Accurate determination method and system for soil pollutants

Abstract

The invention relates to the technical field of soil detection, in particular to an accurate determination method and system for soil pollutants, a pre-sampling position is determined through a first pre-positioning program, a first sampling program is executed at the pre-sampling position, and if rootstocks exist in the soil at the pre-sampling position, the rootstocks are sampled; the diameter of the rhizome is judged under the action of a first judgment program, if the diameter of the rhizome accords with a first target type, once the rhizome is damaged in the state, juice in the rhizome is easy to leak into a soil sample, so that the accuracy of soil pollutant detection is reduced, and the detection accuracy is improved. In the state that the diameter of the rhizome accords with the first target type, the prediction program is executed to predict the trend of the rhizome, the re-sampling position is determined by predicting the trend of the rhizome, and the second sampling program is executed at the re-sampling position, so that the rhizome is prevented from existing in the re-sampling position, and the quality of the rhizome is improved. Therefore, the juice of the rhizome is prevented from influencing the determination of soil pollutants by a detection program.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, and in particular to a method and system for accurately determining soil pollutants. Background Art

[0002] In the process of soil pollutant detection, soil is first sampled, and the corresponding detection method is selected according to the soil sample and the environment in which the soil sample is located, so as to improve the accuracy of soil pollutant detection, among which the accuracy and representativeness of the sample are crucial. However, the process of soil sampling is often subject to various interference items. The conventional sampling process generally removes the interference items together. In the early stage of existing soil pollutant determination, the soil sample is generally required to be pretreated, wherein the pretreatment includes filtering the sample through a sieve, removing large particles in the soil sample, and mixing and stirring to ensure the uniformity and representativeness of the sample, and reduce the interference of interference items in soil detection. However, when pretreating the soil sample, some interference items mixed in the soil sample cannot be completely eliminated, and the interference items that cannot be completely eliminated reduce the accuracy of soil pollutant determination. Summary of the invention

[0003] The applicant discovered that when staff members were measuring soil pollutants in a garden environment and randomly taking samples in the garden, the roots and rhizomes of the trees planted in the garden were intricate. During the sampling process, once the sampler damaged the rhizomes of the trees, the juice in the rhizomes could easily penetrate into the soil. During the pretreatment of the soil samples, the juice in the rhizomes could not be completely cleaned, which easily led to the staff members being unable to accurately measure the soil pollutants.

[0004] Based on this, the present invention provides a method and system for accurately measuring soil pollutants to solve the problem that existing staff cannot accurately detect soil pollutants.

[0005] The present invention provides a method and system for accurately determining soil pollutants using the following technical solutions:

[0006] A method for accurately determining soil pollutants comprises the following steps:

[0007] Determine the target sampling area;

[0008] According to the target sampling area, executing a first pre-positioning procedure to set a pre-sampling position;

[0009] performing a first sampling procedure at a pre-sampling position;

[0010] If there are rhizomes inside the soil at the pre-sampling position, a first judgment procedure is executed to judge the diameter of the rhizomes;

[0011] If the diameter of the rhizome meets the first target type, a prediction program is executed to predict the direction of the rhizome;

[0012] The resampling locations were set based on the predictions of the rhizome orientation made by the prediction program;

[0013] performing a second sampling procedure at the resampling location;

[0014] Perform the testing procedure for each soil sample.

[0015] Furthermore, a plurality of pressure sensors are set at the end of the sampler; when the end of the sampler contacts the rhizome, any one or more pressure sensors can simultaneously generate data changes;

[0016] The first judgment procedure includes:

[0017] If the number of pressure sensors with data changes is greater than or equal to the first preset value, or the data change range of the pressure sensors is greater than or equal to the second preset value, the diameter of the rhizome meets the first target type.

[0018] Furthermore, the prediction procedure includes:

[0019] The root direction type is set according to the position of the pressure sensor at the end of the sampler where the data changes.

[0020] Furthermore, the rhizome orientation types include at least:

[0021] Type 1: The first type is when the rhizome is tangent to the sampler;

[0022] Type 2: The second type is when the rhizome level is below the sampler;

[0023] The third type is that the rhizome and the sampler have an angle in the vertical plane.

[0024] Further, the distance between the re-sampling position and the pre-sampling position is the shortest.

[0025] Further, if the diameter of the rhizome meets the second target type, sampling is continued at the pre-sampling position.

[0026] Furthermore, a pretreatment procedure is performed on the soil samples.

[0027] Furthermore, a pretreatment procedure was used to remove the grit inside the soil samples.

[0028] Furthermore, the detection data of multiple soil samples are averaged.

