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Measurement and calculation method for soil infiltration parameter of field scale

A parameter and soil technology, applied in computing, data processing applications, electrical and digital data processing, etc., can solve problems such as influence, and achieve the effect of improving measurement efficiency, reducing measurement links, saving measurement time and corresponding equipment investment.

Active Publication Date: 2018-04-03
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

However, in related studies, it is necessary to describe the spatial variability of soil infiltration with the help of soil infiltration parameter data measured in the field, and the limitations and limitations of actually obtained soil infiltration data will affect the use of numerical simulation methods to evaluate soil infiltration space. Flexibility of Variability Effects on Border Irrigation Performance

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  • Measurement and calculation method for soil infiltration parameter of field scale
  • Measurement and calculation method for soil infiltration parameter of field scale
  • Measurement and calculation method for soil infiltration parameter of field scale

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Embodiment Construction

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and examples are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0034] Such as figure 1 As shown, the invention provides a method for measuring and calculating soil infiltration parameters of a field scale, comprising the following steps:

[0035] S1. Carry out K-S normality test on the measured data of soil infiltration parameters at each test point selected in the area to be measured; and perform normal transformation on the measured data of soil infiltration parameters that do not obey the normal distribution, and obtain the normal distribution. Soil infiltration parameter data;

[0036] S2, calculation obeys the experimental variogram of the soil infiltration parameter data of normal distribution, and it is fitted with the theoretical variogram model, obtains the theoretical variogra...

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Abstract

The invention relates to a measurement and calculation method for a soil infiltration parameter of a field scale. The method comprises the steps of performing a K-S normality test on soil infiltrationparameter actual measurement data of each test point; obtaining soil infiltration parameter theoretical data obeying normal distribution; calculating a test variation function of the soil infiltration parameter theoretical data, and performing fitting on the test variation function by using a theoretical variation function model to obtain a theoretical semivariance function of the soil infiltration parameter; according to the theoretical semivariance function and a statistical eigenvalue, calculating a non-conditional simulation value Z*s of the soil infiltration parameter and a non-conditional simulation value Zs of the soil infiltration parameter of an untested position of a to-be-tested region; performing Kriging interpolation on the soil infiltration parameter actual measurement dataand the non-conditional simulation value Z*s of the soil infiltration parameter to obtain data Z*ok and Z*sok; and according to the non-conditional simulation value Zs and the data Z*ok and Z*sok, calculating a soil infiltration parameter value of the untested position of the to-be-tested region. According to the method, the technical support can be provided for optimizing ground irrigation systemdesign and improving field irrigation management level.

Description

technical field [0001] The invention relates to the technical field of irrigation, in particular to a method for measuring and calculating soil infiltration parameters at the field scale. Background technique [0002] The spatial variation of soil infiltration exists objectively in the irrigation system and has a great influence on the irrigation process and irrigation performance. And when the accuracy of field surface leveling is higher, the impact of infiltration space variation on border irrigation performance is more significant. In order to meet the needs of agricultural scale and modernization, the precision of land leveling is getting higher and higher. Therefore, the influence of spatial variation of soil infiltration on irrigation performance should be considered in the design of surface irrigation system and field irrigation management. However, in related studies, it is necessary to describe the spatial variability of soil infiltration with the help of soil infi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/02
CPCG06F30/20G06Q50/02
Inventor 秦天玲刘姗姗翁白莎史婉丽王刚张诚
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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