CN1562810A

CN1562810A - Method for renovating zoology in lakeshore zone

Info

Publication number: CN1562810A
Application number: CNA2004100129305A
Authority: CN
Inventors: 刘永定; 李伟; 沈银武; 刘幼平; 田广宇
Original assignee: Institute of Hydrobiology of CAS
Current assignee: Institute of Hydrobiology of CAS
Priority date: 2004-03-27
Filing date: 2004-03-27
Publication date: 2005-01-12
Anticipated expiration: 2024-03-27
Also published as: CN1331781C

Abstract

The character is to delimit scope in deep water area at selected lake shore band at first, then to select plants, the third is to set plants row pitch, the fourth is to set anti-wave layer and fix wood pile, the fifth is to set wave-proof layer which is made by pilling wood pile at internal side of anti-wave player and fitting iron plate on the wood pile and float wave-proof layer which is made by polyfoam, the sixth is to set planting position of emergent aquatic plant and submerged plant, the seventh is maintenance.

Description

The method of a kind of loke shore band restoration of the ecosystem

Technical field

The present invention relates to the restoration of the ecosystem of loke shore band aquatic vegetation, more specifically relate to the method for a kind of loke shore band restoration of the ecosystem.Be fit to loke shore band aquatic vegetation and destroy the restoration of the ecosystem in serious place.

Background technology

Removing algae is the difficult problem of recovery of lake and reservoir water body and protection with its growth of control, at present the technology that adopts in the world mainly contains three classes: 1. chemical process: kill algae as adding chemical agent, add molysite promote phosphorus precipitation, add lime denitrogenation etc., but easily cause secondary pollution; 2. physical method: dredge bed mud, machinery and remove algae, diversion and dash and become silted up etc., but cure the symptoms, not the disease; 3. ecology-biological method: be the very fast a kind of new technology of external development in recent years, water ecology-bioremediation technology is to go to recover natural original looks according to the nature self-law, strengthen the self-purification capacity of nature self and remove to administer contaminated water body, this is the logical pollution treatment thinking of harmonious co-existence between man and nature, also is the technological line of an innovation.This method is recovered by nature, is unsuitable for implementing at the serious loke shore band of the bigger ecological damage of stormy waves.

Summary of the invention

The object of the invention is to provide the scheme of a kind of loke shore band restoration of the ecosystem, and the restorative procedure treatment effect is good, construction costs is low, and the surviving rate height of its plant of planting can not cause secondary pollution, is applicable to the large-scale waste water control of river,lake and reservior.

In order to achieve the above object, the present invention is by the following technical solutions:

By technology governance Dian Chi blue-green alga bloom outburst with fish control blue-green algae, on the basis of the experience accumulation of reality, invented the technology of mechanical control blue-green algae, make the water transparency of 200 mu of test sites in 6.17 square kilometres major test district obtain certain improvement, regional for this reason coastal belt aquatic vegetation obtains repairing and lays the foundation.Can form the wetland of certain area in the coastal belt coastal belt plantation emergent, the species of coastal belt are recovered naturally, and the kind planting submerged plant both can absorb the pollution substance in the water, reduce fertile degree, clarification water quality, the raising water transparency of water body, make the water body of loke shore band can carry out benign circulation.200 mu of test site tests in earlier stage, plantation emergent and submerged plant suffer that stormy waves destroys and blue-green algae influences on the basis of failure, designed at plantation emergent arranged outside disappear wave layer and anti-ware layer, reduce the influence of stormy waves to emergent, improve the coastal belt simultaneously and disappear submerged vegetation beyond the wave layer, the coastal belt aquatic vegetation is repaired the resistibility of Hui Lang.By setting disappear wave layer, anti-ware layer and the side emergent of planting within it, at the outer animals and plants ecotope of submerged plant formation of planting of surveying of the wave layer that disappears, polluted water is handled, thereby reached the purpose of loke shore band restoration of the ecosystem.

