Thurston Soils Gopher USDA

This data is a subset of the NRCS soils data (March 2007), as requested by Thurston County Development Services Long Range Planning. This data identifies soil types that support pocket gopher habitat and is intended for planning and conservation efforts. Text disclaimer for Gopher Soils per Thurston County Planning Department: All soils shown on the Mazama pocket gopher soils map are to be used to determine areas that could potentially be suitable for Mazama pocket gophers and their habitat. The soils are derived from the final Federal Rule regarding the listing of the Mazama pocket gopher, which is on file with the Resource Stewardship Department. This map is a screening tool of where Mazama pocket gophers or their habitat may be present. The map should not be used as a final indicator that gophers are present, or that gopher habitat exists on a specific property. Mazama pocket gophers can be found in other locations outside of the mapped areas. More information on Mazama pocket gophers can be obtained from the Thurston County Resource Stewardship Department website by going to www.thurstonprairiehcp.org, or by going to the U.S. Fish and Wildlife Mazama pocket gopher information page at https://www.fws.gov/wafwo/mpg.html.From the NRCS Soils Metadata: 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. 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 data set consists of georeferenced digital map data and computerized attribute data. The map data are in a soil survey area extent format and include a detailed, field verified inventory of soils and non soil areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. A special soil features layer (point and line features) is optional. This layer displays the location of features too small to delineate at the mapping scale, but they are large enough and contrasting enough to significantly influence use and management. 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.

本数据集为2007年3月版美国自然资源保护局（Natural Resources Conservation Service, NRCS）土壤数据集的子集，由瑟斯顿县开发服务局长期规划部门委托制作。本数据集用于识别可支撑囊鼠栖息地的土壤类型，服务于规划与保护相关工作。

瑟斯顿县规划部门关于囊鼠土壤的文本免责声明：本马扎马囊鼠（Mazama pocket gopher）土壤地图中展示的所有土壤，仅用于确定潜在适宜马扎马囊鼠及其栖息地的区域。本类土壤源自关于马扎马囊鼠名录认定的最终联邦法规，该法规存档于资源管理部门。本地图仅为筛查工具，用于识别可能存在马扎马囊鼠或其栖息地的区域，不得作为判定特定地块存在囊鼠或囊鼠栖息地的最终依据。马扎马囊鼠也可能分布于本地图未标注的区域。如需了解更多马扎马囊鼠相关信息，可访问瑟斯顿县资源管理部门官网www.thurstonprairiehcp.org，或访问美国鱼类及野生动物管理局马扎马囊鼠信息页面https://www.fws.gov/wafwo/mpg.html。

源自美国自然资源保护局土壤元数据：本数据集为数字化土壤调查成果，通常为全国合作土壤调查项目所开发的最高精度土壤地理数据。其制作方式包括：对地图进行数字化处理、将信息整合至平面校正底图后数字化，或结合遥感与其他信息修订数字化地图。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。
地图数据采用土壤调查区域范围格式，包含经实地验证的详细土壤与非土壤区域清单，这些区域在景观中以可重复的模式分布，且可按照成图比例尺进行制图表达。可选配特殊土壤要素图层（点与线要素），该图层用于展示在当前成图比例尺下无法单独勾绘但尺寸足够大、特征差异足够显著，足以对土地利用与管理产生显著影响的要素位置。
土壤制图单元与国家土壤信息系统（National Soil Information System, NSIS）关系型数据库中的属性相关联，该数据库可提供组分土壤的占比范围及其各项属性。