极端降水灾害脆弱性评估数据集（2019）

34个关键节点百米级脆弱性评估数据集评估了“一带一路”重点区域在极端降水事件下的洪涝灾害危险性，为当地政府部门决策提供依据，同时以便在洪涝灾害发生前进行预警，从而可以争取到宝贵的时间采取防灾减灾措施，降低洪涝灾害所带来的人民群众生命财产损失。此数据集以“一带一路”34个关键节点的GDP、人口、土地利用、路网、河网数据为基础，结合ArcGIS中的空间分析方法，赋予各指标相应的权重，构建评估了34个关键节点在极端降水条件下发生洪涝灾害的脆弱性，并用自然断点法将脆弱性分为5个等级，分别代表无脆弱性，低脆弱性，中脆弱性，高脆弱性，极高脆弱性。

The 100-meter-scale vulnerability assessment dataset involving 34 key nodes evaluates flood disaster risks in key regions along the Belt and Road Initiative under extreme precipitation events. It offers decision-making support for local governmental authorities, enables early warnings prior to flood disasters, thereby securing valuable time to implement disaster prevention and mitigation measures, and ultimately reduces the loss of lives and property of local residents caused by flood disasters. This dataset is built upon GDP, population, land use, road network and river network data of the 34 key nodes along the Belt and Road Initiative. By adopting spatial analysis methods in ArcGIS and assigning appropriate weights to each indicator, it constructs and assesses the flood vulnerability of the 34 key nodes under extreme precipitation conditions. The Jenks Natural Breaks Classification method is then utilized to divide the vulnerability into five levels, namely no vulnerability, low vulnerability, moderate vulnerability, high vulnerability and extreme vulnerability.