CN103548532A - Method for carrying out seine planting of ceratophyllum demersum - Google Patents

Abstract

The invention discloses a method for carrying out seine planting of ceratophyllum demersum, which comprises the steps of piling, seining, selecting ceratophyllum demersum, planting and the like. The ceratophyllum demersum planting method is simple, binding does not need to be carried out, the survival rate is increased and cost is reduced; the method is not influenced by variation of the depth of the water level and has obvious effects; water quality of a water body can be effectively improved, transparency of the water body is improved, conditions are provided for planting other plants, and the method can be used as an advanced step in the eco-remediation process; the method is suitable for remediation engineering of water bodies in lakes and ponds and recovery engineering of diversity of aquatic animals and plants.

Description

A kind of method of hornwort purse seine plantation

Technical field

The present invention relates to resource and environment field of engineering technology, relate in particular to a kind of method of hornwort purse seine plantation.

Background technology

Current, due to China's polluted-water, qualified discharge, forest cover do not destroy and the problem ubiquity such as water and soil loss aggravation, the nitrogen and phosphorus load of the receiving water bodies such as river, lake is increased, water transparency declines and body eutrophication outstanding problem, the atrophy of aquatic vegetation area and the bio-diversity brought fall sharply, cause a large amount of fish kills, industry, life, irrigation water are also had to adverse effect.

At present, the method for water body reparation mainly contains Physical, chemical method and ecological method, and with respect to physical-chemical process, ecological sending out is the most cheap, safety, simple effective method.Submerged vegetation is one of lake aquatic ecosystem important component part, is the important stable group of water ecological environment, has important ecological significance aspect stable maintaining aquatic ecosystem; It can not only be for Herbivore provides food source, for zooplankton and fish provide, protects place, can also play and purify water and prevent the effects such as sediments suspends again.

Hornwort ( ceratophyllum demersum) be the perennial heavy water herbaceous plant suspending in water, take and nourish and generate as main, the high build plant of strong component ability, plant corpus is from seed sprouting to maturation, and unrooted, grows thickly in freshwater, ,Wen Shui river, ditch small stream, hot spring flowing water and reservoir conventionally.As the advantage submerged vegetation species of Water Ecological Recovery, can effectively purify water and separated recycling, be mainly manifested in sewage purification, heavy metal absorption, the aspects such as absorption to eutrophication water nutrient source; And can effectively increase dissolved oxygen in water body, and effectively suppress the growth of eutrophication algae, improve water transparency.

Hornwort all can normal growth in the water of pH value 7.1～9.2, the suitableeest with pH value 7.6～8.8; Hornwort requires wider to water temperature, but comparatively responsive to freezing, and in ice, in several days, freezes to death; Hornwort is nitrophile, and in water, the high growth of content of inorganic nitrogen in better.

Growth and the illumination of hornwort are in close relations, and in order to meet the demand of its growth to illumination, existing implantation methods all need to be set up some facilities in water.

Chinese patent application 200520068256.2 discloses a kind of floating bed plant and biomembrane-ecological technique purifying polluted river water device, this device adopts natural timber to make floating bed, and the bionic type filler that planting plants, suspension are made with the synthetic of polyolefin, polyamide thereon; Chinese patent application CN101050028A provides a kind of equipment for purifying ultrophication water body that adopts wetland plant and biologic packing material to administer eutrophication waters such as pond, lakes, need to make enclosure frame with the resistant material of swimming, biologic packing material is fixed on enclosure frame, last fluitante is put into enclosure frame again; Chinese patent application CN101327986A discloses a kind of device of purifying eutrophication water body, the buoyant resistant material of first apparatus is made porous container, water plant planting, in biologic packing material, then is put into porous container by biologic packing material, reach clean-up effect.

The related device of above method is made loaded down with trivial details, complicated operation; Chinese patent CN102177807B discloses a kind of method of floatability submerged plant hornwort rapid field planting, relatively simplified plantation facility, can effectively improve water quality, improve water transparency, but also need to bundle hornwort with cloth, then connect cloth with fixing bag, finally hornwort is connected on dead lever by static line, dead lever two ends are connected with fixing bag, and are unfavorable for the growth of hornwort; So need to develop the implantation methods of new hornwort.

