Vector Shapefiles Of The Rural-Urban Interface In Portugal Estimated For Different Periods (1990, 2000, 2006, 2012)

Vector shapefiles of the rural-urban interface (RUI) in Portugal estimated for different periods (1990, 2000, 2006, 2012). RUI was mapped considering the first and the second level hierarchy of CORINE Land Cover (CLC). A specific geospatial approach was designed to extract the area of intersection between a buffer around the artificial surfaces and the area resulting from the sum of the forest and semi natural areas plus the heterogeneous agricultural areas. We adopted a buffer width of 1 km, corresponding to two times the spatial resolution of CLC inventories. The field “code_yy” refers to CLC class level 3. More about the Corine Land Cover (CLC) programme and datasets can be found at http://www.eea.eu More about the the RUI maps elaboration can be found at: https://doi.org/10.5194/nhess-18-1-2018. Please, cite data and the related paper if you use them. (cite as: Tonini., M., Parente., J., Pereira., M., Global assessment of rural-urban interface in Portugal related to land cover changes; Nat. Hazards Earth Syst. Sci., 18, 1–18, 2018)葡萄牙不同时期（1990、2000、2006、2012年）城乡交错带（rural-urban interface, RUI）的矢量形状文件数据集。该城乡交错带的制图基于CORINE土地覆盖（CORINE Land Cover, CLC）的一级与二级层级体系。研究设计了专属地理空间方法，用于提取人工地表缓冲区与森林、半自然区域及非均质农业区域总面积的相交区域面积。本研究采用1千米的缓冲区宽度，该宽度为CLC调查空间分辨率的两倍。 字段"code_yy"对应CLC三级分类。有关CORINE土地覆盖（Corine Land Cover, CLC）计划及其数据集的更多信息，可访问http://www.eea.eu。 有关本城乡交错带地图编制方法的更多细节，可参阅https://doi.org/10.5194/nhess-18-1-2018。若使用本数据集，请一并引用相关论文，引用格式为：Tonini, M., Parente, J., Pereira, M., Global assessment of rural-urban interface in Portugal related to land cover changes; Nat. Hazards Earth Syst. Sci., 18, 1–18, 2018。