An Analytic Study on the Effects of Alternative Green Roof Strategies and Measures in Cities
Date Issued
2009
Date
2009
Author(s)
Chen, Ching-An
Abstract
Green roof systems have many functions to save urban micro climates and ecosystems. Besides, traditional construction practices provide little opportunity for environmental remediation to occur in urban areas. As concerns for environmental improvement in urban areas become more prevalent, innovative practices which create ecosystem services and ecologically functional land cover in cities will be in higher demand. Green roofs are a prime example of one of these practices. The past decade has seen the North American green roof industry rapidly expand through international green roof conferences, demonstration sites, case studies, and scientific research. In Taiwan, we are just in the first step and lack of experiences. This study first tries to compares and evaluates the existing European and North American green roof policies and strategies at the federal, municipal, and community levels. Green roof policies and strategies fall into a number of general categories, including direct and indirect regulation, direct and indirect financial incentives, and funding of demonstration or research projects. Advantages and disadvantages of each category are discussed. Salient features and a list of prompting standards common to strategically implemented green roof systems are then distilled from these existing policies. Secondly, the analytical study is carried out by combining these features with estimated data collected from a municipal case study in Taiwan, the planning and regulatory framework for widespread green roof infrastructure can be developed and discussed. Finally, the conclusion of this study shows that green roof systems for CO2 fixation and stormwater management seem not a strong effect in a compact city like Taipei except that we revise the current local urban regulation such as zoning, green building code, etc. in Taiwan to confront global change and climate warming. However, it can directly offer environmental functions of roofs and promote indirectly low-energy consumption of buildings. It also shows that It''s show that green roofs policy must combine other environment strategy. It will make urban environment better.
Subjects
green roof
environmental policy
ecosystem services
climate change
city-owned public building
Type
thesis
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