CN112098139A - Sample collection device and method based on in-situ pre-embedding mode before reservoir hydro-fluctuation belt flooding - Google Patents
Sample collection device and method based on in-situ pre-embedding mode before reservoir hydro-fluctuation belt flooding Download PDFInfo
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- CN112098139A CN112098139A CN202011018576.2A CN202011018576A CN112098139A CN 112098139 A CN112098139 A CN 112098139A CN 202011018576 A CN202011018576 A CN 202011018576A CN 112098139 A CN112098139 A CN 112098139A
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 125
- 238000004891 communication Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 238000003860 storage Methods 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 4
- 238000013401 experimental design Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 5
- 241000196324 Embryophyta Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
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Abstract
The invention provides a sample collection device and a method based on an in-situ pre-embedding mode before flooding of a reservoir hydro-fluctuation belt, wherein the sample collection device comprises a sample collection device frame structure and a sample collection device side plate structure; the frame structure of the sample collection device comprises two parts, namely a flooding test box at the lower part of the frame structure of the sample collection device and a slide rail at the upper part of the frame structure of the sample collection device, wherein a guide groove is arranged on a frame at the top of the flooding test box, inner-layer side plates of the flooding test box are arranged on four side surfaces of the flooding test box, communication holes are uniformly distributed on the inner-layer side plates of the flooding test box, and four corners at the top of the flooding test box are fixedly connected with traction ropes respectively. The collecting device can be used for collecting underwater soil samples in the hydro-fluctuation belt of the reservoir, and effectively overcomes the difficulty of inconvenient underwater sample collection.
Description
Technical Field
The invention belongs to the field of experimental research of a reservoir hydro-fluctuation belt, and particularly relates to a sample collection device and method based on an in-situ pre-embedding mode before flooding of the reservoir hydro-fluctuation belt.
Background
China has 10 million cubic meters or more of reservoirs and approximately one hundred thousand seats of reservoirs, the total storage capacity is about 9323 hundred million cubic meters, and the system plays a plurality of functions of river runoff regulation, flood control, water supply, irrigation, power generation, shipping, travel and the like. When the reservoir operates, the area where the surrounding land is periodically submerged and exposed between the highest water level and the lowest water level to form water and land staggered control is called a hydro-fluctuation belt due to seasonal fluctuation of the water level of the reservoir area.
As a first ecological barrier for water and land banks, whether the ecological system of the hydro-fluctuation belt is healthy or not is directly related to the water quality safety of the reservoir and the stability of the reservoir bank. In order to better carry out experimental study on the hydro-fluctuation belt, sample collection and analysis are needed to be carried out on hydro-fluctuation belts with different elevations. Due to the water-land alternating characteristic of the hydro-fluctuation belt, particularly when the water level of a reservoir rises, a sample collection is required to be carried out on the submerged area of the hydro-fluctuation belt. Vegetation and soil are important components of a hydro-fluctuation belt ecosystem, and related sample collection devices and methods are lacked at present. Accordingly, there is a need for a sample collection device and method for a hydro-fluctuation belt, particularly a hydro-fluctuation belt flooded area.
Disclosure of Invention
The invention aims to provide a sample device and a method based on an in-situ embedding mode before reservoir hydro-fluctuation belt submergence.
In order to achieve the technical features, the invention is realized as follows: a sample collection device based on an in-situ pre-embedding mode before reservoir hydro-fluctuation belt flooding comprises a sample collection device frame structure and a sample collection device side plate structure;
the frame structure of the sample collection device comprises two parts, namely a flooding test box at the lower part of the frame structure of the sample collection device and a slide rail at the upper part of the frame structure of the sample collection device, wherein a guide groove is arranged on a frame at the top of the flooding test box;
the side plate structure of the sample collecting device comprises a water flooding test box outer side plate operating rod and a water flooding test box outer side plate, a telescopic structure is arranged in the middle of the water flooding test box outer side plate operating rod, the bottom of the telescopic structure is fixedly connected with the middle of the top of the water flooding test box outer side plate, and a buckle is arranged at the top of the water flooding test box outer side plate.
The frame structure of the sample collecting device is provided with a slide rail for embedding the outer side plate of the flooding test box.
