Mandatory Phosphate Mined Units 2021

The Mandatory Phosphate Mined Units layer contains the conceptual mined areas 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 Because this data is a work in progress, it may contain errors such as missing features, outdated features, overlapping features, erroneous status of features, variations in accuracy, or attribute errors.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.强制磷矿开采单元图层（Mandatory Phosphate Mined Units layer）包含2021年佛罗里达州境内所有活跃的强制磷矿的概念性开采区域。 “强制磷矿（Mandatory Phosphate Mines）”并非指该区域必须开采磷矿；此处的“强制”特指土地的监管属性。1975年7月1日起用于磷矿开采的土地属于“强制监管范畴”，根据佛罗里达州法律，此类土地需完成复垦（包括地形重塑与植被恢复）。1975年7月1日之前开采的磷矿用地则无复垦要求。 本图层为受《佛罗里达法规》（F.S.）第378章第三部分、第373章第四部分以及《佛罗里达行政法典》（F.A.C.）第62C-16章监管要求约束的矿山提供矿界范围信息。强制磷矿开采活动主要分布于佛罗里达州中部的磷矿开采区，涉及波尔克、希尔斯伯勒、马纳蒂以及哈迪县，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解计划（Mining and Mitigation Program）提供强制磷矿边界的可视化展示，以服务于规划与管理工作。由于本数据集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、要素状态错误、精度偏差以及属性错误等问题。 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。