Urban


Volunteered information on nature-based solutions — Dredging for data on deculverting

Submitted by Stavros Stagakis on April 19, 2019 - 10:41am
Much has been written about the potential contribution of citizen-science approaches to further urban environmental sustainability, and associated interventions such as nature-based solutions (NBS). Engagements between researchers and stakeholders relying on bottom-up information provision, for instance community mapping, are often purported to play a vital role in developing shared knowledge, achieving greater impact and stimulating innovation. However, relatively few studies within the realm of NBS have reported on experiences in using volunteered information, or their results.

Species-specific synergistic effects of two plant growth—promoting microbes on green roof plant biomass and photosynthetic efficiency

Submitted by Marja Mesimäki on January 9, 2019 - 1:38pm
Rhizophagus irregularis, an arbuscular mycorrhizal fungus, and Bacillus amyloliquefaciens, a bacterium, are microorganisms that promote plant growth. They associate with plant roots and facilitate nutrient absorption by their hosts, increase resistance against pathogens and pests, and regulate plant growth through phytohormones. In this study, eight local plant species in Finland (Antennaria dioica, Campanula rotundifolia, Fragaria vesca, Geranium sanguineum, Lotus corniculatus, Thymus serpyllum, Trifolium repens, and Viola tricolor) were inoculated with R. irregularis and/or B.

Neo-spaces for urban livability? Urbanites' versatile mental images of green roofs in the Helsinki metropolitan area, Finland

Submitted by Marja Mesimäki on December 10, 2018 - 4:11pm
Within the context of enhancing sustainable and livable urban environments, one aim is to establish multifunctional green infrastructure (GI). We argue that in order to successfully plan and manage the development of GI, an inclusive and future-oriented stance concerning the needs and expectations of urbanites is required. By using green roofs as an example, the aim of this paper was to offer insights into how people envisage novel GI in urban environments and to reveal the scope of meanings and values people attach to these kinds of green infrastructure.

Do small green roofs have the possibility to offer recreational and experiential benefits in a dense urban area? A case study in Helsinki, Finland.

Submitted by Marja Mesimäki on December 10, 2018 - 3:55pm
Growing and densifying cities set challenges for preserving and enhancing sufficient and good quality green urban environment. Rooftops offer vacant room for additional urban greening that may contribute to the well-being of people and the liveability of cities, but this potential lacks empirical support. In spite of the fact that even small green spaces produce, for example restorative experiences, the literature concerning the experiential and recreational benefits of green roofs is still scarce.

Building Urban Resilience with Nature - A Practitioner's Guide to Action

Submitted by Eleni Goni on November 30, 2018 - 3:53pm
Recognizing that the value and role of nature was missing from mainstream planning and decision-making processes, Earth Economics and Resilient Melbourne took up the challenge of creating a practitioner resource for all those who are determined to take concrete steps to bridging the gap between the need to value nature, and political and financial will in policy and capital investments.

URBANFLUXES: Heat produced in our cities is affecting human mortality

Cities are much warmer than their surroundings. Urban structures absorb and trap more solar and thermal radiation than soils or vegetation and that causes an increase in the urban temperature. Moreover, many human activities add heat to the urban climate. The heating and the cooling of buildings, the traffic, various industrial activities and our own human metabolism release energy in the form of heat, called anthropogenic heat.