Urban forests reduce a variety of health issues, such as respiratory diseases and skin cancer, and promote an active lifestyle, which can reduce obesity. While trees are working hard for air and water quality, they're also increasing property values, improving business performance and creating jobs. Trees are often left out of the discussion on urban green infrastructure, yet studies show they have a significant impact on water quality and quantity, in addition to their other benefits. Urban air pollution causes , deaths per year in the United States. Trees are a front-line of defense that have been shown to reduce both deaths and respiratory disease. The common perception that urban vegetation is associated with higher crime can be true, but well-maintained tree canopy can also reduce crime.
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(PDF) A Model for Urban Stormwater Improvement Conceptualisation | Tony Wong - le212.info
Environmental flow assessment frameworks have begun to consider changes to flow regimes resulting from land-use change. Urban stormwater runoff, which degrades streams through altered volume, pattern and quality of flow, presents a problem that challenges dominant approaches to stormwater and water resource management, and to environmental flow assessment. We used evidence of ecological response to different stormwater drainage systems to develop methods for input to environmental flow assessment. We identified the nature of hydrologic change resulting from conventional urban stormwater runoff, and the mechanisms by which such hydrologic change is prevented in streams where ecological condition has been protected.
Addressing Stormwater run-off problems through stormwater management at a local level.
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Understanding how to properly manage urban stormwater is a critical concern to civil and environmental engineers the world over. Mismanagement of stormwater and urban runoff results in flooding, erosion, and water quality problems. In an effort to develop better management techniques, engineers have come to rely on computer simulation and advanced mathematical modeling techniques to help plan and predict water system performance. This important book outlines a new method that uses probability tools to model how stormwater behaves and interacts in a combined- or single-system municipal water system. Complete with sample problems and case studies illustrating how concepts really work, the book presents a cost-effective, easy-to-master approach to analytical modeling of stormwater management systems.