Precision irrigation technology plays an important role in the development of modern agriculture. In order to improve the utilization of water resources, it is necessary to carry out real-time monitoring and forecasting of soil moisture within a certain range. Water distribution schemes and irrigation schemes are one of the important means of drought prevention and drought relief. The soil moisture measuring instrument plays an important role in the study of public opinion.
The sample samples of soil moisture are all one-dimensional random sequences of time, and the average level and variability are generally described from two aspects: concentration trend and discrete trend. Indicators reflecting discrete trends include sample maximum, minimum, variance, standard deviation, coefficient of variation, and range, etc. Indicators reflecting trends in the data set include mean and median.
In the study of soil moisture change law, the soil moisture tester's lyric data histogram is often used for analysis, that is, a series of rectangles of equal width and height are used to represent the data distribution. When drawing the histogram of the lyric data, the frequency of the data in the given interval is the height of the rectangle and is taken as the ordinate, and the interval of the data range is the width of the rectangle and as the abscissa.
Through the measurement of the soil moisture measuring instrument, it is found that with the global warming, drought has become a major natural disaster that plagues the normal production and life of human society. Monitoring and forecasting of soil moisture is the basic work for drought prevention and drought relief. The drought-resistant department determines the current public opinion level and predicts the development trend of the next public opinion by measuring the changes in soil moisture.
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