Guidelines for Estimating Unmetered Landscaping Water Use

McMordie Stoughton, Kate

关键词: AUDITS;    IRRIGATION;    LANDSCAPING;    RECOMMENDATIONS;    WATER USE;    FORECASTING;    EVAPORATION;    TRANSPIRATION;    CALCULATION METHODS;   

DOI  :  10.2172/985008
RP-ID  :  PNNL-19498
PID  :  OSTI ID: 985008
Others  :  Other: EL1703010
Others  :  TRN: US201016%%1856

学科分类：能源（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

The document lays-out step by step instructions to estimate landscaping water using two alternative approaches: evapotranspiration method and irrigation audit method. The evapotranspiration method option calculates the amount of water needed to maintain a healthy turf or landscaped area for a given location based on the amount of water transpired and evaporated from the plants. The evapotranspiration method offers a relatively easy ???one-stop-shop??? for Federal agencies to develop an initial estimate of annual landscape water use. The document presents annual irrigation factors for 36 cities across the U.S. that represents the gallons of irrigation required per square foot for distinct landscape types. By following the steps outlined in the document, the reader can choose a location that is a close match their location and landscape type to provide a rough estimate of annual irrigation needs without the need to research specific data on their site. The second option presented in the document is the irrigation audit method, which is the physical measurement of water applied to landscaped areas through irrigation equipment. Steps to perform an irrigation audit are outlined in the document, which follow the Recommended Audit Guidelines produced by the Irrigation Association.[5] An irrigation audit requires some knowledge on the specific procedures to accurately estimate how much water is being consumed by the irrigation equipment.