CN105701354B - A kind of appraisal procedure of rhizome type clone plant population recruitment potentiality after interference - Google Patents
A kind of appraisal procedure of rhizome type clone plant population recruitment potentiality after interference Download PDFInfo
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Abstract
The invention discloses a kind of appraisal procedure of rhizome type clone plant population recruitment potentiality after interference, its step：A, select sample；With selecting the field sample of three kind plant integrated distributions；B, field sampling；It is annual to carry out field sampling, respectively the rest period in kind of plant, after spring rudiment, grow animated period and Growing season latter stage；C sprouts count；The soil of sample band is rinsed well with running water, rhizome is placed on progress sprout identification under anatomical lens；D, Statistics of Density：The density of rhizome bud is the par of the rhizome bud in every square metre；E, experiment is sprouted；The sprouting experiment of carry out activity axillary bud, the rhizome section with movable axillary bud is cut with secateurs after field sampling terminates；F, quantitative evaluation；Population recruitment of the rhizome type clone plant after i-th of Growing season is interfered.The Renewal potential of clone plant is assessed using the density and sprouting ability of subterraneous root stem eye, easy to operate, accuracy is high, suitable for most rhizome type clone plants.
Description
Technical field
The invention belongs to Biodiversity Conservation field, is more specifically designed into a kind of rhizome type clone plant and is planted after interference
The appraisal procedure of group's Renewal potential, it assesses rhizome type suitable for the wetland plant utilization of resources, muskeg protection and management
Can clone plant be updated after being interfered by the sprouting of subterraneous root stem eye to ground population, be to judge that can interference
Convenient, the accurate effective ways for causing muskeg to be degenerated.
Background technology
Rhizome refers to the subterranean stem of variation, there is obvious section and internode, and there is terminal bud on the scaly leaf for having degeneration on section, top,
There is axillary bud on side, and downward Chang Sheng has adventitious root.In the dominant ecosystem of the herbaceos perennials such as meadow, Marsh Wetland, root
Stem type clone plant is the important component of vegetation.Although rhizome type clone plant blossoms and bears fruit, produce substantial amounts of seed, but
Contribution of the seedling to population recruitment is very small.The bud that rhizome type clone plant is relied primarily on rhizome carries out vegetative propagation to prolong
Continuous population.Burnt, after the severe jamming such as sand buries, cradles, causing ground plant part or loss, but rhizome type gram completely
Grand plant can rely on population in the regeneration addedly of subterraneous root stem eye.The density of different types of clone plant subterraneous root stem eye
Difference, be such as distributed in four kinds of dominant plants of conversation in Dongting Lake area (reed, sedge, Phalaris grass and polygonum flaccidum), Phalaris grass rhizome bud it is close
Degree is maximum, and the density of the rhizome bud of reed is minimum.Therefore, different plant species are updated by subterraneous root stem eye after being interfered and planted on the ground
The ability of group is different.In addition, there are obvious seasonal variations in the density of subterraneous root stem eye, typically in rest period subterraneous root stem eye
Density is maximum, and the density of rhizome bud declines after green sprouting, and hereafter density is gradually increasing again.Therefore, rhizome type clone plant exists
Various seasons can be used for the quantity of the addedly rhizome bud of upper population different, more sensitive to the season of interference generation.Again
Person, in plant different breeding time, due to being influenceed by the nutrition stored in rhizome, hormonal readiness etc., the sprouting ability of rhizome bud
There is also difference.With whole world change and the aggravation of mankind's activity, the increase of interfering frequency that muskeg is subject to, degree aggravation,
Main component of the rhizome type clone plant as vegetation, the quick renewal that ground population can be realized after being interfered be judge it is wet
Ground vegetation degeneration whether major criterion.Therefore, a kind of population recruitment for assessing rhizome type clone plant after interference is invented to dive
Convenient, the accurate method of power is extremely important to the wetland plant utilization of resources, muskeg protection and management etc..
