CN110726579B - Floating island plant root in-situ layered sampler - Google Patents
Floating island plant root in-situ layered sampler Download PDFInfo
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- CN110726579B CN110726579B CN201911011701.4A CN201911011701A CN110726579B CN 110726579 B CN110726579 B CN 110726579B CN 201911011701 A CN201911011701 A CN 201911011701A CN 110726579 B CN110726579 B CN 110726579B
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- 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 discloses a floating island plant root in-situ layered sampler which comprises a floating island, an aquatic plant root limiter and a layered sealer, wherein a plurality of aquatic plant planting holes are formed in the floating island, a bayonet is formed in the left side surface of each aquatic plant planting hole of the floating island, a sampling hole is formed in the wall surface of the aquatic plant root limiter between two adjacent transverse slots and is sealed by a sealing film, the layered sealer comprises a vertical rod and a plurality of transverse cutters, a steering ring is arranged on the left side of the lower end of the aquatic plant root limiter, a threading hole is formed in the left side of the upper end of the aquatic plant root limiter, one end of a pulling wire is fixedly connected with the lower end of the vertical rod, the other end of the pulling wire passes through the threading hole after passing through the steering ring and is fixedly connected with a pull handle, and when the pulling wire is pulled by the pull handle, the lower end of the vertical rod can be forced to move leftwards. The invention has the advantage of being capable of obtaining the root system water bodies of the aquatic plants on the artificial floating island at different water depths.
Description
Technical Field
The invention belongs to the technical field of environmental monitoring, and particularly relates to an in-situ layered sampler for floating island plant roots.
Background
In recent years, one of the major environmental problems of water body pollution becomes literary, main rivers in various cities have more or less pollution problems, and because the content of nutrients such as nitrogen and phosphorus in the water body exceeds the self-purification capacity of the water body, algae excessively grow and breed, so that the dissolved oxygen and transparency of the water body are reduced, the water body becomes black and smelly, and the ecological environment of the water body is deteriorated.
The artificial floating island is mainly a water plant planting platform which is artificially constructed by absorbing eutrophic substances such as nitrogen, phosphorus, organic matters and the like in the plant growth process for water quality purification, and is one of common water ecological restoration means. At present, domestic artificial floating island is widely used, however, the research on the ecological environment of the plant root system of the artificial floating island is still in the primary stage, because in the process of plant growth, nitrogen and phosphorus in the water body can be absorbed, organic matters can be absorbed, the root environment of the plant can be distinguished from other parts of the water body, thereby forming a new ecological environment, the root water body of the plant is positioned under the floating island, the sampling is difficult, which is also a problem of the research on the ecological environment of the plant root system of the constraint artificial floating island, and because of the difference of water depth, the biological communities at different positions of the roots of the aquatic plants can also generate differences, even if the root ecological environment of the same aquatic plant is, the research can not be carried out in a general way, how to conveniently obtain the root system water bodies of different water depths of the aquatic plants on the artificial floating island, and the research is needed.
Disclosure of Invention
The invention aims to solve the technical problem that the root water body of a plant is positioned under a floating island and is difficult to sample in the prior art, and aims to provide a floating island plant root in-situ layered sampler capable of obtaining the root water bodies of aquatic plants at different water depths on an artificial floating island.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a floating island plant root in-situ layered sampler comprises an aquatic plant root limiter and a layered sealer, wherein the aquatic plant root limiter and the layered sealer are arranged in an aquatic plant planting hole formed in a floating island, the aquatic plant root limiter is positioned in the left half part of the aquatic plant planting hole, the layered sealer is positioned in the right half part of the aquatic plant planting hole,
the aquatic plant root limiting device is a cuboid container with an opening at the upper end, a transverse slot is formed in the right container wall of the aquatic plant root limiting device at intervals in the vertical direction, the transverse slot penetrates through the side wall of the aquatic plant root limiting device, a plurality of sampling holes are formed in the wall surfaces of the front container and the rear container of the aquatic plant root limiting device and located on the wall surface between every two adjacent transverse slots, and the sampling holes are sealed by sealing films;
the layered sealer comprises a vertical rod and a plurality of transverse cutters, the upper end of the vertical rod extends out of the planting hole of the aquatic plant, the lower end of the vertical rod is positioned below the lower end of the aquatic plant root limiter, the transverse cutters are fixedly arranged on the left side surface of the vertical rod, the width and the thickness of each transverse cutter are matched with the width and the height of each transverse slot, and the positions of the transverse cutters are in one-to-one correspondence with the positions of the transverse slots, so that when the vertical rod transversely moves leftwards, the transverse cutters can be inserted into the transverse slots, the length of each transverse cutter is matched with the left width and the right width of the inner cavity of the aquatic plant root limiter, and when the transverse cutters are completely inserted into the inner cavity of the aquatic plant root limiter, the transverse cutters can completely block the inner cavity of the aquatic plant root limiter;
the lower end of the vertical rod is provided with a pulling line, the left side of the lower end of the aquatic plant root limiter is provided with a steering ring, the left side of the upper end of the aquatic plant root limiter is provided with a threading hole, one end of the pulling line is fixedly connected with the lower end of the vertical rod, and the other end of the pulling line penetrates out through the threading hole after bypassing the steering ring and is fixedly connected with a handle.
