CN1294802C - Method of forestation without irrigation for stationary/half-stationary dessert - Google Patents

Abstract

The present invention relates to a method of the forestation without the irrigation for the stationary/ half-stationary desert, which comprises the following steps: firstly, selecting prefect sandy soil and planting time; then, reselecting plant species, planting density and planting depth; using a special slit planting spade to slot to be inserted with seedlings, squeezing root systems, compacting soil with feet to prevent the root systems from being exposed outside, bent and damaged, and applying market available macromolecular water-loss reducer and root growing powder to the seedlings by human assistant measures. The livability of plants achieves 75%, the scale of the forestation achieves 175 hectares, the planted plants can normally bloom and seed through the observation of the soil moisture and the grow of the plants for three years, and the performance of the built forest capable of wind prevention and sand control is stable. The slit planting spade has the advantages of reasonable technology, simplicity, simple operation and performs an important function in a large scale forestation engineering project.

Description

The method of fixing, half-stationary dessert forestation without irrigation

Technical field

The present invention relates to the technology method of forestation of arid biogeographic zone, the method for especially fixing, half-stationary dessert forestation without irrigation.

Background technology

The method of conventional afforestation is to irrigate after plantation in the desert, irrigates the problem that relates to the water source, the problem of equipment investment, problem of labour's problem and afforestation management or the like.About forestation without irrigation report is arranged also at present, but all do not mention survival rate.In the qualification of precipitation, soil moisture, floristic selection, aspects such as planting technology and stability lack sufficient technical support.The restrictive factor that influences desert vegetation mainly is a moisture, and plantation of plant and growth all be unable to do without moisture, particularly high temperature are being arranged, and the desert in arid summer is all the more so.Carry out the spring of plant planting, contain a certain amount of moisture in the soil, be referred to as outstanding wet water, this soil moisture has reached about 3%-6% in certain period.For specific plant, the soil moisture more than 1.5% can be by plant utilization, and the soil moisture content more than 3% can partly satisfy the demand of plant germination.Technical method of the present invention is implemented in the desert fixedly half-stationary dessert forestation without irrigation.

Summary of the invention

The object of the invention is, the method of the fixedly half-stationary dessert forestation without irrigation that provides, this method is at first selected sandy soil, implantation time, select floristics again, planting density, planting depth adopts special-purpose seam to plant spade to crack-insert the nursery stock jam-packed root system-reality that tramps with one's feet, and forbids root system to expose and loses, artificial ancillary method: nursery stock is carried out using of commercially available (trade name) macromolecule water-loss reducer 5% and commercially available (trade name) root-inducing powder, the survival rate of plant has reached 75%, and the afforestation scale has reached 175 hectares, through the soil moistures in 3 years and plant growing observation, the plant of plantation can normally blossom and bear fruit, and the forests for windbreak and sand-fixation performance of construction is stable.

Of the present invention fixing, half-stationary dessert irrigation-free afforestation technology method follows these steps to carry out:

A, at first select sandy soil, annual precipitation 〉=100 millimeter, snowfall in winter 15-20 cm thick; Implantation time, annual spring by the end of March-4 month at the beginning of; Soil moisture content requires 〉=3%, and the dry sand layer on top layer≤2 centimetre;

B, select floristics again: sacsaoul or haloxylon persicum, head Radix Calligoni Mongolici or arbor shape Radix Calligoni Mongolici, Herba Salsolae Ruthenicae; Planting density: Haloxylon and Radix Calligoni Mongolici are generally 150--250 strain/mu, can be sparse in 100-150 strain/mu after 3-5;

C, employing are made up of spade handle, shovel head, support, spade is inserted special use seam that shovel head (2) and horizontal on one side pedal support (3) be welded to (1) cover and is planted spade and crack-insert that nursery stock jam-packed root system-reality tramps with one's feet, forbid root system to expose and lose, planting depth 〉=40 centimetre, the high 0.40-0.50 rice of shovel head, wide 0.07-0.10 rice;

D, artificial ancillary method: nursery stock is carried out using of macromolecule water-loss reducer 5% and root-inducing powder.

The afforestation management: the management behind the forestation without irrigation mainly is the extermination of disease and insect pest in early stage, and rat plague control is manually sparse with necessity.Wherein damage by disease and insect and rat plague control carry out according to the forestry conventional method.

Special-purpose apparatus is that the apparatus-seam of sand ground afforestation is planted spade, it is made up of spade handle, shovel head and support, spade is inserted shovel head (2) to (1) cover and is welded with horizontal pedal support (3) on one side, and spade adopts the hollow steel pipe material to (1), and shovel head (2) adopts thick steel spring plate material to make.

