CN104761060A

CN104761060A - Algae type and eutrophic lake water ecological restoration method

Info

Publication number: CN104761060A
Application number: CN201510177110.XA
Authority: CN
Inventors: 罗郁强
Original assignee: Wuxi City Shun Di Restoration Of Ecosystem Science And Technology Ltd
Current assignee: Wuxi City Shun Di Restoration Of Ecosystem Science And Technology Ltd
Priority date: 2015-04-15
Filing date: 2015-04-15
Publication date: 2015-07-08
Anticipated expiration: 2035-04-15
Also published as: CN104761060B

Abstract

The invention provides an algae type and eutrophic lake water ecological restoration method for solving the problem that the existing water ecological restoration method is bad in restoration effect. The method is characterized by comprising the following steps: planting water chestnuts in lines in a to-be-restored lake water region, periodically detecting transparency of the lake water, when the transparency of the lake water is capable of meeting the requirement that a submerged plant can perform photosynthesis smoothly, planting the submerged plant between two adjacent lines of water chestnuts, controlling the planting coverage rate of the water chestnuts and the submerged plant, reducing the planting coverage rate of the water chestnut along the increase of the transparency of the lake water, and improving the planting coverage rate of the submerged plant through the transparency of the lake water.

Description

A kind of algae type, Hyper-eutrophic Ecological Recovery of Water method

Technical field

The present invention relates to environmental protection technical field, especially relate to Water Environment In Lakes resist technology field, be specially a kind of algae type, Hyper-eutrophic Ecological Recovery of Water method.

Background technology

Plant-type lake and algae type lake are the different stepss in Succession of Five Lakes process, plant-type lake is the lake that ecotope is not destroyed, in its water body, growth has a large amount of aquatic vascular plant, aquatic vascular plant considerable damage in lake can be caused when lake is subject to artificial destruction, water quality overfertilization makes planktonic algae amount reproduction in lake simultaneously, cause plant-type lake waters eutrophication and algae type gradually, algae type lake is destroyed due to aquatic vascular plant, planktonic algae amount reproduction causes water body muddy, also make lakebed lack protective layer simultaneously, stormy waves more easily rolls bed mud makes water body more muddy, thus form the vicious cycle of Ecology.In order to improve the water ecological environment of algae type, eutrophic lake, occur that the mode of planting planting submerged plant in lake is to recover lakebed vegetation at present, but because water body in lake muddiness causes sunlight to penetrate the bottom, thus make the submerged plant planted to carry out sufficient photosynthesis, thus repairing effect is undesirable.

Summary of the invention

For the problems referred to above, the invention provides a kind of algae type, Hyper-eutrophic Ecological Recovery of Water method, it can solve the undesirable problem of existing Ecological Recovery of Water method repairing effect.

A kind of algae type, Hyper-eutrophic Ecological Recovery of Water method, it is characterized in that: in lake waters to be repaired, in a row plant water chestnut, periodic detection lake water transparency, between the described water chestnut of adjacent two row, planting submerged plant is planted when lake water transparency can meet when submerged plant carries out photosynthesis requirement smoothly, and the plantation fraction of coverage of described water chestnut and submerged plant is controlled according to described lake water transparency, the plantation fraction of coverage of described water chestnut reduces along with the raising of described lake water transparency, and the plantation fraction of coverage of described submerged plant increases along with the raising of described lake water transparency.

It is further characterized in that:

When described lake water transparency is less than 50cm, the plantation fraction of coverage of described water chestnut controls to be 80%, and the plantation fraction of coverage of described submerged plant is 0;

When described lake water transparency reaches 70cm, the plantation fraction of coverage of described water chestnut controls to be 60%, and the plantation fraction of coverage of described submerged plant controls to be 5%;

When described lake water transparency reaches 80cm, the plantation fraction of coverage of described water chestnut controls to be 40%, and the plantation fraction of coverage of described submerged plant controls to be 8%;

When described lake water transparency reaches 100cm, the plantation fraction of coverage of described water chestnut controls to be 20% ~ 30%, and the plantation fraction of coverage of described submerged plant controls to be 15%;

When lake water transparency sees the bottom, the plantation fraction of coverage of described water chestnut is 0, and the plantation fraction of coverage of described submerged plant controls to be more than 30%;

Described submerged plant is preferably eel grass.