Preferably, the inner side surface of the left half part of the aquatic plant planting hole is symmetrically provided with bayonets, the upper end of the aquatic plant root limiter is provided with clamping protrusions, and the clamping protrusions are clamped in the bayonets.
Preferably, the upper end of the vertical rod is connected with a push handle, and when the push handle is pushed leftwards, the upper end of the vertical rod can be forced to move leftwards.
Preferably, the transverse cutter comprises a cutter head and a cutter body, the cutter body is in a sheet shape, the right end of the cutter body is fixedly connected with the vertical rod, the left end of the cutter body is integrally fixed with the cutter head, the outer surface of the cutter body is coated with an elastic sealing layer, a cutter accommodating groove for accommodating the cutter head is formed in the position, corresponding to the transverse slot, of the left side surface of the inner wall of the left container wall of the aquatic plant root limiter, after the cutter body penetrates through the inner cavity of the aquatic plant root limiter, the cutter head can cut off roots of aquatic plants and is inserted into the cutter accommodating groove, the elastic sealing layer on the outer surface of the cutter body is in sealing fit with the inner wall of the aquatic plant root limiter, and meanwhile, the transverse slot is sealed.
Preferably, the inner hole wall of the right half part of the aquatic plant planting hole is provided with a transverse slide rail in a left-right direction, the upper part of the vertical rod is provided with a slide block clamped in the transverse slide rail, the upper part of the vertical rod is clamped in the transverse slide rail to slide left and right, and the vertical rod can be separated from the transverse slide rail when sliding to the left end or the right end of the transverse slide rail.
Preferably, the floating island is a plastic floating island.
Preferably, the aquatic plant planting hole is used for planting plants only in the aquatic plant root limiter, and the part of the aquatic plant planting hole on the right half part of the aquatic plant root limiter is not used for planting plants.
Preferably, the aquatic plant root limiter is a transparent glass tube.
The invention has the beneficial effects that:
1. this chinampa root in situ layering sampler improves the chinampa, makes aquatic plant root inject ware can direct fixed mounting on the chinampa, and aquatic plant is when planting, just plants in aquatic plant root inject ware, and convenient follow-up takes a sample to aquatic plant root.
2. This chinampa roots of plants normal position layering sampler, aquatic plant roots of plants qualifier has set up horizontal slot, when the plant normally grows, river water can be followed horizontal slot business turn over aquatic plant roots of business turn over and qualifies the ware, and the layering obturator has then set up the transverse knife that corresponds with horizontal slot, when taking a sample to aquatic plant roots, transverse knife inserts horizontal slot, can seal horizontal slot, also cut off the roots of plants in the aquatic plant roots qualifier simultaneously, still separate aquatic plant roots of people qualifier for the cavity of one section mutual sealing, thereby reach the purpose of the in situ layering sample of roots of plants.
3. This chinampa root plant normal position layering sampler sets up tractive line and horizontal slip rail, upwards tractive simultaneously and tractive line and push away vertical pole left, can let the even horizontal removal of layering closure to aquatic plant root delimiter, gives the sufficient power of horizontal cutter simultaneously and cuts off the root of plant.
Drawings
Fig. 1 is a schematic structural diagram of a floating island in the present embodiment.
FIG. 2 is a top view of an aquatic plant root retainer.
FIG. 3 is a side view of an aquatic plant root retainer and a layered closure.
FIG. 4 is a schematic view of the insertion of the layered closure into the aquatic plant root restrictor.
