3-低影响开发的基本原理BasicLIDprinciples(translated)精选.pptx

Basic Principles of Low Impact Development低影响开发的基本原理;What is Low Impact Development?什么是低影响开发;The Old Way传统方法;The New Way新方式;How does LID work?LID如何奏效？;Rainfall as a resource降雨是一种资源;Principles of Low Impact Development低影响开发的基本原理;Conventional Development;LID Development;Five Basic Tools of LIDLID的5个基础工具; Encourage Conservation Measures鼓励保护措施; Encourage Conservation Measures鼓励保护措施;;Reduce Impervious Area减少不透水区域;;;;Pollution Prevention污染预防;;;;Woodlands林地;;Wetlands湿地;Wetlands are sinks for pollutants 湿地是污染物的洗涤槽 Trap suspended solids 悬浮固体收集 Plants uptake nutrients for growth 植物吸收营养成长 Enable denitrification that releases nitrogen gas and oxygen 能够脱氮释放氮气和氧气 Recharge groundwater 补给地下水 Provide flood storage, attenuation of peak flows 提供洪水贮存，削弱水流峰值;Steep slopes陡峭山坡;;Hydrologic Soil Type A –Well Drained水文土壤类型A—排水良好型;;Soil Textural Classes土壤质地等级;;;;;;Wetlands, soils watershed boundaries湿地，土壤和流域边界;Slopes and vegetation山坡和植被;;;Developable area可开发地区;;;;Use multiple measures to reduce and clean runoff at the source (e.g., direct roof drains to flow over pervious areas, direct driveway runoff to bioretention filter instead of to the road) 用多种措施减少和净化在源头的径流（如屋顶直接排水流过透水区域，车道径流直接通往生态滞留过滤器取代道路） Remove pollutants from storm water (e.g., provide multiple treatment system in series to enhance removal of pollutants) 清除雨水中的污染物（如，提供多种处理系统系列来提高污染物清除率）;;If possible, use open conveyance systems such as strips and swales 可能的话，使用开放运输系统比如地带和洼地 Match pre-development infiltration capacity of the site 匹配开发前的场地前下身能力 Select the most appropriate stormwater controls to reduce the expected pollutant loads after development 选择最合适的雨水管理来降低开发之后的预期污染负荷;;Stormwater Discharge Points雨水排放点;;;;;;;;;Environmental benefits of LIDLID的环境益处;Benefits of LID to the publicLID的公共益处;;Basic Principles of Low Impact Development低影响开发的基本原理