The steps include:

A selects the zone of coastal belt depth of water 80-110cm, the place that the mud substrate is abundant, and delimit 15 mu of waters scopes;

B selectes plant, and the plant that plant is for enduring water and submerged plant, and emergent is cattail, hay grass, Scirpus tabernaemontani; Submerged plant is watermifoil, eel grass, p.malaianus, potarnogeton lucens, Potamogeton pectinatus L;

The C kind is planted very water and submerged plant: emergent hay grass line space is that 40-60cm, cattail line space are that 40-60cm, Scirpus tabernaemontani line space are 40-60cm; Submerged plant watermifoil line space 30-40cm, eel grass line space 30-40cm, p.malaianus line space 30-40cm, potarnogeton lucens line space 30-40cm, Potamogeton pectinatus L line space 30-40cm;

D is provided with the wave layer that disappears, and beats timber at the wave layer place that disappear, and the S-type arrangement of timber can reduce the destruction that stormy waves offsets the wave layer;

E is provided with anti-ware layer and unsteady anti-ware layer, beats timber in the inboard, wave district that disappears, and timber is linear array, and the spacing of timber is 1-1.5m, follows closely iron plate on timber, makes the anti-ware layer that floats with foam simultaneously, to weaken stormy waves;

F rationally is provided with very water and submerged plant planting location;

Scirpus tabernaemontani, hay grass, cattail according to the loke shore band are from the close-by examples to those far off planted successively in anti-ware layer and unsteady anti-ware layer inboard; The outer survey of the wave layer that disappears complied with from disappearing the wave layer from the close-by examples to those far off, plant watermifoil, eel grass, potarnogeton lucens, p.malaianus, Potamogeton pectinatus L successively, select these 5 kinds of submerged plants to consider that mainly its provenance is abundanter, durability against pollution is more intense, to stormy waves have must resistibility characteristics, the position of specifically planting does not have strict the qualification.

The present invention has following advantage and effect compared with the prior art:

1, select zone, depth of water 80-110cm place, easy to operate;

2, be provided with before the plantation anti-wave and anti-wave floristics match, guaranteed that very the surviving rate of water vegetation can reach 80-90%;

3, formulate relatively reasonable plantation specification, reduced human and material resources in a large number, improved working efficiency, for later large-area plantation provides scientific basis;

4, anti-ware layer, the float anti-ware layer and the wave layer that disappears are set, have avoided the destruction of stormy waves, also reduced the destruction of Hui Lang simultaneously, effectively raise the wave resistance ability emergent and submerged plant to emergent;

5, reasonably arrange to endure the position of water and submerged plant plantation, improve the surviving rate of its plantation, make water body can carry out benign circulation, improve water transparency at the loke shore band;

6, the present invention is pollution-free, has significant environment, economic and social benefit;

Description of drawings

Fig. 1 is the method synoptic diagram of a kind of loke shore band restoration of the ecosystem

Embodiment

Do below in conjunction with 1 couple of the present invention of accompanying drawing and to describe in further detail.

1 as can be known with reference to the accompanying drawings, and the method that this kind loke shore band is repaired is as follows:

1, selects the depth of water 80cm of 1 inboard, coastal belt of 200 mu of test sites or the position of 90cm or 100cm or 110cm, delimit 15 mu of waters scopes;

2, select 1-3 kind emergent: select relative wind and wave resistance cattail 7 and not wind and wave resistance Scirpus tabernaemontani 5, hay grass 6, wherein cattail 7 is planted in the periphery in emergent district than wind and wave resistance, can guarantee the surviving rate 80-90% of himself, also guarantee that the surviving rate of emergent district hay grass 6 and Scirpus tabernaemontani 5 reaches 80-90% simultaneously; Select 1-5 kind submerged plant: watermifoil 8, eel grass 9, p.malaianus 10, potarnogeton lucens 11, Potamogeton pectinatus L 12.Select these 5 kinds of submerged plants mainly to be because its provenance is abundant, resistant power, detergent power is more intense and it has the submerged plant of certain resistibility to stormy waves;

3, formulate plantation emergent and submerged plant line space:

Emergent: cattail 7 line space 50cm, hay grass 6 line space 45cm, Scirpus tabernaemontani 5 line space 55cm