Through Chinese patent net and correlative theses retrieved web, it is found that have some at present plants on clone plant after interference
The report of group's Renewal potential.Zhao Aifen etc. " the resistance to of sand ground frigida Population herds study mechanism preliminary study " [Deserts in China, 19
(Supp.1):65-68] mention after prairie sagewort is wiped out in plant above ground portion and can sprout to form new plant by adventitious bud.Li Genqian
Deng " growth of the sprout tillers of Mao Suwu sand ground Chinese sea buckthorn trunk cuttings and power of regeneration " [sea-buckthorn, 2007,20:(4) 10-12] carry
The quantity of population can be recovered rapidly after stump to Chinese sea buckthorn woods.Yang Limin etc. is in " korean epimedium herb (Epinedium
Koreanum Nakai) different niches stock biomass and Renewal potential " [Acta Ecologica Sinica, 2007,27 (6) 2251-2258] carry
Population recruitment is mainly maintained with vegetative propagations such as rhizomes to korean epimedium herb and increased.Chen Xinsheng etc. is in a kind of " simple bud of southern reed
Nan Di (Triarrhena are mentioned in rhizome section quick propagation method " (patent No. CN201410173454.9.)
Lutarioriparia rhizome axillary bud sprouting rate) is higher.Chen etc. is in " Assessment of regeneration
potential in the clonal macrophyte Miscanthus sacchariflorus(Poaceae)after
burial disturbance based on bud bank size and sprouting capacity”[PLoS ONE 10
(3):E012846] mention clone plant reed can population in the sprouting addedly by rhizome bud after sand buries interference.But
These researchs are only reported the updating ability of ground population single species after being interfered, and are not proposed a kind of
Assess the generality method of population recruitment potentiality.Deng in " Bud banks and their role in
vegetative regeneration-A literature review and proposal for simple
classification and assessment”[Perspectives in Plant Ecololgy,Evolution and
Systematics 8:115-129] quantity that is saved by counting on rhizome is proposed to assess Renewal potential of the species after interference,
But the bud on rhizome section is largely resting bud, and sprouting potentiality of the different types of bud after interference are different, therefore is assessed
As a result it is not accurate enough, it is difficult to apply in practice.Therefore, a kind of population for assessing rhizome type clone plant after interference is established more
Easy, accurate, applicability the method for new potentiality just seems particularly urgent.
The content of the invention
For current clone plant after being interfered the technological difficulties such as assessment inaccuracy of population recruitment potentiality, the present invention
Purpose be to be the provision of a kind of appraisal procedure of rhizome type clone plant population recruitment potentiality after interference, suitable for wetland
Repopulating capacity of the rhizome type clone plant after being interfered is assessed in plant resources utilization, muskeg protection and management
And judge whether interference can cause muskeg degeneration etc..Using the density and sprouting ability of subterraneous root stem eye to clone plant
Renewal potential assessed, easy to operate, accuracy is high, suitable for most rhizome type clone plants.
In order to realize above-mentioned purpose, the present invention uses following technical measures：
A kind of appraisal procedure of rhizome type clone plant population recruitment potentiality after interference, its step are：
A, select sample；Select the field sample of three this kind of plant integrated distributions, sample the distance between in 1000-
More than 1500 meters.Sample implants growing way is consistent, no disease and pests harm, without animal feeding.In each arrangement of sample plot three, four or five
Individual sample point.Sample point, which is tried one's best, avoids the edge of the species distribution and mixed green tape with other species, between sample point away from
From more than 50-80 rice.One fixed sample prescription is set in each sample point, sample area is 2m × 2m.Use at four angles of sample prescription
Timber is fixed, and sets obvious label, and records accurate coordinates point position with GPS, is searched convenient next time.The quantity of fixed sample prescription
For nine, 12 or 15.
