CN110447444A - The artificial method for promoting dalbergia odorifera natural regeneration - Google Patents
The artificial method for promoting dalbergia odorifera natural regeneration Download PDFInfo
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- CN110447444A CN110447444A CN201910769832.2A CN201910769832A CN110447444A CN 110447444 A CN110447444 A CN 110447444A CN 201910769832 A CN201910769832 A CN 201910769832A CN 110447444 A CN110447444 A CN 110447444A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
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- Biodiversity & Conservation Biology (AREA)
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Abstract
The invention discloses a kind of artificial methods for promoting dalbergia odorifera natural regeneration, comprising: screening elite stand, site preparation, after-culture and after-culture, protection treelet, weeding, which is characterized in that screening elite stand was selected is the young age dalbergia odorifera that the age of tree is 8 years or more；The present invention begins to understory plants in young growth, multi-level dalbergia odorifera woods can be preferably formed compared to the existing method being updated using mature forest, multi-level dalbergia odorifera woods can adequately utilize the nutritional ingredient in soil, activate soil nutrient, the production time is saved, ecological benefits had not only been ensure that but also had ensured the good development of the ecological environment of soil of stony desert Mountain area.
Description
Technical field
The present invention relates to Vegetation renewal fields.It is more particularly related to which a kind of artificial promotion dalbergia odorifera is natural
The method of update.
Background technique
Dalbergia odorifera is commonly called as Hainan Huanghua Pear, belongs to Papilionaceae yellow wingceltis platymiscium.Dalbergia odorifera is grown under field conditions (factors)
Slowly, it can become a useful person within 30~40 years, and as age of tree growth timber value is higher and higher.At present dalbergia odorifera China Hainan,
There is the plantation of larger area on the ground such as Guangdong, Guangxi and Fujian.
The natural renovation of dalbergia odorifera is slow, and the economic benefit is not high, and more survival rate of new seedlings is by many environmental impact factors.
Therefore, generally in the karst area of bad environments usually using the artificial method for promoting natural regeneration.Promoted naturally using artificial
It updates, the hierarchical structure of standing forest can be enhanced, change forest form, directive breeding good quality and high output woods, selective cutting utilizes, in management
Not only it saves labour, but also saves expense, meanwhile, the ecological environment of karst area can be kept to become better development.
Traditional dalbergia odorifera artificial forest can periodically remove understory species in the young growth stage, at this time to cultivate based on timber
The seedling of update can also be removed simultaneously, to guarantee the growth of goal tree, just consider to retain natural renovation after being formed to mature forest
Seedling, after the elite stand of mature forest is felled, the seedling of natural renovation is also too small, and survival rate is not high, it is also necessary to repeatedly fertilising,
Weeding fosters equal measures just to can guarantee the growth of children with seedling treelet, at high cost, human interference is strong, is unfavorable for forest in karst area
The maintenance of ecological environment.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide a kind of artificial promotion dalbergia odorifera natural regeneration
Method, begin to understory plants in young growth, can be more preferable compared to the existing method being updated using mature forest
The multi-level dalbergia odorifera woods of formation, multi-level dalbergia odorifera woods can carry out adequately benefit to the nutritional ingredient in soil
With, activate soil nutrient, save the production time, and will not go out fell after the division of history into periods the case where occur, not only ensure that ecological benefits but also
The good development of the ecological environment of soil of Rocky Desertification Region is ensured.
In order to realize these purposes and other advantages according to the present invention, artificial promotion dalbergia odorifera natural regeneration is provided
Method, comprising:
Elite stand, site preparation, after-culture and after-culture, protection treelet, weeding are screened, what screening elite stand was selected is that the age of tree is 8 years or more
Young age dalbergia odorifera.
