CN1520708A - Naked rock fast afforestation method - Google Patents

Abstract

The fast greening method for bare rock wall includes the first installing cement boards onto the surface of rock wall to form V-grooves separated by certain distance as the greening frame, the subsequent filling the V-grooves with soil containing organic fertilizer and planting vetiver and other plants to form permanent firm stereo ecological system comprising arbor, shrub, weed and vine. The method has the advantages of fast coverage speed, lasting effect and reasonable cost.

Description

The fast greening method of bare rock wall

Affiliated technical field

The present invention relates to be implanted with the greening technique of pass with farming, the seed of forest.

Background technology

Because the development of every transportation and energy's capital construction, city capital construction and real estate, demand rapid growth to the sandstone material, the quarrying number that fetches earth in various places is the gesture of surge, the exploitation of stone field causes serious environmental and vegetation deterioration, because excessively exploitation, administer multiple green hysteresis, cause severe water and soil erosion, ecotope and urban look are suffered extremely to destroy.Cliff greening and revegetation to the stone field are global difficult problems, still do not have good solution at present.Because cliff is very precipitous, reaches 70～80 ° usually, even 90 °, and surface irregularity, do not have any soil or loose matrix, and suitable height is often arranged, common tens of rice, even rice up to a hundred, the result causes revegetation difficult unusually.At present common method sow grass seeds by duster, on cliff, build " bird's nest nest " or overhang plant in the plantation of cliff top, the bottom kind is climbed the wall plant.The instant effect of sowing grass seeds by duster, cost still can be accepted, but effect can not be lasting, after 2～3 years, in addition the time about 1 year, the matrix of sowing grass seeds by duster will be washed away by rainwater or the oneself comes off, and cliff returns to original state; It is too high to build " bird's nest nest " cost, makes us forbidding, and effect also is difficult to guarantee lastingly; As for planting the method that overhangs and climb the wall plant up and down at cliff, coverage speed is then quite slow, can't realize quick covering, to too high cliff, even not can realize whole coverings.

Summary of the invention

The objective of the invention is at the above-mentioned existing shortcoming of method to cliff greening restore vegetation, it is fast to propose a kind of coverage speed, and effect is lasting, and cost is reasonably to the fast greening new method of bare rock wall.

Method of the present invention comprises following two steps:

(1) on the wall of rock wall, install and fix earlier the concrete prefabricated frid of polylith, every concrete prefabricated frid and rock wall formation V-shaped groove, each V-shaped groove is separated by at a certain distance;

(2) in V-shaped groove, insert the soil that is added with fertilizer after, plant plant therein based on vetiver.

Said concrete prefabricated frid can adopt reinforced concrete prefabricated board, and two screw-thread steels are housed in this prefabricated board at least, and this screw-thread steel has one section to stretch out outside the prefabricated board, is fixed in the installation eye that gets out on the rock wall in order to plug-in mounting.

Said concrete prefabricated frid is fixed on the rock wall, and the angle of concrete prefabricated frid and rock wall is preferably in 10 °～50 ° scopes, to form said V-shaped groove.

Carry out afforestation project on the bare rock wall, use concrete prefabricated frid and form many row's V-shaped grooves at the rock wall, each row is installed along contour, adjacent row's vertical range is 1～5m, to form greening framework attractive in appearance rationally.

Important technology characteristics of the present invention be in V-shaped groove plantation based on the plant of vetiver, be preferably on the basis of plantation vetiver, collocation is with plant communitys such as Qiao, filling, grass or rattans, to revert to permanent firm Qiao, filling, grass, rattan stereo ecological system on cliff.

The plant of being planted in the said V-shaped groove is arranged in pairs or groups preferably and is vetiver collocation liane Boston ivy or shrub Caulis et folium clerodendri bungei or arbor banyan.

Preferably be added with water-loss reducer in the soil of being inserted in the said V-shaped groove, as the temper of granular sponge and paper pulp, so that the plant of being planted has enough moisture to supply with.