[0029] A precise determination system for soil pollutants comprises at least a pre-positioning module, a judgment module, a first sampling module, a prediction module, a second sampling module and a detection module.

[0030] The pre-positioning module is used to determine the target sampling area; the judgment module is used to execute the first pre-positioning program and set the pre-sampling position according to the target sampling area; the first sampling module is used to execute the first sampling program at the pre-sampling position; the prediction module is used to execute the first judgment program to judge the diameter of the rhizome when there is a rhizome inside the soil at the pre-sampling position; if the diameter of the rhizome meets the first target type, the prediction program is executed to predict the direction of the rhizome; the second sampling module is used to set the re-sampling position according to the prediction of the rhizome direction by the prediction program; the second sampling program is executed at the re-sampling position; the detection module executes the detection program for each soil sample.

[0031] The beneficial effects of the present invention are as follows: the present invention provides a precise determination method for soil pollutants. When determining soil pollutants in a garden environment, the target sampling area in the garden is first determined, a first pre-positioning program is executed according to the target sampling area, a pre-sampling position is determined by the first pre-positioning program, and a first sampling program is executed at the pre-sampling position. If there are rhizomes inside the soil at the pre-sampling position, the diameter of the rhizomes is judged under the action of a first judgment program. If the diameter of the rhizomes meets the first target type, once the rhizomes are damaged in this state, the juice in the rhizomes is easy to leak into the soil sample, thereby reducing the accuracy of soil pollutant detection. When the diameter of the rhizomes meets the first target type, a prediction program is executed to predict the direction of the rhizomes. By predicting the direction of the rhizomes, a re-sampling position is determined, and a second sampling program is executed at the re-sampling position to prevent the existence of rhizomes inside the re-sampling position, thereby preventing the juice of the rhizomes from affecting the determination of soil pollutants by the detection program. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 A flow chart of a method for accurately determining soil pollutants provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0036] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or it can be an electrical, mechanical or other form of connection.

[0037] like Figure 1 As shown, an embodiment of the present invention provides a method for accurately determining soil pollutants, comprising the following steps:

[0038] S1, determine the target sampling area. Specifically, in a garden environment, the entire garden can be divided into multiple sampling areas, each of which is planted with various varieties of trees, and any sampling area is selected as the target sampling area. For example, the actual land area of ​​the garden is evenly divided into multiple sampling areas, and the land area of ​​each sampling area is the same, and the target sampling area is any sampling area.

[0039] S2, according to the target sampling area, execute the first pre-positioning procedure to set the pre-sampling position. Specifically, when setting the sampling position in the target sampling area, in order to improve the accuracy of sampling, the number of pre-sampling positions set is multiple, and the randomness of sampling can be reduced by setting multiple pre-sampling positions. For example, the first pre-positioning procedure includes: when the land area of ​​the target sampling area is ten square meters, a pre-sampling position is set in each square of land, and the distance between any two adjacent pre-sampling positions is the same, so as to prevent the soil sample components in the two pre-sampling positions from being too similar.

[0040] S3, executing a first sampling procedure at the pre-sampling position. Specifically, after the pre-sampling position is determined, the first sampling procedure is executed at the pre-sampling position, and the first sampling procedure can collect soil samples at the pre-sampling position. Since there are multiple pre-sampling positions in the target sampling position, multiple soil samples can be obtained through sampling by the first sampling procedure.

[0041] S4, if there are rhizomes inside the soil at the pre-sampling position, the first judgment procedure is executed to judge the diameter of the rhizomes. Specifically, when the first sampling procedure samples the pre-sampling position, due to the difference between the hardness of the rhizomes and the hardness of the soil, the staff can subjectively judge whether there are rhizomes inside the soil at the pre-sampling position based on the feel of sampling; or, the staff takes out the soil sample after sampling to check whether there are rhizomes inside the soil sample, thereby judging whether there are rhizomes inside the soil at the pre-sampling position; or, after sampling, the staff observes the side wall of the hole on the ground to observe whether there is a cross section of the rhizomes on the side wall of the hole, thereby judging whether there are rhizomes inside the soil at the pre-sampling position. In the case that there are rhizomes inside the soil at the pre-sampling position, the first judgment procedure is executed to judge the size of the rhizomes. For example, the first judgment procedure is that the staff observes the side wall of the hole on the ground after sampling, measures the cross section of the rhizomes on the side wall of the hole, and judges the size of the rhizomes based on the cross section of the rhizomes. For another example, the first judgment procedure is that the staff takes out the soil sample after sampling and directly measures the diameter of the rhizomes remaining in the soil sample.

