A kind of ecological engineering product and its preparation method and application

Abstract

The invention discloses an ecological engineering product and its preparation method and application. It is a degradable product for strong wave flow made of cement, stones, sand, plant fiber, humus, microbial strain coating body and plant nutrient substance coating body. Ecological engineering products for planting mangroves on the Li coast. The functional microorganism Bacillus amyloliquefaciens in engineering products promotes the rapid rooting of mangrove seedlings, inhibits plant pathogens, and decomposes plant fibers inside ecological engineering products; humus regulates the pH of raw materials; the coated plant nutrients continue to provide nutrients such as nitrogen, phosphorus and potassium Substances; plant fibers are conducive to the degradation of ecological engineering products after the mangrove plants are planted. Engineering products create a stable living environment for the germination and early growth of mangrove plant seedlings, and promote the rooting and colonization of mangrove plants. Experiments have shown that the use of this engineering product is conducive to the early colonization of mangrove plants on strong wave dynamic coasts, and the survival rate of plant seedlings is increased by 10‑15 times.

Description

technical field [0001] The invention belongs to the technical field of vegetation restoration ecology and engineering materials, and specifically relates to an ecological engineering product and its preparation method and application. Background technique [0002] Mangrove is a vegetation community that grows in the tropical and subtropical intertidal zone. It has good salt tolerance and plays a huge role in reducing waves and promoting siltation, purifying sewage, and resisting typhoons. At the same time, it provides coastal organisms with survival Habitat to maintain the ecological balance of the coastal zone. [0003] Since the 1970s and 1980s, due to the influence of various factors such as tidal flat reclamation and aquaculture activities caused by the population growth in coastal areas, the area of ​​mangroves in the world has decreased sharply. During 2009, 20% of the world's mangroves were lost. In the past ten years, people have realized the necessity of restoring...

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Problems solved by technology

[0005] The propagules of the current mangrove planting technology are seeds or young saplings. The way to cultivate mangrove plants is the same as that of conventional greening seedlings. The nursery germinates the seeds, and then transplants the mangrove seedlings to the beach. The root system causes damage, which seriously weakens the stress resistance of mangrove plants and reduces the growth rate of mangrove plants; moreover, compared with the nursery environment, the beach environment is very harsh, and the transplanted mangrove seedlings will lose a large number of seedling plants when they adapt to the beach environment

Manual seedling cultivation and transplanting are cumbersome, and the survival rate of seedlings is low during the transplanting process, which seriously hinders the work efficiency of large-scale restoration of mangroves

[0006] At this stage, especially when it comes to landscape engineering areas, in order to improve the survival rate of mangrove plants, methods such as embedding steel plates in front of the saplings and building dikes are used to protect the saplings from waves and tidal impacts. Such engineering measures are costly. Considering the red Due to tree plant growth restrictions and landscape needs, secondary construction will be carried out in the later stage, which will cause damage to the shoreline environment

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