Of the present invention fixing, the characteristics of half-stationary dessert irrigation-free afforestation technology method are: precipitation is 100 millimeter only, in the unserviceable sand ground environment of subterranean water level, study natural vegetation fully, the situation of soil moisture and Changing Pattern on the basis of upgrowth situation of plant and water consumption characteristics, utilize artificial ancillary method, carry out forestation without irrigation, the survival rate of afforestation is up to 75%.And the similar plantation of carrying out in same area, survival rate is up to 25%.China is except the famous Takla Makan Desert is mobile desert, and other mostly are fixedly half-stationary dessert.Therefore this desert irrigation-free afforestation technology will have a wide range of applications in the similar area with other of western China.

Description of drawings

Referring to accompanying drawing

Fig. 1 is the structural representation of apparatus of the present invention

Embodiment

Further describe and provide embodiment below in conjunction with accompanying drawing

The method of fixedly half-stationary dessert forestation without irrigation of the present invention, at first select sandy soil, annual precipitation 〉=100 millimeter, snowfall in winter 15-20 cm thick, on the sand ground of protection works, lay orderly straw checkerboard barrier, plantation sacsaoul or haloxylon persicum in straw checkerboard barrier, head Radix Calligoni Mongolici or arbor shape Radix Calligoni Mongolici, Herba Salsolae Ruthenicae.The Chinese character pin-shaped arrangement of plant, interlacing plantation, intermediate cutting behind the 3-5.Planting density: Haloxylon and Radix Calligoni Mongolici are generally 150--250 strain/mu, can be sparse in 100-150 strain/mu after 3-5; Implantation time, annual spring by the end of March-4 month at the beginning of; Soil moisture content requires 〉=3%, and the dry sand layer on top layer≤2 centimetre;

Specific purpose tool-seam that employing is made up of spade handle, shovel head and support is planted spade, it is by spade (1) cover to be inserted shovel head (2) to be welded with horizontal pedal support (3) on one side that this seam is planted spade, special-purpose seam is planted spade and cracks-insert that nursery stock jam-packed root system-reality tramps with one's feet, forbid root system to expose and lose, planting depth 〉=40 centimetre; The high 0.40-0.50 rice of shovel head wherein, wide 0.07-0.10 rice, seam is planted spade and is inserted in the sand ground, easily, laborsaving, soil surface there is not disturbance substantially, no soil moisture loss, dark, straight, stretching, extension that root system is imbedded, root system and soil contact consolidation, be particularly useful for the plantation of system of taproot nursery stock in the desert.As the dried sand on top layer, must be earlier remove and re-use seam and plant the spade plantation doing sand, avoid the loss of moist in desert, guarantee survival rate.

Artificial ancillary method: nursery stock is carried out using of commercially available macromolecule water-loss reducer (trade name) 5% and commercially available root-inducing powder (trade name).Under the condition of do not have irrigating, accumulative total is afforested 400 hectares, has formed long 20 kilometers, about each wide about 100 meters green protective belt, average survival has reached 75%.Avoided the formation that peeling off because of playing soil in the engineering construction process, spoir are pressed and buried, cal rolling causes sand damages such as fixing semifixed Shamian Island activation.

Claims (1)

1, a kind of method of fixing, half-stationary dessert forestation without irrigation is characterized in that following these steps to carrying out:

A, at first select sandy soil, annual precipitation 〉=100 millimeter, snowfall in winter 15-20 cm thick; Implantation time, annual spring by the end of March-4 month at the beginning of; Soil moisture content requires 〉=3%, and the dry sand layer on top layer≤2 centimetre;

B, select floristics again: sacsaoul or haloxylon persicum, head Radix Calligoni Mongolici or arbor shape Radix Calligoni Mongolici, Herba Salsolae Ruthenicae; Planting density: Haloxylon and Radix Calligoni Mongolici are generally 150--250 strain/mu, can be sparse in 100-150 strain/mu after 3-5;

Specific purpose tool-seam that c, employing are made up of spade handle, shovel head and support is planted spade, it is by spade (1) cover to be inserted shovel head (2) to be welded with horizontal pedal support (3) on one side that this seam is planted spade, special-purpose seam is planted spade and cracks-insert that nursery stock jam-packed root system-reality tramps with one's feet, forbid root system to expose and lose, planting depth 〉=40 centimetre, the high 0.40-0.50 rice of shovel head, wide 0.07-0.10 rice;

D, artificial ancillary method: nursery stock is carried out using of macromolecule water-loss reducer 5% and root-inducing powder.

Images