Detailed Description
The technical solution of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.
In order to make the disclosure of the present invention more comprehensible, the following description is further made in conjunction with fig. 1 to 4 and the detailed description.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the floating island plant root in-situ layered sampler in the present embodiment includes an aquatic plant root limiter 2 and a layered closure 3, which are installed in an aquatic plant planting hole 11 formed in a floating island 1, wherein the aquatic plant root limiter 2 is located in the left half of the aquatic plant planting hole 11, and the layered closure 3 is located in the right half of the aquatic plant planting hole 11.
The floating island 1 is a plastic floating island. The floating island 1 is provided with a plurality of aquatic plant planting holes 11, the aquatic plant planting holes 11 only plant in the aquatic plant root limiter 2, and the part of the aquatic plant planting holes 11 in the right half part of the aquatic plant root limiter 2 is not planted. This embodiment improves the chinampa, makes aquatic plant root inject ware can direct fixed mounting on the chinampa, and aquatic plant is when planting, just plants in aquatic plant root inject ware, and convenient follow-up samples aquatic plant root.
As shown in figure 1, bayonets 12 are symmetrically arranged on the inner side surface of the left half part of the aquatic plant planting hole 11, a clamping protrusion 21 is formed at the upper end of the aquatic plant root limiter 2, and the clamping protrusion 21 is clamped in the bayonets 12.
As shown in fig. 2 and 3, the aquatic plant root limiter 2 is a rectangular parallelepiped container with an open upper end, a transverse slot 22 is formed in the right container wall of the aquatic plant root limiter 2 at intervals in the vertical direction, the transverse slot 22 penetrates through the side wall of the aquatic plant root limiter 2, a plurality of sampling holes 23 are formed in the front and rear container wall surfaces of the aquatic plant root limiter 2, the sampling holes 23 are located on the wall surface between two adjacent transverse slots 22, and the sampling holes 23 are sealed by a sealing film.
The aquatic plant root restrictor 2 is a transparent glass tube in this embodiment.
As shown in fig. 2 and 3, the layered sealer 3 includes a vertical rod 31 and a plurality of transverse cutters 32, the upper end of the vertical rod 31 extends out of the aquatic plant planting hole 11, the lower end of the vertical rod 31 is located below the lower end of the aquatic plant root limiter 2, the transverse cutters 32 are fixedly installed on the left side surface of the vertical rod 31, the width and thickness of the transverse cutters 32 are adapted to the width and height of the transverse slots 22, and the positions of the transverse cutters 32 and the positions of the transverse slots 22 correspond to each other one by one, so that when the vertical rod 31 moves leftwards, the transverse cutters 32 can be inserted into the transverse slots 22, the length of the transverse cutters 32 is adapted to the left and right width of the inner cavity of the aquatic plant root limiter 2, and when the transverse cutters 32 are completely inserted into the inner cavity of the aquatic plant root limiter 2, the transverse cutters 32 can completely block the inner cavity of the aquatic plant root limiter 2.
The lower end of the vertical rod 31 is provided with a pulling line 33, the left side of the lower end of the aquatic plant root limiter 2 is provided with a steering ring 24, the left side of the upper end of the aquatic plant root limiter 2 is provided with a threading hole 25, one end of the pulling line 33 is fixedly connected with the lower end of the vertical rod 31, the other end of the pulling line passes through the threading hole 25 after bypassing the steering ring 24, and is fixedly connected with a handle 26, and when the handle 26 pulls the pulling line 33, the lower end of the vertical rod 31 can be forced to move leftwards. The upper end of the vertical rod 31 is connected with a push handle 34, and when the push handle 34 is pushed leftwards, the upper end of the vertical rod 31 can be forced to move leftwards.
As shown in fig. 3, the transverse cutter 32 includes a cutter head 32a and a cutter body 32b, the cutter body 32b is in a sheet shape, the right end of the cutter body 32b is fixedly connected with the vertical rod 31, the left end of the cutter body is integrally fixed with the cutter head 32a, the outer surface of the cutter body 32b is coated with an elastic sealing layer, a cutter accommodating groove 27 for accommodating the cutter head 32a is arranged at the left side surface of the inner wall of the left container wall of the aquatic plant root limiter 2 corresponding to the transverse slot 22, after the cutter body 32b penetrates the inner cavity of the aquatic plant root limiter 2, the cutter head 32a can cut off the roots of the aquatic plants and is inserted into the cutter accommodating groove 27, the elastic sealing layer on the outer surface of the cutter body 32b is in sealing fit with the inner wall of the aquatic plant root limiter 2, and simultaneously seals the transverse slot 22.