It is further characterised in that:

Described lake waters to be repaired is provided with rack fence, and described water chestnut, submerged plant planting are in the waters that described rack fence encloses.

The beneficial effect of the inventive method is: first it purify lake water quality by a row planting water chestnut, stem due to water chestnut can adsorb absorption water body recovery technology and nitrogen, phosphorus, thus effectively blue algae growth can be suppressed, and water chestnut root can absorb the nutritive substance of lakebed mud, there is fixing bed mud and reduce stormy waves and stir bed mud, reduce the effect of nutritive substance release and control " lake is general ", simultaneously, a large amount of microorganisms between water chestnut palpus have superpower cleaning action from lakebed to Water surface stereo, thus muddy water body can be made to become as clear as crystal, ensure that submerged plant successfully can carry out photosynthesis, for repairing whole lakebed submerged vegetation, recover whole aquatic ecosystem to build up a solid foundation, between adjacent two row water chestnuts, planting submerged plant is planted again when lake water quality purification can to meet to lake water transparency when submerged plant carries out photosynthesis requirement smoothly, and the plantation fraction of coverage of water chestnut and submerged plant is controlled according to lake water transparency, the plantation fraction of coverage of water chestnut reduces along with the raising of lake water transparency, simultaneously the plantation fraction of coverage of submerged plant improve along with the raising of lake water transparency, thus recover lakebed submerged vegetation, rebuild Lake benthic ecology system, and the setting of rack fence, can reach the effect of the stormy waves at the bottom of abatement Volume that effectively dissipates, the water chestnut avoiding planting, submerged plant are rolled by stormy waves, thus ensure water chestnut, submerged plant reliable plantation thus guarantee that water chestnut, submerged plant are to the Trusted recovery of water ecology.

Accompanying drawing explanation

Fig. 1 is that in the inventive method, water chestnut and submerged plant arrange schematic diagram in the plantation of lake waters to be repaired;

Fig. 2 is the vegetation schematic diagram in the water body after adopting the inventive method to repair lake ecological.

Embodiment

A kind of algae type, Hyper-eutrophic Ecological Recovery of Water method, rack fence 30 is set in lake waters to be repaired, in a row water chestnut is planted in the waters that rack fence 30 encloses, and periodic detection lake water transparency, because water chestnut root 15 is tied in lakebed bed mud, the leafing water surface, water chestnut stem 16 can rise with water and progressively grow, must be stretched upwards from the base stem of bed mud root system by root system and internode stem, through water body until floating leaf one-tenth water chestnut dish 11, water chestnut stem 16 length can reach 5 meters ~ 7 meters and water chestnut stem often saves and all covers with water chestnut stem fibrous root 13, thus each water chestnut stem 16 forms the fibrous root colony of stereo structure (see Fig. 2 in water, in Fig. 2,12 is water caltrop, 14 is water chestnut coring, 21 is submerged plant root system), it attached to a large amount of microorganisms, energy active adsorption nitrogen, phosphorus nutrition and other pollution substance, thus play and purify water, improve the effect of lake water transparency, between adjacent two row water chestnuts 10, plant planting submerged plant 20(when submerged plant carries out photosynthesis requirement smoothly see Fig. 1 when lake water transparency can meet), submerged plant can firmly take root and fixing bed mud thus spread firmly vegetation " greenery patches blanket " to lakebed, effectively prevent from and weaken high sea stirring bed mud and the muddy water that rises, reduce the phenomenon of lake water clear bottom, and submerged plant can reduce body eutrophication, effective absorption bed mud nutrition, slow down blue algae growth thus remove the disturbing of " lake is general " black smelly water, in addition submerged plant can also provide habitat and high-quality feed for hydrocoles in lake and zoobenthos, reach the effect recovering Lake benthic ecology environment, the plantation fraction of coverage of water chestnut and submerged plant is controlled according to lake water transparency, the plantation fraction of coverage of water chestnut reduces along with the raising of lake water transparency, the plantation fraction of coverage of submerged plant increases along with the raising of lake water transparency, wherein submerged plant is preferably eel grass, when lake water transparency is lower than 50cm, the plantation fraction of coverage controlling water chestnut is 80%, and the plantation fraction of coverage controlling eel grass is 0, when lake water transparency reaches 70cm, the plantation fraction of coverage controlling water chestnut is 60%, and the plantation fraction of coverage controlling eel grass is 5%, when lake water transparency reaches 80cm, the plantation fraction of coverage controlling water chestnut is 40%, and the plantation fraction of coverage controlling eel grass is 8%, when lake water transparency reaches 100cm, the plantation fraction of coverage controlling water chestnut is 20% ~ 30%, and the plantation fraction of coverage controlling eel grass is 15%, when lake water transparency sees the bottom, the plantation fraction of coverage of water chestnut is 0, the plantation fraction of coverage of eel grass controls to be more than 30%, until lakebed is paved with by submerged plant completely, thus realize that submerged plant is linked to be line with point, mode that line is linked to be sheet progressively increases plantation fraction of coverage, to reach the object recovering lakebed submerged vegetation.

