Mandatory Phosphate Mine Boundaries 2021

The Mandatory Phosphate Mine Boundaries layer contains the conceptual boundaries of all active mandatory phosphate mines within Florida in 2021. 'Mandatory Phosphate Mines' does not indicate that the area is required to be mined for phosphate; 'Mandatory' refers to the regulatory status of the land. Land mined for phosphate since July 1, 1975 is 'Mandatory,' and is required by Florida law to be reclaimed (contoured and re-vegetated). Land mined prior to July 1, 1975 was not required to be reclaimed. This layer provides the mine boundary for mines that are subject to the regulatory requirements of Chapter 378, Part III, F.S. and/or Chapter 373, Part IV. F.S. and Chapter 62C-16, F.A.C. Mandatory phosphate mining occurs primarily in the central Florida phosphate mining district in Polk, Hillsborough, Manatee, and Hardee counties and one mine in North Florida in Hamilton County. This layer was designed to provide the Mining and Mitigation Program with a graphical representation of the Mandatory Phosphate boundaries for planning and management purposes. Because this data is a work in progress, it may contain errors such as missing features, outdated features, overlapping features, erroneous status of features, variations in accuracy, or attribute errors. This layer was created and maintained by the Florida Department of Environmental Protection, Program Support.强制性磷酸盐矿边界图层（The Mandatory Phosphate Mine Boundaries layer）包含2021年佛罗里达州境内所有活跃强制性磷酸盐矿的概念性边界。“强制性磷酸盐矿”并非指该区域必须开展磷酸盐开采，其中“强制性”指代土地的监管属性。1975年7月1日起用于磷酸盐开采的土地属于“强制性”范畴，根据佛罗里达州法律，此类土地需完成复垦（包括地形修整与植被恢复）；1975年7月1日前开采的磷酸盐用地则无复垦义务。本图层为受《佛罗里达州法典》（F.S.）第378章第三部分、第373章第四部分以及《佛罗里达州行政法典》（F.A.C.）第62C-16章监管要求约束的矿山提供矿界信息。强制性磷酸盐开采活动主要集中于佛罗里达州中部的磷酸盐矿区，覆盖波尔克、希尔斯伯勒、马纳蒂及哈迪县，另有一处矿山位于佛罗里达州北部的汉密尔顿县。本图层旨在为矿业与缓减项目提供强制性磷酸盐矿边界的可视化展示，以支撑规划与管理工作。由于本数据仍处于开发完善阶段，可能存在要素缺失、信息过时、要素重叠、属性状态错误、精度偏差或属性字段错误等问题。本图层由佛罗里达州环境保护部项目支持办公室创建并维护。