[0042] S5, if the diameter of the rhizome meets the first target type, the prediction program is executed to predict the direction of the rhizome. Specifically, when the diameter of the rhizome meets the first target type, once the rhizome is damaged, the juice in the rhizome can penetrate into the soil sample. The juice of the rhizome contains various components, and the rhizome juice that penetrates into the soil sample affects the subsequent detection of the soil sample. When there are rhizomes inside the soil at the pre-sampling position and the diameter of the rhizome meets the first target type, the direction of the rhizome is predicted by the prediction program to avoid contacting the rhizome again after changing the sampling position, thereby improving the efficiency of effective sampling. For example, the prediction program is for the staff to observe the side wall of the hole on the ground after the sampling is completed, and predict the direction of the rhizome based on the side section of the rhizome remaining in the soil. For another example, the prediction program is for the staff to take out the soil sample after the sampling is completed, and predict the direction of the rhizome based on the rhizome remaining in the soil sample.

[0043] S6, according to the prediction of the direction of the rhizomes by the prediction program, set the re-sampling position. Specifically, the direction of the rhizomes is predicted by the prediction program, and when the re-sampling position is set, the re-sampling position can effectively avoid the interference of the rhizomes on the soil samples, thereby improving the accuracy of soil sample sampling.

[0044] S7, execute the second sampling procedure at the resampling position. Specifically, after the resampling position is determined, the second sampling procedure is executed at the resampling position, and the second sampling procedure can collect soil samples at the resampling position. The second sampling procedure and the first sampling procedure are both executed by the sampler, that is, the staff uses the sampler to sample at the pre-sampling position or the resampling position.

[0045] S8, performing a detection procedure on each soil sample. Specifically, through the sampling of the first sampling procedure and the second sampling procedure, multiple soil samples are obtained in the target sampling area, and a detection procedure needs to be performed on each soil sample once, that is, to obtain the composition of pollutants in each soil sample and the specific composition of various pollutants, thereby improving the accuracy of the determination of soil pollutants in the target sampling area.

[0046] The present invention provides a precise determination method for soil pollutants. When determining soil pollutants in a garden environment, first determine a target sampling area in the garden, execute a first pre-positioning program according to the target sampling area, determine a pre-sampling position through the first pre-positioning program, execute a first sampling program at the pre-sampling position, if there are rhizomes inside the soil at the pre-sampling position, judge the diameter of the rhizomes under the action of a first judgment program, if the diameter of the rhizomes meets the first target type, once the rhizomes in this state are damaged, the juice in the rhizomes is easy to leak into the soil sample, thereby reducing the accuracy of soil pollutant detection, when the diameter of the rhizomes meets the first target type, execute a prediction program to predict the direction of the rhizomes, determine a re-sampling position by predicting the direction of the rhizomes, and execute a second sampling program at the re-sampling position to prevent the existence of rhizomes inside the re-sampling position, thereby preventing the juice of the rhizomes from affecting the determination of soil pollutants by the detection program.

[0047] In one of the embodiments, a plurality of pressure sensors are set at the end of the sampler. Specifically, the sampler is used to perform both the first sampling procedure and the second sampling procedure. During the sampling process, the sampler is pressed vertically toward the ground, and the soil sample enters the interior of the sampler. After the soil sample is taken out, a hole is formed on the ground. By setting a plurality of pressure sensors at the lower end of the sampler, during the sampling process, the plurality of pressure sensors can directly contact the soil. Since there is an obvious difference between the hardness of the soil and the hardness of the rhizomes, when there are no rhizomes in the soil, the data of the plurality of pressure sensors are roughly the same. When there are rhizomes in the soil and the end of the sampler contacts the rhizomes, any one or more pressure sensors can change data at the same time. Then, the staff can know whether there are rhizomes in the soil at the pre-sampling position according to the data changes of the plurality of pressure sensors.

[0048] The first judgment procedure includes: if the number of pressure sensors with data changes is greater than or equal to the first preset value, or the data change range of the pressure sensor is greater than or equal to the second preset value, then the diameter of the rhizome meets the first target type. Specifically, when the sampler is squeezed vertically toward the ground, when the sampler does not contact the rhizome, the values ​​of multiple pressure sensors are roughly the same. Once the sampler contacts the rhizome, the values ​​of the pressure sensors can change. If the number of pressure sensors with data changes is greater than or equal to the first preset value, then the diameter of the rhizome meets the first target type, wherein the first preset value is a manually set value. For example, a total of ten pressure sensors are set at the end of the sampler, wherein the ten pressure sensors are evenly distributed at the end of the sampler, and the first preset value is set to four. When the sampler contacts the rhizome, and at the same time, four or more pressure sensors have data changes, it is proved that the diameter of the rhizome meets the first target type.

