CN101734797A

CN101734797A - Ecological restoration technique for fish ponds

Info

Publication number: CN101734797A
Application number: CN200810234872A
Authority: CN
Inventors: 王宝忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-20
Filing date: 2008-11-20
Publication date: 2010-06-16

Abstract

The invention discloses an ecological restoration technique for fish ponds, which is realized in a way as follows: growing plant species, which have the advantages of high stress resistance, extensive management, developed root system, strong soil binding capability and favorable environmental protection effect and can effectively eliminate greasy dirt, smoke dust and toxic chemicals, around the pond, wherein the developed plants constitute the landscape with trenchant arrangement, growing water plants in the fish pond, and controlling the water surface coverage at 5%; establishing an ecological balance relation of multiple species, which is centered by river crabs; removing surplus silt, carrying out dry-pond disinfection, and keeping a reasonable water depth; and restoring with microbes. The ecological restoration technique for fish ponds treats the polluted fish pond by intensifying the self purifying capacity of the nature and the material cycle law, provides a pollution control way for human being to live in harmony with nature, and provides a technical support for people in the aspect of enhancing water quality of the fish pond. The invention has the advantages of low investment, high efficiency, convenient operation and great development potential.

Description

The technology of a kind of fish pond restoration of the ecosystem

Technical field

The present invention relates to the technology of a kind of fish pond restoration of the ecosystem.

Background technology

At present, the rural area non-point pollution is owing to the popularity that has on the space, temporal uncertainty, hysteresis quality, ambiguity, latent, it is big that information is obtained difficulty, the harm scale is big, research, control and characteristics such as management difficulty is big, become problem demanding prompt solution in the new countryside construction, especially the pollution in fish pond, as using of fertilizer and pesticide, livestock and poultry cultivation discharge and countryside wastes etc., because a large amount of nitrogen, the phosphorus nutrition material enters the lake with face of land runoff, the river, bring the enabling environment condition for growth and the breeding of phycophyta, cause the fish pond dissolved oxygen concentration to reduce water quality deterioration, the dead fish incident of pond culture happens occasionally, and the trend that rises is year by year arranged.This is undoubtedly when directly causing the financial loss that can't retrieve and causing very big negative impact to agriculture production environment to the peasant, return government and business department and brought many operating pressure and caused various contradictions, become the factor leading to social instability that influences construction of harmonious society to a certain extent.

Summary of the invention

The objective of the invention is at the fish pond water pollution phenomenon of current existence and the technology of a kind of fish pond restoration of the ecosystem is provided.

The scheme that the present invention adopts for achieving the above object is:

(1) phytoremediation technology: the N in the water body, P etc. are the main nutrition sources of waterplant.The inner plantation by waterplant such as plantation waterweed, blue or green duckweeds in fish pond absorbs water body N, P etc., control water surface fraction of coverage about 5%; Other surrounding environment will note selecting suitable this area climatope in the selection of species, do not cause simultaneously exotic species invasion, good stress resistance, extensive management, root system of plant prosperity, solid native ability is strong, environment protecting good, can eliminate the floristics of greasy dirt, flue dust and toxic chemical substance effectively, the landscape layer that constitutes after the plant-growth is clearly demarcated.Selectable arbor species are: ginkgo, fragrant camphor tree, weeping willow, locust tree, China tree, fragrant flower Chinese scholar tree, Chinese chestnut; Shrub species is: crape myrtle, red autumnal leaves barberry, gold leaf glossy privet, melon seeds Chinese littleleaf box, Flos Rosae Chinensis etc.; Grass seeds is: Zoysia sinica, Bermuda grass, Herba Eragrostidis pilosae, Semen astragali sinici, calamus, Herba Ranunculi Japonici, Scirpus tabernaemontani, flat bar grass, shrimp grass, water lily etc.

(2) animal ecology recovery technique: setting up with the river crab is many species eubiosis relation at center, is main be fit to overlap put out to graze shrimp, silver carp, flathead, mandarin fish etc. with the crucian.In food chain, the silver carp of filter-feeding, flathead are the first step, and heterophagous freshwater shrimp is the second stage, and carnivorous mandarin fish is the third stage.Silver carp, flathead utilize haleoplankon, control water body fertilizer degree; The residual bait of freshwater shrimp cleaning river crab prevents the pollution of (comprising the bed mud top layer) of bottom water body; The little wild fish (comprising that it accrues) that mandarin fish then utilizes the pond water filling to introduce is bait, and a large amount of breedings of control freshwater shrimp prevent to strive food with river crab, alleviates the water body load, reduces and pollutes.

