CN106305325A

CN106305325A - Method for planting coniferous forest in saline-alkali land

Info

Publication number: CN106305325A
Application number: CN201610714508.7A
Authority: CN
Inventors: 李子东
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-24
Filing date: 2016-08-24
Publication date: 2017-01-11

Abstract

The invention belongs to the technical field of afforestation, and particularly relates to a method for planting a coniferous forest in a saline-alkali land of arid and semiarid areas. The method is characterized in that plant hormone is used for increasing the resistance of afforestation seedlings, and the proper seedlings are cultured in a directional way for different afforestation lands. The method comprises the following steps of 1, selecting the seedlings for afforestation, and building a seedling culture area at the land which has the same site condition with the afforestation land; 2, according to the directional culture of different sizes of seedlings, applying 2% high-performance water absorbing resin on the basis of conventional seedling culture, spraying plant type growth hormone for three times, irrigating by a 0.1% ferrous sulfate water solution for two times, and spraying a KH2PO3 (potassium dihydrogen phosphite) solution for five times; 3, spraying the plant type growth hormone 2 to 3 years after the seedling is completely adapted to the saline-alkali conditions; after 3 days, using the seedlings for afforestation in the saline-alkali land. The method has the advantages that the coniferous trees are planted in the area with higher saline-alkali degree and prohibiting of coniferous trees, an evergreen oasis is created for the area widely distributed with the saline-alkali land, and the technical blank of planting of the evergreen coniferous forest in the saline-alkali land of China is filled.

Description

A kind of salt-soda soil coniferous tree method of forestation

Technical field

The invention belongs to technical field of planting trees, be specifically related to a kind of arid, semiarid zone saline-alkali soil forestation method.

Technical background

In area, NORTHWEST CHINA portion, there is the salinization of soil wasteland of sheet, reproducting tree species are only limitted to poplar, willow, elm, and because of seeds Single, pest and disease damage is wreaked havoc, Stand Status extreme difference, ecological environment frailty.

The general biological characteristics of evergreen coniferous species is the acid seeds of happiness, and the most suitable numerical value of pH value is about 6.0,7-8 it Between undergrowth, more than 8 survive difficulty.

As: Pinus sylvestnis var. mongolica Litv.: happiness acidity or subacidity soil, between suitable pH value 5.0-7.0.

Pinus tabuliformis: happiness is acid, neutral soil, between suitable pH value 5.5-7.5.

Juniper: be born in neutral soil, calcium soil and subacidity soil, between suitable pH value 4.5-7.5.

Afforestation was gone all out with in various places in recent years, and the salt-soda soil in many areas has planted coniferous tree, owing to technology does not catches up with, natural The serious restriction of condition is also got half the result with twice the effort.

Coniferous forest are made in salt-soda soil becomes the forbidden zone of conventional afforestation.Look at a few strain pine and cypress trees of accidentally survival, stand proudly On bleak and desolate salt marsh, I am through careful observation, research, the experiments of up to a hundred times, exploration, sums up and a set of can successfully solve The method that certainly Coniferous forest are built in salt-soda soil.

The invention reside in change, domestication coniferous species so that it is adaptability strengthens, and salinity and alkalinity resistance improves, reach to adapt to mesh The afforestation requirement in mark salt-soda soil, is exactly briefly " changing the suitable ground of tree ".

Summary of the invention

The present invention realizes by the following method, it is characterized in that using phytohormone, in conjunction with identical with purpose reproducing area Edaphic condition, promote nursery stock strengthen resistance, progressively adaptation to end reproducing area, then be used further to afforestation.

Its method step is as follows:

Step 1, seedling treatment, choose the nursery stock needing afforestation, be poured onto water, and first three sky of lifting sprays a plant growing and swashs Element class medicament, suppresses seedling growth.

2, selecting nursery stock afforestation cultivation base, cultivation base requires there is identical edaphic condition with afforestation salt-soda soil.

3, the nursery stock handled well seedling raising process routinely dress nutrient cup (bag), dress cup soil is affixed by the high-performance water suction of 2% Resin (volume ratio).

Nursery stock manages

Water with the copperas solution of 0.1%～0.5% after field planting at once, water second time water two days later, subsequently into Routine Management.

Spraying the KH2PO3 solution that concentration is 5% after having planted, spray second time after first quarter moon, concentration is 4%；Again Spraying third time after after first quarter moon, concentration is 3%；

After the Second Year spring thaws, spraying the 4th KH2PO3 solution, concentration is 2%；Spraying the 5th time after first quarter moon, concentration is 1%. In coniferous tree growth in spring stops one week, spray an auxin class medicament.

During the 3rd year spring lifting afforestation, three days can be shifted to an earlier date and spray an auxin class medicament again.

Auxin class medicament of the present invention be chlorocholine chloride, abscisic acid, fulvic acid, epoxy-cyclohexane derive Thing, these phytohormone all have suppression plant growing, regulate Cytoplasm concentration, increase the effect that Premeabilisation of cells is sub-.

Auxin class medicament of the present invention, it is characterised in that the computational methods of concentration are X=N (Y- A) %+m.Usage amount is sprayed with plant leaf surface and is uniformly advisable.

X: represent the preferable consumption concentration of phytohormone.

Y: represent the pH value transplanting environment.

M: represent the minimum effective concentration of phytohormone.

N: represent the minimum lethal concentration of phytohormone or the highest effective concentration.

A: represent the optimum pH value of plant growing.