[0049] When the sampler contacts the rhizome, the value of the pressure sensor may change. If the data change range of the pressure sensor is greater than or equal to the second preset value, the diameter of the rhizome meets the first target type, where the second preset value is an artificially set value. For example, the pressure sensor at the end of the sampler has a data of 10N during normal sampling. When the pressure sensor contacts the rhizome, the second preset value is set to 20N. When the value of any pressure sensor suddenly changes to 20N or above, it proves that the diameter of the rhizome meets the first target type.

[0050] In one embodiment, the prediction process includes: setting the root and stem orientation type according to the position of the pressure sensor at the end of the sampler where the data changes.

[0051] It can be understood that when the lower end of the sampler contacts the rhizome, and the diameter of the rhizome meets the first target type, the number of data changes of the multiple pressure sensors arranged at the lower end of the sampler is greater than or equal to the first preset value, and the distribution state of the multiple pressure sensors with data changes at the end of the sampler can determine the direction of the rhizome. For example, the pressure sensors with data changes are concentrated in one area at the end of the sampler; or, the pressure sensors with data changes are concentrated in two spaced areas at the end of the sampler; or, the pressure sensors with data changes are concentrated in three spaced areas at the end of the sampler, etc. The direction of the rhizome can be determined according to the position of the pressure sensors with data changes at the end of the sampler, and the type of rhizome direction can be determined at the same time. The resampling position can be determined according to the type of rhizome direction.

[0052] In one embodiment, the rhizome direction type includes at least the first type, the second type and the third type. The first type is that the rhizome is tangent to the sampler. Specifically, the pre-sampling position is at the edge of the rhizome. When the sampler samples at the pre-sampling position, the sampler can damage the epidermis of the rhizome. In this type, the pressure sensor with data changes is concentrated in one area at the end of the sampler. The second type is that the rhizome is horizontally below the sampler. Specifically, the pre-sampling position is directly above the rhizome. When the sampler samples at the pre-sampling position, the sampler can cut off the rhizome. In this type, the pressure sensor with data changes is concentrated in two spaced areas at the end of the sampler. The third type is that the rhizome and the sampler have an angle in the vertical plane. Specifically, the rhizome is in a state of drilling obliquely underground when growing. When the sampler samples at the pre-sampling position, a part of the rhizome can enter the interior of the sampler. In this type, the pressure sensor with data changes is concentrated in one area at the end of the sampler.

[0053] In one embodiment, the rhizome direction type also includes a fourth type, and the fourth type is that the bifurcation point of the rhizome is at the pre-sampling position. Specifically, the rhizome may bifurcate arbitrarily during growth, and when the pre-sampling position is at the bifurcation point of the rhizome, when the sampler performs sampling at the pre-sampling position, the sampler can cut off at the bifurcation point of the rhizome. In this type, the pressure sensors with data changes are concentrated in three mutually spaced areas at the end of the sampler.

[0054] It can be understood that after the rhizome direction type is determined, the sampling position of the sampler is adjusted, and the adjusted sampling position is the re-sampling position, wherein the re-sampling position is spaced apart from the pre-sampling position to ensure that the re-sampling position can avoid the rhizome. In the actual sampling process, by setting the rhizome direction type according to the direction of the rhizome, when the lower end of the sampler contacts the rhizome, the change in the data of the pressure sensor at the end of the sampler can directly determine the rhizome direction type, and then the sampling position is appropriately adjusted according to the rhizome direction type to ensure that the re-sampling position can avoid the rhizome and ensure that the soil sample taken out by the sampler is not contaminated by rhizome juice.

[0055] In one embodiment, the distance between the re-sampling position and the pre-sampling position is the shortest. Specifically, there is a rhizome below a pre-sampling position, and the diameter of the rhizome meets the first target type. After the prediction program predicts the direction of the rhizome, the sampling position is adjusted to the re-sampling position, and the distance between the re-sampling position and the pre-sampling position should be minimized to avoid contact with other rhizomes when sampling at the re-sampling position.

[0056] In one embodiment, if the diameter of the rhizome meets the second target type, sampling is continued at the pre-sampling position. Specifically, the second target type is different from the first target type. When the diameter of the rhizome meets the second target type, the rhizome is a tiny root hair, and the juice content in the root hair is extremely low, which is not enough to affect the determination of soil pollutants. When the diameter of the rhizome meets the second target type, sampling is continued at the pre-sampling position, reducing the frequency of changing the sampling position, thereby improving the extraction efficiency of the soil sample.