The water logging test box is a hollow cube without a top surface, and a fixing device which can be connected with a buckle is arranged in a guide groove arranged on a frame at the top of the water logging test box.
The other end of the traction rope can be combined into one rope, and the length of the traction rope is enough to fix the other end of the traction rope in a waterless area of the hydro-fluctuation belt above the normal water storage level of the reservoir.
And a cutting edge is arranged at the bottom of the outer side plate of the flooding test box.
The method for collecting the sample by the sample collection device based on the in-situ pre-embedding mode before the reservoir hydro-fluctuation belt is submerged comprises the following steps:
the method comprises the following steps: dividing the hydro-fluctuation belt into n elevation intervals according to the requirements of experimental design, and setting different flooding time according to the experimental requirements and reservoir water level scheduling;
step two: after the hydro-fluctuation belts with different elevations are exposed, the hydro-fluctuation belts reach a sampling place determined in advance, original samples with the same size as the size of the flooding test box are respectively and sequentially taken out from n elevation intervals of the divided hydro-fluctuation belts and the non-flooding area above the normal water storage level of the reservoir, and the taken original samples are sequentially placed into the flooding test box;
step three: sequentially pre-embedding the flooding test boxes filled with the undisturbed test samples in situ, combining the other ends of the hauling ropes into one rope, numbering the rope, and fixing the rope in a waterless area of the hydro-fluctuation belt above the normal water storage level of the reservoir;
step four: after the different elevation water-level falling zones of the reservoir are submerged, when the preset flooding time is reached, a monitoring ship is used for holding an outer-layer side plate operating rod of the flooding test box to embed the outer-layer side plate of the flooding test box into a slide rail, and the outer-layer side plate operating rod of the flooding test box is pushed to slide until a buckle arranged at the top of the outer-layer side plate of the flooding test box is fixedly connected with the flooding test box, so that the outer-layer side plate of the flooding test box becomes the outermost side plate of the flooding test box;
step five: repeating the step four, completing the installation of the outer layer side plates of the four side surface flooding test boxes, namely cutting off the root system by using the cutting edge and completely plugging the communicating holes;
step six: pulling the traction rope at a constant speed to sequentially take out the flooding test box, wherein the slow traction process in water is required to be ensured when the traction rope is taken out so as to avoid disturbance on a sample in the flooding test box; and opening the outer-layer side plates of the four flooding test boxes in sequence, and taking out the test sample from the flooding test box.
The invention has the following beneficial effects:
1. by adopting the mode of taking out the original-state sample blocks after the falling zones with different elevations sequentially expose, then putting the original-state sample blocks into the prefabricated flooding test box and finally pre-embedding the flooding test box in situ, the plants can grow in the flooding test box for enough time, and the problem that the underwater sample collection work for the submerged areas of the falling zones is inconvenient can be effectively solved.
2. The inner side plate of the flooding test box is provided with the communicating holes, so that the material energy exchange of the soil inside and outside the flooding test box can be ensured, the influence of the pre-burying of the flooding test box on the growth of the plant root system can be eliminated to the maximum extent, and the root-soil complex sample of the falling zone in the real flooding environment can be obtained.
3. The outer-layer side plate of the flooding test box is embedded into the slide rail through the outer-layer side plate operating rod of the handheld flooding test box, the outer-layer side plate operating rod of the flooding test box is pushed to slide until a buckle arranged at the top of the outer-layer side plate of the flooding test box is fixedly connected with the flooding test box, and the outer-layer side plate of the flooding test box is made to be the outermost side plate of the flooding test box. And because the bottom of the outer side plate of the flooding test box is provided with the cutting edge, the root system can be effectively cut off, the communicating hole can be completely blocked, and the integrity of the taken sample can be ensured.
4. The operating rod of the outer side plate of the flooding test box is provided with a telescopic structure, the length of the operating rod can be adjusted according to the change of the water level depth, and the device is suitable for underwater sample collection work of different water depths aiming at submerged areas of a hydro-fluctuation belt.