As shown in fig. 3 and 4, a lateral slide rail 13 is disposed on the inner hole wall of the right half of the aquatic plant planting hole 11, a slider is disposed on the upper portion of the vertical rod 31, the slider is engaged with the lateral slide rail 13, the upper portion of the vertical rod 31 is engaged with the lateral slide rail 13 to slide left and right, and the vertical rod 31 can be disengaged from the lateral slide rail 13 when sliding to the left end or the right end of the lateral slide rail 13.
The in-situ layered sampler for the roots of the floating island plants in the embodiment is used by the following method:
the floating island 1 is provided with a plurality of aquatic plant planting holes 11, a plurality of aquatic plant planting holes 11 are selected, the aquatic plant root limiter 2 is installed, the rest of the aquatic plant root limiter 2 is not installed, a traction line 33 of the layered sealer 3 firstly passes through a steering ring 24 before the aquatic plant root limiter 2 enters water, the upper end of the traction line 33 passes through a threading hole 25 to be fixedly connected with a handle 26, then the aquatic plant root limiter 2 is installed in the aquatic plant planting holes 11, the layered sealer 3 is placed in the aquatic plant planting holes 11 and is positioned at the right side of the aquatic plant root limiter 2, the upper part of a vertical rod 31 is inserted into a transverse sliding rail 13, aquatic plants are planted on the floating island, the aquatic plant planting holes 11 without the aquatic plant root limiter 2 are installed, the plants can be planted in the whole aquatic plant planting holes 11, the aquatic plant planting holes 11 with the aquatic plant root limiter 2 are installed, the plants are planted in the aquatic plant root limiter 2, when the plants grow to a certain stage, the worker samples the aquatic plants growing in the aquatic plant root limiter 2, pushes the push handle 34 leftwards, pulls the pull rope 33 upwards by the pull handle 26, forces the upper end and the lower end of the vertical rod 31 to move leftwards, the cutter body 32b cuts into the transverse slot 22 and cuts off the plant roots in the aquatic plant root limiter 2, the inside of the aquatic plant root limiter 2 is divided into a plurality of sealed spaces, when the vertical rod 31 leans against the right side surface of the aquatic plant root limiter 2, the cutter head 32a is just completely inserted into the cutter accommodating groove 27, and the upper end of the vertical rod 31 is pulled out from the left end of the transverse slide rail 13. Directly cutting off the parts above the roots of the aquatic plants, integrally lifting the aquatic plant root limiter 2 and the layered sealer 3 out of the aquatic plant planting hole 11, namely obtaining aquatic plant root system samples sampled in situ in a layered mode, and taking plant root system water of each layer through the sampling hole 23 when research is carried out.
Where not otherwise indicated herein or enabled by the prior art, it will be appreciated that modifications and variations may be resorted to without departing from the scope of the invention as set forth in the appended claims.
Claims (8)
1. The utility model provides a chinampa root plant root normal position stratified sampling ware which characterized in that: comprises an aquatic plant root limiter (2) and a layered sealer (3) which are arranged in an aquatic plant planting hole (11) arranged on a floating island (1), wherein the aquatic plant root limiter (2) is positioned on the left half part of the aquatic plant planting hole (11), the layered sealer (3) is positioned on the right half part of the aquatic plant planting hole (11),
the aquatic plant root limiter (2) is a cuboid container with an opening at the upper end, a transverse slot (22) is formed in the right container wall of the aquatic plant root limiter (2) at intervals in the vertical direction, the transverse slot (22) penetrates through the side wall of the aquatic plant root limiter (2), a plurality of sampling holes (23) are formed in the front container wall and the rear container wall of the aquatic plant root limiter (2), the sampling holes (23) are located on the wall between every two adjacent transverse slots (22), and the sampling holes (23) are sealed by sealing films;
the layered sealer (3) comprises a vertical rod (31) and a plurality of transverse cutters (32), the upper end of the vertical rod (31) extends out of the aquatic plant planting hole (11), the lower end of the vertical rod (31) is positioned below the lower end of the aquatic plant root limiter (2), the transverse cutters (32) are fixedly arranged on the left side surface of the vertical rod (31), the width and the thickness of the transverse cutters (32) are adapted to the width and the height of the transverse slots (22), and the positions of the transverse cutters (32) correspond to the positions of the transverse slots (22) one by one, when the vertical rod (31) moves leftwards, the transverse cutter (32) can be inserted into the transverse slot (22), the length of the transverse cutter (32) is adapted to the left and right width of the inner cavity of the aquatic plant root limiter (2), when the transverse cutter (32) is completely inserted into the inner cavity of the aquatic plant root limiter (2), the transverse cutter (32) can completely block the inner cavity of the aquatic plant root limiter (2);
vertical pole (31) lower extreme is equipped with one and pulls off line (33), the left side of aquatic plant root inject ware (2) lower extreme is equipped with one and turns to ring (24), a through wires hole (25) have been seted up on aquatic plant root inject ware (2) upper end left side, pull off line (33) one end and vertical pole (31) lower extreme fixed connection, the other end is walked around behind steering ring (24), wear out through-wire hole (25), with a handle (26) fixed connection, handle (26) when pulling pull off line (33), can force vertical pole (31) lower extreme to remove left.
