Systems and methods for growing vegetation are provided. The disclosed systems (100) and methods (1100, 1200) use rotating growth mats (102) and a cutting device (112). The rotating growth mats and cutting device can be coupled to an anaerobic digester (402) to generated methane gas using vegetation grown on the growth mats. The systems and methods may further use C artificial light sources (108) and a nutrients delivery system (110) to assist growth.

Open-sea aquaculture systems and methods are provided, which employ a semisubmersible platform with vertical columns, having storage and maintenance facilities for supporting aquaculture. Systems comprise a rigid assembly of aquaculture cages, with vertical cavities having forms configured to receive the corresponding vertical columns of the semisubmersible platform. The rigid assembly is mechanically connected to the semisubmersible platform in operational positions: (i) a raised position in which the rigid assembly encloses the corresponding vertical columns in the vertical cavities to limit a horizontal movement of the rigid assembly, and (ii) a lowered position in which the rigid assembly is below the corresponding vertical columns. Systems further comprise a control unit configured to control the mechanical position control mechanism to lower the rigid assembly upon occurrence of specified rough sea conditions, or whenever needed, and to raise the rigid assembly upon specified conditions.

A permeable floating concrete vessel for creating floating aquatic habitats is disclosed. The vessel includes an interior space to hold growth material and a plant. The vessels includes one or more channels so a root of the plant can extend through the channel and into a body of water in which the vessel is secured. The vessel is made from a buoyant material, such as water-permeable concrete material. In an exemplary embodiment the water-permeable concrete material includes a mixture of cement, glass microspheres, expanded glass aggregate, and microfibers. Two or more vessels may be connected together via a connecting member to form an array of the vessels.

Panel for floating cultivation of plants on water, including parallel grooves at a top side extending longitudinally, adapted for receiving a substrate and a number of plants or precursors in the substrate, each groove extending through the panel from a first top plane to a second parallel plane. The panel includes air chambers at a lower side extending substantially below the second plane, each of the air chambers allowing therein formation of air roots of plants supported in the substrate of the grooves. At the second plane, each groove is spaced apart from the circumferential side wall of the air chamber it debouches in when projected onto a plane normal to the longitudinal direction, each of the grooves including at least two side support surfaces extending parallel to the groove and below the top side, the side support surfaces adapted for substantially completely supporting the substrate in the groove.

The present invention relates to a floating hydrophyte planting device, comprising a height-adjustable support, a buoyant rope, a planting net rope, a stabilizing rope and hydrophytes. The height-adjustable support comprises a fixed part and a movable part. The fixed part comprises columns and inclined stayed and fixed steel wires. A sawtooth groove is arranged on one side face of the column in the height direction and has multiple notches at different heights. The movable part comprises a twisting pull rod. The twisting pull rod is provided with a cross locking column vertical to the body of the twisting pull rod. The locking column is limited in the notch. After the twisting pull rod is twisted, the cross locking column may separate from the notch; after the twisting pull rod moves in the vertical direction and is twisted again, the cross locking column is limited in another notch.

A floating wetland structure including a plurality of floating connected modules, each module having a frame that is at least partially hollow and a support structure adapted to support a plurality of containers for growing plants in the wetland.

Systems and methods for growing vegetation are provided. The disclosed systems (100) and methods (1100, 1200) use rotating growth mats (102) and a cutting device (112). The rotating growth mats and cutting device can be coupled to an anaerobic digester (402) to generated methane gas using vegetation grown on the growth mats. The systems and methods may further use C artificial light sources (108) and a nutrients delivery system (110) to assist growth.

A floating wetland structure designed for placement in a body of water includes: at least one surface module having an upper surface at or above the water level; at least one submerged module below the water level; and a frame interconnecting the surface module and submerged module. The frame maintains the surface module as horizontally offset from the submerged module such that an open water area is defined. The floating wetland structure can have an alternating arrangement of surface modules and submerged modules. The frame may include lengthwise extending members and laterally extending members. Horizontally extending lower members may be interconnected with the upper members by vertically extending members that maintain the submerged module below the water level.

A floating structure and method for obtaining same. The structure includes a first plurality of tubes and a second plurality of tubes. The second plurality of tubes are inserted into the first plurality of tubes to extend through the upper portion of same, and both sets of tubes are welded together. The ends of the tubes of the first plurality of tubes are closed in order to be used as flotation tanks when the floating structure is fitted out for such use. The method concerns locking the first plurality of tubes in place on the frame, with pairs of holes in each of the first plurality of tubes being aligned, and a corresponding tube of the second plurality of tubes being inserted through each pair of aligned holes by force. Each of the connection portions or parts contained in the tubes are welded on the periphery of the holes.

Panel for floating cultivation of plants on water, includes parallel grooves at a top side extending longitudinally, adapted for receiving a substrate and a number of plants or precursors in the substrate, each groove extending through the panel from a first top plane to a second parallel plane. The panel includes air chambers at a lower side extending substantially below the second plane, each of the air chambers allowing therein formation of air roots of plants supported in the substrate of the grooves. At the second plane, each groove is spaced apart from the circumferential side wall of the air chamber it debouches in when projected onto a plane normal to the longitudinal direction, each of the grooves including at least two side support surfaces extending parallel to the groove and below the top side, the side support surfaces adapted for substantially completely supporting the substrate in the groove.