Preferably, the specific steps are as follows:
Step 1: the forest land gradient of selection is at 20~25 degree, for soil pH value in 6-7, Canopy densities are 0.5~0.6
Dalbergia odorifera woods is as seed forest；
It loosens the soil Step 2: spot soil preparation is implemented in the soil part under dalbergia odorifera elite stand, site preparation area is 1m × 1m, deep
Plough 10cm-15cm, to dry vacant lot nearby spare after when site preparation removes weeds；Seeding method is that dalbergia odorifera seed is freely fallen
It plants or artificially collects dalbergia odorifera seed and sow to site preparation, with the weeds covering of sunning after seed planting；
Step 3: dalbergia odorifera germination, which is formed after new plant, carries out tending management to new plant, in the annual 4-5 month
Part and 9-10 month each artificial weeding are primary, and each fertilising is primary；
Step 4: carrying out inter-planting to nursery stock is updated, the density for updating nursery stock is maintained at 400-600 plants/hm2。
Preferably, in step 1 the density of dalbergia odorifera woods elite stand in 800-1000 plants/hm2。
Preferably, the time that site preparation is loosened the soil in step 2 be 1-2 before dalbergia odorifera seed maturation is dispersed months into
Row.
Preferably, the weeds in step 3 after weeding are retained, and are covered on the surface of new plant.
Preferably, specific fertilizing method is in step 3, digs annular fertilization ditch at distance more new talent trunk 20cm,
Every plant puts 100-150g nitrogen-phosphorus-potassium compound fertilizer.
The present invention is include at least the following beneficial effects:
The first, on the basis of existing forest land, promote the update method of dalbergia odorifera woods using the method manually promoted, adopt
Use the age of tree to be updated in 8 years or more young age seedlings as elite stand, guarantee trees can robust growth while, it can be ensured that
When carrying out final felling, dalbergia odorifera different levels woods is able to carry out good replacement, is not in young age after having felled mature forest
The dalbergia odorifera woods it is too small, when losing forest microclimate or environment sudden change, what the survival rate of dalbergia odorifera reduced
Problem；
The second, due to the multi-stratification of dalbergia odorifera woods, soil, the soil that the forest of each age section absorbs can effectively be activated
Nutritional ingredient it is different, the absorption efficiency of soil nutrient cultivates the dalbergia odorifera Lin Genggao based on timber compared to existing.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification
Text can be implemented accordingly.
The implementation area of the embodiment of the present invention is located at Guangxi Zhuang Autonomous Region Mashan County town Bai Shan and does village；
<embodiment 1>
The artificial method for promoting dalbergia odorifera natural regeneration:
Step 1: the forest land gradient of selection is at 20~25 degree, for soil pH value in 6-7, Canopy densities are 0.5~0.6
Dalbergia odorifera woods is as seed forest, wherein the soil is porous in the forest land, fertile, and draining is good, and the density of dalbergia odorifera elite stand exists
800-1000 plants/hm2；Then lower vertical, the weak branch of dalbergia odorifera and overstocked branch are trimmed, keeps good tree crown
Structure is maintained at Canopy densities between 0.5-0.6, forms good forest microclimate, so as to allow seed and update seedling
Obtain more sufficient sunlight and moisture；
Step 2: the soil under dalbergia odorifera elite stand is implemented spot soil preparation, site preparation area is 1m × 1m, and deep plough 10cm-
15cm is covered after seed planting with the weeds after removing；Seed planting mode is the free planting of dalbergia odorifera seed, seed
It is covered after planting with weeds；
Step 3: dalbergia odorifera germination, which is formed after new plant, carries out tending management to new plant, in the annual 4-5 month
Part and 9-10 month each artificial weeding are primary, and each fertilising is primary；
Step 4: carrying out inter-planting to nursery stock is updated, the density for updating nursery stock is maintained at 400-600 plants/hm2。
<embodiment 2>
The artificial method for promoting dalbergia odorifera natural regeneration:
Step 1: the forest land gradient of selection is at 20~25 degree, for soil pH value in 6-7, Canopy densities are 0.5~0.6
Dalbergia odorifera woods is as seed forest, wherein the soil is porous in the hillside fields, fertile, and draining is good, and the density of dalbergia odorifera elite stand exists
800-1000 plants/hm2；Then lower vertical, the weak branch of dalbergia odorifera and overstocked paper slip are trimmed, keeps good tree crown
