Blue carbon trial unit

Abstract

To solve the problem that a seaweed bed is not rapidly increased, the problem that seaweed is eaten by fish and sea urchin, and the problem that the optimum growing condition of seaweed is changed by global warming.SOLUTION: A floating type wooden artificial island is floated on the sea or a lake, a wooden frame is set in the sea or an underwater part of the wooden artificial island, a sheet is set on the wooden frame, culture soil is set on the sheet, and seaweed or fresh water algae are planted in the culture soil. A plurality of closed wooden boxes for keeping buoyancy are set in the wooden artificial island, the upper sides of the closed wooden boxes are set so as to be exposed on the sea, a hatch with a lid is set on the upper sides of the closed wooden boxes, water can be injected and discharged from the hatch to the inside of the closed wooden boxes by a pump, and the depth of the growth of the seaweed or the fresh water algae can be adjusted.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This invention proposes a technology in which a floating wooden artificial island is floated on the sea or a lake, culture soil (above the wooden frame) is placed in the underwater or sea part of the wooden artificial island, and seaweed or freshwater algae are planted therein, and CO2 is absorbed through photosynthesis by the seaweed or freshwater algae. Blue carbon is carbon absorbed and stored in the marine environment by marine organisms. CO2 emissions from human activities amount to approximately 9.4 billion tons per year in carbon equivalent, but it has been found that land-based plants such as forests absorb approximately 1.9 billion tons, and the ocean as a whole absorbs approximately 2.5 billion tons, of which approximately 1.1 billion tons is absorbed by blue carbon ecosystems. Carbon fixed by terrestrial plants is decomposed by microorganisms over a period of several decades and released into the atmosphere as CO2. On the other hand, carbon accumulated on the seafloor is decomposed very slowly, over a period of several thousand years, because microbial decomposition is inhibited by the anoxic conditions. Due to these characteristics, blue carbon is attracting attention as a new source of CO2 absorption, which is believed to be the cause of global warming. [Background technology]

[0002] Traditionally, seaweed that produces blue carbon has been left to grow in the natural environment, and is limited to shallow waters where sunlight reaches abundantly (0.2% of the entire ocean). With the construction of ports and the expansion of tourist and commercial facilities such as beaches, the area in which it grows has only decreased, never increased. In addition, there were times when the algae did not receive enough sunlight due to weather or tides, which prevented them from growing properly. Furthermore, red tides occurred and the algae were eaten by fish and sea urchins, which hindered their growth. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent application 2017-121921 Summary of the Invention [Problem to be solved by the invention]

[0004] We will solve the problems of seaweed beds not growing rapidly, seaweed being eaten by fish and sea urchins, and the optimal conditions for growing algae changing due to global warming. [Means for solving the problem]

[0005] A floating wooden artificial island is floated on the sea or on a lake, a wooden frame is set in the underwater or sea part of the wooden artificial island, a sheet is set thereon, and culture soil is further set thereon, and seaweed or freshwater algae are planted in the culture soil. Furthermore, a plurality of sealed wooden boxes are set on the wooden artificial island to maintain buoyancy, and the upper sides of the sealed wooden boxes are set so as to be exposed above sea level. A hatch with a lid is set on the upper side of the sealed wooden box, and water can be pumped into and discharged from the hatch into the sealed wooden box, making it possible to adjust the depth at which the culture soil and seaweed or freshwater algae are grown. Furthermore, netting will be installed around the entire perimeter of the wooden artificial island to protect the algae from fish. [Effects of the Invention]

[0006] With the rapid expansion of blue carbon trial units around the world, i.e., large-scale CO2 absorption, it is possible to achieve carbon neutrality before 2050, even if some fossil fuels remain. <Benefits of the Blue Carbon Trial Unit> · The area is limited, making it easy to provide nutrients (no waste). Netting makes it easy to prevent damage to fish. - You can choose the best lighting conditions (depth). · You can choose the algae species that absorbs the most CO2. · It is possible to select (change) appropriate algae species in response to the warming of seawater. · Drastic expansion in available areas. Even developing island nations that do not have any means of production can maintain their livelihoods. (Money will be paid according to the expected CO2 absorption amount due to the expansion of blue carbon. Build a system that can [Brief explanation of the drawings]

