Ecological restoration method for bottom-cultured Cyclina sinensis at beach

A technology for ecological restoration and tidal flats, applied in chemical instruments and methods, biological water/sewage treatment, climate change adaptation, etc. It can solve the problem of no strict selection of food types, avoid sunburn and death, and improve economic benefits. , the effect of improving the ecological environment

Inactive Publication Date: 2014-08-13
HEBEI AGRICULTURAL UNIV.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After March, the food intake of green clams is gradually vigorous, and the growth is fast. The most suitable water temperature for growth is 24-30 degrees, and there is no strict selectivity for the type of food.

Method used

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  • Ecological restoration method for bottom-cultured Cyclina sinensis at beach

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Please refer to the attached figure 1 , the ecological restoration method of sowing green clams at the bottom of tidal flats of the present invention comprises the following steps: selecting damaged tidal flats for ecological restoration S100, selecting green clams as ecological restoration species S200, throwing green clam seedlings and cultivating them S300, and detecting whether the substrate environment is Eligible for S400, and completed S500 for ecological restoration of damaged tidal flats.

[0047] In step S100, the water temperature range is 2-28°C, the salinity is 18‰-38‰, the pH value of the water body is 7.7-8.3, the inorganic nitrogen content of the water body is 0.3-0.9 mg / L, and the active phosphate content of the water body is 0.03-38. 0.09mg / L, and the toxic and harmful substances in the bottom environment meet at least one of the following contents are damaged tidal flats for ecological restoration: total mercury content 0.2-0.8 mg / kg, cadmium content ...

Embodiment 2

[0053] The technical solution adopted by the present invention is an ecological restoration method for sowing green clams at the bottom of the tidal flats, and the method is suitable for carrying out ecological restoration of damaged tidal flats with green clams; the method includes determination of damaged tidal flats, seed stocking methods, seed breeding management and There are four steps in harvesting green clams. The four steps of the method are as follows:

[0054] ① Determination of damaged tidal flats: Damaged tidal flats are those with low biodiversity, poor economic benefits, and the total nitrogen and total phosphorus content in the water environment and substrate environment exceed the environmental requirements of GB / T18407.4 Agricultural product safety, quality and pollution-free aquatic product origin Tidal flats;

[0055] In the present invention, the damaged tidal flats that are suitable for green clams to carry out ecological restoration are as follows: the ...

Embodiment 3

[0060] On the basis of embodiment 2, in order to further improve the breeding effect of green clams, the present invention also has a preferred embodiment, the stocking density of seedlings is 125 grains / m 2 ; Green clam shell grows harvesting more than 3.5cm; Other parts are identical with embodiment 1.

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Abstract

The present invention discloses an ecological restoration method for bottom-cultured Cyclina sinensis at beach. The present invention includes: (1) selecting a damaged beach prepared for ecological restoration; (2) selecting Cyclina sinensisas a species for ecological restoration of the damaged beach; (3) putting a number of Cyclina sinensis fingerlings to the damaged beach and breeding; (4) checking out whether the toxic and hazardous substances in sediment environment meet conditions or not after the batch of Cyclina sinensis fingerlings is bred and harvested; and (5) if at least one toxic and hazardous substance in the sediment environment detected in step (4) does not meet the conditions, repeating steps (3) and (4). If the toxic and hazardous substances in the sediment environment detected in step (4) meet the conditions, the ecological restoration of the damaged beach is completed. The method adopts an ecological restoration method to repair the damaged beach, recovers the beach ecosystem, reduces the pollution degree of water body, as well as generates aquaculture economic benefits, thereby achieving the goals of ecological protection of the marine beach and the sustainable economic development.

Description

technical field [0001] The invention relates to an ecological system restoration method, in particular to a beach ecological restoration method. Background technique [0002] Marine environmental resources have important ecological, social and economic values. In recent years, long-term high-intensity human activities have exacerbated the degree of marine pollution. The uncontrolled discharge of agricultural wastewater such as breeding ponds and rice fields, industrial and mining sewage, and domestic sewage has severely damaged the marine ecological environment. The ecological functions of some sea areas have been severely damaged. Greatly weakened, the reduction of natural wetlands, the sharp deterioration of the ecological environment, and the reduction of biodiversity have caused it to lose its due social, economic, ecological, and environmental functions. It also affects the surrounding environment and even endangers public health. Marine water pollution has become an i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32A01K61/00
CPCY02W10/37Y02A40/81
Inventor 郭冉曾昭春夏辉申亮孙砚峰
Owner HEBEI AGRICULTURAL UNIV.
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