A method of repairing seagrass beds

Abstract

The invention relates to the field of ecological restoration, in particular to a restoration method for seagrass beds. The repairing method includes: acquisition of seagrass cloned rhizome fragments; seagrass culture; seagrass rhizome propagation; seagrass transplantation. Compared with the prior art, in the present invention, only one rhizome fragment is collected from each collection point, and the interval between each collection point is not less than 1 m, which avoids the damage to the donor seagrass bed to the greatest extent, and ensures the rhizome fragment. From different seagrass plants to ensure the restoration of the genetic diversity of seagrass beds; multiple propagation of seagrass rhizomes to ensure a sufficient number of cloned rhizome fragments for seagrass bed restoration; controlled-release fertilizers added to the substrate and plant growth The regulator can speed up the growth rate of seagrass and shorten the time required for the production of cloned fragments; when transplanting, the cloned rhizome fragments are fixed with a fixture to avoid the transplanted seagrass being washed away by the ocean current or easily dragged by benthic animals, and increasing the survival rate of transplantation.

Description

technical field [0001] The invention relates to the field of ecological restoration, in particular to a restoration method for seagrass beds. Background technique [0002] Seagrass is a clonal marine angiosperm, and the ecosystem formed by the continuous distribution of seagrass is called seagrass bed. Seagrass beds are precious "submarine forests" with important ecosystem services, which can purify water quality and remove pathogens that threaten humans and coral reefs in the ocean; provide food sources and habitats for offshore fish organisms, and increase biodiversity; Seabed sediment and coastal protection; also have an important carbon storage function. [0003] Seagrass beds worldwide are currently experiencing severe decline due to both natural and anthropogenic factors. Based on the importance of seagrass in maintaining marine ecosystem functions and providing services, many efforts and attempts have been made to prevent further loss of seagrass beds and restore de...

AI Technical Summary

Problems solved by technology

However, the availability of seeds and the adaptability of seedlings to environmental stresses in the early stages of colonization may largely limit the applicability of this method, as most studies have shown that the germination rate of seagrass seeds and the establishment rate of seedlings are very low. Low

At the same time, seed yields for most seagrass species are low, and excessive collection of seeds from natural seagrass beds for seagrass bed restoration purposes may affect the structure and genetic diversity of donor seagrass populations

[0005] Based on the insurmountable defects of the above-mentioned transplantation and seed methods for seagrass bed restoration, it is necessary to develop a sustainable seagrass bed restoration method that does less damage to the donor seagrass bed.

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