Summary of the invention

A kind of method that the object of this invention is to provide hornwort purse seine plantation, the method does not need to prepare special device, have simple, survival rate is high, environmental friendliness, feature that cost is low, can be in target water body quickness and high efficiency field planting suspension submerged plant hornwort, improve aquatic ecosystem structure, promote the ecosystem stable.

To achieve the above object of the invention, the technical solution used in the present invention is:

A method for hornwort purse seine plantation, comprises the following steps:

(1) piling, administers waters lineament as required, along bank, with waddy or bamboo pole, drives piles;

(2) purse seine, uses fishing net enclosure, the width of mesh of described fishing net to take hornwort along stake and can not float twine as standard;

(3) select algae, the plant that selection is grown fine, cleans silt, removes and has die or old and feeble hornwort;

(4) plantation, is evenly sprinkled into above-mentioned hornwort of having cleared up in enclosed waters by every mu of 1000～1500 jin of hornwort amounts, and hornwort is floated on the water surface, realizes the purse seine plantation of hornwort.

In technique scheme, the addition of hornwort is 1200 jin, every mu of waters hornwort.

In the present invention, pile spacing is determined according to water surface size and stormy waves, streamflow regime, generally with 2～4 meters, is advisable; After hornwort survives, can make water body turbidity decline very soon, transparency increases, and hornwort also can sink gradually.

Because technique scheme is used, the present invention compared with prior art has following advantages:

The present invention adopts floating method plantation hornwort first, utilizes purse seine delineation hornwort growth scope, has overcome and in prior art, has needed to adopt auxiliary facility could plant the shortcoming of hornwort, and disclosed hornwort implantation methods is simple, with low cost, and survival rate is high; Can effectively improve water quality, improve water transparency; Be applicable to the multifarious recovery engineering of lake pond waters recovery project and aquatic animals and plants.

Embodiment

Below in conjunction with embodiment, the invention will be further described:

Embodiment mono-: the test that at the bottom of Shishou mountain, Hubei, lake is administered

Long-pending more than 700 mu of this lake surface, severe water pollution is (bad

class water quality), water transparency less than is 20 centimeters.Approximately 5 mu of optional test areas, bamboo bar with 5 centimeters of diameters, every 3-4 rice piling purse seine and isolation cloth, be sprinkled into approximately 6000 jin of hornworts after salvaging and clear up from contiguous river, within one week, left and right survives and reaches more than 80%, first quarter moon test region water transparency is increased to more than 50 centimeters, and the main eutrophy composition such as N, P declines and reaches 20 left and right.

Embodiment bis-: zhuzhou,hunan dragon flying around Lake Water Body is administered

120 mu of the water body gross areas, water quality is

class water, 30 centimeters of transparencies.According to loke shore, naturally move towards every 3 meters of left and right, to play bamboo stake at part offshore water, 25 mu of left and right of actual purse seine area, every mu by 1500 jin of hornworts of sowing seeds, and within about one week, survive and reach more than 70%, after approximately 20 days, water transparency reaches nearly 80 centimeters, for the plantations of other pasture and water provides condition.

Embodiment tri-: Suzhou Garden of Master of the Net water body treating

More than 500 square metre of coverage of water, water colour dark yellow, severe water pollution is (bad

class water quality), transparency is lower than 20 centimeters, according to limit, nearly pond landform, with the rod of 3 centimeters of left and right of diameter, every about the 2 meters fixedly purse seines of driving piles, approximately 300 square metres of actual purse seine areas, be sprinkled into approximately 700 jin of left and right hornworts, about 20 days, survive and reach 90%, transparency reaches 1 meter, for building water ecosystem, provides condition.

Claims (2)

1. a method for hornwort purse seine plantation, is characterized in that, comprises the following steps:

(1) piling, administers waters lineament as required, along bank, with waddy or bamboo pole, drives piles;

(2) purse seine, uses fishing net enclosure, the width of mesh of described fishing net to take hornwort along stake and can not float twine as standard;

(3) select algae, the plant that selection is grown fine, cleans silt, removes and has die or old and feeble hornwort;

(4) plantation, is evenly sprinkled into above-mentioned hornwort of having cleared up in enclosed waters by every mu of 1000～1500 jin of hornwort amounts, and hornwort is floated on the water surface, realizes the purse seine plantation of hornwort.

2. method according to claim 1, is characterized in that: the addition of hornwort is 1200 jin, every mu of waters hornwort.