Claims

1. an algae type, Hyper-eutrophic Ecological Recovery of Water method, it is characterized in that: in lake waters to be repaired, in a row plant water chestnut, periodic detection lake water transparency, between the described water chestnut of adjacent two row, planting submerged plant is planted when lake water transparency can meet when submerged plant carries out photosynthesis requirement smoothly, and the plantation fraction of coverage of described water chestnut and submerged plant is controlled according to described lake water transparency, the plantation fraction of coverage of described water chestnut reduces along with the raising of described lake water transparency, and the plantation fraction of coverage of described submerged plant improves along with the raising of described lake water transparency.

2. a kind of algae type according to claim 1, Hyper-eutrophic Ecological Recovery of Water method, is characterized in that: when lake water transparency is less than 50cm, and the plantation fraction of coverage of described water chestnut controls to be 80%, and the plantation fraction of coverage of described submerged plant is 0.

3. a kind of algae type according to claim 1, Hyper-eutrophic Ecological Recovery of Water method, is characterized in that: when lake water transparency reaches 70cm, and the plantation fraction of coverage of described water chestnut controls to be 60%, and the plantation fraction of coverage of described submerged plant controls to be 5%.

4. a kind of algae type according to claim 1, Hyper-eutrophic Ecological Recovery of Water method, is characterized in that: when lake water transparency reaches 80cm, and the plantation fraction of coverage of described water chestnut controls to be 40%, and the plantation fraction of coverage of described submerged plant controls to be 8%.

5. a kind of algae type according to claim 1, Hyper-eutrophic Ecological Recovery of Water method, it is characterized in that: when lake water transparency reaches 100cm, the plantation fraction of coverage of described water chestnut controls to be 20% ~ 30%, and the plantation fraction of coverage of described submerged plant controls to be 15%.

6. a kind of algae type according to claim 1, Hyper-eutrophic Ecological Recovery of Water method, is characterized in that: when lake water transparency sees the bottom, the plantation fraction of coverage of described water chestnut is 0, and the plantation fraction of coverage of described submerged plant controls to be more than 30%.

7., according to arbitrary in claim 1 ~ 6 described a kind of algae type, Hyper-eutrophic Ecological Recovery of Water method, it is characterized in that: described submerged plant is preferably eel grass.

8. a kind of algae type according to claim 7, Hyper-eutrophic Ecological Recovery of Water method, is characterized in that: described lake waters to be repaired is provided with rack fence, described water chestnut, submerged plant planting are in the waters that described rack fence encloses.