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首页> 外文会议>IEEE Sensors Applications Symposium >How could sensor networks help with agricultural water management issues? Optimizing irrigation scheduling through networked soil-moisture sensors
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How could sensor networks help with agricultural water management issues? Optimizing irrigation scheduling through networked soil-moisture sensors

机译：传感器网络如何帮助解决农业用水管理问题？通过联网的土壤湿度传感器优化灌溉计划

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Irrigated agriculture provides 40% of the World's food from 20% of the agricultural land but uses 70% of all global freshwater withdrawals. However, even supposedly efficient and well-managed irrigation systems waste up to 50% of the water applied to the crops under them. Meeting the food needs of an increasing world population from a static or even decreasing land base will, therefore require improved efficiencies in irrigated agriculture and better use of these finite water resources. The first part of this paper reports on a field-based research project which examined a suite of conventional and alternative irrigation systems which were installed at a farm in south west Australia and assessed and compared in terms of their Water Use Efficiency. All “alternative” systems outperformed the conventional surface (flood) irrigation systems with comparative water savings of around 50%. The second part of the paper assesses the potential Water Use Efficiency improvements at farm and system-scales which could be achieved through linking these irrigation systems to wireless soil-moisture sensor networks which are being developed by the authors and which are reported in detail in associate papers. Improving irrigation scheduling and management by better (and, where appropriate, automatic) links to near real-time soil moisture data is shown to produce water savings of up to 30 GL per year at the irrigation system scale.
机译：灌溉农业从20％的农业用地中提供了40％的世界粮食，但使用了全球所有淡水抽取量的70％。但是，即使是据称高效且管理得当的灌溉系统，也会浪费高达50％的水，而这些水用于其下的农作物。因此，要从静态甚至减少的土地基础上满足日益增长的世界人口的粮食需求，就需要提高灌溉农业的效率，并更好地利用这些有限的水资源。本文的第一部分报告了一个基于实地的研究项目，该项目研究了一套常规和替代灌溉系统，这些系统安装在澳大利亚西南部的一个农场上，并根据用水效率进行了评估和比较。所有“替代”系统的性能均优于传统的地面（洪水）灌溉系统，可节水约50％。本文的第二部分评估了农场和系统规模上潜在的用水效率改善，这可以通过将这些灌溉系统与作者正在开发的无线土壤水分传感器网络相链接来实现，并在相关报告中进行了详细报道。文件。通过更好地（并且在适当情况下，自动地）与近实时土壤湿度数据的链接来改善灌溉调度和管理，结果表明，在灌溉系统规模上，每年可节水多达30 GL。

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