| 远程智能控制滴灌土壤入渗多参数节水效果试验研究 |
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| 引用本文： | 杨洋,孙兆军.远程智能控制滴灌土壤入渗多参数节水效果试验研究[J].节水灌溉,2017(5). |
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| 作者姓名： | 杨洋 孙兆军 |
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| 作者单位： | 1. 宁夏大学土木与水利工程学院,银川,750021;2. 宁夏大学土木与水利工程学院,银川 750021;宁夏大学环境工程研究院,银川 750021 |
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| 基金项目： | 自治区项目"高温条件下风光互补节水灌溉设备开发与示范"，自治区项目"中阿绿色智能节水装备与技术研发平台建设" |
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| 摘 要： | 基于使用远程智能控制系统,研究扬黄灌区土壤水分入渗试验,分析讨论了2种类型土壤,基于不同压力、埋深程度研究土壤水分入渗速度、湿润锋、时间等,并初步总结出不同外界条件下土壤入渗的变化规律,为保持水土、提高土壤水分生产力提供重要的科学依据。研究表明:压力、贴片式滴灌带的埋深程度对土壤累计入渗量和入渗速度的影响都比较明显。土壤累积入渗量随着压力水头的增加而增大,湿润运移距离位移不单单和环境有关系,压力对其的影响也很大。在越强的压力作用下,水的运送速度越快,这样土壤的入渗速度就越快。速度的增大也加快了各个方向的运移速率,从而达到在短时间内入渗大面积的土壤,增大了运移距离。实验结果显示,湿润锋能够在压力为0.2 MPa的情况下达到最大运移距离;埋深程度也同样影响着土壤累积入渗量和土壤的累计入渗速度,经试验测量埋深10 cm土壤入渗量最大,且地表不宜蒸发到。
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| 关 键 词： | 远程智能控制滴灌 压力 埋深程度 入渗量 入渗速度 |
Study on Soil Infiltration Multi-parameter Water Saving Effect of Remote Intelligent Control Drip Irrigation |
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| YANG Yang,SUN Zhao-jun.Study on Soil Infiltration Multi-parameter Water Saving Effect of Remote Intelligent Control Drip Irrigation[J].Water Saving Irrigation,2017(5). |
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| Authors: | YANG Yang SUN Zhao-jun |
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| Abstract: | Using the remote control intelligent system, through soil infiltration experiments in the pumping irrigation area and based on two soil types, this paper analyzes the soil infiltration rate, wetting front and time under different water pressure and depth of buried depth and summarized the changing law of soil infiltration under different outside condition to supply scientific base for the water and soil conservation and the improvement of soil water productivity.The study results show that: the water pressure and the buried depth of drip irrigation belt have significant influence on the soil cumulative infiltration and infiltration rate;the cumulative infiltration increases with the increase of the water pressure increased;the water pressure can enhance the migration rate and distance of soil moisture in different directions;when the water pressure is 0.2 MPa, the wetting front can reach the largest migration distance in each direction;the buried depth of drip irrigation belt also has effect on the cumulative infiltration amount and infiltration rate of soil;when the buried depth is 10 cm, the cumulative infiltration reaches the maximum and the soil surface is not easy to evaporate. |
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| Keywords: | drip irrigation of remote intellectualization control pressure buried depth infiltration volume innfiltration rate |
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