Soils

The Soil Survey Geographic (SSURGO) database was downloaded for Colorado and reduced to an area covering all of the Mile High Flood District and 1500 feet beyond the District's boarder. Using the mupolygon (map unit polygon) layer and the associated tables within the database, a list of select attributes were compiled for use within the District for studies and projects alike. 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. 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. This dataset consists of georeferenced digital map data and computerized attribute data. The map data are in a state-wide extent format and include a detailed, field verified inventory of soils and miscellaneous areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. 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. Update Frequency: Annually Last Updated: 6/22/2023 For questions about this layer, please reach out to [e-mail]土壤调查地理数据库（Soil Survey Geographic, SSURGO）从科罗拉多州获取并裁剪至覆盖整个迈尔海洪水区（Mile High Flood District）及其周边1500英尺范围的区域。借助数据库内的地图单元多边形（map unit polygon, mupolygon）图层及关联数据表，研究人员整理了一批精选属性字段，供该辖区开展各类研究与项目使用。 本数据集为数字化土壤调查成果，通常是全国合作土壤调查（National Cooperative Soil Survey）所产出的最精细级别的土壤地理数据。其信息通过以下方式制备：对地图进行数字化、将信息整合至平面校正基底后开展数字化，或是利用遥感数据及其他信息对数字化地图进行修订。本数据集包含地理参考数字化地图数据与计算机化属性数据。 地图数据采用全州范围格式，包含经野外验证的详细土壤与杂类区域清单——这些要素通常在地表以可重复的模式分布，且可按照成图比例尺进行制图表达。土壤制图单元与全国土壤信息系统（National Soil Information System）关系型数据库中的属性相关联，该数据库可提供各组成土壤的占比范围及其相关属性。 更新频率：每年一次 最后更新日期：2023年6月22日 若需咨询该图层相关问题，请联系邮箱[e-mail]