Catchment area intended for the AEP and protection areas of these areas of the Alpes de Haute-Provence

Geographical areas delimited by the public authorities to ensure the protection of abstractions (whether or not land) intended for the supply of drinking water to the population. In response to the requirements of the Water Framework Directive, the Water and Aquatic Environments Act of 30/12/06 strengthened the control mechanisms for diffuse pollution of agricultural origin by creating protection zones for catchment feeding areas. The implementation of this new resource protection system leads to the delineation of catchment foraging areas (AAFCs, sometimes also referred to as catchment feeding basins or LACs) that include AAFC protection areas. For surface water abstraction, the AAFC is the sub-watershed located upstream of the intake. For groundwater, a common national AAFC delineation methodology has been proposed. At the right of the methodological guide produced, the supply basin of an underground catchment is defined as the location of the points on the surface of the soil that contribute to the feeding of the catchment. Some catchment foraging areas are identified as priorities within the Water Management and Management Master Plans (WMPs) and measurement programs. A AAFC is thus defined, after a technical study, as the area from which the water supplies a close catchment or several catchments. The AAFC Protected Area is the result of the intersection of mapping zoning of intrinsic vulnerability and zoning of agricultural pressures. In the case of surface water abstractions, the definition of a protection zone within the watershed upstream of the intakes is based on the identification of flows (slide, drainage, ditches, alluvial and river exchanges) and the identification, by territorial diagnosis, of agricultural pressures and areas likely to play the most important role in the degradation of the water resource. An AAFC Protection Area is thus defined by regulation, for an AAFC that includes one or more catchments, as a perimeter of actions to protect the drinking water resource from identified environmental issues.由公共主管部门划定的地理区域，旨在保护用于向居民供应饮用水的各类取水水源（含陆地取水）。为响应《水框架指令》（Water Framework Directive）的要求，2006年12月30日颁布的《水与水生环境法》（Water and Aquatic Environments Act）通过设立集水补给区保护区，强化了农业源面污染的管控机制。该新型水源保护体系的实施，推动了集水补给区（catchment foraging areas，缩写AAFC，亦称集水补给盆地或LACs）的划定，此类区域涵盖AAFC保护区。针对地表水取水而言，AAFC即为取水口上游的子流域；针对地下水取水，目前已提出通用的国家级AAFC划定方法。在所编制的方法指南中，地下取水的补给盆地被定义为：土壤表层中可为该取水设施提供补给的所有点位所在的区域。部分集水补给区被纳入水资源管理总体规划（Water Management and Management Master Plans，缩写WMPs）及监测项目的优先保护名录。经技术研究后，AAFC可被定义为：可为一处或多处相邻取水设施提供水源补给的区域。 AAFC保护区是固有脆弱性制图分区与农业压力分区的叠加区域。针对地表水取水场景，取水口上游流域内保护区的划定，需基于对各类径流（包括坡面滑坡径流、排水渠径流、沟渠径流、冲积层与河道水体交换）的识别，以及通过区域诊断明确的农业压力源与可能对水资源退化造成显著影响的区域。因此，针对包含一处或多处取水设施的AAFC，AAFC保护区可通过法规形式划定，作为针对已识别环境问题开展饮用水水源保护行动的管控范围。