5. Four corners of the top of the flooding test box are respectively and fixedly connected with a traction rope, and the other ends of the traction ropes are combined into one and are numbered to be fixed in a waterless flooding area of the hydro-fluctuation belt above the normal water storage level of the reservoir. And when the preset flooding time is reached, taking out the flooding test box with the specified number in the flooded area of the hydro-fluctuation belt conveniently. Meanwhile, the traction ropes are fixed at four corners of the top of the flooding test box, and the flooding test box can be taken out by slowly pulling the traction ropes at a constant speed, so that disturbance to a sample in the flooding test box can be avoided to the greatest extent.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic diagram of a frame structure of a sample collection device according to an embodiment of the present invention;
FIG. 2 is a schematic side plate structure of a sample collection device according to an embodiment of the present invention;
FIG. 3 is a side view of a side plate configuration of a sample collection device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of embedding a sample collection device of a hydro-fluctuation belt in the embodiment of the present invention.
In the figure: the device comprises a flooding test box 1, a slide rail 2, a guide groove 3, a communication hole 4, a flooding test box outer side plate operating rod 5, a flooding test box outer side plate 6, a buckle 7, a blade 8, a traction rope 9, a telescopic structure 10 and a flooding test box inner side plate 11.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-4, a sample collection device based on an in-situ pre-embedding manner before flooding of a reservoir hydro-fluctuation belt comprises a frame structure of the sample collection device and a side plate structure of the sample collection device; the frame structure of the sample collection device comprises two parts, namely a flooding test box 1 at the lower part of the frame structure of the sample collection device and a slide rail 2 at the upper part of the frame structure of the sample collection device, wherein a guide groove 3 is arranged on a frame at the top of the flooding test box 1, inner-layer side plates 11 of the flooding test box are arranged on four side surfaces of the flooding test box 1, communication holes 4 which are uniformly distributed are arranged on the inner-layer side plates 11 of the flooding test box, and four corners at the top of the flooding test box 1 are fixedly connected with traction ropes 9 respectively; the side plate structure of the sample collecting device comprises a water flooding test box outer side plate operating rod 5 and a water flooding test box outer side plate 6, wherein a telescopic structure 10 is arranged in the middle of the water flooding test box outer side plate operating rod 5, the bottom of the telescopic structure 10 is fixedly connected with the middle part of the top of the water flooding test box outer side plate 6, and a buckle 7 is arranged at the top of the water flooding test box outer side plate 6.
Furthermore, the frame structure of the sample collecting device is provided with a slide rail 2 for embedding the outer side plate 6 of the flooding test box. The outer side plate 6 of the water logging test box can be guided in a sliding mode through the sliding rail 2 with the structure, so that the water logging test box 1 can be normally inserted along the sliding rail 2 in the follow-up process, plant root systems on the side face of the sample are effectively cut off, and the integrity of the sample is guaranteed.
Furthermore, the flooding test box 1 is a hollow cube without a top surface, and a fixing device which can be connected with the buckle 7 is arranged in a guide groove 3 arranged on a frame at the top of the flooding test box 1. The hollow cubic structure is convenient for containing the sample.
Furthermore, the other ends of the pulling ropes 9 can be combined into one pulling rope, and the length of the pulling ropes 9 is enough to fix the other ends of the pulling ropes to the waterless area of the hydro-fluctuation belt above the normal water storage level of the reservoir. When the traction rope 9 is used for sampling conveniently, the whole flooding test box 1 is pulled out.
Further, the bottom of the outer layer side plate 6 of the water flooding test box is provided with a cutting edge 8. Can carry out effectual cutting to the soil sample of gathering the completion through adopting cutting edge 8.
