Understanding and conceptualizing how urban green and blue infrastructure affects the food, water, and energy nexus: A synthesis of the literature
Understanding and conceptualizing how urban green and blue infrastructure affects the food, water, and energy nexus: A synthesis of the literature
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DOI：
10.1016/j.jclepro.2021.125825
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发表时间：
2021-01-11
影响因子：
11.1
通讯作者：
Seto, Karen C.
中科院分区：
文献类型：
--
作者：
Bellezoni, Rodrigo A.;Meng, Fanxin;Seto, Karen C.
食物、水和能源系统作为一个纽带（FWEN）的互动动态对全球城市的可持续发展至关重要，它们可以通过城市地区的绿色和蓝色基础设施（GBI）来调节。在这里，我们提供了一个全面的文献综述，研究GBI如何影响FWEN在城市中心，这是目前研究不足的领域。为了做到这一点，我们进行了系统的文献综述，采用荟萃分析方法和主题建模。基于我们的综合，我们开发了一个概念框架的关键联系之间的城市GBI和FWEN的方向和幅度的关系。我们发现，GBIs可以有利于粮食供应，节能和减缓气候变化，但以食品安全和水污染为代价。精心设计的城市建设可以帮助遏制负面影响。因此，我们需要制定深思熟虑的综合政策，将GBI与城市FWEN中的各个要素联系起来。此外，关于全球城市间气候变化、粮食安全和能源网络联系的研究重点也各不相同：城市农业和粮食安全是非洲和亚洲城市以及低收入和较大城市（但不是大都市地区）的优先事项，而绿色空间的降温效应则是中等或高收入城市的重点。最后，目前的研究主要集中在孤立的分析，缺乏决策支持工具所需的综合研究。虽然孤立的分析会导致连通性故障，并可能造成不利影响，但综合分析可以确定环境资源在一个循环的各个部分之间和不同规模之间的相互依存关系，这可以提高资源效率，最大限度地减少环境退化。因此，我们的主要研究结果指出了在研究和政策制定中将GBI对FWEN每个组成部分的影响联系起来的重要性。(c)2021爱思唯尔有限公司版权所有。
The interactive dynamics in the food, water, and energy system as a nexus (FWEN) are critical to the sustainable development of global cities, and they can be mediated by green and blue infrastructure (GBI) in the urban area. Here we provide a comprehensive literature review to examine how GBI affects FWEN in urban centers, an area which is currently understudied. In order to do this, we undertake a systematic review of the literature using a meta-analytic approach and topic modelling. Based on our synthesis, we develop a conceptual framework of the key links between urban GBI and FWEN and the direction and magnitude of the relationship. We found that GBIs can benefit food supply, energy saving, and climate change mitigation but at a price of food safety and water contamination. Well-designed urban construction can help curb the negative effects. Therefore, we need to make deliberate and integrative policy to link GBI with each element in urban FWEN. Moreover, the focus of studies on GBIFWEN links is also heterogeneous across cities: urban agriculture and food security are priorities in cities located in Africa and Asia as well as in lower income and larger cities (but not metropolitan areas), while the cooling effect of green space has been a focus for cities of middle or high income. Finally, current research focuses on isolated analysis, lacking integrated studies needed for decision making supporting tools. While isolated analyses lead to connectivity failures and can result in adverse impacts, integrated analyses can identify interdependencies of environmental resources between parts of a cycle and across different scales, which can increase resource efficiency and minimize environmental degradation. Therefore, our key findings point out the importance of linking the effects of GBI on each component of FWEN in both research and policy making.(c) 2021 Elsevier Ltd. All rights reserved.