CN210322409U - Soil nutrient leakage monitoring device in karst region - Google Patents
Soil nutrient leakage monitoring device in karst region Download PDFInfo
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- CN210322409U CN210322409U CN201920984606.1U CN201920984606U CN210322409U CN 210322409 U CN210322409 U CN 210322409U CN 201920984606 U CN201920984606 U CN 201920984606U CN 210322409 U CN210322409 U CN 210322409U
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Abstract
The utility model discloses a karst area's soil nutrient leakage monitoring devices, it includes plant and soil solution sample thief, has a square pit in the side soil of plant, has buried the soil solution sample thief in the soil all around of pit. The soil solution sampler in the soil is extracted in the rainfall season, the collected water is taken out and brought back to a laboratory to measure the nutrient content, and the influence of rainfall on the fissure water-salt migration, namely the fissure water-salt migration mechanism, can be accurately reflected through comparative analysis, so that the mechanism problem of the karst fissure water-salt migration is solved, and a good effect is achieved.
Description
Technical Field
The utility model relates to a soil leakage monitoring devices especially relates to a soil nutrient leakage monitoring devices in karst area, belongs to field test monitoring technology field.
Background
The soil is the basic production data of agricultural production and the material and energy circulation hub in the chain ring of agricultural production, and is the source of nutrients required by vegetation growth, and the nutrient content of the soil restricts the vegetation growth and the restoration of the ecological environment of stony desertification. Particularly, the ecological industry is developed in the karst rock desertification area, and the improvement of the soil quality is particularly needed. Due to the existence of special karst geological structures such as cracks, pipelines, water falling holes, karst caves and underground rivers, soil on the ground surface can be leaked into the underground space. The water and soil leakage is a special water and soil loss mode in the karst region, the soil leakage is a main water and soil loss mode in the rocky desertification region, the water and soil loss is more serious than the ground surface loss, nutrient elements required by soil growth can be taken away in the water and soil leakage process, the growth of plants in the karst rocky desertification region can be seriously hindered, and the restoration of the ecological environment in the rocky desertification ecological environment fragile region is not facilitated. Therefore, how to research the nutrient leakage mechanism of the soil in the karst region and guide the ecological environment recovery and reconstruction in the karst rock desertification region is the technical problem faced at present.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the method comprises the steps of selecting a sample plot with typical and representative characteristics in a karst rock desertification comprehensive treatment area through field investigation (typically and typically comprehensively considering vegetation types, crop types and topographic forms of the research area), selecting representative plants in the sample plot, digging a pit with the length of 50cm, the width of 50cm and the depth of 50cm at a position 20cm away from the plants to form four vertically downward soil sections, respectively digging four holes with the diameter of 5cm on the four vertical soil sections of the pit, wherein the hole depth is 20cm, the distances between the holes and the soil surface are respectively 10 cm, 20cm, 30cm and 40cm, respectively placing four soil solution samplers into the holes in the three steps, and filling the holes with soil without leaving empty; a soil solution sampler in soil is extracted in a rainfall season, and meanwhile, the influence of different rainfall conditions on the moisture and nutrient contents of soil layers at different depths is systematically and correctly reflected by combining related data such as rainfall of a meteorological station, so that the mechanism problem of nutrient leakage of rainfall on the karst stony desertification area is revealed.
The technical scheme of the utility model is that: the utility model provides a karst area's soil nutrient leakage monitoring devices, it includes plant and soil solution sample thief, there is a square pit in the side soil of plant, buries four soil solution sample thief respectively in the soil around the pit.
The specifications of the pits are that the length is 50cm, the width is 50cm, the depth is 50cm, the side walls of the pits are vertical, and the distance between the pits and plants is 20 cm.
The distance between the soil solution sampler and the side wall of the pit is 20cm, and the four soil solution samplers are different in buried depth in soil.
The distances between the four soil solution samplers and the soil surface are 10 cm, 20cm, 30cm and 40cm respectively.
The soil solution sampler is a soil solution sampler of Rhizon corporation in the Netherlands, and the aperture of the soil solution sampler is 0.6 mu m.
