uncut low-traffic spaces (UZVR)

The uncirculated low-traffic spaces (UZVR) were calculated for Saxony for the first time using the method of the federal uniform indicator landscape cutting (LIKI/UMK indicator 10) developed by the Länder Initiative Core Indicators (LIKI/UMK indicator 10). The data are the result of the LfULG study on landscape cutting (https://publikationen.sachsen.de/bdb/artikel/13820). The following are considered as anthropogenic cutting elements with relevance for Saxony: Roads from a modeled traffic strength of 1000 vehicles/24 h (BAB, federal and state roads, district roads), two-track railway lines and single-track electrified, in operation, local locations, airports. For roads and railway lines, tunnels from 1 000 m in length are considered to be interrupted (“cutting”). All UZVRs are included from a minimum size of 40 km². The UZVRs are in the size classes: 40-70 km², 70-100 km² and 100 km² shown. Highlights are UZVR with particularly high nature conservation value for species and biotope protection as well as landscape-related recreation. They meet at least one of the following criteria: UZVR has a national park share, UZVR has a nature park share, UZVR has a biosphere reserve share, FFH share & 20 %, SPA share & 20 %, NSG share & 8 % or LSG share & 70 %.本研究首次针对萨克森州，采用由各州核心指标倡议（Länder Initiative Core Indicators）制定的联邦统一景观切割指标（LIKI/UMK indicator 10）方法，计算得到低流量非通行空间（Uncirculated Low-Traffic Spaces，缩写UZVR）。本数据集为萨克森州环境、农业与地质局（LfULG）开展的景观切割研究成果（https://publikationen.sachsen.de/bdb/artikel/13820）。针对萨克森州，以下要素被认定为具有研究意义的人为景观切割要素：模拟交通强度达1000辆/24小时的道路（德国联邦高速公路BAB、联邦级与州级道路、区级道路）、双线铁路线路、运营中的单线电气化铁路、本地聚居点以及机场。对于道路与铁路线路，长度不小于1000米的隧道将被视为切割中断段。所有面积不小于40平方千米的UZVR均被纳入本数据集。UZVR共分为以下面积等级：40-70平方千米、70-100平方千米以及≥100平方千米。本数据集的核心亮点为具备极高物种与生境保护价值以及景观休闲价值的UZVR。此类UZVR需至少满足以下任一标准：包含国家公园区域、包含自然公园区域、包含生物圈保护区区域、FFH（物种-栖息地指令，Fauna-Flora-Habitat Directive）占比≥20%、SPA（特别保护区域，Special Protection Area）占比≥20%、NSG（自然保护区，Naturschutzgebiet）占比≥8%，或LSG（景观保护区域，Landschaftsschutzgebiet）占比≥70%。