Example 2:
the method for collecting the sample by the sample collection device based on the in-situ pre-embedding mode before the reservoir hydro-fluctuation belt is submerged comprises the following steps:
the method comprises the following steps: dividing the hydro-fluctuation belt into n elevation intervals according to the requirements of experimental design, and setting different flooding time according to the experimental requirements and reservoir water level scheduling;
step two: after the hydro-fluctuation belts with different elevations are exposed, the hydro-fluctuation belts reach a sampling place determined in advance, original samples with the same size as the size of the flooding test box 1 are respectively and sequentially taken out from n elevation intervals of the divided hydro-fluctuation belts and a non-flooding area above the normal water storage level of the reservoir, and the taken original samples are sequentially placed into the flooding test box 1;
step three: sequentially pre-burying the flooding test boxes 1 filled with the undisturbed test samples in situ, combining the other ends of the hauling ropes 9 into one and numbering the same, and then fixing the same in a waterless flooding area of the hydro-fluctuation belt above the normal water storage level of the reservoir;
step four: after the different elevation water-level fluctuating zones of the reservoir are submerged, when the preset flooding time is reached, a monitoring ship is taken to hold the operation rod 5 of the outer-layer side plate of the flooding test box, the outer-layer side plate 6 of the flooding test box is embedded into the slide rail 2, the operation rod 5 of the outer-layer side plate of the flooding test box is pushed to slide until a buckle 7 arranged at the top of the outer-layer side plate 6 of the flooding test box is fixedly connected with the flooding test box 1, and the outer-layer side plate 6 of the flooding test box becomes the outermost side plate of the flooding test box 1;
step five: repeating the step four, completing the installation of the outer layer side plates 6 of the four side surface flooding test boxes, namely cutting off the root system by using the cutting edge 8 and completely plugging the communicating holes 4;
step six: the traction rope 9 is pulled at a constant speed to sequentially take out the flooding test box 1, and when the traction rope is taken out, the underwater traction process needs to be ensured to be slow so as to avoid disturbance on a sample in the flooding test box 1; and opening the outer layer side plates 6 of the four flooding test boxes in sequence, and taking out the test sample from the flooding test box 1.
Claims (6)
1. The utility model provides a sample collection system based on reservoir hydro-fluctuation belt is pre-buried mode of normal position before inundating which characterized in that: the device comprises a frame structure of a sample collecting device and a side plate structure of the sample collecting device;
the frame structure of the sample collection device comprises two parts, namely a flooding test box (1) at the lower part of the frame structure of the sample collection device and a slide rail (2) at the upper part of the frame structure of the sample collection device, wherein a guide groove (3) is arranged on a frame at the top of the flooding test box (1), inner-layer side plates (11) of the flooding test box are arranged on four side surfaces of the flooding test box (1), communication holes (4) which are uniformly distributed are arranged on the inner-layer side plates (11) of the flooding test box, and four corners at the top of the flooding test box (1) are fixedly connected with traction ropes (9) respectively;
the side plate structure of the sample collecting device comprises a water logging test box outer side plate operating rod (5) and a water logging test box outer side plate (6), wherein a telescopic structure (10) is arranged in the middle of the water logging test box outer side plate operating rod (5), the bottom of the telescopic structure (10) is fixedly connected with the middle of the top of the water logging test box outer side plate (6), and a buckle (7) is arranged at the top of the water logging test box outer side plate (6).
2. The sample collection device based on the in-situ embedding mode before the flooding of the hydro-fluctuation belt of the reservoir as claimed in claim 1, is characterized in that: the frame structure of the sample collection device is provided with a slide rail (2) embedded into an outer side plate (6) of the water flooding test box.
3. The sample collection device based on the in-situ embedding mode before the flooding of the hydro-fluctuation belt of the reservoir as claimed in claim 1, is characterized in that: the water logging test box (1) is a hollow cube without a top surface, and a fixing device which can be connected with the buckle (7) is arranged in a guide groove (3) arranged on a frame at the top of the water logging test box (1).
4. The sample collection device based on the in-situ embedding mode before the flooding of the hydro-fluctuation belt of the reservoir as claimed in claim 1, is characterized in that: the other end of the traction rope (9) can be combined into one, and the length of the traction rope (9) is enough to fix the other end of the traction rope in a waterless area of the hydro-fluctuation belt above the normal water storage level of the reservoir.
5. The sample collection device based on the in-situ embedding mode before the flooding of the hydro-fluctuation belt of the reservoir as claimed in claim 1, is characterized in that: and a cutting edge (8) is arranged at the bottom of the outer layer side plate (6) of the flooding test box.
