Luzerne County soils 2014

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 nonsoil 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.

This data is hosted at, and may be downloaded or accessed from PASDA, the Pennsylvania Spatial Data Access Geospatial Data Clearinghouse http://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=186

本数据集为数字化土壤调查成果，总体上属于美国国家协作土壤调查局（National Cooperative Soil Survey）所编制的最精细级别的土壤地理数据。该数据集的制作方式包括：对地图进行数字化处理、将信息整合至平面校正基准后开展数字化作业，或是借助遥感及其他信息对已数字化的地图进行修订完善。
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存储，包含经野外验证的详尽土壤与非土壤区域名录——这些区域在景观中通常呈现可重复出现的分布格局，且可按照成图比例尺进行制图表达。可选配置专项土壤要素图层（点、线要素）：该图层可展示那些在成图比例尺下难以勾绘，但尺寸与对比度均足以显著影响土壤利用与管理的要素位置。土壤制图单元与国家土壤信息系统（National Soil Information System）关系型数据库中的属性字段相关联，该数据库可提供各组成土壤的占比范围及其理化属性。
本数据集托管于宾夕法尼亚空间数据访问地理空间数据交换所（PASDA），可通过以下网址下载或访问：http://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=186