[0007] [Figure 1] An overview of the Blue Carbon Trial Unit is shown. [Figure 2] An overview of the wooden artificial island (wooden frame and sealed wooden box) is shown. DETAILED DESCRIPTION OF THE INVENTION

[0008] A floating wooden artificial island is floated on the sea or on a lake, a wooden frame is set in the underwater or sea part of the wooden artificial island, a sheet is set thereon, and culture soil is further set thereon, and seaweed or freshwater algae are planted in the culture soil. Furthermore, a plurality of sealed wooden boxes are set on the wooden artificial island to maintain buoyancy, and the upper sides of the sealed wooden boxes are set so as to be exposed above sea level. A hatch with a lid is set on the upper side of the sealed wooden box, and water can be pumped into and discharged from the hatch into the sealed wooden box, making it possible to adjust the depth at which the culture soil and seaweed or freshwater algae are grown. Furthermore, netting will be installed around the entire perimeter of the wooden artificial island to protect the algae from fish.

[0009] In Figure 1, a floating wooden artificial island is floated on the sea or a lake, and a wooden frame is set in the underwater or sea part of the wooden artificial island, a sheet is set on top of that, and then culture soil is set on top of that, and seaweed or freshwater algae are planted in the culture soil. Furthermore, a plurality of sealed wooden boxes are set on the wooden artificial island to maintain buoyancy, and the upper sides of the sealed wooden boxes are set so as to be exposed above sea level. A hatch with a lid is set on the upper side of the sealed wooden box, and water can be pumped into and discharged from the hatch into the sealed wooden box, making it possible to adjust the depth at which the culture soil and seaweed or freshwater algae are grown. The hatch has a buckle-type opening and closing lid with packing to prevent waves and rainwater from entering and to prevent the water inside the sealed wooden box from evaporating. Furthermore, netting will be installed around the entire perimeter of the wooden artificial island to protect the algae from fish. The blue carbon trial unit is fixed by setting up a concrete guide on the coast (basically in the sea), passing a log connected to the blue carbon trial unit through the concrete guide, and securing it with two wooden stoppers.This prevents it from moving horizontally (left and right, front and back), but allows it to move up and down in response to the ebb and flow of the tides. To achieve carbon neutrality, it is not enough to simply switch to all renewable energy; the total amount of CO2 emitted by animals in their daily lives and through various production activities accounts for about 40% of the total, so we will aim to achieve carbon neutrality by filling all areas except for necessary shipping routes and various ports with "Blue Carbon Trial Units" and create a fund with the United Nations (each country will contribute money), declare the establishment of a "Blue Carbon Trial Unit" to the UN, and if the UN confirms and gives the OK, we would like to create a system in which a relatively large amount of money will be paid (to enable developing island nations that do not have any means of production to somehow survive).

[0010] Figure 2 shows an overview of the wooden artificial island. A 12m square angle is assembled from wood to form the basic unit of the wooden artificial island. The wooden artificial island has six basic units, but by adding and expanding the basic units in the direction of the arrow, it can be made into a large artificial island of several kilometers or more. To expand the wooden artificial island, holes are drilled in the sides of the angles, and the angles are positioned with wooden rivets, and then the angles are bonded together to expand the island. In addition, the load weight can be balanced by increasing or decreasing the number of sealed wooden boxes (cubes with sides of 2m each, with a buoyancy of approximately 8t). [Industrial Applicability]

[0011] With the rapid expansion of blue carbon trial units around the world, i.e., large-scale CO2 absorption, it is possible to achieve carbon neutrality before 2050, even if some fossil fuels remain.

Claims

[Claim 1] This blue carbon trial unit involves floating a floating wooden artificial island on the sea or a lake, setting a wooden frame in the underwater or sea part of the wooden artificial island, setting a sheet on top of that, and then setting culture soil on top of that, and planting seaweed or freshwater algae in the culture soil, and also setting a plurality of sealed wooden boxes on the wooden artificial island to maintain buoyancy, and setting the upper sides of the sealed wooden boxes so that they are exposed above sea level, and setting hatches with lids on the upper sides of the sealed wooden boxes so that water can be pumped in and out of the sealed wooden boxes from the hatches, making it possible to adjust the depth at which the seaweed or freshwater algae are grown.

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