6. The method for collecting the sample by adopting the sample collecting device based on the in-situ embedding mode before the flooding of the hydro-fluctuation belt of the reservoir as claimed in any one of claims 1 to 5 is characterized in that: comprises the following steps:
the method comprises the following steps: dividing the hydro-fluctuation belt into n elevation intervals according to the requirements of experimental design, and setting different flooding time according to the experimental requirements and reservoir water level scheduling;
step two: after the hydro-fluctuation belts with different elevations are exposed, the hydro-fluctuation belts reach a sampling place determined in advance, original samples with the same size as the size of the flooding test box (1) are respectively and sequentially taken out from n elevation intervals of the divided hydro-fluctuation belts and the non-flooding area above the normal water storage level of the reservoir, and the taken original samples are sequentially placed into the flooding test box (1);
step three: sequentially pre-burying the flooding test boxes (1) filled with the undisturbed test samples in situ, combining the other ends of the hauling ropes (9) into one and numbering the same, and then fixing the same in a water-free flooding area of the hydro-fluctuation belt above the normal water storage level of the reservoir;
step four: after different elevation water-level zones of the reservoir are submerged, when a preset flooding time is reached, a monitoring ship is taken to hold an outer-layer side plate operating rod (5) of the flooding test box to embed an outer-layer side plate (6) of the flooding test box into a sliding rail (2), the outer-layer side plate operating rod (5) of the flooding test box is pushed to slide until a buckle (7) arranged at the top of the outer-layer side plate (6) of the flooding test box is fixedly connected with the flooding test box (1), and the outer-layer side plate (6) of the flooding test box is made to be the outermost side plate of the flooding test box (1);
step five: repeating the step four, completing the installation of the outer layer side plates (6) of the four side surface flooding test boxes, namely cutting off the root system by using the cutting edge (8) and completely plugging the communicating holes (4);
step six: the traction rope (9) is pulled at a constant speed to sequentially take out the flooding test box (1), and when the traction rope is taken out, the underwater traction process needs to be ensured to be slow so as to avoid disturbance on a sample in the flooding test box (1); and opening the outer layer side plates (6) of the four flooding test boxes in sequence, and taking out the test sample from the flooding test box (1).
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| CN202011018576.2A CN112098139A (en) | 2020-09-24 | 2020-09-24 | Sample collection device and method based on in-situ pre-embedding mode before reservoir hydro-fluctuation belt flooding |
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| CN202011018576.2A CN112098139A (en) | 2020-09-24 | 2020-09-24 | Sample collection device and method based on in-situ pre-embedding mode before reservoir hydro-fluctuation belt flooding |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048158A (en) * | 2012-12-25 | 2013-04-17 | 青岛农业大学 | Collection device of flooded plants |
| CN106472134A (en) * | 2016-09-18 | 2017-03-08 | 海南大学 | The method that a kind of falling zone muskeg recovers suitable species screening |
| CN107764607A (en) * | 2017-11-24 | 2018-03-06 | 云南大学 | A kind of reservoir drawdown band Greenhouse system and monitoring method |
| CN108398285A (en) * | 2018-05-25 | 2018-08-14 | 河南大学 | Device and its application method for radicula sampling and fine root production monitoring |
| CN209961771U (en) * | 2019-04-12 | 2020-01-17 | 西南大学 | Material exchange in-situ monitoring structure between overlying water and bottom mud of falling zone |
-
2020
- 2020-09-24 CN CN202011018576.2A patent/CN112098139A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048158A (en) * | 2012-12-25 | 2013-04-17 | 青岛农业大学 | Collection device of flooded plants |
| CN106472134A (en) * | 2016-09-18 | 2017-03-08 | 海南大学 | The method that a kind of falling zone muskeg recovers suitable species screening |
| CN107764607A (en) * | 2017-11-24 | 2018-03-06 | 云南大学 | A kind of reservoir drawdown band Greenhouse system and monitoring method |
| CN108398285A (en) * | 2018-05-25 | 2018-08-14 | 河南大学 | Device and its application method for radicula sampling and fine root production monitoring |
| CN209961771U (en) * | 2019-04-12 | 2020-01-17 | 西南大学 | Material exchange in-situ monitoring structure between overlying water and bottom mud of falling zone |
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Application publication date: 20201218 |