Method for planting suaeda salsa in coastal beach and application

Abstract

The invention belongs to the technical field of plant planting and discloses a method for planting suaeda salsa in a coastal beach and an application. The method comprises the steps of 1, planting area selection, selecting an area suitable for planting from a mid-tide area and a high-tide area of an intertidal zone and building a wave blocking zone; 2, seeding, namely selecting temperature, seeding rate and seeding time; and 3, management after seeding, namely carrying out net covering, diversion and drainage for preventing flooding. The step 1 specifically comprises the content of selecting the area suitable for planting from the mid-tide area and the high-tide area of the intertidal zone; building the water blocking zone in a tidewater entering direction and building a dam in an offshoredirection in the planting area; or planting phragmites australis, high-stalk straws and phyllostachys pubescens in the tidewater entering direction in the planting area. According to the method, thesuaeda salsa is planted in a suitable environment on the beach, so that the growth area of the suaeda salsa is increased, the growth environment of the suaeda salsa on the beach is repaired and a support is provided for the stabilization of the biological diversity on the beach.

Description

technical field [0001] The invention belongs to the technical field of plant planting, and in particular relates to a planting method and application of Suaeda salsa in coastal flat salt land. Background technique [0002] At present, Suaeda salsa is a suitable plant for coastal tidal flats and a pioneer plant in saline-alkali tidal flats, which plays an important ecological role in tidal flat improvement and biodiversity. Coastal flats are divided into intertidal zone, subtidal zone and supratidal zone according to the law of tidal activity. The intertidal zone is divided into the following three zones according to the degree and duration of flooding: (1) high tide zone (upper zone): it is located in the uppermost part of the intertidal zone, the upper boundary is the spring tide high tide line, and the lower boundary is the neap tide orgasm line. (2) Mid-tide area (middle area): It accounts for most of the intertidal zone, with the upper boundary being the neap high tide...

AI Technical Summary

Problems solved by technology

The large-scale reduction of Suaeda salsa will inevitably have a negative impact on the survival of some rare birds

[0004] Through the above analysis, the existing problems and defects of the prior art are: (1) the existing Suaeda salsa planting technology in salt land is implemented under the current situation that can effectively regulate water management. Suaeda salsa is mainly cultivated for food, and it is often cultivated in greenhouse facilities

(2) In the practice of restoration of coastal wetland biodiversity, some units or regions have carried out the restoration of plant community habitats with Suaeda salsa as the main body, but the restoration areas are mainly in the tidal flat zone, and occasionally In the high tide area of ​​the intertidal zone, Suaeda salsa in the middle tidal zone of the intertidal zone relies on natural colonization to successfully form a stable community.

The main reason is that the seeds of Suaeda salsa are small and light, the seedlings are not firmly rooted, and it is easy to lose from the planting area after high-intensity seawater erosion

(3) The middle and high tide areas in the intertidal zone are often flooded for a long time. If the beach surface is not exposed to water during the time of sowing and emergence, it is difficult for Suaeda salsa to emerge and survive

[0005] The difficulty in solving the above problems and defects is: (1) How to effectively avoid long-term flooding in the planting area and ensure that the time period for the seedling emergence of Suaeda salsa is enough to expose to water

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