Quercus pubescens chorology

Distribution map of downy oak (<i>Quercus pubescens</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 geo-databases, scientific and grey 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>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). <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

柔毛栎（Quercus pubescens）分布图谱

本图谱通过整合多源异构数据制作而成，数据来源涵盖提供完整物种分布图谱的国家级至区域级地图集专著、物种出现点地理数据库、学术文献及灰色文献。
本数据集以ZIP压缩包归档的ESRI形状文件（*.shp、*.shx、*.dbf、*.prj）制作而成。物种分布范围通过两类要素进行可视化：一是以多边形要素（文件名后缀"plg"）表征物种持续占据的连续分布区域，二是以点要素（文件名后缀"pnt"）标识更为破碎孤立的种群。若存在物种在自然分布区外的人为伴生出现记录，还将附带后缀为"syn"的点/多边形形状文件。
划定物种分布范围的多边形边界已针对陆地与海域边界进行概化处理，支持用户通过自选GIS数据图层掩膜海域范围，或裁剪提取陆地区域的分布范围。此外还提供经海岸线裁剪的多边形范围版本（文件名后缀"clip"），该版本数据源自Natural Earth数据集"Admin 0 - Countries"1:50M 4.1.0版（https://www.naturalearthdata.com）。

引用格式如下：
Caudullo, G., Welk, E., San-Miguel-Ayanz, J., 2017. 欧洲主要木本植物物种分布图谱. 数据简报(Data in Brief) 12, 662-666. DOI: doi.org/10.1016/j.dib.2017.05.007

更多相关信息及参考文献详见补充材料文档：https://doi.org/10.6084/m9.figshare.5091901

本分布图谱属于"欧洲林木树种地图集"项目的组成部分：https://w3id.org/mtv/FISE-Comm/v01