Method for detecting soil-wetted body in drip irrigation mode
A soil and box method technology, applied in the field of soil detection, can solve the problems of destroying the original state and space of the wet body, difficult continuous measurement, and unable to reflect the morphological characteristics of the soil wet body well.
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Embodiment 1
[0083] The present invention provides a method for detecting soil moist bodies under drip irrigation. The method of this embodiment is implemented on the wet bodies formed after clay irrigation, which is carried out indoors. The specific operation steps are as follows:
[0084] (1) Experimental materials: soil and water
[0085] The soil used in the experiment is taken from the clean soil with no pollution in the surface layer of 0-20cm. After natural air drying, the volume water content is measured to be 2.03%, and then passed through a 2mm sieve to measure the soil properties. (<0.002mm), powder (0.02-0.002mm), sand (2-0.02mm)) proportion indicates that the experimental water is ordinary deionized water.
[0086] The properties of soil used in this embodiment are shown in Table 4 below:
[0087] Table 4: Soil Properties
[0088] Tab.4 Soil Properties
[0089]
[0090] (2) Ground Penetrating Radar
[0091] The LTD-2100 ground penetrating radar system produced by the Ch...
Embodiment 2
[0118] The present invention provides a detection method of soil moist body under the drip irrigation method. The method of this embodiment is directly applied to the outdoor field. The specific operation steps are the same as the operation steps of the above-mentioned embodiment 1, except that the detection object and the amount of irrigation water are changed.
[0119] The experimental site of this embodiment is located in the farm of Shandong Agricultural University (South Campus), without weeds. This experiment mainly detects the range of GPR detection of soil moist body and the characteristics of radar images in field practice. The design test is as follows:
[0120] Design five wet bodies, the irrigation volumes are 500ml, 1000ml, 1500ml, 2000ml, 2500ml respectively, and the interval of irrigation points is 1m, such as Figure 13 shown. After 2 hours of standing still after irrigation, the soil water no longer diffuses and is in a stable state. GPR data collection is ca...
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