Landscape drop structure beneficial to fish breeding

Abstract

The utility model relates to a landscape water drop structure beneficial to fish breeding, which comprises pebbles, the pebbles are stacked together from top to bottom to generate height difference with the downstream to form water drop, the upstream of the pebbles is fixed by cement mortar, the base part of the upstream of the stacked pebbles is coated with a waterproof coating, the bottom surface of the downstream of the stacked pebbles is provided with gravels, and the pebbles are fixed by cement mortar. And an artificial fish nest is arranged on the gravels. The riverway fish swimming device is beneficial to riverway fish swimming, a habitat is added for aquatic animals, fish breeding is facilitated, and the riverway fish swimming device plays an important role in ecology.

Description

Technical Field

[0001] The utility model relates to a novel landscape waterfall structure which is beneficial to fish reproduction, is suitable for river ecological restoration projects with water level differences, and specifically relates to a landscape waterfall structure which is beneficial to fish reproduction. Background Art

[0002] Waterfalls can store water, improve the ecological environment, create landscapes, regulate microclimate conditions, and enrich water tourism activities. In addition to flood control, irrigation, and drainage, ecological restoration has become an increasingly important function for natural rivers. Generally, waterfalls use the water level difference to form dynamic water, which has lively and active characteristics and is a common design technique in garden waterscape projects. The water management of traditional gardens is the expansion, refinement, and reproduction of the characteristics of natural mountains and rivers. The current waterfall landscaping techniques only focus on beauty and structural safety, ignoring the important ecological functions that waterfalls can play on fish. Utility Model Content

[0003] The utility model aims to provide a landscape waterfall structure which is beneficial to the migration of fish in rivers, adds habitats for aquatic animals, is convenient for fish reproduction and plays an important role in ecology.

[0004] The technical solution of this utility model:

[0005] A landscape waterfall structure that is beneficial to fish reproduction includes pebbles, which are stacked together from top to bottom to form a waterfall with a height difference with the downstream. The upstream of the pebbles is fixed with cement mortar, the upstream base of the stacked pebbles is coated with a waterproof coating, the downstream bottom surface of the stacked pebbles is provided with gravel, and an artificial fish nest is placed on the gravel.

[0006] Preferably, the artificial fish nests are arranged along the water flow direction, and the fish nest area is divided into three levels by waterfalls, including a first fish nest area, a second fish nest area and a third fish nest area.

[0007] Preferably, the water level difference between the first fish nest area and the second fish nest area is ≤30cm;

[0008] The water level difference between the second fish nest area and the third fish nest area is ≤30cm.

[0009] Preferably, the downstream bottom surface of the pebble stack is a spoon-shaped concave bottom surface.

[0010] Preferably, the angle between the cement mortar and the waterproof coating on the base is 30°.

[0011] Preferably, the artificial fish nest is made of poplar roots, palm bark, water grass or willow roots.

[0012] Preferably, the waterfall profile is straight, arc-shaped or irregularly curved.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Different fish have different requirements for water depth. In addition to artificial fish nests, specific fish have different requirements for the bottom of different rivers: silt, gravel, rocks, etc. The water flow rate affects whether the fish eggs sink or float, and then determines whether there is hypoxia. Water temperature and other factors are also influencing factors. For example, the eggs of some fish are sticky and need to adhere to gravel to develop. In ecological restoration projects with water level differences, the landscape waterfall structure that is beneficial to fish reproduction in the utility model not only safely and beautifully solves the water level difference, but also plays an important ecological function and improves the fish reproduction rate. The utility model is conducive to fish migration and reproduction, enhances the river habitat, and meets the requirements of ecological diversity in river management.

[0015] 1. Facilitate fish reproduction and migration. Placing artificial fish nests and setting up habitats for fish will facilitate fish migration and reproduction, increase fish survival rates, improve fish growth environment, and promote healthy development of aquatic ecology.

[0016] 2. Increase species diversity. Different fish have different requirements for water depth. The gradual change from deep to shallow water level at the bottom of the landscape waterfall enriches the living space of fish, provides a suitable water depth environment for different fish, and increases aquatic species.

[0017] 3. It is easy to monitor water quality. The healthy survival of fish is a recognition of water quality.

