A grass seed rain collection device
By designing a grass seed rain collection device with a capture layer, a collection layer, and an isolation layer, the problems of existing devices being inconvenient to carry and easily damaged are solved, achieving stable and efficient seed collection and protection, and adapting to various grassland environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LANZHOU UNIV
- Filing Date
- 2024-04-02
- Publication Date
- 2026-06-05
AI Technical Summary
Existing grassland seed rain collection devices are bulky, inconvenient to carry, have complex structures, are time-consuming and labor-intensive to install, are susceptible to damage from extreme weather and animals, cannot be flexibly adjusted in size, and cannot effectively collect seeds of dwarf plants or prevent seeds from rotting.
A grass seed rain collection device was designed, comprising a capture layer, a collection layer, and an isolation layer. The capture layer has a hollowed-out structure and a pointed grass claw structure, the collection layer is made of a water-permeable material, and the isolation layer has drainage holes. It is fixed to the ground by a fixing device to adapt to various terrains.
It achieves stability and extends service life of the device, improves seed collection efficiency and protection capabilities, adapts to various grassland environments, uses lightweight and low-cost materials, and is suitable for different monitoring needs.
Smart Images

Figure CN118252019B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a grassland seed rain collection device, belonging to the field of seed rain collection technology. Background Technology
[0002] Currently, commonly used collection devices for collecting grassland seed rain include sticky traps (petition dishes), collection basins (plastic / clay), bucket-shaped collectors, funnel-shaped collectors, and nylon nets with frames. Existing grassland seed rain collection devices mainly have the following problems and disadvantages: (1) The collection devices are bulky and inconvenient to carry, have complex structures, and are time-consuming and labor-intensive to install and sample. (2) The size (area) of the collection devices is limited, and the size of the devices cannot be quickly and flexibly changed according to monitoring needs. (3) The collection devices are not easy to fix after being placed in the field and are easily damaged by extreme weather such as wind, rain, and hail, resulting in them being overturned, blown over, or moved. (4) The collection devices are easily trampled and damaged by animals after being placed in the field, have a short service life, and are prone to aging and damage. (5) Many collection devices (such as bucket-shaped and funnel-shaped ones) are covered with nets on top, which prevents animals from eating them, but the nets also block larger seeds from falling into the collector, resulting in incomplete seed collection. (6) If the collection device is too high (such as a bucket-shaped collector) and cannot be close to the ground, the seeds of short grass plants cannot be collected. (7) If water cannot be added in time (such as in a petri dish), the seeds will be lost due to prolonged soaking in water, or the soaking will cause the seeds to rot and lose their vitality. Summary of the Invention
[0003] This invention provides a grassland seed rain collection device that can solve the problems of existing grassland seed rain collection devices being unstable under field conditions, prone to aging and breakage, greatly affected by extreme weather conditions and terrain, and time-consuming and labor-intensive installation and sampling.
[0004] This invention provides a grassland seed rain collection device, the device comprising:
[0005] A capture layer has multiple open spaces, each with a capture structure; there is a gap between each open space and the corresponding capture structure, and the seeds captured by the capture structure can fall out of the capture layer through the gap;
[0006] A collection layer, located below the capture layer, is a water-permeable structure used to collect seeds that fall from the pores;
[0007] An isolation layer is disposed below the collection layer to prevent the collection layer from contacting the ground. It has multiple drainage holes for draining water that falls on the isolation layer.
[0008] A fixture for securing the capture layer, the collection layer, and the isolation layer to the ground.
[0009] Optionally, the isolation layer has a flat plate portion corresponding to the position of the collection layer and an extension portion connected around the edge of the flat plate portion, the outer edge of the extension portion being bent in an upward direction; the drain hole is provided on the flat plate portion.
[0010] Optionally, the device further includes:
[0011] A connection structure for connecting the collection layer and the isolation layer.
[0012] Optionally, the connection structure consists of multiple snap-fits; the multiple snap-fits are used to secure the collection layer and the isolation layer around their perimeters.
