Location potential of groundwater-dependent land ecosystems in Lower Saxony 1: 50 000 — Locations

The backdrop “Location potentials for groundwater-dependent land ecosystems” shows areas for the whole of Lower Saxony with the abiotic potential for the establishment of groundwater-dependent land ecosystems on a medium scale (1:50,000). Groundwater-dependent land ecosystems are an important place of life and retreat for rare and endangered animal and plant species. That is why groundwater-dependent land ecosystems are under special protection and must be taken into account in water law and planning procedures. The backdrop evaluates the abiotic location factors soil, groundwater, climate and land use, based on the soil history map on a scale of 1:50,000 (BK50), climate data from the German Weather Service (DWD) for the period 1971-2000 and the Digital Landscape Model 1: 25,000 (DLM25). The backdrop serves as an overview and presents all areas with a location potential regardless of whether or not a groundwater-dependent biotope has established itself on the designated sites. High bog sites are designated separately, as they ideally have their own bog water body. However, due to human intervention, a groundwater connection cannot be ruled out today, even high bog sites. In addition, the backdrop provides information on the protection status of the areas that are considered within a protected area as “sites valuable for nature conservation”. BUG, J., PLINKE, A-K., AFFELT, L. & HARDERS, D. (2021): Location potentials of groundwater-dependent land ecosystems (gwaLÖS) — Explanation on the setting and assessment of vulnerability. In: Georeports 43, Hannover.背景图层“依赖地下水的陆地生态系统区位潜力（Location potentials for groundwater-dependent land ecosystems）”展示了覆盖德国下萨克森州全域的区域，呈现了中等比例尺（1:5万）下，依赖地下水的陆地生态系统建立所需的非生物潜力分布。依赖地下水的陆地生态系统是珍稀濒危动植物重要的栖息与避难场所，因此受到特殊保护，需在水法与规划流程中予以考量。 该背景图层基于1:5万比例尺土壤历史图（BK50）、德国气象局（DWD）1971-2000年气候数据以及1:2.5万数字景观模型（DLM25），对土壤、地下水、气候与土地利用这几类非生物区位因子进行评估。本图层旨在提供概览信息，展示所有具备区位潜力的区域，无论指定地块上是否已形成依赖地下水的生境。 高位沼泽（high bog）地块被单独标注，因其理论上拥有独立的沼泽水体；但受人类活动干扰影响，如今即便高位沼泽地块也无法排除存在地下水连通性的可能。此外，本背景图层还会针对被归类为“自然保护价值站点”的保护区内区域，提供其保护现状相关信息。 BUG, J.、PLINKE, A-K.、AFFELT, L. 与HARDERS, D.（2021）：《依赖地下水的陆地生态系统区位潜力（gwaLÖS）——脆弱性设定与评估说明》，载于《Georeports 43》，汉诺威。