What are the living habits of tidal flat plants?

Resistant to water and moisture, salt and alkali, wind and drought.

Summary. There are also marine plants, pizza bushes, anemones, and more.

There are also marine plants, pizza bushes, anemones, and more.

Marine plants are seaweed plants, some of which are draining plants that can grow in seawater, like kelp, seaweed, profibrous algae, diatoms, etc.; The pizza bush is a deciduous shrub located on coastal beaches with oval or ovate leaves, smaller, and creeping stems and branches; Anemone is a long-flowering herb that grows on the beach and has flowers consisting of 3 to 5 white petals with scaly leaves.

Cultivation of marine animals and plants under specific conditions in intertidal tidal flats. Shellfish culture is mainly carried out under suitable tidal zone and substrate conditions, but also includes other species of culture that cannot grow on sediment substrate and is based on tidal flats. For example, the stone culture of oysters, the semi-floating raft culture of seaweed, and the embankment culture of fish and shrimp.

Due to the different sediment content of the substrate, the varieties suitable for breeding are different, and the methods and measures adopted are also different.

In the early days, tidal flat culture was the use of the original tidal flats and the transplantation of suitable species (including naturally growing species on the tidal flats) such as razor clams and cockles. With the improvement of human understanding of nature, bamboo cutting, tree branches, rocks, stone planting, bridge stones, fences, fixed rafts, floating rafts to cultivate shellfish and algae, as well as embankment and water storage, and the cultivation of fish, shrimp and shellfish in the embankment harbor have been gradually created. At the end of the 50s of the 20th century, the growth and development of shellfish larvae were used to carry out flat sowing and flat furrow seedling culture.

Since the 70s, due to the progress of artificial seedling technology for a variety of shellfish, the cultivation technology has also been improved.

Seedlings have developed from mainly collecting natural seedlings to semi-artificial seedlings and factory seedlings. Extensive aquaculture without feeding, without fertilization or choosing to use natural fertile sea areas has developed to intensive intensive culture with artificial control of stocking density, artificial fertilization and feeding of bait, and the use of parasitic fertilizer, fattening, fertilization and artificial overwintering and other measures have improved product quality and yield. In the 80s, shrimp ponds (including the old salt pans) were built in the intertidal tidal flats for shrimp farming and marketing, and the rapid development of shrimp production on the intertidal tidal flats reached an unprecedented scale.

The cultivation method has also gradually tended from the original natural ecological type (natural polyculture) to monoculture. There has been a transition to polyculture, rotation and interculture. Stock-stocked varieties are no longer limited to local natural populations, through transplantation and introduction, cross-breeding and other means, open up a new way to breed excellent varieties, especially the application of bioengineering technology, has induced the cultivation of haploid or polyploid new varieties.

These new varieties are superior to natural varieties in terms of growth, adaptation, disease resistance, product quality and appearance.

Widely salty, like burrowing, the hole is generally Y-shaped, composed of orifice, positive orifice and rear orifice. The positive orifice is used for inlet and out, and the rear orifice is used for ventilation. Crawling or jumping on water, sand, rocks, relying on pectoral fins and caudal peduncles; They crawl on mud to feed on benthic diatoms, blue-green algae, and also eat a small amount of copepods and organic matter.

It also preys on small fish or insects. When in danger, get into the dirt or jump away. Although the tidal flat fish is small, but rich in nutrition, delicious taste, it is the tribute of seafood, the current market price is about 90-110 yuan kilograms, and it has a greater prospect for aquaculture development.

Reclamation of tidal flats refers to the construction of embankments to block the sea in the sections along the tidal flats with large differences in the ebb and flow tides, so as to prevent tidal inundation and discharge the seawater in the embankment, creating land for agricultural production. Excavate river channels in the reclamation area, and build sluices at the mouth of the sea to create tidal flat resources.

It prevents the tide from backing up along the river, and facilitates the removal of large amounts of salt from waterlogging and newly reclaimed land during the rainy season. It is also necessary to build an irrigation diversion canal system, establish a corresponding drainage system to drain salt and drain salt, and dig a seepage interception ditch at the upper side of the reclamation area to prevent seawater from continuing to replenish salt to the reclamation area. Or excavate a burrow ditch in the field, form a strip field and build a weir on the flat land on the strip field, use rainfall to store dilute salt, after a rainy season, the desalination rate of 1m soil layer can reach 10-30%.

The tidal flats in the reclamation area can be planted directly with rice, and if the land can be prepared and ploughed in advance, soaked in the field and washed salt, and the irrigation is proper and the management is timely during the growth period, the high yield can be obtained in the current year. The salt content of 1m of soil can be reduced by 50-80%. In the early stage of reclamation, due to the high salt content of the topsoil, the water should be changed in time to ensure the normal growth of rice.

Salt-tolerant crops or a certain percentage of green manure can also be planted to improve the soil. China's Xiaoshan in Zhejiang, Sheyang in Jiangsu, Xingcheng in Liaoning and other coastal mudflats have been partially reclaimed and utilized. As early as the 16th and 19th centuries, Japan reclaimed 310,000 hectares of tidal flats near Kojima.

The tidal flats should be comprehensively developed and utilized, and suitable for agriculture should be used for agriculture, fishing for fishing, and salt for salt, and shelterbelts should be built to improve the ecological environment of tidal flats. Scientific management should be strengthened to avoid pollution of the sea area (eutrophication) by drainage of farmland and shrimp ponds and fish ponds.