Advantages of the present invention and beneficial effect:

The present invention proposes a set of brand-new saline-alkali soil forestation technology, and to overcome saline-alkali soil forestation to survive difficulty, seeds are single, lacks Few evergreen coniferous tree, the shortcomings such as storage rate is low, increase the afforestation rate of saline and alkaline barren beach, reach evergreen all the year round and afforest and beautify effect Really.

Through test, at pH value at 9.5-

Heavy saline between 11, utilizes the mode of the present invention to plant trees, survival rate, and storage rate all can reach more than 85%, Existing additive method survival rate is less than 40%, and storage rate difficulty breaks through 20%.

Detailed description of the invention:

Embodiment 1. is as a example by Pinus sylvestnis var. mongolica Litv. of planting: transplant seeds, Pinus sylvestnis var. mongolica Litv. (about H:0.5m) the highest pH value 10.

Operating procedure is as follows:

1. cultivating seedlings

The 1.1 2 years raw pinus sylvestris seedlings of 2000 strain choosing needs, spray the chlorocholine chloride medicinal liquid that concentration is 500ppm, Lifting after three days；

1.2 choose the nursery identical with reproducing area land occupation condition, and the water-absorbing resin adding 2% fills nutrient bag routinely (volume ratio)；

1.3 water twice with 0.1% ferrous sulfate, install bag pouring, the second order three days pouring for the first time.

1.4 spray the KH2PO3 solution of 5% once, spray the KH2PO3 solution of 4% once, then spray after first quarter moon after first quarter moon The KH2PO3 solution of 3% is once；

After 1.5 Second Year spring break water water, spray the KH2PO3 solution of 2% once, after first quarter moon, spray 1% Once, growth in coniferous tree spring stops in one week after KH2PO3 solution, sprays the chlorocholine chloride medicinal liquid that concentration is 500ppm；

After within 1.6 the 3rd years, spring break water waters, spray the fulvic acid medicinal liquid of 300ppm once, for salt-soda soil after three days Afforestation.

2. afforestation

2.1 afforest 1350 strains at purpose reproducing area, and planting hole a size of 40*40*40cm nursery stock is with digging with cultivation, and nutrient bag must Must take off,

2.2 water with the ferrous sulfate aqueous solution of concentration 0.1%, water sufficient water,

2.3 until water all ooze lower after, put a lodged plant upright and banket, buried 5cm, naturally shakeout, it is not necessary to jam on.

Through investigation statistics, surviving 1309 strains then, Second Year survives 1290 strains, within the 3rd year, survives 1280 strains, and growing way is good Good.

Its preservation situation compares and see table

Compare same 1350 strains

Method for planting	First Year survives strain number	Second Year survives strain number	Within 3rd year, survive strain number
				Embodiment one	1309	1290	1280
Routine is planted	762	450	308

Embodiment 2

Operating procedure is substantially the same manner as Example 1, the highest pH value 10.5

Quantities

Pinus sylvestnis var. mongolica Litv. (H0.5m) 20000 strain

Pinus tabuliformis (H1.0m) 1200 strain

Pinus tabuliformis (H3.5m) 100 strain

Beijing Chinese juniper (H2.0m) 2400 strain

PiceameyeriRehd. Et Wils. (H1.5m) 80 strain

Spraying medicine, Beijing Chinese juniper 1000ppm fulvic acid, remaining uses the chlorocholine chloride of 500ppm.

Within nearly 4 years, seedling survival rate situation see table

Within nearly 4 years, seedling survives information slip

Survival rate, storage rate table

Same time Shuozhou greening plot condition survey table

Seeds and specification	1st year situation of planting	Within 2nd year, preserve situation	Within 3rd year, preserve situation	Within 4th year, preserve situation
					Pinus tabuliformis (H:3.5)	3000	1800	900	400
Pinus tabuliformis (H:1.5)	15000	8000	4000	3800
					Pinus sylvestnis var. mongolica Litv. (H:1.5)	30000	19000	11000	10100

Its survival rate, storage rate see table

Claims

1. a saline-alkali soil forestation method, is characterized in that the saline-alkali tolerance using phytohormone to regulate evergreen coniferous species, its side Method step is as follows

Step: (1), seedling treatment, chooses the target coniferous tree needing to plant, waters sufficient water, spray an auxin class Medicament, based on chlorocholine chloride,

(2), cultivating seedlings base is selected, it is desirable to the salt-soda soil identical with reproducing area,

(3), compost use 2% high-performance water-absorbing resin (volume ratio),

(4), the growth in spring of Second Year coniferous tree stop one week interior, spray an auxin class medicament, with chlorocholine chloride be It is main,

(5), first three day nursery stock of afforesting water sufficient water, spray a phytohormone class medicament, based on fulvic acid.

Saline-alkali soil forestation method the most according to claim 1, it is characterised in that auxin class medicament is chlorocholine chloride, Abscisic acid, class abscisic acid, fulvic acid, epoxy-cyclohexane derivant, brassinosteroid, successively decreasing of KH2PO3 solution 5%-1% concentration Spraying method.

Saline and alkaline plot the most according to claim 1 method of forestation, it is characterised in that auxin class medicament uses dense Degree computational methods are:

X=N(Y-a)%+m

X: represent the preferable consumption concentration of phytohormone,

Y: represent the pH value transplanting environment,

M: represent the minimum effective concentration of phytohormone,

N: represent the minimum lethal concentration of phytohormone or the highest effective concentration,

A: represent the optimum pH value of plant growing.