[0013] Optionally, the capturing structure is a sharp-angled grass claw structure.
[0014] Optionally, the roughness of the collecting layer is greater than the roughness of the isolation layer.
[0015] Optionally, the roughness of the collection layer is 5–15 μm.
[0016] Optionally, the collection layer is made of felt cloth with a thickness of 1.0 to 1.5 mm.
[0017] Optionally, there are four retainers, which are positioned at the four corners of the capture layer.
[0018] Optionally, the trapping layer is made of plastic; the isolation layer is made of waterproof material.
[0019] Optionally, the isolation layer is attached to the ground.
[0020] The beneficial effects that this invention can produce include:
[0021] The grassland seed rain collection device provided by this invention involves stacking a capture layer, a collection layer, and an isolation layer, and fixing them to the ground with a fixing device. The capture structure on the uppermost capture layer captures seeds, the middle collection layer allows for water permeability and rapid drying to collect the seeds, and the bottom isolation layer provides moisture and humidity protection. This invention is highly practical, has a long service life, and improves seed collection capacity while reducing environmental damage.
[0022] The grassland seed rain collection device provided by this invention features an uppermost capturing layer with a sharp, claw-like structure to effectively prevent animals from consuming the collected seeds. It also catches seeds with awns or other appendages, thus increasing collection efficiency. The middle collection layer is permeable and quick-drying, preventing seed viability reduction or mold growth due to waterlogging, thereby significantly improving seed protection and collection capacity. Finally, secured by a fixing device, this layered structure adheres tightly to the ground, preventing displacement and damage, and effectively collecting seeds from plants of varying heights. This allows the device to adapt to various grassland microenvironments.
[0023] The grassland seed rain collection device provided by this invention has a clear design principle, simple construction process, and uses inexpensive, flexible, and highly resilient materials, resulting in low manufacturing and maintenance costs. Furthermore, it requires no frequent maintenance or repair during actual field deployment and is suitable for seed rain collection experiments in various terrains of natural grasslands. Simultaneously, the device is easy to fix, does not alter the terrain features during deployment, and does not damage local vegetation. In practical use, the size of the collection device can be modified and customized according to the type and area of the monitoring plot, effectively improving the practical operability of grassland scientific experiments. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of the grassland seed rain collection device provided in an embodiment of the present invention;
[0025] Figure 2 This is a schematic diagram of the capture layer structure provided in an embodiment of the present invention;
[0026] Figure 3 This is a schematic diagram of the collection layer structure provided in an embodiment of the present invention;
[0027] Figure 4 This is a schematic diagram of the isolation layer structure provided in an embodiment of the present invention;
[0028] Figure 5 This is a schematic diagram of the snap-fit structure provided in an embodiment of the present invention;
[0029] Figure 6 This is a schematic diagram of the fixation structure provided in an embodiment of the present invention.
[0030] Figure label:
[0031] 1. Capturing layer; 2. Collection layer; 3. Isolation layer; 4. Sharp grass claw structure; 5. Extension; 6. Drain hole; 7. Buckle; 8. Fixing device. Detailed Implementation
[0032] The present invention will now be described in detail with reference to the embodiments, but the present invention is not limited to these embodiments.
[0033] This invention provides a grassland seed rain collection device, such as... Figures 1 to 6 As shown, the device includes:
[0034] The capturing layer 1 has multiple open spaces, each with a capturing structure. A gap exists between each open space and its corresponding capturing structure, allowing seeds captured by the capturing structure to fall through the gaps and out of the capturing layer 1. The capturing structure can be a sharp-angled grass claw structure 4.
[0035] Collection layer 2, located below capture layer 1, is a water-permeable structure used to collect seeds that fall from the pores.
[0036] An isolation layer 3 is located below the collection layer 2 to prevent the collection layer 2 from contacting the ground. It has multiple drainage holes 6 for draining water that falls on the isolation layer 3.
[0037] Fixture 8 is used to fix the capture layer 1, the collection layer 2 and the isolation layer 3 to the ground.
