Soils Special Line Features_2025

This hosted feature layer has been published in RI State Plane Feet NAD 83. Special soil line features display locations of features too small to delineate at the mapping scale used by the Rhode Island Soil Survey Program, but they are large enough and contrasting enough to significantly influence use and management. The soil map units are linked to attributes (via the MUKEY attribute field) in the National Soil Information System relational database, which gives the proportionate extent of the component soils and their properties. Soils_2025 – Soil map unit polygons Soils Special Point Features_2025 – Special point features such as wet spots, bedrock outcrops, etc. Soils Special Line Features_2025– Special line features such as short steep slopes and escarpments 2025 RIGIS Soil Attribute Table (December 2025)本托管要素图层采用罗德岛州平面英尺坐标系（NAD 83）发布。特殊土壤线要素展示了罗德岛州土壤调查项目所用制图比例尺下无法精准勾绘，但尺寸足够大且对比度足够高，足以显著影响土壤利用与管理的要素位置。土壤制图单元通过国家土壤信息系统（National Soil Information System）关系型数据库中的MUKEY属性字段与属性信息关联，该数据库可提供组成土壤的占比范围及其各项属性。Soils_2025——土壤制图单元多边形要素；Soils Special Point Features_2025——特殊点要素，如湿地区域、基岩露头等；Soils Special Line Features_2025——特殊线要素，如短陡坡、悬崖等；2025年罗德岛州地理信息系统（RIGIS）土壤属性表（2025年12月）