(3) environmental modification technuiques: remove unnecessary mud; Do the pond sterilization; The old debt of organism in the cleaning mud; Keep the reasonable depth of water, at the 2-2.5 times of water layer below the transparency, its dissolved oxygen amount is very low in the general water body.

(4) microorganism recovery technique: microorganism utilizes in the cultivating pool water body a large amount of materials such as water, carbon nutrition source, nitrogen nutrition source, inorganic salts and somatomedin thereof that exist to grow and breed, in self cell proliferation, reduce the content and the concentration of these materials in the water body, water body there is certain purifying treatment ability, reaches the purpose of water body dephosphorized, denitrogenation, desulfuration, degradation of organic substances.

The inventive method fish pond ecological reestablishment goes to administer contaminated fish pond by detergent power and the material cycle rule of strengthening nature self, be the pollution treatment approach that realizes harmonious co-existence between man and nature, for people at the technical support that provides low investment, high-level efficiency aspect the water quality of cleaning fish pond, is convenient to move, development potentiality is bigger.

Embodiment

With 100 mu of fish ponds is example:

(1) plants ginkgo, 8 meters of spacing in the rows around in the fish pond; In the ginkgo interval, plant Flos Rosae Chinensis, under Flos Rosae Chinensis, plant Zoysia sinica.The blue or green duckweed of the inner plantation in fish pond is controlled blue or green duckweed water surface fraction of coverage 5%.

(2) setting up with the river crab is many species eubiosis relation at center, is main be fit to overlap put out to graze shrimp, silver carp, flathead, mandarin fish etc. with the crucian.In food chain, the silver carp of filter-feeding, flathead are the first step, and heterophagous freshwater shrimp is the second stage, and carnivorous mandarin fish is the third stage.Silver carp, flathead utilize haleoplankon, control water body fertilizer degree; The residual bait of freshwater shrimp cleaning river crab prevents the pollution of (comprising the bed mud top layer) of bottom water body; The little wild fish (comprising that it accrues) that mandarin fish then utilizes the pond water filling to introduce is bait, and a large amount of breedings of control freshwater shrimp prevent to strive food with river crab, alleviates the water body load, reduces and pollutes.

(3) remove unnecessary mud once annual winter, do the pond sterilization simultaneously; The old debt of organism in the cleaning mud; Keep the reasonable depth of water, at the 2-2.5 times of water layer below the transparency, its dissolved oxygen amount is very low in the general water body.

Claims

1. the technology of a fish pond restoration of the ecosystem, it is characterized in that, plant good stress resistance, extensive management, root system of plant prosperity around in the pond, solid native ability is strong, environment protecting good, can eliminate the floristics of greasy dirt, flue dust and toxic chemical substance effectively, the landscape layer that constitutes after the plant-growth is clearly demarcated, the inner plantation in fish pond waterplant, control water surface fraction of coverage is 5%; Foundation is many species eubiosis relation at center with the river crab; Remove unnecessary mud, do the pond sterilization, keep the reasonable depth of water; Utilize microorganism to repair.

2. the technology of a kind of fish pond restoration of the ecosystem according to claim 1, it is characterized in that, the inner plantation in fish pond waterweed, blue or green duckweed, the arbor species of plantation can be wherein one or both of ginkgo, fragrant camphor tree, weeping willow, locust tree, China tree, fragrant flower Chinese scholar tree, Chinese chestnut around the fish pond; Shrub species be in crape myrtle, red autumnal leaves barberry, gold leaf glossy privet, melon seeds Chinese littleleaf box, the Flos Rosae Chinensis any or several; In grass seeds Zoysia sinica, Bermuda grass, Herba Eragrostidis pilosae, Semen astragali sinici, calamus, Herba Ranunculi Japonici, Scirpus tabernaemontani, flat bar grass, shrimp grass, the water lily one or more.

3. the technology of a kind of fish pond restoration of the ecosystem according to claim 1 is characterized in that, is main overlap put out to graze shrimp, silver carp, flathead, mandarin fish etc. with the crucian.