2. The floating island plant root in-situ layered sampler according to claim 1, wherein bayonets (12) are symmetrically formed on the inner side surface of the left half of the aquatic plant planting hole (11), a clamping protrusion (21) is formed at the upper end of the aquatic plant root limiting device (2), and the clamping protrusion (21) is clamped in the bayonets (12).
3. The floating island plant root in-situ layered sampler according to claim 1, wherein a push handle (34) is connected to the upper end of the vertical rod (31), and when the push handle (34) is pushed to the left, the upper end of the vertical rod (31) can be forced to move to the left.
4. The floating island plant root in-situ layered sampler according to claim 1, wherein the transverse cutter (32) comprises a cutter head (32a) and a cutter body (32b), the cutter body (32b) is sheet-shaped, the right end of the cutter body (32b) is fixedly connected with the vertical rod (31), the left end of the cutter body is integrally fixed with the cutter head (32a), the outer surface of the cutter body (32b) is coated with an elastic sealing layer, a containing groove (27) for containing the cutter head (32a) is arranged at the position, corresponding to the transverse slot (22), of the left side surface of the inner wall of the left container wall of the aquatic plant root limiter (2), after the cutter body (32b) penetrates into the inner cavity of the aquatic plant root limiter (2), the cutter head (32a) can cut the roots of the aquatic plants and is inserted into the containing groove (27), the elastic sealing layer of the outer surface of the cutter body (32b) is in sealing fit with the inner wall of the aquatic plant root limiter (2), while also sealing the transverse slot (22).
5. The floating island plant root in-situ layered sampler according to claim 1, wherein the inner hole wall of the right half of the aquatic plant planting hole (11) is provided with a left-right-oriented transverse slide rail (13), the upper part of the vertical rod (31) is provided with a slide block clamped in the transverse slide rail (13), the upper part of the vertical rod (31) is clamped in the transverse slide rail (13) to slide left and right, and the vertical rod (31) can be separated from the transverse slide rail (13) when sliding to the left end or the right end of the transverse slide rail (13).
6. The floating island plant root in-situ layered sampler according to claim 1, wherein the floating island (1) is a plastic floating island.
7. The floating island plant root in-situ layered sampler according to claim 1, wherein the aquatic plant planting hole (11) plants only in the aquatic plant root delimiter (2), and the part of the aquatic plant planting hole (11) on the right half of the aquatic plant root delimiter (2) is not planted.
8. The floating island plant root in-situ layered sampler according to claim 1, wherein the aquatic plant root delimiter (2) is a transparent glass tube.
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| CN201911011701.4A CN110726579B (en) | 2019-10-23 | 2019-10-23 | Floating island plant root in-situ layered sampler |
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| CN201911011701.4A CN110726579B (en) | 2019-10-23 | 2019-10-23 | Floating island plant root in-situ layered sampler |
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| CN112129571B (en) * | 2020-09-24 | 2022-05-17 | 三峡大学 | Underwater sample collection device and method suitable for hydro-fluctuation belt |
| CN112266075B (en) * | 2020-09-28 | 2022-11-29 | 南京信息职业技术学院 | Aquatic plant sampling floating island and use method |
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