Structure is maintained at Canopy densities between 0.5-0.6, forms good forest microclimate, so as to allow seed and update seedling
Obtain more sufficient sunlight and moisture；
Step 2: time for loosening the soil of site preparation is to carry out within 1-2 months before dalbergia odorifera seed is mature, concrete mode is,
Spot soil preparation is implemented into soil part under dalbergia odorifera elite stand, site preparation area is 1m × 1m, and deep plough 10cm-15cm, sowing side
Formula is to artificially collect dalbergia odorifera seed to sow to site preparation, is covered after seed planting with weeds；
Step 3: dalbergia odorifera germination, which is formed after new plant, carries out tending management to new plant, in the annual 4-5 month
Part and respectively remove primary grass in 9-10 month, each fertilising is primary, wherein the weeds after weeding are retained, and the table of new plant is covered on
Face；
Step 4: carrying out inter-planting to nursery stock is updated, the density for updating nursery stock is maintained at 400-600 plants/hm2。
<embodiment 3>
The artificial method for promoting dalbergia odorifera natural regeneration:
Step 1: the forest land gradient of selection is at 20~25 degree, for soil pH value in 6-7, Canopy densities are 0.5~0.6
Dalbergia odorifera woods is as seed forest, wherein the soil is porous in the hillside fields, fertile, and draining is good, and the density of dalbergia odorifera elite stand exists
800-1000 plants/hm2；Then lower vertical, the weak branch of dalbergia odorifera and overstocked paper slip are trimmed, keeps good tree crown
Structure is maintained at Canopy densities between 0.5-0.6, forms good forest microclimate, so as to allow seed and update seedling
Obtain more sufficient sunlight and moisture；
Step 2: spot soil preparation is implemented in the soil part under dalbergia odorifera elite stand, site preparation area is 1m × 1m, deep ploughing
10cm-15cm, seeding method is the free planting of dalbergia odorifera seed or artificially collects dalbergia odorifera seed and sow to site preparation, is planted
It is covered after sub- planting with weeds；
Step 3: dalbergia odorifera germination, which is formed after new plant, carries out tending management to new plant, in the annual 4-5 month
Part and respectively remove primary grass in 9-10 month, each fertilising is primary, wherein the weeds after weeding are retained, and the table of new plant is covered on
Face；Specific fertilizing method is at elite stand plant 30-40cm, digs annular fertilization ditch at more new talent 20cm, and every plant puts 100-150g
Nitrogen-phosphorus-potassium compound fertilizer, the nitrogen-phosphorus-potassium compound fertilizer are the commercially available compound fertilizer containing 15%N, 15%P, 15%K.
Step 4: carrying out inter-planting to nursery stock is updated, the density for updating nursery stock is maintained at 400-600 plants/hm2。
<comparative example 1>
Dalbergia odorifera woods is directly planted, is operated without understory plants.
Experimental example
One, manually promote soil bacteria and the content of microorganisms detection of dalbergia odorifera woods
Soil collection:
It is Example 1, embodiment 2, embodiment 3, right when reaching 5 years at the age of stand of multi-level woods using five point sampling methods
The soil of 0~40cm of ratio 1 is fitted into sterile sealed bag, is taken back 4 DEG C of laboratory and is saved backup.
Sample analysis and data processing
The measurement of the micro- raw biomass of soil uses dilution spread flap type, and soil bacteria, fungi and actinomyces are adopted respectively
With beef-protein medium, PDA culture medium, Gause I culture medium, bacterium dilution gradient setting 105、106、107cfu·
g-1, actinomyces dilution gradient setting 104、105、106cfu·g-1, fungi dilution gradient setting 103、104、105cfu·g-1, often
Every concentration gradient be arranged 3 repetitions, data using 8.05 Data Analysis Software of Excel2010, Orign carry out data processing and
Statistical analysis, concrete outcome are shown in Table 1；
Table 1
* it is significant difference (p < 0.05),#For significant difference (p < 0.08)；
Edaphon is organism living in soil, their composition sum number amount variation is often able to reflect out geobiont
Activity level can promote the formation and development of soil, change the physics and chemistry of soil by the metabolic activity of edaphon
Matter promotes the conversion of the matter and energies such as nitrogen, phosphorus, potassium, increases soil fertility；
Dalbergia odorifera manually promotes three categories micro organism quantity in natural regeneration woods to have differences as can be seen from the above table, tool
Body shows as bacterial population and is greater than fungi number, embodiment 1 (64.62 ± 4.51 × 10 greater than quantity of actinomyces4cfu·g-1, 42.56 ±
