The effects of climate change on rainfall in the Mediterranean region are manifested in an overall decreasing trend, and greater irregularity in annual volumes and the city of Alicante is no exception. In addition, there has also been a spread of the urbanised area, which has led to an increase in the flood risk in urban areas (due to a greater runoff and the occupation of flood hazard areas) and drought events due to an increase in the water demand. In light of these new scenarios, the Mediterranean cities should design adaptation systems based on rainwater harvesting within the framework of a circular economy. This study analyses the integration of rainwater in flood and water demand management in the city of Alicante (Southern Spain). In recent years, this city has developed infrastructures in order to use these resources. To do this, different databases have been analysed (rainfall and volume of water collected in the green infrastructure systems). The results reveal that stormwater has become highly important in urban water management in Alicante as the city is now using a resource that previously went to waste and created problems (flooding and pollution). By way of conclusion, it is worth mentioning that the incorporation of rainwater for urban use in Alicante has reduced the pressure on traditional resources in satisfying water demand and has also acted as a measure for adapting to climate change.

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城市雨水管理，适应气候变化的工具：从风险到资源

气候变化对地中海地区降雨量的影响总体呈下降趋势，年降水量不规则性更大，阿利坎特市也不例外。此外，还出现了城市化区域的蔓延，导致城市地区的洪水风险增加（由于径流较大，占用了洪灾危险区）和干旱事件的增加。需水量。鉴于这些新情景，地中海城市应在循环经济框架内设计基于雨水收集的适应系统。本研究分析了阿利坎特市（西班牙南部）雨水与洪水和水需求管理的整合。近年来，这座城市开发了基础设施以利用这些资源。去做这个，已经分析了不同的数据库（在绿色基础设施系统中收集的降雨量和水量）。结果表明，雨水在阿利坎特的城市水资源管理中变得非常重要，因为该市现在正在使用以前被浪费并造成问题（洪水和污染）的资源。最后，值得一提的是，阿利坎特将雨水纳入城市使用，减轻了传统资源满足用水需求的压力，也是适应气候变化的一项措施。结果表明，雨水在阿利坎特的城市水资源管理中变得非常重要，因为该市现在正在使用以前被浪费并造成问题（洪水和污染）的资源。最后，值得一提的是，阿利坎特将雨水纳入城市使用，减轻了传统资源满足用水需求的压力，也是适应气候变化的一项措施。结果表明，雨水在阿利坎特的城市水资源管理中变得非常重要，因为该市现在正在使用以前被浪费并造成问题（洪水和污染）的资源。最后，值得一提的是，阿利坎特将雨水纳入城市使用，减轻了传统资源满足用水需求的压力，也是适应气候变化的一项措施。