[0038] Furthermore, the device also includes:
[0039] A connection structure is used to connect the collection layer 2 and the isolation layer 3.
[0040] In practical applications, the connection structure can be either an adhesive structure or a snap-fit connection structure. When it is an adhesive structure, the middle collection layer 2 and the bottom isolation layer 3 can be directly glued together, making collection more convenient. When it is a snap-fit connection structure, multiple snap-fits 7 can be used to fix the collection layer 2 and the isolation layer 3 around their perimeter.
[0041] refer to Figure 1 As shown, the collection device of the present invention includes a seed rain capturing layer 1, a collection layer 2, an isolation layer 3, buckles 7, and fixers 8. The uppermost capturing layer 1 can be a capturing disc with petal-shaped pointed grass claw structures 4 on its surface. The middle collection layer 2 can be a collection disc, and the bottom layer is the isolation layer 3. The edge of the isolation layer 3 extends outward to form an extension 5, the outer edge of which bends upward and then outward. The seed rain collection layer 2 and the isolation layer 3 are connected and secured by buckles 7. Four fixers 8 are inserted diagonally into the soil along the device to fix the entire device to the ground surface, so that the isolation layer 3 adheres to the ground. During collection, seeds are captured by the seed rain capturing structure and then enter the second seed rain collection layer 2. Rainwater seeps down and is discharged through the circular drainage holes 6 on the surface of the isolation layer 3. The bent extension 5 of the isolation layer 3 effectively prevents seeds from spilling during collection. Finally, the amount of seed rain collected is collected and recorded at regular intervals. The size of the collection device can be set according to experimental monitoring needs. The collection device of the present invention adopts an assembly structure, which is small in size after disassembly, simple and portable, and convenient for field experiments.
[0042] refer to Figure 2 As shown, the aforementioned trapping layer 1 is made of plastic, with petal-shaped pointed grass claw structures 4 attached to the upper part. Each group consists of 8 grass claws, each 6.0 mm long, with the grass claws tilting upwards and outwards at an angle of 5° to 10°. The lower part of the trapping layer 1 has a hollow design, specifically with an array of squares arranged with a pore size of 5.0 mm. This type of trapping layer 1 can ensure that seeds of various dispersal methods (wind, animal dispersal, self-dispersal, etc.) are captured and fall smoothly from the pores into the seed rain collection layer 2 (taking alpine meadow plants as an example: the seed length of most species ranges from 0.7 mm to 5.0 mm). Moreover, the petal-shaped pointed grass claw structures 4 have hard and dense grass claws, which can prevent rodents and birds from feeding on and carrying the seeds that fall into the trapping layer 1 and the collection layer 2, and can also intercept seeds with dispersal appendages such as long awns.
[0043] refer to Figure 3 As shown, the collection layer 2 is made of felt cloth, and its roughness is greater than that of the isolation layer 3. The roughness of the collection layer 2 is generally 5μm to 15μm. The thickness of the collection layer 2 is 1.0mm to 1.5mm. Its surface structure is rough, with high friction. The fine and irregular hairs on the surface are conducive to trapping and retaining seeds of various shapes and sizes. The material is breathable and water-permeable, thin and quick-drying, so the trapped seeds are not easily deactivated or rotten.
[0044] refer to Figure 4 As shown, the isolation layer 3 is made of a waterproof material. Preferably, the isolation layer 3 is made of polyethylene; for example, it can be a PVC crystal board. The isolation layer 3 has a flat plate portion corresponding to the position of the collection layer 2 and an extension portion 5 connected around the edge of the flat plate portion. The outer edge of the extension portion 5 is bent upwards at an angle; drainage holes 6 are provided on the flat plate portion. The angle at which the extension portion 5 is bent outwards is 15° to 20°. Several circular drainage holes 6 are provided on the flat plate portion of the isolation layer 3. This structure is moisture-proof and damp-proof, facilitates rainwater drainage, and also prevents other factors such as surface or underground soil animals from affecting the seeds collected in the seed rain collection layer 2. In addition, the extension portion 5 can prevent seeds from spilling when collecting seeds. In practical applications, the isolation layer 3 can be replaced by other waterproof materials such as plastic sheeting or plastic mats.