2.58×103cfu·g-1, 11.45 ± 2.55 × 103cfu·g-1), embodiment 2 (60.12 ± 4.35 × 104cfu·g-1,
43.24±2.34×103cfu·g-1, 9.58 ± 2.16 × 103cfu·g-1), embodiment 3 (61.54 ± 6.32 × 104cfu·
g-1, 45.36 ± 7.42 × 103cfu·g-1, 9.45 ± 2.44 × 103cfu·g-1) in each strain number compared to comparative example 1
(20.90±5.38×104cfu·g-1, 5.32 ± 8.78 × 103cfu·g-1, 3.33 ± 1.24 × 103cfu·g-1), therefore
Illustrate, the multi-level woods of dalbergia odorifera is conducive to the breeding and growth of edaphon, can speed up various organic in forest soil
The conversion of substance, and edaphon content is significantly more than comparative example 1 in the Examples 1 to 3 of the multi-level woods of dalbergia odorifera woods
The single age of tree of dalbergia odorifera mixed friendship, illustrate in multi-level woods the object of the dalbergia odorifera nutrient needed and generation of the different age of trees
Matter is different, can substance in diversified soil, be conducive to the activation of soil；
Two, survival rate of seedling
When having felled a batch Cheng Muhou, under conditions of not applying fertilizer, surviving for same several dalbergia odorifera seedling is detected
Rate；Specific data are shown in Table 2；
Table 2
Survival rate %=(survival seedling number/script sapling number) * 100%
It is smaller seeing as the age of tree difference between embodiment 1 and adult tree by upper table, and between comparative example 1 and adult tree
Age of stand difference it is larger, and the hayashishita of embodiment 1 has also had the seedling of new update at this time, therefore also can guarantee in embodiment 1
Sapling survival rate, and the sapling in comparative example 1 is since the age of tree is small, and soil fertility is not high, if applied fertilizer not in time very
It is easy death, therefore survival rate is low, therefore using the artificial species and soil for promoting dalbergia odorifera natural regeneration that can guarantee hayashishita
The diversity of earth microorganism keeps soil activation, increases soil fertility, can also guarantee permanent economic benefit.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and embodiment shown and described herein.
Claims (6)
1. manually promoting the method for dalbergia odorifera natural regeneration, including screens elite stand, site preparation, after-culture and after-culture, protection treelet, removes
Grass, which is characterized in that screening elite stand was selected is the young age dalbergia odorifera that the age of tree is 8 years or more.
2. the artificial method for promoting dalbergia odorifera natural regeneration as described in claim 1, which is characterized in that specific steps are such as
Under:
Step 1: the forest land gradient of selection is at 20~25 degree, soil pH value is in 6-7, the dalbergia wood that Canopy densities are 0.5~0.6
Yellow wingceltis woods is as seed forest；
It loosens the soil Step 2: spot soil preparation is implemented in the soil part under dalbergia odorifera elite stand, site preparation area is 1m × 1m, deep ploughing
10cm-15cm, to dry vacant lot nearby spare after when site preparation removes weeds；Seeding method is the free planting of dalbergia odorifera seed
Or artificially collect dalbergia odorifera seed and sow to site preparation, with the weeds covering of sunning after seed planting；
Step 3: dalbergia odorifera seed germination, which is formed after new plant, carries out tending management to new plant, in annual 4-5 month and
Each artificial weeding is primary during 9-10 month, applies fertilizer after 4-5 month weeding primary；
Step 4: carrying out inter-planting to nursery stock is updated, the density for updating nursery stock is maintained at 400-600 plants/hm2。
3. the artificial method for promoting dalbergia odorifera natural regeneration as claimed in claim 2, which is characterized in that dalbergia wood in step 1
The density of yellow wingceltis woods elite stand is in 800-1000 plants/hm2。
4. the artificial method for promoting dalbergia odorifera natural regeneration as claimed in claim 2, which is characterized in that site preparation in step 2
The time loosened the soil is that 1-2 months before dalbergia odorifera seed maturation is dispersed carry out.
5. the artificial method for promoting dalbergia odorifera natural regeneration as claimed in claim 2, which is characterized in that weeding in step 3
Weeds afterwards are retained, and the soil surface of new plant growth is covered on.
6. the artificial method for promoting dalbergia odorifera natural regeneration as claimed in claim 2, which is characterized in that specific in step 3
Fertilizing method be, distance more new talent trunk 20cm place digging annular fertilization ditch, every plant puts 100-150g nitrogen-phosphorus-potassium compound fertilizer.
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