We have developed a multilayer soil characteristics dataset based on the usda state soil geographic database statsgo for application to a wide range of svat, climate, hydrology, and other environmental models. Users on the essc network may also directly access the arcinfo coverage and tables directories for each state. It is available for download from the soil data mart. Minor modifications have been made to the mapunit and comp tables to provide consistency in the naming and placement of the allwater mapunit. United states general soil map statsgo2 the digital general soil map of the united states or statsgo2 is a broadbased inventory of soils and nonsoil areas that occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped of 1. These data are available for download from the usda geospatial data gateway select direct data download and soil geographic databases. The conus file geodatabase has been split into smaller file sizes for ease of downloading. I ndividual conussoil data coverages may be found by.
Statsgo data use information united states agriculture. This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the national cooperative soil survey. This data set is a digital general soil association map developed by the national cooperative soil survey. The natural resources conservation service nrcs national cartography and geospatial center ncgc previously archived and distributed the state soil geographic statsgo database. The soil maps for statsgo are compiled by generalizing more. United states general soil map statsgo2 the digital general soil map of the united states or statsgo2 is a broadbased inventory of soils and non soil areas that occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped of 1. The soil maps for statsgo are compiled by generalizing more detailed soil survey maps. Statsgo soil data was collected from georgia gis data clearinghouse. Individual conus soil data coverages may be found by clicking on the buttons above. Statsgo data is defined on a statewide level, whereas ssurgo is countywide survey data. Statsgo soil polygons north dakota gis hub data portal. The soil map units are linked to attributes in the national soil information system data base which gives the proportionate extent of the component soils and their properties. It consists of a broad based inventory of soils and non soil areas that occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped of 1. Click the soil data explorer tab to access soil data for your area and determine the suitability of the soils for a particular use.
Click the statsgo link on the left side of the page, under the quick access heading. Department of agriculture, natural resources conservation service. This is similar to a clipping option for the map layers. Analysis of the overlayed data should be on a map polygon basis. Soil data access query submit your own sql or sql data shaping query to retrieve data from the soil data mart. Click the download statsgo data link under the section titled database access. Statsgo soil polygons download data statsgo soil polygons. For questions concerning these data contact dave mcmillen at david. This exercise is intended to introduce you to land use data and introduce you to the use of soils data from the statsgo soils coverage. State soil geographic statsgo data base for thecoternimous. The composition of the statsgo map unit can be characterized independently for the land use and for the soil component, but there are no data on their joint occurrence at a more detailed level.
Obtaining soil type statsgo data from the nrcs xms wiki. Obtaining soil type statsgo data from the nrcs xms. Find the most current information about hydric soils, including criteria, lists, and links to technical references and procedures. The ssurgo data also has a finer resolution than statsgo. Importing data with gis import the gssurgo 10m raster product from geospatial data gateway replacement for soil data mart, or import the gssurgo product and hydric soils query, or import ssurgo or statsgo vector data using soil data viewer to produce interpretative maps and layers. The digital general soil map of the united states or statsgo2 is a broadbased inventory of soils and non soil areas that occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped of 1. When statsgo data are overlayed with other data layers, such as land use data, caution must be used in generating statistics on the cooccurence of the land use data with the soil data. State soil geographic data base statsgo internet archive. Download data in the format and coordinate system of your choosing. The ssurgo user should be knowledgeable of the structure of the soil database and familiar with gis technology.
It consists of a broad based inventory of soils and nonsoil areas that occur in a repeatable pattern on the landscape and. Where more detailed soil survey maps are not available, data on geology, topography, vegetation, and climate are assembled, together with land remote sensing satellite landsat images. Due to the limitations for your selected area of interest where the inclusion will be standard the entire data set will be delivered for the order area chosen. The statsgo spatial and tabular data were revised and updated in 2006. The geospatial data gateway gdg provides access to a map library of over 100 high resolution vector and raster layers in the geospatial data warehouse. There are several download options if you want the soils data for a. State soil geographic statsgo data base for connecticut.
These data are intended for geographic display and analysis at the state, regional, and national level. General soil map are available for the conterminous united. An introduction to land use coverage that introduce the anderson land use classification system. Using soil data from the usda geospatial data gateway in. Select the download statsgo data link under the section titled database access. Digital general soil map of the united states statsgo2. Publication date 1991 topics soils, soil surveys publisher. Tabular data on the soil properties are provided by the info tables mapunit, comp, and layer, which are held separately from the soil coverages in the info directory. Department of agriculture, 1994 soil mapping unit identifiers gridded on a 1kilometer resolution for the conterminous united states. It consists of a broad based inventory of soils and nonsoil areas that occur in a repeatable pattern on the landscape and that can be cartographically. Mar 07, 2020 this digital data release consists of an arcinfo grid and associated info tables. This dataset is a digital soil survey and generally is the most detailed level of soil geographic data developed by the national cooperative soil survey. It consists of a broad based inventory of soils and nonsoil areas that occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped.