[0057] In one embodiment, a pretreatment procedure is performed on the soil sample. Specifically, by performing the pretreatment procedure on the soil sample, the accuracy of soil pollutant determination can be indirectly improved.

[0058] In one embodiment, the pretreatment procedure is used to remove gravel inside the soil sample. Specifically, the pretreatment procedure is screening, and the gravel in the soil sample is removed by pretreatment of the soil sample to improve the accuracy of soil pollutant determination.

[0059] In one embodiment, the test data of multiple soil samples are averaged. There are multiple soil samples in the target sampling area. When testing the soil samples, in order to improve the accuracy of the determination of soil pollutants in the target sampling area, the test data of the multiple soil samples are averaged, so that the determination of soil pollutants is sufficiently accurate.

[0060] A precise determination system for soil pollutants comprises at least a pre-positioning module, a judgment module, a first sampling module, a prediction module, a second sampling module and a detection module.

[0061] The pre-positioning module is used to determine the target sampling area; the judgment module is used to execute the first pre-positioning program and set the pre-sampling position according to the target sampling area; the first sampling module is used to execute the first sampling program at the pre-sampling position; the prediction module is used to execute the first judgment program to judge the diameter of the rhizome when there is a rhizome inside the soil at the pre-sampling position; if the diameter of the rhizome meets the first target type, the prediction program is executed to predict the direction of the rhizome; the second sampling module is used to set the re-sampling position according to the prediction of the rhizome direction by the prediction program; the second sampling program is executed at the re-sampling position; the detection module executes the detection program for each soil sample.

[0062] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions.

[0063] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0064] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for accurately determining soil pollutants, characterized in that: The following steps are involved: Determine the target sampling area; According to the target sampling area, executing a first pre-positioning procedure to set a pre-sampling position; performing a first sampling procedure at a pre-sampling position; If there are rhizomes inside the soil at the pre-sampling position, a first judgment procedure is executed to judge the diameter of the rhizomes; If the diameter of the rhizome meets the first target type, a prediction program is executed to predict the direction of the rhizome; The resampling locations were set based on the predictions of the rhizome orientation made by the prediction program; performing a second sampling procedure at the resampling location; Perform the testing procedure for each soil sample.

2. A method for accurately determining soil pollutants according to claim 1, characterized in that: A plurality of pressure sensors are set at the end of the sampler; when the end of the sampler contacts the rhizome, any one or more pressure sensors can change data simultaneously; The first judgment procedure includes: If the number of pressure sensors with data changes is greater than or equal to the first preset value, or the data change range of the pressure sensors is greater than or equal to the second preset value, the diameter of the rhizome meets the first target type.

3. A method for accurately determining soil pollutants according to claim 2, characterized in that: The forecasting process includes: The root direction type is set according to the position of the pressure sensor at the end of the sampler where the data changes.

4. A method for accurately determining soil pollutants according to claim 3, characterized in that: The root and stem orientation types include at least: Type 1: The first type is when the rhizome is tangent to the sampler; Type 2: The second type is when the rhizome level is below the sampler; The third type is that the rhizome and the sampler have an angle in the vertical plane.

5. The method for accurately determining soil pollutants according to claim 1, characterized in that: The distance between the resampled position and the presampled position is the shortest.

6. The method for accurately determining soil pollutants according to claim 1, characterized in that: If the diameter of the rhizome meets the second target type, sampling continues at the pre-sampling position.

7. The method for accurately determining soil pollutants according to claim 1, characterized in that: Perform pretreatment procedures on soil samples.

8. A method for accurately determining soil pollutants according to claim 7, characterized in that: The pretreatment procedure was used to remove the grit inside the soil samples.

9. The method for accurately determining soil pollutants according to claim 1, characterized in that: The test data of multiple soil samples were averaged.

10. A precise determination system for soil pollutants, characterized in that: At least: A pre-positioning module, which is used to determine the target sampling area; A judgment module, the judgment module is used to execute a first pre-positioning program and set a pre-sampling position according to a target sampling area; A first sampling module, the first sampling module is used to perform a first sampling procedure at a pre-sampling position; A prediction module, the prediction module is used to execute a first judgment program to judge the diameter of the rhizome when there is a rhizome inside the soil at the pre-sampling position; if the diameter of the rhizome meets the first target type, the prediction program is executed to predict the direction of the rhizome; A second sampling module, the second sampling module is used to set a re-sampling position according to the prediction of the rhizome direction by the prediction program; and execute the second sampling program at the re-sampling position; Detection module,The detection module performs a detection procedure on each soil sample.

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