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首页> 外文期刊>Sustainability >Local Level Stormwater Harvesting and Reuse: A Practical Solution to the Water Security Challenges Faced by Urban Trees
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Local Level Stormwater Harvesting and Reuse: A Practical Solution to the Water Security Challenges Faced by Urban Trees

机译：地方一级的雨水收集和再利用：应对城市树木面临的水安全挑战的实用解决方案

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摘要

Water Sensitive Urban Design (WSUD) treatment devices are often used to restore natural drainage properties in developed catchments. WSUD can make positive contributions to the restoration of natural ecosystem processes, by supporting trees and habitats in urban areas without taking up limited urban space. This paper reports on the development and testing of a new WSUD device, the Wicking Tank. It is designed to supply sufficient volumes of water to urban trees through periods of drought via synthetic wicks from an underground storage tank to support adequate tree health. Relying on gravity fed stormwater, and the natural capillarity, adhesion, and cohesion properties of water and the process of hydraulic redistribution, water is transferred from the tank and into the rhizosphere of the tree. Water demand is controlled passively by the water potential differential across the root zone. Proof of concept testing of the Wicking Tank has shown the device to successfully draw water into soil to support the ongoing survival of a potted plant for over 20 weeks. Substantial differences are anticipated between this proof of concept test and an in-situ field trial. A field-based demonstration style version of the Wicking Tank is planned for construction and testing in 2015.
机译：水敏感城市设计（WSUD）处理设备通常用于恢复发达流域的自然排水特性。 WSUD可以通过在不占用有限城市空间的情况下支持城市地区的树木和栖息地，为恢复自然生态系统过程做出积极贡献。本文报告了新的WSUD设备Wicking Tank的开发和测试。它旨在通过干旱时期的地下储水罐中的合成灯芯为城市树木提供足够的水量，以支持树木的健康。依靠重力注入的雨水，水的自然毛细作用，附着力和内聚力以及水力重新分配的过程，水从水箱转移到树的根际。根部区域的水势差可被动地控制需水量。芯吸池的概念验证测试表明，该设备可成功将水吸到土壤中，以支持盆栽植物持续生存20多个星期。预计该概念验证测试与现场实地测试之间会有很大差异。计划在2015年建造和测试基于实地的示威风格版本的“威克坦克”。

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