B, field sampling；Carry out four field samplings every year, respectively the rest period in this kind of plant, after spring rudiment, it is raw
Long animated period and Growing season latter stage.During per sub-sampling, 25cm × 25cm sampling frames are placed in fixed sample prescription, count sampling frame
The stalk quantity of interior this kind of plant.If the plant of species is taller and bigger, such as southern reed, then using 50cm × 50cm sampling frames, with
Reduce sampling error.After the aerial part harvesting in sampling frame, 0-15cm in sampling frame is included into plant with instruments such as spades
The soil layer of under ground portion (root, rhizome) takes out, and is placed on sampling bag, takes back laboratory.The subquadrat quantity taken every time be nine, ten
Two or 15.
C, sprout counts；The soil of sample band is rinsed well with running water.Rhizome and sprout are kept during flushing as far as possible
Integrality, pay special attention to not washing away sprout with water.After rinsing well, the water of sample institute band is drained.If the bud of species
Body (such as southern reed) is larger, directly can with the naked eye recognize the active bud on rhizome, and counted with counter；If species
Active bud small volume, rhizome can be placed under anatomical lens and carry out sprout identification and count.
Described active bud refers to the bud that separate living tissue has been developed and formed obvious stem tissue.
D, Statistics of Density：The density of rhizome bud be every square metre in this kind of plant rhizome bud par, i.e. 25cm
The par of rhizome bud is multiplied by 16 in × 25cm subquadrats, is designated as B.Stalk density is the ground of this kind of plant in every square metre
The par of stalk, i.e., the par of stalk is multiplied by 16 in 25cm × 25cm subquadrats, is designated as S.
E, experiment is sprouted；The sprouting experiment of carry out activity axillary bud after each field sampling terminates.By the root with movable axillary bud
Stem section is cut with secateurs, and the front and rear of bud respectively stays 1-2cm.100 band bud rhizome sections are taken altogether, are divided into 5 groups, every group 20, in greenhouse
Inside carry out sprouting experiment.It will be laid in bud rhizome section on the culture matrix that thickness is 10cm, the thick cultures of 0.5cm covered on sprout
Matrix.Temperature control in greenhouse pours 1 water in 20-25 degree daily, and irrigation amount is to keep culture matrix moistening to be advisable without ponding.
Rudiment grows ground 1cm and is designated as sprouting, and is sprouted to continuous 7 days without sprout, sprouts experiment and terminates, counts every group of germination rate.
Germination rate is the bud number sprouted divided by total bud number, is designated as θ.
Described movable axillary bud refers to positioned at rhizome sidepiece, and separate living tissue has been developed and formed the bud of obvious stem tissue.
Described culture matrix refers to peat soil (common) and fine sand (common) by volume 1:1 is well mixed and is formed
Solid dielectric, there is provided plant machinery support and material supply.
F, quantitative evaluation；Population recruitment potentiality of the rhizome type clone plant after i-th of Growing season is interfered are designated as Yi。
Yi=Bi×θi/Si
In formula, BiFor the rhizome bud density of i-th of Growing season, unit is bud number/m2；θiFor the movable armpit of i-th of Growing season
The germination rate of bud；SiFor the ground stalk density of i-th of Growing season；Unit is strain number/m2.If Yi>1, represent the species
I Growing season can be sprouted after being interfered by subterraneous root stem eye to be updated to ground population；If Yi≤ 1, representing should
Species are difficult to sprout the renewal realized to ground population by subterraneous root stem eye after i-th of Growing season is interfered.
The present invention establishes a simplicity, accurately assesses the side of rhizome type clone plant population recruitment potentiality after interference
Method, compared with prior art its advantage be：
(1) scope of application is wider：Most of wetland perennial plants are rhizome type clone plants, cradled, fire
After the severe jammings such as burning, rely primarily on the germinating of rhizome bud and carry out population recruitment.Therefore, the present invention is more available for most wetlands are assessed
Population recruitment potentiality of the annual plant after interference.
