Assessing urban greening strategies as systemic solutions for social challenges of urbanization. Development of a conceptual evaluation framework and experimenting with using the example of edible cities in Germany.

城市面临着日益复杂的城市发展。因此，需要系统的解决办法，这些办法在执行工作很少的情况下就会对环境和人类产生重大影响。通过(城市周边)农业在城市中生产粮食可以被认为是一种基于自然的解决方案，为生物多样性、社会凝聚力或地方经济等城市化带来的社会挑战提供系统的解决方案。在城市中，可以发现不同类型的UPA的马赛克(例如，社区花园、垂直农业、社区支持的农业)。然而，关于不同类型的uPA的优缺点的知识仍然是支离破碎的。特别是，它缺乏对以技术和自然为基础的UPA支持城市可持续粮食生产的理解。在这一后续项目中，将改进以前为普遍定期审议制定的综合评估框架，以便系统地评估不同类型的普遍定期审议。评估将侧重于垂直农业，作为一种以技术为基础的联合农业类型，以及以社区为基础的农业，作为以自然为基础的联合农业的典型代表。综合评估将以多标准分析和包括生态、社会和经济评估各方面及其相应的生态系统服务的层次分析过程为基础。多标准分析和层次分析过程将通过文献回顾和在线专家调查(城市管理、非政府组织、从业人员)实施，并将德国不同居住密度和城市化程度的城市作为案例研究。后续项目为系统评价不同类型的uPA及其对城市可持续粮食生产的影响提供了科学基础。通过使用垂直农业和社区支持农业的例子测试框架，该项目还通过批判性地反映可持续UPA的创新战略，做出了相关的社会和城市规划贡献。

Cities are faced with an increasing complexity of urban development. Systemic solutions are therefore required which unfold with little implementation effort a substantial effect for environment and humans. The production of food in cities through (peri-)urban agriculture (UPA) can be considered a nature-based solution delivering systemic solutions for societal challenges of urbanization such as biodiversity, social cohesion or local economy. In cities a mosaic of different types of UPA can be found (e.g., community gardens, vertical farming, community-supported agriculture). However, knowledge about advantages and disadvantages of different UPA-types is still fragmented. In particular, it lacks an understanding in which regard technical and nature-based UPA supports a sustainable food production in cities. In this follow-up project the previously developed integrated assessment framework for UPA will be refined for systematically assessing different types of UPA. The evaluation will focus on vertical farming, as a technology-based type of UPA, and community-based agriculture exemplarily representing nature-based UPA. The integrated assessment will be based on a multicriteria analyses and an Analytical Hierarchy Process including ecological, social and economic assessment dimensions and its corresponding ecosystem services. The multicriteria analyses and Analytical Hierarchy Process will be implemented through a literature review and online expert surveys (urban administration, nongovernmental organisations, practitioners) and will include German cities of different settlement densities and urbanization degrees as case studies. The follow-up project provides scientific fundamentals for systematically evaluating different types of UPA and their impact on sustainable food production in cities. By testing the framework using the examples of vertical farming and community-supported agriculture, the project also makes socially and urban planning relevant contributions by critically reflecting innovative strategies for sustainable UPA.