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)

葡萄牙城乡交错带（Rural-Urban Interface, RUI）的矢量形状文件（Vector Shapefiles）涵盖1990、2000、2006、2012四个时期的测算结果。本次RUI制图基于Corine土地覆盖（CORINE Land Cover, CLC）的一级与二级分类层级。研究设计了专属的地理空间分析方法，用于提取人工地表周边缓冲区与森林、半自然区域及混合型农业区域总面积的相交区域面积。本次研究采用的缓冲区宽度为1千米，对应CLC普查数据空间分辨率的两倍。
字段"code_yy"对应CLC的三级分类。如需了解更多Corine土地覆盖（CLC）项目及数据集的相关信息，可访问http://www.eea.eu。
如需了解更多RUI地图的编制细节，可访问：https://doi.org/10.5194/nhess-18-1-2018。若您使用本数据集，请同时引用相关数据与研究论文，引用格式如下：Tonini, M., Parente, J., Pereira, M. 与土地覆盖变化相关的葡萄牙城乡交错带全球评估[J]. 自然灾害与地球系统科学（Nat. Hazards Earth Syst. Sci.）, 2018, 18:1–18.