(2) it is easy to operate：Only the density survey of rhizome bud need to be carried out in the main Growing season of clone plant, and done simple
Indoor sprouting experiment, one of ordinary skill in the art will appreciate that and repeat to realize.
(3) assessment result is reliable：The present invention has caught the core of clone plant population recruitment：" amount " of brood body
(quantity of rhizome bud) and " matter " (the sprouting ability of rhizome bud), and combine seasonal variations.Therefore, can accurately assess gram
Population recruitment potentiality of the grand plant after interference.
(4) method established using the present invention is to conversation in Dongting Lake area four kinds of advantages rhizome type clone plant (Nan Di, tongues
Grass, Phalaris grass and polygonum flaccidum) assessed.As a result show southern reed, Phalaris grass and polygonum flaccidum population recruitment potentiality be more than 1, show this three
Kind plant can be sprouted by subterraneous root stem eye be updated after interference to ground population；The population recruitment potentiality of sedge are less than
1, show sedge after heavily disturbed, it is difficult to be updated completely to ground population by the sprouting of subterraneous root stem eye.Comment
It is basically identical to estimate result with the experimental study in document and field investigation.
Embodiment
Applicant will combine the example of rhizome type clone plant reed (Miscanthus sacchariflorus) to this below
Inventive method is described in further detail, it is therefore intended that those skilled in the art is had more detailed understanding to the inventive method
And understanding, following examples should not be understood to that the present invention is claimed the limitation of scope in any degree.
Embodiment 1：
A kind of appraisal procedure of rhizome type clone plant population recruitment potentiality after interference, its step are：
(1) select sample；Three places for selecting conversation in Dongting Lake area reed large area to be distributed, Bei Zhouzi (29 ° 10 ' 31.4 " N,
112 ° 47 ' 55.9 " E), tea tray continent (28 ° 54 ' 11.8 " N, 112 ° 48 ' 34.6 " E) and He Tuanzhou (29 ° 20 ' 20.8 " N, 112 ° 51 '
05.4 " E) as sample.In each place, five sample points are selected in the Intermediate Gray of reed distribution.One is set in each sample point
Individual fixed sample prescription, sample area are 2m × 2m.Four angles of sample prescription are fixed with timber.A bamboo pole is established on side, and the above is red
Silk ribbon records accurate coordinates point position as label, and with GPS, is conveniently searched during lower sub-sampling.15 fixed samples are set altogether
Side.
(2) field sampling；(the coldest month, stop in November, 2010 (after flood terminates, and the growth latter stage of reed), January
The dormancy phase), March (after spring rudiment) and May carried out four sub-samplings (before flood arrives, the vigorous period of reed).Take every time
During sample, 50cm × 50cm sampling frames are placed in fixed sample prescription, count the stalk quantity of reed in sampling frame.By in sampling frame
After aerial part harvesting, in sampling frame 0 or 3 or 5 or 7 or 11 or 13 or 15cm is included into foot end with instruments such as spades
Soil layer take out, be placed on sampling bag, take back laboratory.The subquadrat quantity taken every time is 15.
(3) sprout counts；The soil of sample band is rinsed well with running water, and keeps the complete of rhizome and sprout as far as possible
Property.After rinsing well, the water of sample institute band is drained.The active bud volume of reed is larger, directly can with the naked eye recognize, with counting
Device is counted.
(4) Statistics of Density；Rhizome bud density be every square metre in reed rhizome bud par, i.e., each 50cm ×
The par of rhizome bud is multiplied by 4 in 50cm subquadrats, is designated as B.Stalk density is the flat of the ground stalk of reed in every square metre
Equal quantity, i.e., the par of stalk is multiplied by 4 in each 50cm × 50cm subquadrats, is designated as S.The subterraneous root of different Growing season reeds
Stem eye density and ground stalk density are shown in Table 1.
