A method for accelerating the growth of pioneer plant Suaeda salsa in coastal land reclamation

Abstract

The invention relates to a method for accelerating insertion of a pioneer plant suaeda salsa in a coastal reclamation land area. The method comprises the following steps that 1, land levelling is performed; 2, uniform scribing is made according to the separation distance of 25-75 cm; 3, down digging is performed along an oblique plane every two scribing zone, soil dug out is uniformly piled in adjacent non-dug scribing zones, wherein dug bottom surface slope angles are greater than or equal to 105 degree but are smaller than or equal to 135 degrees, and the digging depth is 7.5-17.5 cm; 4, thedug soil oiled in the non-dug scribing zones are spread flat and ridged to form ridge tables; 5, adjacent ridge table tops are covered with film every two ridge table tops ridge by ridge; 6, strip-shaped holes are formed at the positions, 1 / 2-1 / 3 away from the bottom of furrowed land, on two side faces of each uncovered ridge table; 7, suaeda salsa seeds are sowed in the strip-shaped holes according to the amount of 10-20 g / m; 8, the side faces of the uncovered ridge tables are pat-pressed and levelled. The method is simple in structure and good in operability, and quick desalination and desalting of the coastal reclamation soil are achieved.

Description

Technical field [0001] The invention relates to a method for accelerating the growth of Suaeda salsa, in particular to a method for accelerating the growth of Suaeda salsa in a coastal reclaimed land area. Background technique [0002] Coastal dredging soil is the sedimentary soil formed by hydraulic dredging by using the seabed mud dredged from offshore. Affected by the seawater environment, the dredger fill has high salt content, strong alkalinity, fine particles (mainly clay particles), large water holding capacity, high ineffective pore water content, tight texture, and difficult for plants to survive. Generally, within 2 years of hydraulic filling, the ground surface is basically in a state of bare land without plants. For 3-4 years, the pioneer plant Suaeda salsa has invaded and grown scattered, but the biomass is extremely low. Due to the scarcity of vegetation, the Under the conditions of evaporation and evaporation, the salinity of dredger fills only in the surface and ...

AI Technical Summary

Problems solved by technology

Under natural conditions, the quality improvement of dredger reclamation depends entirely on the growth and growth of the pioneer plant Suaeda salsa, but the idle time in the early stage is too long, which cannot meet the speed of urban ecological construction in the existing dredger reclamation land area. Therefore, reclamation from the sea In the early stage, there is an urgent need for a rapid and efficient technical method to accelerate the invasion and colonization of the pioneer plant Suaeda salsa in coastal dredging and filling soil