Method for repairing seaweed bed in marine ecosystem

Abstract

The invention discloses a method for repairing a seaweed bed in a marine ecosystem, relates to the technical field of environmental governance, and is characterized by comprising the steps of seedlingselection, transplanting preparation, transplanting management, fertilization management and monitoring management, the historical distribution type of seaweed is selected through matching, and seaweed bed repairing is carried out in an appropriate, stable and historical reference area; the survival rate and the growth quality are good. Through a scientific forest thinning technology, the growthof original communities is not influenced, the healthy growth of the original communities is promoted, and the allopatric propagation effect of seaweed is remarkably improved; through substrate fixation optimization, microenvironment water flow is slowed down, suspended solids are settled, nutritive salt is caught, the effects of stabilizing the substrate and fixing seaweed plants are achieved, meanwhile, the iron ion concentration of a plant growth limiting factor in the sea is increased, and seaweed growth is promoted. Root and stem management and leaf trimming management are conducted on seaweed, stable damage of hydrodynamic force to the seaweed is reduced, it is guaranteed that roots, stems and tender leaves of seaweed plants fully absorb nutrition, and the survival rate of the seaweed is increased.

Description

technical field [0001] The invention relates to the technical field of environmental governance, more specifically, it relates to a method for repairing seagrass beds in marine ecosystems. Background technique [0002] The marine ecological environment is the basic condition for the survival and development of marine organisms. Any change in the ecological environment may lead to changes in the ecosystem and biological resources. The organic unity of seawater and its flow and exchange and other physical, chemical, biological, and geological organic connections , so that the integrity of the ocean and its constituent elements are closely related, and any change in a certain element in the sea area cannot be limited to the specific location where it occurs, and may have direct or indirect impacts on adjacent sea areas or other elements. effect. [0003] The break of the marine ecological balance generally comes from two reasons: one is the change of nature itself, such as nat...

AI Technical Summary

Problems solved by technology

The second is from human activities, one is the unreasonable and super-intensive exploitation of marine biological resources, such as the excessive fishing in offshore areas, which has caused a serious decline in marine fishery resources; the other is the inappropriate use of marine environmental space , leading to the occurrence of sea area pollution and the deterioration of the ecological environment, such as reclamation and breeding of coastal wetlands, channel expansion, land reclamation, etc. will inevitably change the shape of the coast, reduce the tortuosity of the coastline, endanger the seagrass bed, and lead to the reduction of the habitat of marine organisms , destroy the marine ecological environment, reduce marine biodiversity, etc.

However, since the seagrass bed belongs to the junction of land and sea, with the intensification of human disturbance and the frequent occurrence of natural disasters, the global seagrass bed has been decreasing at a rate of 7% per year since 1990, and up to 29% of the seagrass field has disappeared so far. About 14% (10 species) of seagrass species are at risk of extinction

Images