 feet deep; and results for 4 grain size analyses on samples from 0.52 to 6.66 feet deep.
thumbnail
These data were compiled to demonstrate new predictive mapping approaches and provide comprehensive gridded 30-meter resolution soil property maps for the Colorado River Basin above Hoover Dam. Random forest models related environmental raster layers representing soil forming factors with field samples to render predictive maps that interpolate between sample locations. Maps represented soil pH, texture fractions (sand, silt clay, fine sand, very fine sand), rock, electrical conductivity (ec), gypsum, CaCO3, sodium adsorption ratio (sar), available water capacity (awc), bulk density (dbovendry), erodibility (kwfact), and organic matter (om) at 7 depths (0, 5, 15, 30, 60, 100, and 200 cm) as well as depth to restrictive...
Tags: Arizona, Colorado, Colorado River, Colorado River Basin, Colorado River Basin above Hoover Dam, All tags...
thumbnail
These data were compiled to demonstrate new predictive mapping approaches and provide comprehensive gridded 30-meter resolution soil property maps for the Colorado River Basin above Hoover Dam. Random forest models related environmental raster layers representing soil forming factors with field samples to render predictive maps that interpolate between sample locations. Maps represented soil pH, texture fractions (sand, silt clay, fine sand, very fine sand), rock, electrical conductivity (ec), gypsum, CaCO3, sodium adsorption ratio (sar), available water capacity (awc), bulk density (dbovendry), erodibility (kwfact), and organic matter (om) at 7 depths (0, 5, 15, 30, 60, 100, and 200 cm) as well as depth to restrictive...
Tags: Arizona, Colorado, Colorado River, Colorado River Basin, Colorado River Basin above Hoover Dam, All tags...
thumbnail
Mangrove restoration has a strong potential to enhance the services provided by coastal wetlands on a number of Department of the Interior (DOI) managed lands throughout the southeastern United States of America. Services include storm protection, water quality improvement, and biological carbon sequestration. Forest structural attributes including basal area, tree height, and stem density by species are used to calculate above ground biomass and above ground productivity. Percent cover is used to asses the forest canopy health. The data collected for the soils are: bulk density, percent total Nitrogen, percent total Carbon, and selected samples percent total Phosporus. The forest structure plots were placed in...
thumbnail
This file contains soil data for 3 depths (0-0.5 meters, 0.5-1.5 meters, and greater than 1.5 meters) for percent sand, clay, and rockiness for the entire globe at a half degree grid resolution. A single bulk density value and mineral depth are also provided for each gridcell. Bulk density values came from the the International Geosphere Biosphere Programme (IGBP). Mineral depth, clay, sand, and rockiness values came from the International Satellite Land Surface Climatology Project (ISLSCP).
thumbnail
Winter climate change has the potential to have a large impact on coastal wetlands in the southeastern U.S. Warmer winter temperatures and reductions in the intensity of freeze events would likely lead to mangrove forest range expansion and salt marsh displacement in parts of the U.S. Gulf of Mexico and Atlantic coast. The objective of this research was to better understand some of the ecological implications of mangrove forest migration and salt marsh displacement. The potential ecological effects of mangrove migration are diverse ranging from important biotic impacts (e.g., coastal fisheries, land bird migration; colonial nesting wading birds) to ecosystem stability (e.g., response to sea level rise and drought;...
Data in the IGS' GeoLab database for w#84830: results for a bulk density analysis on a sample from 0.3 to 0.3 feet deep; and results for 8 grain size analyses on samples from 0.3 to 7.25 feet deep.
Data in the IGS' GeoLab database for w#84841: results for a bulk density analysis on a sample from 0.62 to 0.62 feet deep; and results for 5 grain size analyses on samples from 0.62 to 6.66 feet deep.
thumbnail
Grain size distribution and bulk density are reported for sediment samples from two flooded agricultural tracts, Little Holland Tract and Liberty Island, in the Sacramento-San Joaquin Delta, California. Samples were repeatedly collected at 8 sites using a Ponar grab or push core samplers during 19 visits to the study area from 2015 to 2019. The long-term time series data collection stations (sites LWA, HVB, HWC, and LVB) were sampled on almost every field survey, and the remaining sites were sampled 6 or times or fewer, some only once. All samples were analyzed for grain size distribution and some were analyzed for bulk density. These data provide insight into how particle size distributions varied spatially and...
thumbnail
This tabular data set represents the STATSGO Soil Layer Attributes compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. The source data is found in the LAYER table from the "STATSGO soil characteristics for the conterminous United States" produced by the United States Geological Survey (Wolock, 1997). The variables included are water-table depth, soil erodibility (k-fact), soil erodibility for the uppermost soil horizon (k-factup), permeability, average water capacity, bulk density, percent organic material, rainfall and runoff factor ("R factor"...
thumbnail
These data were compiled to demonstrate new predictive mapping approaches and provide comprehensive gridded 30-meter resolution soil property maps for the Colorado River Basin above Hoover Dam. Random forest models related environmental raster layers representing soil forming factors with field samples to render predictive maps that interpolate between sample locations. Maps represented soil pH, texture fractions (sand, silt clay, fine sand, very fine sand), rock, electrical conductivity (ec), gypsum, CaCO3, sodium adsorption ratio (sar), available water capacity (awc), bulk density (dbovendry), erodibility (kwfact), and organic matter (om) at 7 depths (0, 5, 15, 30, 60, 100, and 200 cm) as well as depth to restrictive...