It was developed by the national cooperative soil survey and supersedes the state soil geographic statsgo dataset published in 2006. Soils data for the conterminous united states derived from. This statewide statsgo generalized soils coverage was provided by the national resources conservation service nrcs. To save space in your file area, you will just view the statsgo coverage for texas from my directory using arcview, rather than copying it over into your own file directory.
They are a good, detailed source of soil data to use with qswat, but they need some preparation first. Description of gridded soil survey geographic gssurgo. The coverage was compiled from individual state coverages contained in the october 1994 state soil geographic statsgo data base produced on cdrom. The items in the tables are weighted average values for several soil characteristics in the statsgo data base. It was developed by the national cooperative soil survey and supersedes the state soil geographic statsgo data set published in 1994. Statsgo mapunits soil texture class depth to bedrock sand, silt, clay fractions rock fragment class rock fragment volume bulk density porosity permeability available water capacity ph plasticity kfactor hydrologic soil groups curve numbers background methods data coverages citation. Natural resources conservation service, statsgo metadata reports this data set is a digital general soil association map developed by the national cooperative soil survey. The tabular data in this file contains estimated and measured data on the physical and chemical soil properties, soil interpretations, and static and dynamic metadata. Data for the statsgo data base are collected in 1 by 2degree topographic quadrangle units and merged and distributed as statewide coverages. Pat relates on the basis of a map unit identifier the 10,498 map units to 78,518 polygons. Or choose the obtain statsgo soil type data from the nrcs link. It can be downloaded from the qgis download page, where you should select the long term release repository, and the 64 bit standalone installer.
Therefore, the cellsize for these data is 1 hrap unit. The most frequently downloaded datasets are available for direct download without placing an order. Currently, statsgo data is available for the entire united states as well as puerto rico. Soil survey and supersedes the state soil geographic statsgo dataset. An introduction to statsgo that shows what the files look like for texas and for the region in central texas covered by the west austin 1. It was developed by the national cooperative soil survey and supersedes the state soil geographic statsgo dataset published in 1994. You can choose to view the results of the query immediately or, for larger volumes of data, you can choose to submit the query to be queued and run in background. Statsgo soil characteristics for the conterminous united. Downloadable from the geospatial data gateway direct data download page. Soil data access is the name of a suite of web services and applications whose purpose is to meet requirements for requesting and delivering soil survey spatial and tabular data that are not met by the web soil survey and geospatial data gateway websites.
We have recently added a kml export function to our online soil survey soil web. The composition of the statsgo map unit can be characterized independently for the land use and for the soil component, but there are no data on their joint. This document explains how to obtain and prepare ssurgo and statsgo2 data. Additional political, watershed, or other boundaries may be intersected with the soil data. Us general soil map statsgo2 by state geospatial data. The data inclusion option indicates how much geographical area will be delivered with a selected map layer.
This data set consists of general soil association units. Choose the statsgo link on the lefthand side of the page, under the quick access section. A section that unions the statsgo data with the land use data. The info tables have soil characteristics data in them. Click or press the enter or spacebar key to view the larger image. Allows you to generate, print, and download reports containing soil characterization data from the kellogg soil survey laboratory. Most tabular data exist in the database as a range of soil properties, depicting the range for the geographic extent of the map unit. The kml file contains labeled centroids, with links to the map unit descriptions which are normally found on soil web. Figure 3 statsgo attribute relational data base schema. The percentage of that component soil in the map unit was then calculated and the sum of the component soils per map unit was determined. This is an arctoolbox designed to process and manage ssurgo downloads from web soil survey and use them to create gssurgo databases. Web soil survey download only soil data access soil data access is the name of a suite of web services and applications whose purpose is to meet requirements for requesting and delivering soil survey spatial and tabular data, that are not being met by the current web soil survey and. Statsgo data use information united states agriculture state. The statsgo data use information document states that statsgo data are not detailed enough to make interpretations at a county level u.
Due to the limitations for your selected area of interest where the inclusion will be standard the entire data set will be. Texas gridded soil survey geographic gssurgo sciencebase. This video will explain how to download soil survey spatial and tabular data from the geospatial data gateway and how to use. Data were collected as part of the national cooperative soil survey. The items you want saved in a report can be added to your shopping cart. It is the one stop source for environmental and natural resources data, at any time, from anywhere, to anyone. The statebystate data from the usdanrcs cdrom is available for downloading as arcinfo export format files. Because of their spatially generalized nature, the statsgo data cannot be used to accurately estimate average soil characteristics for small areas.
Ssurgo and statsgo are soil data available for the usa and available free from the web. Tabular data of statsgo soil polygons in north dakota. The information was prepared by digitizing maps, by compiling information onto a planimetric correct base and digitizing, or by revising digitized maps using remotely sensed and other information. Also includes gssurgo mapping toolset for creating soil data viewerstyle maps and the gssurgo reporting toolset. It wasdevelped by the national cooperative soil survey and supersedes the state soil geographic statsgo data set published in 1994. Dynamic export of soil survey data to kml through soilweb. The soil map units are linked to attributes in the map unit interpretations record relational data base which gives the proportionate extent of the component soils and their properties. A section on the use of the statsgo layer table to determine the average available water capacity for this soil map unit. This product includes both spatial and tabular soil data for any state or washington, d.
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