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首页> 外文期刊>International Journal of Environmental Research and Public Health >Cool Communities—Urban Density, Trees, and Health
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Cool Communities—Urban Density, Trees, and Health

机译：凉爽的社区—城市密度，树木和健康

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A move towards more compact and climate-resilient cities is being encouraged around the world. As part of these plans, there is a need to manage the potential conflict between increasing urban densities and the extent of tree canopy in cities. Reductions in tree canopy are a major contributor to the urban heat island (UHI) effect, which will act to reduce rather than increase climate resilience in many cities. A systems thinking approach called Collaborative Conceptual Modelling was used to study the interaction between urban infill, tree canopy, and human health in Perth, Australia. The results indicated that under current planning policies and development practices, the behaviour of the system is dominated by the drive towards higher housing densities. While this may result in the attainment of urban infill targets, it is likely to lead to a reduction in tree canopy, higher temperatures, and a decrease in a range of other benefits provided by trees. Recommended actions to overcome this behaviour were determined by the identification of leverage points in the system. These included a shift to a sustainable development paradigm that places greater value on the environmental and social benefits provided by trees and a greater emphasis on a climate-resilient future. Market and legislative mechanisms should be integrated into the city’s greening strategy and development plans to ensure the protection of existing trees and the inclusion of new trees on public and private land.
机译：在世界范围内，鼓励朝着更紧凑，更耐气候的城市发展。作为这些计划的一部分，有必要管理不断增加的城市密度与城市中树冠的范围之间的潜在冲突。减少树冠是造成城市热岛效应的主要因素，在许多城市中，这种效应将减少而不是增加气候适应能力。在澳大利亚珀斯，一种名为协作概念模型的系统思维方法被用于研究城市填充物，树冠和人类健康之间的相互作用。结果表明，在当前的规划政策和开发实践下，系统的行为主要由朝向更高住房密度的驱动力主导。虽然这可能会导致达到城市填充目标，但可能会导致树木冠层减少，温度升高，以及树木提供的其他好处减少。通过识别系统中的杠杆点来确定克服此行为的建议措施。其中包括向可持续发展范式的转变，该范式更加重视树木提供的环境和社会效益，并更加重视具有气候适应力的未来。市场和立法机制应纳入城市的绿化战略和发展计划中，以确保保护现有树木并在公共和私人土地上纳入新树木。

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