U.S. General Soil Map (STATSGO2) for Individual States

This dataset consists of general soil association units. It was developed by the National Cooperative Soil Survey and supersedes the State Soil Geographic (STATSGO) dataset published in 1994. 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 of 1:250,000 in the continental U.S., Hawaii, Puerto, and the Virgin Islands and 1:1,000,000 in Alaska. The dataset was created by generalizing more detailed soil survey maps. Where more detailed soil survey maps were not available, data on geology, topography, vegetation,
and climate were assembled, together with Land Remote Sensing Satellite (LANDSAT) images. Soils of like areas were studied, and the probable classification and extent of the soils were determined.

Map unit composition was determined by transecting or sampling areas on the more detailed maps and expanding the data statistically to characterize the entire map unit.

This dataset consists of georeferenced vector digital data and tabular digital data. The map data were collected in 1- by 2-degree topographic quadrangle units. The soil map units are linked to attributes in the National Soil Information System relational database, which gives the proportionate extent of the component soils and their properties.

These data provide information about soil features on or near the surface of the Earth. Data were collected as part of the National Cooperative Soil Survey. These data are intended for geographic display and analysis at the state, regional, and national level. The data should be displayed and analyzed at scales appropriate for 1:250,000-scale data.This record was taken from the USDA Enterprise Data Inventory that feeds into the https://data.gov catalog. Data for this record includes the following resources: STATSGO2-State For complete information, please visit https://data.gov.

本数据集汇聚了普遍的土壤关联单元，由国家合作土壤调查机构研制，并取代了1994年发布的州级土壤地理（STATSGO）数据集。该数据集涵盖了在景观上以可重复模式出现的广泛土壤和非土壤区域，能够在1:250,000比例尺的北美大陆、夏威夷、波多黎各和维尔京群岛以及阿拉斯加的1:1,000,000比例尺地图上进行图示。数据集通过综合更详细的土壤调查地图创建而成。在详细土壤调查地图不可用的情况下，汇集了地质、地形、植被和气候数据，以及土地遥感卫星（LANDSAT）图像。对类似区域的土壤进行了研究，并确定了土壤的可能分类及其范围。

地图单元的组成是通过在更详细的地图上横切或采样区域，并运用统计学方法扩展数据，以表征整个地图单元。

本数据集包含地理参考矢量数字数据和表格数字数据。地图数据是在1-2度地形四边形单位内收集的。土壤地图单元与国家土壤信息系统关系数据库中的属性相关联，提供了组成土壤的相对范围及其特性。

这些数据提供了关于地球表面或近地表土壤特征的信息。数据收集作为国家合作土壤调查的一部分。这些数据旨在用于州、区域和国家级别的地理展示和分析。数据应在适用于1:250,000比例尺数据的尺度上进行展示和分析。本记录摘自供入数据.gov目录的USDA企业数据目录。本记录的数据包括以下资源：STATSGO2-州级。如需完整信息，请访问https://data.gov。