Determination of Irrigation Depths Using a Numerical Model and Quantitative Weather Forecast and Comparison with an Experiment

使用数值模型和定量天气预报确定灌溉深度并与实验进行比较

• 批准号: 23580335
• 负责人: FUJIMAKI Haruyuki
• 金额: $ 3.33万
• 依托单位: Tottori University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23580335/
• 关键词: 灌漑; 作物の成長モデル; 蒸散

A scheme for determining irrigation depth using a numerical model of crop response to irrigation and quantitative weather forecast was presented. To optimize each irrigation depth, a concept of virtual income, which is proportional to an increment in transpiration amount during an irrigation interval, is introduced. The optimization module has been incorporated into a numerical mode that simulates water, solute, and heat movement and crop growth. Three field experiments were carried out to evaluate effectiveness of the presented scheme. Results indicated that predicted water content and salinity agreed well with observation and net return were similar to treatment irrigated by an automatic irrigation system. These results revealed that proposed scheme can at least alter automatic irrigation systems and save costs for equipments such as soil moisture probes, dataloggers and solenoid valves.

提出了一种利用作物灌溉响应数值模型和定量天气预报确定灌溉深度的方案。为了优化各灌水深度，引入了虚拟收益的概念，虚拟收益与灌水间隔内的蒸腾量增量成正比。优化模块已被纳入一个数值模式，模拟水，溶质，热运动和作物生长。三个现场实验进行了评估所提出的方案的有效性。结果表明，预测的土壤含水量和含盐量与实测值吻合较好，净回报率与自动灌溉系统灌溉的处理相近。这些结果表明，该方案至少可以改变自动灌溉系统，并节省成本的设备，如土壤水分探头，数据记录器和电磁阀。

项目成果

Determination of Irrigation Depths Using a Process Model and Quantitative Weather Forecas

使用过程模型和定量天气预报确定灌溉深度

• 发表时间: 2014
• 作者: Fujimaki;H. ;Tokumoto;I.;Saito;T. and Shibata;M.
• 通讯作者: M.

植物の生長モデルと天気予報を利用した灌漑水量の決定

使用植物生长模型和天气预报确定灌溉水量

• 发表时间: 2012
• 作者: 林 清忠;正畠 宏一;牧野 直樹;外園 信吾;阿布都沙塔尓買買提明,田中丸治哉,多田明夫;多田明夫，栗原周平，田中丸治哉;Mohammad Raihanul ISLAM and Satoru Ishiguro;岡崎正泰・藤巻晴行・西原英治・井上光弘・齊藤忠臣
• 通讯作者: 岡崎正泰・藤巻晴行・西原英治・井上光弘・齊藤忠臣

2次元土壌水分溶質移動数値解析ソフトウェアWASH_2Dのサイト

二维土壤水溶质运移数值分析软件WASH_2D网站

Determination of irrigation depths using a process model and quantitative weather forecast

使用过程模型和定量天气预报确定灌溉深度

• 发表时间: 2013
• 作者: Fujimaki Haruyuki;Ieyasu Tokumoto;Tadaomi Saito and Masashi Shibata
• 通讯作者: Tadaomi Saito and Masashi Shibata

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