Land depression based imprints of historic steppe habitats in the Seewinkel region, Austria

Description Pannonic salt steppes and salt marshes (EUNIS code 1530) or 'Sodapans' are among the rarest habitat types in Europe. They have historically been common in the Seewinkel region of Burgenland, Austria. Because of centuries of human modification of the landscapes only few Sodapans remain to this date. However 'imprints' of historic habitat extent can still persist and be visible from high-resolution digital terrain models (DTMs). Knowledge of such original extents can be useful particular in the context of habitat restoration and specifically rewetting, although many of known sites have been lost since centuries and might not be restorable.In this upload a characteriziation of small-scale depressions in a high-resolution DTM are made through a flood-fill algorithm (following an approach by Wu et al. 2019), cleaned and pre-processed to a spatial vector format. The result is presented in vector format containing small-scale depressions that might (!) indicate historic distribution of Sodapans in the Seewinkel. Data:Derived from a Digital Elevation Model (DTM) obtained from the Austrian state of Burgenland (released under CC-BY 4.0), created from a 5 m (source).Format:Spatial GeoPackage (similar as shapefile). Can be opened in most Geographic Information System software such as QGIS or ArcGIS. Data columns are included that describe a unique id for each identified patch, the indicated area (in m²) and summary statistics (min, max, median, mean) of the local depression depth relative to the surroundings. Usage notes: The dataset shows localized terrain depressions which might inidcate a historical or current sodapan. However the landscape in the Seewinkel has been heavily modified since centuries and even terrain imprints are not necessarily an indicator of any natural feature. Care should thus be taken when using this dataset for further analysis. The author takes no responsibility for errors or misrepresentations. The data is released as such, although further improvements and updates are possible. Terrain depressions smaller than 5000 m² have been ignored. Some land depressions likely related to construction activities (e.g. building of houses) or artifical water surfaces or sand pits have been manually removed. The data is released under a CC-BY 4.0 license. The creation of this data was supported by the INSPIRE project funded under the BiodivERsA BiodivProtect call. When using this dataset, please refer to this repository: Jung, M. (2025). Land depression based imprints of historic steppe habitats in the Seewinkel region, Austria (1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.16790524数据集描述 潘诺尼亚盐质草原与盐沼（EUNIS编码1530），俗称“Sodapans”，是欧洲最为珍稀的生境类型之一。历史上，它们广泛分布于奥地利布尔根兰州的塞温克尔（Seewinkel）地区。历经数个世纪的人类景观改造，时至今日留存的Sodapans已屈指可数。不过，历史生境范围的“印记”仍可通过高分辨率数字地形模型（Digital Terrain Model, DTM）得以识别与呈现。此类原始生境范围的相关信息，在生境修复尤其是补水修复工作中具有重要应用价值，尽管多数已知生境已消失数百年，或许已无法恢复。 本次上传的数据集，通过泛洪填充算法（遵循Wu等人2019年提出的方法）对高分辨率DTM中的小型洼地开展特征提取，经清洗与预处理后转换为空间矢量格式。最终结果以矢量格式呈现，其中包含的小型洼地可能指示塞温克尔地区历史上Sodapans的分布。 数据来源： 本数据源自奥地利布尔根兰州提供的数字高程模型（Digital Elevation Model, DTM）（采用CC-BY 4.0协议发布），原始分辨率为5米。 数据格式： 采用空间地理包（Spatial GeoPackage，与形状文件兼容）格式，可在QGIS、ArcGIS等多数地理信息系统软件中打开。数据字段包含每个识别斑块的唯一ID、斑块面积（单位：平方米），以及相对于周边地形的局部洼地深度的统计摘要（最小值、最大值、中位数、均值）。 使用说明： 本数据集展示的局部地形洼地，可能指示历史或现存的Sodapan生境。但塞温克尔地区的景观已历经数百年的剧烈改造，即便地形印记也未必对应自然生境特征。因此在使用该数据集开展进一步分析时需格外谨慎。作者不对数据的错误或误表征承担任何责任，本数据按现状发布，后续仍可能进行改进与更新。 本数据集已忽略面积小于5000平方米的地形洼地。部分与建筑活动（如房屋建造）、人工水面或沙坑相关的洼地已被手动移除。 本数据集采用CC-BY 4.0协议发布。本数据的制作得到了由BiodivERsA BiodivProtect项目资助的INSPIRE项目支持。 若使用本数据集，请参考如下引用： Jung, M. (2025). 基于地形洼地的奥地利塞温克尔地区历史草原生境印记 (1.0) [数据集]. Zenodo. https://doi.org/10.5281/zenodo.16790524