Carpinus betulus chorology

Distribution map of common hornbeam (<i>Carpinus betulus</i>)<br><br>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 geodatabases and scientific literature.<br>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”).<br>All polygon borders delimiting the range are generalized across the mainland and sea boundaries, and not clipped to a specific coastline. 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. <br><br>Please cite as:<br>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.2017.05.007 <br><br>Additional information and used references are on 'supplementary materials' document:<br>https://doi.org/10.6084/m9.figshare.5091901<br><br>Chorological maps are part of the "European Atlas of Forest Tree Species" project:<br>https://w3id.org/mtv/FISE-Comm/v01

欧洲鹅耳枥（*Carpinus betulus*）的分布地图

本数据集的分布图系整合多源异构数据制作而成，数据来源涵盖完整呈现物种分布地图的图集专著（覆盖国家级至区域级图集）、物种出现点地理数据库以及科学文献。

本数据集以ZIP压缩包存档，内含ESRI形状文件（ESRI shapefiles，包含*.shp、*.shx、*.dbf、*.prj格式文件）。分布图通过两类要素表征物种分布范围：多边形要素（文件名后缀“plg”）用于界定物种持续栖息的连续区域，点要素（文件名后缀“pnt”）用于标识更为破碎、孤立的种群。若存在伴人生境下的物种出现记录超出其自然分布范围的情况，则会附带额外的点/多边形形状文件（后缀“syn”）。

所有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，并未裁剪至特定海岸线。该处理方式允许使用者根据自身需求，通过地理信息系统（GIS）数据图层掩膜海洋区域，或裁剪提取陆地分布范围的对应部分。

引用格式如下：
Caudullo, G., Welk, E., San-Miguel-Ayanz, J., 2017. 欧洲主要木本物种的分布区地图（Chorological maps）. 《数据简报（Data in Brief）》12, 662-666. DOI: doi.org/10.1016/j.dib.2017.05.007

更多信息及所用参考文献详见“补充材料”文档：https://doi.org/10.6084/m9.figshare.5091901

本分布区地图为“欧洲森林树种地图集（European Atlas of Forest Tree Species）”项目的组成部分：https://w3id.org/mtv/FISE-Comm/v01