Map visualisation service (WMS) of the dataset: N_PERIMETRE_PPRN_20140186_S_032

Perimeter of the Plan for the Prevention of Natural Risks Withdrawal of the Argiles of the municipality of Belloc-Saint-Clamens in the department of Gers. This dataset contains the boundaries at the different stages of the development of the PPR. The characteristic of such perimeters is to be the consequence of an official act and to produce their effects from a defined date. This is the:- prescribed perimeter set out in the prescription order of a PPR;- perimeter of exposure to risks that corresponds to the perimeter regulated by the approved RPP, this approved perimeter is equivalent to utility easement;- study area which corresponds to the envelope in which the hazards were studied.热尔省（Gers）贝尔洛克-圣克莱曼斯（Belloc-Saint-Clamens）市镇黏土地块自然风险预防计划退界边界。本数据集收录自然风险预防计划（Plan for the Prevention of Natural Risks, 简称PPR）在不同开发阶段的边界范围。此类边界的核心属性为：其设立依据官方正式公文，且自明确指定日期起产生法律效力。具体包含以下三类边界：1. 自然风险预防计划审批令中载明的法定边界；2. 风险暴露边界，对应经核准的风险防护计划（RPP）所划定的管控边界，该经核准边界等同于公用役权；3. 研究区域，即开展灾害风险研究的覆盖范围。