[0018] 4. Good landscape effect. The landscape waterfall with fish and water symbiosis is more in line with the natural habitat than a single high-drop waterfall, and it coexists harmoniously and is conducive to the ecological cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a longitudinal cross-sectional schematic diagram of the first embodiment of the utility model;

[0020] Figure 2 It is a longitudinal cross-sectional schematic diagram of the second embodiment of the utility model;

[0021] Figure 3 It is a side view of the second embodiment of the utility model;

[0022] Reference numerals:

[0023] 1. Pebbles; 2. Waterfall; 3. Gravel; 4. Cement mortar; 5. Waterproof coating; 6. Artificial fish nests; 8. The first fish nest area; 9. The second fish nest area; 10. The third fish nest area. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] Example 1

[0026] like Figure 1 As shown, a landscape waterfall structure that is beneficial to fish reproduction includes pebbles 1, which are stacked together from top to bottom to form a waterfall 2 with a height difference with the downstream. The upstream of the pebbles 1 is fixed with cement mortar 4, and the upstream base of the stacked pebbles 1 is coated with a waterproof coating 5. The downstream bottom surface of the stacked pebbles 1 is provided with gravel 3, and an artificial fish nest 6 is placed on the gravel 3. The downstream bottom surface of the stacked pebbles 1 is a spoon-shaped concave bottom surface, which is designed to provide fish with a space for migration and a water depth suitable for the reproduction of different fish, simulating the gradual structure of shallows and deep pools in nature. The angle between the cement mortar 4 and the waterproof coating 5 on the base is 30°, which can ensure that the fish can pass smoothly. The artificial fish nest 6 is made of poplar roots, palm bark, water grass or willow roots, can float in the water, and has a large area after being spread out, which is convenient for fish eggs to adhere to, and does not hurt the fish body when the fish chases and touches it.

[0027] The cross section of the waterfall 2 is straight, arc or special curve, forming a good landscape.

[0028] Example 2

[0029] like Figure 2 and Figure 3 As shown, in this embodiment, artificial fish nests 6 are arranged along the water flow direction on the basis of embodiment 1, and the fish nest area is divided into three levels by using a waterfall 2, including a first fish nest area 8, a second fish nest area 9 and a third fish nest area 10. The water level difference of the waterfall 2 between the first fish nest area 8 and the second fish nest area 9 is ≤30cm; the water level difference of the waterfall 2 between the second fish nest area 9 and the third fish nest area 10 is ≤30cm. According to the investigation and research on fish, the jumping ability of fish is limited, and the survival rate is greatly reduced after the height difference exceeds 30cm, which is less than 1 / 3.

[0030] Generally, the landscape waterfall structure usually used in river projects with water level difference is regular stepped, divided into single-stage waterfall and multi-stage waterfall. Considering safety and aesthetics alone, the water level difference is large, the fish living environment is not considered, and the ecological effect is poor. This embodiment considers the actual application of using three-stage waterfalls to control the height difference between each stage in the landscape waterfall, reasonably arranges the underwater form of the waterfall, simulates the bottom matrix of the natural waterfall rapids from deep pools to shallows, considers the fish permeability and migration reproduction, and sets artificial fish nests on the gravel at the bottom of the water to improve the habitat for aquatic animals, increase species diversity and add habitats, which is convenient for fish reproduction.

[0031] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A landscape waterfall structure that is beneficial to fish reproduction, characterized in that: The invention comprises pebbles (1), wherein the pebbles (1) are stacked together from top to bottom to form a waterfall (2) with a height difference with the downstream, the upstream of the pebbles (1) is fixed with cement mortar (4), the upstream base of the stacked pebbles (1) is coated with a waterproof coating (5), the downstream bottom surface of the stacked pebbles (1) is provided with gravel (3), and an artificial fish nest (6) is placed on the gravel (3).

2. A landscape waterfall structure that is beneficial to fish reproduction according to claim 1, characterized in that: The artificial fish nests (6) are arranged along the water flow direction, and the fish nest area is divided into three levels by using a waterfall (2), including a first fish nest area (8), a second fish nest area (9) and a third fish nest area (10).

3. A landscape waterfall structure that is beneficial to fish reproduction according to claim 2, characterized in that: The water level difference of the waterfall (2) between the first fish nest area (8) and the second fish nest area (9) is ≤30 cm; and the water level difference of the waterfall (2) between the second fish nest area (9) and the third fish nest area (10) is ≤30 cm.

4. A landscape waterfall structure that is beneficial to fish reproduction according to claim 1, characterized in that: The downstream bottom surface of the stacked pebbles (1) is a spoon-shaped concave bottom surface.

5. The landscape waterfall structure beneficial to fish reproduction according to claim 1, characterized in that: The angle between the cement mortar (4) and the waterproof coating (5) on the base is 30°.

6. A landscape waterfall structure beneficial to fish reproduction according to claim 1, characterized in that: The artificial fish nest (6) is made of poplar roots, palm bark, water grass or willow roots.

7. A landscape waterfall structure beneficial to fish reproduction according to claim 1, characterized in that: The cross section of the waterfall (2) is straight, arc or special curve.

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