Submerged plant: watermifoil 8 line space 35cm, p.malaianus 11 line space 30cm,

Eel grass 9 line space 40cm, potarnogeton lucens 10 line space 38cm,

Potamogeton pectinatus L 12 line space 34cm

4, the wave layer 4 that disappears is set,, beats timber, the S-type arrangement of timber according to delimiting 15 mu of scopes;

5, anti-ware layer 3 and unsteady anti-ware layer 2 are set, at the wave layer 4 inboard 3-5m place nail system timber that disappears, timber is line style to be arranged, and spacing is 1m, and face nailing iron plate is used for wave resistance on timber, and the unsteady anti-ware layer of making of foam 2 is set simultaneously;

6, in selected 15 mu of waters anti-ware layer .3 and unsteady anti-ware layer 2 inboards according to from the close-by examples to those far off planting 1-3 kind emergent successively from the loke shore band: Scirpus tabernaemontani 5, hay grass 6, cattail 7

Select relative wind and wave resistance cattail 7 and not wind and wave resistance Scirpus tabernaemontani 5, hay grass 6, wherein cattail 7 is planted in the periphery in emergent district than wind and wave resistance, can guarantee the surviving rate 80-90% of himself, also guarantee that the surviving rate of emergent district hay grass 6 and Scirpus tabernaemontani 5 reaches 80-90% simultaneously; Wave layer 4 outside plantation 1-5 kind submerged plant that disappears from the close-by examples to those far off to be followed successively by from the wave layer 4 that disappears: watermifoil 8, eel grass 9, potarnogeton lucens 10, p.malaianus 11, Potamogeton pectinatus L 12, these 5 kinds of submerged plants mainly are because its provenance is abundant, resistant power is strong, detergent power is strong and it has the submerged plant of certain resistibility to stormy waves;

7, take certain maintenance measure:

A, regular maintenance and repair anti-ware layer 3, floating anti-ware layer 2, the wave layer 4 that disappears are pinpointed the problems, and in time solve;

B, want the destruction of guard key insect to emergent cattail 7, hay grass 6, Scirpus tabernaemontani 5, in the multiple phase of insect pest, the insect-pest of regularly going and buy Chinese medicine to owing to connected the emergent that root lifts near the anti-ware layer that floats, note making its root to set back

C, avoid the destruction of external environment as far as possible, detour as ship etc. submerged plant watermifoil 8, eel grass 9, potarnogeton lucens 10, p.malaianus 11, comb tooth Herba potamogetonis distincti 12

D, seasonal withered and yellow to emergent hay grass 6 and cattail 7 will be manually with its plant residue place to go, the condition of creating for its later growth recovery

Claims

1, the method for a kind of loke shore band restoration of the ecosystem, it comprises the following steps:

The waters scope delimited in the zone of A, selection loke shore band depth of water 80-110cm;

B, selected plant, plant is for enduring water and submerged plant, and emergent is cattail, hay grass, Scirpus tabernaemontani, and submerged plant is watermifoil, eel grass, potarnogeton lucens, p.malaianus, comb tooth Herba potamogetonis distincti;

C, plantation be water and submerged plant very, and the line space of emergent cattail, hay grass, Scirpus tabernaemontani respectively is 40-60cm, and the line space of submerged plant watermifoil, eel grass, potarnogeton lucens, p.malaianus, comb tooth Herba potamogetonis distincti respectively is 30-40cm;

D, setting disappear unrestrained layer (4), beat timber, the S-type arrangement of timber;

E, anti-ware layer (3) and unsteady anti-ware layer (2) are set, at the inboard timber of beating of the wave layer that disappears, timber is the line style arrangement, and the timber spacing is 1-1.5m, follows closely iron plate on timber;

F, setting rationally be water and submerged plant planting location very, float anti-ware layer (2) and anti-ware layer (3) inboard according to from loke shore band (1) from the close-by examples to those far off, plant Scirpus tabernaemontani (5), hay grass (6), cattail (7) successively, float anti-ware layer (2) and anti-ware layer (3) are outer to be surveyed according to from the close-by examples to those far off planting watermifoil (8), eel grass (9), potarnogeton lucens (10), p.malaianus (11), comb tooth Herba potamogetonis distincti (12) from the wave layer (4) that disappears.