A kind of artificial wetland conservation method of clear water type snail

A technology for artificial wetlands and snails, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems that the water environment is not suitable for clean water snail conservation, etc. Simple, big leaf effect

Active Publication Date: 2016-10-05
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is the technical problem that the culture method of benthic animals in the prior art and the water body environment are not suitable for clear water type snail (Margarya) conservation, and then provides a kind of using sea cauliflower, diatom, snail (Margarya) Margarya) is the main producer and consumer of clean water constructed wetlands to protect snails (Margarya), by controlling the quality of influent water, water change cycle, bottom quality, water depth range, silicon fertilizer dosage and methods. The stability of the wetland system provides an environment for foraging, growth and reproduction for a rare species of snail (Margarya) in plateau lakes

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  • A kind of artificial wetland conservation method of clear water type snail
  • A kind of artificial wetland conservation method of clear water type snail

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Embodiment 1

[0025] The clear water type artificial wetland of conservation snail described in the present embodiment, the water depth of described wetland is 0.8m, is laid with the thickness of clay matrix layer described clay matrix layer at the bottom of described wetland is 6cm; Clay matrix upper layer is laid 2cm thick layer of mixed particulate matter, the mixed particulate matter is red soil and CaCO 3 mixture of red soil and CaCO 3 The mass ratio is 3:1, and Fe in the red soil 2 o 3 The content is 8wt%. Sea cauliflower is planted on the substrate layer, and the density of the sea cauliflower is 6 plants / m 2 The influent water quality of the wetland is: total nitrogen 1.7-1.9mg / L, ammonia nitrogen 0.4-0.6mg / L, total phosphorus 0.13-0.18mg / L, COD20-30mg / L, SS 4-8mg / L. The water change cycle of the wetland is 7 days.

[0026] The method of utilizing the clear water type constructed wetland described in this embodiment to carry out conservation of snails includes:

[0027] The sn...

Embodiment 2

[0030] The clear water type artificial wetland of conservation snail described in the present embodiment, the water depth of described wetland is 1.1m, is laid with the thickness of clay matrix layer described clay matrix layer at the bottom of described wetland is 6cm; Clay matrix upper layer is laid 3cm thick layer of mixed particulate matter, the mixed particulate matter is red soil and CaCO 3 mixture of red soil and CaCO 3The mass ratio is 2:1, and Fe in the red soil 2 o 3 The content is 10wt%. Sea cauliflower is planted on the substrate layer, and the density of the sea cauliflower is 8 plants / m 2 The influent water quality of the wetland is: total nitrogen 1.4-1.6mg / L, ammonia nitrogen 0.3-0.7mg / L, total phosphorus 0.1-0.14mg / L, COD20-30mg / L, SS is 5-8mg / L, The water change cycle of the wetland is 10 days.

[0031] The method of utilizing the clear water type constructed wetland described in this embodiment to carry out conservation of snails includes:

[0032] The...

Embodiment 3

[0035] The clear water type artificial wetland of conservation snail described in the present embodiment, the water depth of described wetland is 1.5m, is laid with the thickness of described clay matrix layer described clay matrix layer at the bottom of described wetland is 10cm; Clay matrix upper layer is laid 5cm thick layer of mixed particulate matter, the mixed particulate matter is red soil and CaCO 3 mixture of red soil and CaCO 3 The mass ratio is 5:1, and Fe in the red soil 2 o 3 The content is 12wt%. Sea cauliflower is planted on the substrate layer, and the density of the sea cauliflower is 15 plants / m 2 The influent water quality of the wetland is: total nitrogen 1.2-1.5mg / L, ammonia nitrogen 0.5-0.8mg / L, total phosphorus 0.16-0.18mg / L, COD20-35mg / L, SS 8-12mg / L. The water change cycle of the wetland is 30 days.

[0036] The method of utilizing the clear water type constructed wetland described in this embodiment to carry out conservation of snails includes: ...

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Abstract

The invention relates to a clean-water type artificial wetland conservation method for margarya. The clean-water type artificial wetland conservation method has the advantages that the margarya is conserved by selecting highland clean-water plant and ottelia acuminata wetland as the basis so as to establish a clean-water type wetland system adopting ottelia acuminata, diatom and the margarya as main producers and consumers, and the stability of the wetland system is maintained by controlling the inflow-water quality, the water exchanging period, the substrate, the water-depth range, the silicon-fertilizer adding amount and mode and the like so as to provide necessary conditions for foraging, growth and reproduction of the margarya.

Description

technical field [0001] The invention belongs to the field of conservation of unique benthos species, and in particular relates to a method for conservation of snails (Margarya) by utilizing a clear water type artificial wetland. Background technique [0002] Snails (Margarya) belong to Mollusca, Gastropoda, and Viviparidae. They are endemic species of benthic animals in plateau freshwater lakes in Yunnan Province. They are mainly distributed in Erhai Lake, Dianchi Lake, Fuxian Lake, Alien Lakes such as Longhu, especially Dianchi Lake and Erhai Lake have the highest yields. Yunnan has been catching snails (Margarya) for hundreds of years. Its meat is delicious and it is an important economic snail species in the local area. Before 1994, snails (Margarya) were the dominant species in lake benthos. And ecological damage, the density and biomass of snails (Margarya) have declined to a large extent after 1999, and have gradually disappeared in many lakes. At this stage, snails ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCC02F3/327C02F2203/006C02F2301/00Y02A40/22Y02W10/10
Inventor 储昭升叶碧碧庞燕侯泽英
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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