Cedrus atlantica chorology

Distribution map of Atlas cedar (Cedrus atlantica)These maps were produced by combining numerous and heterogeneous data collected from atlas monographs providing complete species distribution maps, from national to regional atlases, occurrence geo-databases, scientific and grey literature.The maps were created using ESRI shapefiles (*.shp, *.shx, *.dbf, *.prj files) archived in the ZIP file. Species range is mapped with polygon features (name suffix "plg"), which define continuous areas of occupancy of the species, and with point features (name suffix "pnt"), which identify more fragmented and isolated populations. If synanthropic occurrences are reported outside the species natural range, additional point and/or polygon shapefiles are also present (suffix "syn").Polygon borders delimiting species ranges are generalized across the mainland and sea boundaries. This offers the possibility to mask sea areas or to clip and extract the terrestrial range parts using GIS data layers of the users' choice. An additional version of polygon ranges are clipped with a coastline (name suffix "clip"), which have been derived from Natural Earth dataset "Admin 0 - Countries" 1:50M version 4.1.0 (https://www.naturalearthdata.com)Please cite as:Caudullo, G., Welk, E., San-Miguel-Ayanz, J., 2017. Chorological maps for the main European woody species. Data in Brief 12, 662-666. DOI: doi.org/10.1016/j.dib.2017.05.007Additional information and used references are on 'supplementary materials' document:https://doi.org/10.6084/m9.figshare.5091901Chorological maps are part of the "European Atlas of Forest Tree Species" project:https://w3id.org/mtv/FISE-Comm/v01大西洋雪松（Cedrus atlantica）分布范围图。本数据集的分布图集通过整合多源异质数据制作而成，这些数据涵盖从国家级到区域级的各类植物志图集（此类图集均提供完整的物种分布地图）、物种出现点地理数据库、学术文献与灰色文献。本图集以ESRI形状文件（ESRI shapefiles，包含*.shp、*.shx、*.dbf、*.prj四类文件）格式制作，并打包存储于ZIP压缩文件中。物种分布范围通过两类要素进行标注：一类为多边形要素（文件名后缀为“plg”），用于表征物种连续分布的栖息区域；另一类为点要素（文件名后缀为“pnt”），用于标识更为破碎、孤立的种群。若存在报道于物种自然分布区外的人为伴生出现记录，则会附带额外的点或多边形形状文件（文件后缀为“syn”）。用于界定物种分布范围的多边形边界已针对陆地与海洋边界进行了概化处理，使用者可通过自行选用的地理信息系统（Geographic Information System, GIS）数据图层，实现海洋区域掩膜、裁剪或提取陆地分布范围片段的操作。此外，本数据集还提供了经海岸线裁剪后的多边形范围版本（文件名后缀为“clip”），该版本的数据源自Natural Earth数据集“Admin 0 - Countries” 1:50M 4.1.0版本（https://www.naturalearthdata.com）。引用方式如下：Caudullo, G., Welk, E., San-Miguel-Ayanz, J., 2017. 《欧洲主要木本植物物种分布区划图》，载于《数据简报》（Data in Brief）第12卷，第662-666页。DOI: doi.org/10.1016/j.dib.2017.05.007。更多详细信息及参考文献可查阅补充材料文档：https://doi.org/10.6084/m9.figshare.5091901。本分布区划图集为“欧洲森林树种图集”（European Atlas of Forest Tree Species）项目的组成部分：https://w3id.org/mtv/FISE-Comm/v01