The inventive method is compared with cliff greening method in the past, has the following advantages and effect:

1, the greening coverage speed is fast.Generally after engineering completes half a year, can make the green percentage of cliff reach 60%～70%, reach more than 80% after 1 year, reach more than 90% after 2 years;

2, effect is lasting.By in prefabricated cement plate, putting into reinforcing bar, reinforcing bar inserts in the cliff and with concrete conglutination, its cement frid at least can be durable more than 10 years, after about 10 years, even the breakage of part cement plate is arranged, comes off, can not influence the integrated greening effect yet, because the root system of plant such as vetiver, banyan has sticked on the cliff well or has penetrated in the crack of stone already, Boston ivy etc. climb the wall plant also clings and covers full cliff already, and they can not be subjected to very big influence because of the damage of cement plate;

3, engineering cost can be accepted.The engineering cost of this method is at 50 yuan/m ²About, similar with the cost of the method for sowing grass seeds by duster, compare with " bird's nest nest " and to want considerably cheaper.This price all is an acceptable to government, concerning the user;

4, the management and maintenance time is not long.The greening of general stone field or other landscape engineerings, the curing time of plant normally 1～2 year, and by the plant of this method plantation at most only needs maintenance half a year, even 3～4 months just can be successful.

Embodiment

At first make the reinforced concrete prefabricated board of 40cm * 500cm * 5cm, lay 2 of Φ 12 screw-thread steels in the prefabricated frid, 2 in Φ 6.5 round steel, one of screw-thread steel is stretched out about 15cm; Then on the cliff to be recovered by certain line-spacing (vertical range is about 1.5m) along contour air drill perforating, direction and cliff face that eye stretches into cliff are about 45, and then prefabricated board installed, make and stretch out the outer screw-thread steel plug-in mounting of plate on the prefabricated frid and go in the eye that gets out on the rock wall, filling out concrete again is bonded in prefabricated frid on the cliff, form V-shaped groove, can also install prefabricated frid at those canyon topography places outside contour, the greening framework of cliff has just formed like this, and it is the fan-shaped V-shaped groove that several rows of horizontal and cliff face are 45 ° of angles.

Banket in V-shaped groove then, add fertilizer and water-loss reducer in the soil, water-loss reducer is granular sponge and paper pulp temper.Again vetiver is arranged in pairs or groups shrub Caulis et folium clerodendri bungei or liane Boston ivy or arbor banyan is planted in the V-shaped groove, and after plantation, pouring finished, the afforestation project of cliff was promptly finished substantially.With after the management about 3 months, mainly be to carry out the water source to irrigate, the afforestation project of cliff is promptly all finished.

Claims (8)

1. the fast greening method of a bare rock wall is characterized in that:

(1) on the wall of rock wall, install and fix earlier the concrete prefabricated frid of polylith, every concrete prefabricated frid and rock wall formation V-shaped groove, each V-shaped groove is separated by at a certain distance;

(2) in V-shaped groove, insert the soil that is added with fertilizer after, plant plant therein based on vetiver.

2. the fast greening method of bare rock wall according to claim 1, it is characterized in that said concrete prefabricated frid is a reinforced concrete prefabricated board, two screw-thread steels are housed in this prefabricated board at least, this screw-thread steel has one section to stretch out outside the prefabricated board, is fixed in the installation eye that gets out on the rock wall in order to plug-in mounting.

3. the fast greening method of bare rock wall according to claim 1, the angle that it is characterized in that said concrete prefabricated frid and rock wall is 10 °～50 °, forms said V-shaped groove.

4. the fast greening method of bare rock wall according to claim 1, what it is characterized in that has many rows by concrete prefabricated frid and the formed V-shaped groove of rock wall, and each row installs along contour, and adjacent row's vertical range is 1～5m.

5. the fast greening method of bare rock wall according to claim 1 is characterized in that the plant collocation of being planted has the plant community of Qiao, filling, grass or rattan in said V-shaped groove.

6. the fast greening method of bare rock wall according to claim 1 or 5 is characterized in that the plant of being planted is vetiver collocation liane Boston ivy or shrub Caulis et folium clerodendri bungei or arbor banyan in said V-shaped groove.

7. the fast greening method of bare rock wall according to claim 1 is added with water-loss reducer in the soil that it is characterized in that being inserted in said V-shaped groove.

8. the fast greening method of bare rock wall according to claim 7 is characterized in that at said water-loss reducer being the temper of granular sponge and paper pulp.