Background: Many reservoirs in China are responsible for the supply of edible water for residents. Some of these reservoirs are close to residential areas and often pollute the water due to the injection of domestic sewage, which affects the health of the residents who use the reservoir water as domestic water.
Modes: Stocking of carnivorous fish (plaque, squid, etc.) or filter-feeding fish (flea, tadpoles, etc.) in edible water reservoirs, and appropriate screening of filter-feeding shellfish (flea, alfalfa, etc.) and cultivation of floating plants (Water hyacinth, blue whiting, etc.). The wild fish and wild fish in the water of carnivorous fish are reduced.
Increased zooplankton and increased phytoplankton in the waters of zooplankton, while phytoplankton continuously absorb nitrogen, phosphorus and other pollutants in water bodies; filter-feeding fish and shellfish in filter-feeding water bodies indirectly purify water quality Floating plants absorb nitrogen, phosphorus and other pollutants in the water and directly purify the water. Adopting this mode of water conservation and water conservation can improve the transparency of the water body, improve the water quality, make it meet the standard of drinking water, and at the same time add aquatic products to the society.
Example: The 11.33 hectare area of ​​the Shenkeng Reservoir in Shenzhen is used to conserve water and water for the preservation of carnivorous fish. The water quality tends to be improved. This is reflected in a 20% drop in nitrogen and a decrease in the phosphorus content. %, dissolved oxygen increased, transparency increased. Thousands of islands in Zhejiang Province cover an area of ​​53,000 hectares. It is a giant edible water reservoir in China. The reservoir uses a method of stocking filter-feeding fish to raise water and water. Since 2001, they have put in some reservoir areas (14,500 hectares) within three years. A total of 2161 tons (36.09 million) of seedlings and oysters were used to feed on plankton and filter the growth of blue-green algae and green algae. At the same time, closures and bans were banned. In recent years, the plankton in Qiandao Lake has been greatly reduced, and the average transparency of the water exceeds. 5 meters, no eutrophication phenomenon has occurred, fish resources have also shown a trend of recovery, product taste has been greatly improved, produced here, squid, squid, through the State Environmental Protection Administration Organic Food Development Center (OFDC) audit certification, Become one of the first batch of organic aquatic products in China.
Modes: Stocking of carnivorous fish (plaque, squid, etc.) or filter-feeding fish (flea, tadpoles, etc.) in edible water reservoirs, and appropriate screening of filter-feeding shellfish (flea, alfalfa, etc.) and cultivation of floating plants (Water hyacinth, blue whiting, etc.). The wild fish and wild fish in the water of carnivorous fish are reduced.
Increased zooplankton and increased phytoplankton in the waters of zooplankton, while phytoplankton continuously absorb nitrogen, phosphorus and other pollutants in water bodies; filter-feeding fish and shellfish in filter-feeding water bodies indirectly purify water quality Floating plants absorb nitrogen, phosphorus and other pollutants in the water and directly purify the water. Adopting this mode of water conservation and water conservation can improve the transparency of the water body, improve the water quality, make it meet the standard of drinking water, and at the same time add aquatic products to the society.
Example: The 11.33 hectare area of ​​the Shenkeng Reservoir in Shenzhen is used to conserve water and water for the preservation of carnivorous fish. The water quality tends to be improved. This is reflected in a 20% drop in nitrogen and a decrease in the phosphorus content. %, dissolved oxygen increased, transparency increased. Thousands of islands in Zhejiang Province cover an area of ​​53,000 hectares. It is a giant edible water reservoir in China. The reservoir uses a method of stocking filter-feeding fish to raise water and water. Since 2001, they have put in some reservoir areas (14,500 hectares) within three years. A total of 2161 tons (36.09 million) of seedlings and oysters were used to feed on plankton and filter the growth of blue-green algae and green algae. At the same time, closures and bans were banned. In recent years, the plankton in Qiandao Lake has been greatly reduced, and the average transparency of the water exceeds. 5 meters, no eutrophication phenomenon has occurred, fish resources have also shown a trend of recovery, product taste has been greatly improved, produced here, squid, squid, through the State Environmental Protection Administration Organic Food Development Center (OFDC) audit certification, Become one of the first batch of organic aquatic products in China.
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