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首页> 外文会议>IFIP WG 5.14 International conference on computer and computing technologies in agriculture >Calculation of Effective Rainfall in the Spring Maize Growing Period
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Calculation of Effective Rainfall in the Spring Maize Growing Period

机译：春玉米生育期有效降雨的计算

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Effective rainfall accurate determination can promote the technology development of planning crop irrigation, irrigation water management, irrigation and drainage design and highly efficient use of water resources. However, the effective rainfall will be affected by many factors, such as the characteristics of rainfall, characteristic of the crop's type and crop water consumption, soil characteristics and the way farming farmland management. In addition, geographical location, climatic conditions and other factors will also affect the calculation of effective rainfall. Thus, a reasonable calculation method of effective rainfall should be determined based on the specific conditions of the region. In this paper, based on the meteorological data of Changzhi in Shanxi, the effective rainfall in the spring maize growing period was calculated by the method of water balance, under different hydrological conditions and different irrigation. And then this paper applied this method to analyze the effective rainfall of spring maize and simulate daily soil water content. The results show that: with the increase of rainfall, effective rainfall decreases. With the increase of irrigation amount, effective rainfall gradually reduced. With the increase of crop water requirements, effective rainfall gradually increased. Therefore, this paper analyzes the relationship between effective rainfall and rainfall, irrigation and crop water requirement. The correlation coefficient is 0.802. It is closely related. The simulated and measured values of the growing period of spring maize daily soil moisture better fit, weather in the irrigation or non-irrigation conditions. This verified the calculation method of the effective rainfall.
机译：有效的降雨准确测定可以促进规划作物灌溉，灌溉水管理，灌溉和排水设计以及水资源的高效利用的技术发展。然而，有效降雨将受到许多因素的影响，例如降雨特征，作物类型和作物耗水特征，土壤特征以及耕地管理方式。此外，地理位置，气候条件等因素也会影响有效降雨的计算。因此，应根据该地区的具体情况确定合理的有效降雨计算方法。本文根据山西长治的气象数据，采用水量平衡法，在不同水文条件和不同灌溉条件下，计算了春玉米生育期的有效降水量。然后将该方法用于分析春玉米的有效降水量，模拟土壤日水分含量。结果表明：随着降雨的增加，有效降雨减少。随着灌溉量的增加，有效降水量逐渐减少。随着作物需水量的增加，有效降水量逐渐增加。因此，本文分析了有效降雨与降雨，灌溉和作物需水量之间的关系。相关系数为0.802。这是密切相关的。春玉米生长期的模拟值和实测值可以更好地适应土壤水分，灌溉或非灌溉条件下的天气条件。验证了有效降雨的计算方法。

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