Abstract The present paper concerns the assessment of biomass by-products from the urban greenery maintenance with an energy perspective. Usually pruning is not organized by a consolidated planning practice, mainly because of lack of information. After estimating the quantity of wood pruning by-products by means of dendrometric equations and the availability of information on current greenery management, an innovative GIS-based method was implemented and tested on Milan, in northern Italy. The main outcome is the quantification of the energy potential in terms of available wood biomass, displayed on a geo-referred urban map. Moreover, the outcomes of the research could support the administrations in improving the management of these materials otherwise wasted and therefore in converting public expenses for maintenance into public profits available for further investments. On the energy supply side, the GIS database could support the local matching between available renewable sources and energy supply systems in operation (i.e. local district heating and cogenerative systems), providing a low-range and cost-effective renewable resource, also enhancing circular economy at the local scale.

中文翻译：

---

城市绿化管理和能源规划：基于 GIS 的米兰市能源应用修剪副产品潜力评估

摘要 本文从能源角度对城市绿化维护中的生物质副产品进行评估。通常修剪不是由综合规划实践组织的，主要是因为缺乏信息。在通过树状方程和当前绿化管理信息的可用性估计木材修剪副产品的数量后，在意大利北部的米兰实施并测试了一种基于 GIS 的创新方法。主要结果是根据可用木材生物量对能源潜力进行量化，显示在地理参考城市地图上。而且，研究结果可以支持行政部门改进对这些材料的管理，否则会浪费掉，从而将公共维护费用转化为可用于进一步投资的公共利润。在能源供应方面，GIS 数据库可以支持可用可再生能源与运行中的能源供应系统（即当地区域供热和热电联产系统）之间的本地匹配，提供低范围和具有成本效益的可再生资源，也促进循环经济在局部范围内。