Tags: Arizona, Colorado, Colorado River, Colorado River Basin, Colorado River Basin above Hoover Dam, All tags...
thumbnail
This file contains soil data for 3 depths (0-0.5 meters, 0.5-1.5 meters, and greater than 1.5 meters) for percent sand, clay, and rockiness for the entire globe at a half degree grid resolution. A single bulk density value and mineral depth are also provided for each gridcell. Bulk density values came from the the International Geosphere Biosphere Programme (IGBP). Mineral depth, clay, sand, and rockiness values came from the International Satellite Land Surface Climatology Project (ISLSCP).
thumbnail
This file contains soil data for 3 depths (0-0.5 meters, 0.5-1.5 meters, and greater than 1.5 meters) for percent sand, clay, and rockiness for the entire globe at a half degree grid resolution. A single bulk density value and mineral depth are also provided for each gridcell. Bulk density values came from the the International Geosphere Biosphere Programme (IGBP). Mineral depth, clay, sand, and rockiness values came from the International Satellite Land Surface Climatology Project (ISLSCP).
Data in the IGS' GeoLab database for w#84839: results for a bulk density analysis on a sample from 0.33 to 0.33 feet deep; and results for 4 grain size analyses on samples from 0.33 to 6.27 feet deep.
thumbnail
A cvs file containing field datasets used to develop regression models to predict sediment and nutrient retention services for stream within the Difficult Run watershed. Field measurements of floodplain deposition and bank erosion were provided in previously published datasets from Hupp et al. (2013) and Gellis et al. (2017). At each field site 3-5 nearby cross-sections from the Toolbox where used to represent the floodplain and streambank sampling locations at the field sites. Metrics derived from the Toolbox are provided in this data table.
thumbnail
These data were compiled to demonstrate new predictive mapping approaches and provide comprehensive gridded 30-meter resolution soil property maps for the Colorado River Basin above Hoover Dam. Random forest models related environmental raster layers representing soil forming factors with field samples to render predictive maps that interpolate between sample locations. Maps represented soil pH, texture fractions (sand, silt clay, fine sand, very fine sand), rock, electrical conductivity (ec), gypsum, CaCO3, sodium adsorption ratio (sar), available water capacity (awc), bulk density (dbovendry), erodibility (kwfact), and organic matter (om) at 7 depths (0, 5, 15, 30, 60, 100, and 200 cm) as well as depth to restrictive...
Tags: Arizona, Colorado, Colorado River, Colorado River Basin, Colorado River Basin above Hoover Dam, All tags...


map background search result map search result map Percent sand in surface soil horizons for the world Percent sand in deep soil horizons for the world Percent clay in intermediate soil horizons for the world Laboratory Notes - Scanned Laboratory Notebook Pages for the following project - Ecological implications of mangrove forest migration in the southeastern US (2012-2-13) Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: STATSGO Soil Characteristics, Layer Attributes Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017) Field estimated floodplain and bank flux and toolbox geomorphic metrics for field sites in Difficult Run, VA Predictive soil property map: Organic matter Predictive soil property map: Rock content (>2mm) Predictive soil property map: Sodium adsorption ratio Predictive soil property map: Very fine sand content Grain size and bulk density from Little Holland Tract and Liberty Island, Sacramento-San Joaquin Delta, California, 2015 to 2019 Laboratory results associated with site w#84830. Laboratory results associated with site w#84836. Laboratory results associated with site w#84839. Laboratory results associated with site w#84840. Laboratory results associated with site w#84841. Laboratory results associated with site w#84845. Grain size and bulk density from Little Holland Tract and Liberty Island, Sacramento-San Joaquin Delta, California, 2015 to 2019 Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017) Field estimated floodplain and bank flux and toolbox geomorphic metrics for field sites in Difficult Run, VA Laboratory Notes - Scanned Laboratory Notebook Pages for the following project - Ecological implications of mangrove forest migration in the southeastern US (2012-2-13) Predictive soil property map: Organic matter Predictive soil property map: Rock content (>2mm) Predictive soil property map: Sodium adsorption ratio Predictive soil property map: Very fine sand content Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: STATSGO Soil Characteristics, Layer Attributes Percent sand in surface soil horizons for the world Percent sand in deep soil horizons for the world Percent clay in intermediate soil horizons for the world