N_PERIMETRE_PPRN_20140376_S_032

Perimeter of the Natural Risk Prevention Plan Withdrawal of the Argiles of the municipality of Larroque-Saint-Sernin in the Gers department. This dataset contains the boundaries at the different stages of the development of the RPP. The characteristic of these perimeters is to be the consequence of an official act and to produce their effects from a specified date. This is the:- prescribed perimeter set out in a PPR’s prescription order;- risk exposure perimeter that corresponds to the perimeter regulated by the approved RPP, this approved perimeter is a utility easement;- study scope that corresponds to the envelope in which the hazards were studied.法国热尔省拉罗克-圣-塞尔南市黏土层自然风险防控计划（Natural Risk Prevention Plan）撤销相关边界数据集。 本数据集收录了该计划编制各阶段对应的边界范围。此类边界的核心特征为：均以官方正式公文为依据，并自指定生效日期起产生法律效力。具体包含以下三类边界：一是法定划定边界，即RPP命令中明确载明的法定边界；二是风险暴露边界，对应经批准的RPP所规制的风险覆盖边界，该经批准的边界属于公用役地（utility easement）范畴；三是研究范围边界，即开展灾害风险研究所覆盖的空间范围。