[0045] refer to Figure 5 As shown, the aforementioned buckle 7 can be a U-shaped inner buckle; this U-shaped inner buckle is evenly placed 1cm inside the bends around the seed rain collection layer 2 and the isolation layer 3. The buckle 7 can tightly fix the collection layer 2 and the isolation layer 3, ensuring the structural stability of the device throughout the entire seed collection process.
[0046] refer to Figure 6As shown, four anchors 8 can be configured, positioned at the four corners along the diagonal of the capturing layer 1. The lower end of each anchor 8 has a sharp point, sloping downwards from the perimeter towards the center. The anchors 8 ensure the seed rain collection device is securely fixed to the ground, protected from damage by extreme weather and wild animals, and prevent displacement. In practical applications, the anchors 8 can be made of hard materials such as nails, steel nails, or wire; U-shaped nails can also be used instead.
[0047] The size of the seed rain capturing layer 1, collecting layer 2 and isolation layer 3 mentioned above can be changed according to specific working requirements.
[0048] The grassland seed rain collection device of the present invention is firmly fixed and is not damaged by extreme weather such as wind, rain, and hail, preventing it from being blown over, overturned, or displaced, and is safe and durable to use. At the same time, the device material and its design are resistant to animal trampling, prevent livestock damage or deformation, and are resistant to wind and sun exposure. They are not easy to age or break and can be reused for many years. Furthermore, it can prevent rodents and birds from eating the seeds in the collection device.
[0049] The grassland seed rain collection device of this invention is made of lightweight, permeable, and quick-drying material, which makes seeds less prone to germination or rotting, thus facilitating seed preservation. Simultaneously, the device can collect all seeds that fall into it, resulting in an extremely high seed collection rate. Furthermore, the collection device is simple, lightweight, and easy to carry, facilitating installation and sampling, saving time and effort. The material is soft and has excellent adhesion, allowing it to adhere tightly to the ground and making it suitable for various micro-topography. The device is inexpensive and can be standardized for production. The device specifications can be cut to size to meet specific monitoring needs, making it highly adaptable.
[0050] The above description is merely a few embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.
Claims
1. A grassland seed rain collection device, characterized in that, The device includes: The capture layer has multiple open spaces, each with a capture structure; there is a gap between each open space and the corresponding capture structure, and the seeds captured by the capture structure can fall out of the capture layer through the gap; the capture structure is a sharp-angled grass claw structure. A collection layer, located below the capture layer, is a water-permeable structure used to collect seeds that fall from the pores; An isolation layer, disposed below the collection layer, is used to separate the collection layer from the ground. It has multiple drainage holes for draining water that falls onto the isolation layer. The isolation layer has a flat plate portion corresponding to the position of the collection layer and an extension portion connected to the perimeter of the flat plate portion. The outer edge of the extension portion is bent upwards at an angle. The drainage holes are disposed on the flat plate portion. A fixture for securing the capture layer, the collection layer, and the isolation layer to the ground.
2. The apparatus according to claim 1, characterized in that, The device further includes: A connection structure for connecting the collection layer and the isolation layer.
3. The apparatus according to claim 2, characterized in that, The connection structure consists of multiple snap-fits; these snap-fits are used to secure the collection layer and the isolation layer around their perimeter.
4. The apparatus according to claim 1, characterized in that, The roughness of the collecting layer is greater than that of the isolation layer.
5. The apparatus according to claim 4, characterized in that, The roughness of the collection layer is 5~15μm.
6. The apparatus according to claim 4 or 5, characterized in that, The collection layer is made of felt cloth with a thickness of 1.0~1.5mm.
7. The apparatus according to claim 1, characterized in that, There are four fixtures, which are located at the four corners of the capture layer.
8. The apparatus according to claim 1, characterized in that, The trapping layer is made of plastic; the isolation layer is made of waterproof material.