The utility model has the advantages that: compared with the prior art, adopt the technical scheme of the utility model, this technical scheme masters behind stony desertification comprehensive control demonstration district vegetation type, crop type and the topography and features through system analysis, selects to have typicality and representative sample plot type, through installing soil moisture collector in the sample plot. The influence of rainfall on soil nutrients in a sample plot is monitored systematically, scientifically and accurately, and the influence of water leakage in a karst region on soil nutrient loss is revealed. Meanwhile, the traditional manual soil sampling for determining nutrients is avoided, and time and labor are wasted. The method can dynamically reflect the loss condition of nutrients along with rainfall, and the data is real and reliable.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of the present invention;
FIG. 4 shows the organic carbon content of soil solutions collected from different soil layers;
FIG. 5 shows the organic nitrogen content of soil solution soil collected from different soil layers;
FIG. 6 shows soil soluble organic carbon content of soil solutions collected from different soil layers;
FIG. 7 shows the soil soluble organic nitrogen content of soil solution collected from different soil layers.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1: as shown in attached figures 1-3, the monitoring device for the soil nutrient leakage in the karst region comprises a plant 1 and soil solution samplers 3, wherein square pits 2 are formed in soil on the side edges of the plant 1, and four soil solution samplers 3 are buried in the soil around the pits 2 respectively.
Furthermore, the specifications of the pit 2 are 50cm in length, 50cm in width and 50cm in depth, the side wall of the pit 2 is vertical, and the distance between the pit 2 and the plant 1 is 20 cm.
Further, the distance between the soil solution sampler 3 and the side wall of the pit 2 is 20cm, and the four soil solution samplers 3 are buried in the soil at different depths.
Further, the distances between the four soil solution samplers 3 and the soil surface are 10 cm, 20cm, 30cm and 40cm, respectively.
Further, the soil solution sampler 3 is a soil solution sampler of Rhizon, Netherlands, and has a pore size of 0.6. mu.m.
An installation and use method of a soil nutrient leakage monitoring device in a karst region comprises the following steps: selecting different typical and representative land utilization types in a karst stony desertification area; secondly, digging a pit 2 with the length of 50cm, the width of 50cm and the depth of 50cm at the position 20cm away from the root of the plant 1 in each land utilization type to form four vertically downward soil sections; respectively digging four holes with the diameter of 5cm on four vertical soil sections of the pit 2, wherein the depth of each hole is 20cm, and the distances between each hole and the soil surface are respectively 10 cm, 20cm, 30cm and 40 cm; fourthly, the four soil solution samplers 3 are respectively placed in the holes in the third step, and then the holes are filled with soil without leaving empty; and fifthly, extracting a soil solution sampler 3 in the soil in the rainfall season, taking out the collected water, bringing the collected water back to a laboratory to measure the nutrient content, and comparing the soil nutrient content of different soil layer depths to reveal the leakage mechanism of the soil nutrients.
The parts of the present invention not described in detail are the known techniques of those skilled in the art. Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (5)
1. The utility model provides a karst area's soil nutrient leakage monitoring devices, it includes plant (1) and soil solution sample thief (3), its characterized in that: a square pit (2) is formed in the soil on the side edge of the plant (1), and four soil solution samplers (3) are buried in the soil around the pit (2) respectively.
2. The karst area soil nutrient leakage monitoring device of claim 1, wherein: the specifications of the pit (2) are 50cm in length, 50cm in width and 50cm in depth, the side wall of the pit (2) is vertical, and the distance between the pit (2) and the plant (1) is 20 cm.
3. The karst area soil nutrient leakage monitoring device of claim 1, wherein: the distance between the soil solution samplers (3) and the side walls of the pits (2) is 20cm, and the four soil solution samplers (3) are buried in the soil at different depths.
4. The karst area soil nutrient leakage monitoring device of claim 3, wherein: the distances between the four soil solution samplers (3) and the soil surface are 10 cm, 20cm, 30cm and 40cm respectively.
5. The karst area soil nutrient leakage monitoring device of claim 1, 3 or 4, wherein: the soil solution sampler (3) is a soil solution sampler of Rhizon corporation in the Netherlands, and the aperture of the soil solution sampler is 0.6 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920984606.1U CN210322409U (en) | 2019-06-27 | 2019-06-27 | Soil nutrient leakage monitoring device in karst region |
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| CN201920984606.1U CN210322409U (en) | 2019-06-27 | 2019-06-27 | Soil nutrient leakage monitoring device in karst region |
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| CN210322409U true CN210322409U (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160830A (en) * | 2019-06-27 | 2019-08-23 | 贵州师范大学 | A kind of the soil nutrient leakage loss monitoring device and installation and application of Karst region |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160830A (en) * | 2019-06-27 | 2019-08-23 | 贵州师范大学 | A kind of the soil nutrient leakage loss monitoring device and installation and application of Karst region |
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