(5) experiment is sprouted；The sprouting experiment of carry out activity axillary bud after each field sampling terminates.By the movable armpit on rhizome
Bud is cut with secateurs, and the front and rear of bud respectively stays 1 or 2cm.100 band bud rhizome sections are taken altogether, are divided into 5 groups, every group 20, in greenhouse
Carry out sprouting experiment.It will be laid in bud rhizome section on culture matrix (with peat soil and fine sand by volume 1:1 uniformly mixing,
Thickness 10cm), 0.5cm thickness culture matrixes are covered on sprout.Temperature control in greenhouse is at 20 or 22 or 24 or 25 degree, watering daily,
Keep matrix moistening.Rudiment grows ground 1cm and is designated as sprouting, and is sprouted to continuous 7 days without sprout, sprouts experiment and terminates, counts
Every group of germination rate.Germination rate is the bud number sprouted divided by total bud number, is designated as θ.The sprouting of the rhizome bud of various seasons reed
Rate is shown in Table 1.
(6) quantitative evaluation；Population revegetation potentiality of the reed after (rest period) is interfered in January is designated as Y1,
Y1=B1×θ1/S1
B1It is 333 buds/m for the rhizome bud density of the 1st Growing season2；θ1For the sprouting of the movable axillary bud of the 1st Growing season
Rate, it is 0.8；S1It is 53 plants/m for the ground stalk density of the 1st Growing season2.Substitute into formula and draw Y1For 5.0, represent that reed exists
Rest period aerial part can be by population in the sprouting alternatively of subterraneous root stem eye after being interfered.By that analogy, reed is in difference
The Renewal potential of the season of growth is shown in Table 1.It can be seen that reed can be by subterraneous root stem eye after being interfered in four seasons of growth
Ground population is updated, but stronger with January (rest period) updating ability, May (growth animated period) updating ability compared with
It is weak.
Rhizome bud density, stalk density, germination rate and the Renewal potential of the conversation in Dongting Lake area various seasons reed of table 1.
Claims (1)
1. a kind of appraisal procedure of rhizome type clone plant population recruitment potentiality after interference, its step are：
(1) select sample；Select the field sample of three kind plant integrated distributions, sample the distance between in 1000-1500
Rice, in each three, four or five sample points of arrangement of sample plot, sample point avoids the edge and other species of species distribution
Mixed the distance between green tape, sample point sets a fixed sample prescription in 50-80 rice, in each sample point, sample area for 2m ×
2m, four angles of sample prescription are fixed with timber, set obvious label, and record accurate coordinates point position with GPS, fixed sample prescription
Quantity is nine, 12 or 15；
(2) field sampling；Every year carry out four field samplings, respectively the rest period in kind of plant, after spring rudiment, growth it is vigorous
Phase and Growing season latter stage, often during sub-sampling, 25cm × 25cm sampling frames are placed in fixed sample prescription, count this kind in sampling frame
The stalk quantity of plant, after the aerial part harvesting in sampling frame, 0-15cm in sampling frame is included into plant with spade instrument
The soil layer of under ground portion takes out, and is placed on sampling bag, takes back laboratory, and the subquadrat quantity taken every time is nine, 12 or ten
Five；
(3) sprout counts；The soil of sample band is rinsed well with running water, the integrality of rhizome and sprout is kept during flushing,
Sprout is not washed away with water, after rinsing well, the water of sample institute band drained, the sprout of species is larger, directly with the naked eye distinguishes
The active bud recognized on rhizome, and counted with counter；The active bud small volume of species, rhizome is placed under anatomical lens
Row sprout is recognized and counted；
Described active bud refers to the bud that separate living tissue has been developed and formed obvious stem tissue；
(4) Statistics of Density：The density of rhizome bud be every square metre in this kind of plant rhizome bud par, 25cm × 25cm
The par of rhizome bud is multiplied by 16 in subquadrat, is designated as B, and stalk density is the ground stalk of this kind of plant in every square metre
Par, the par of stalk is multiplied by 16 in 25cm × 25cm subquadrats, is designated as S；
(5) experiment is sprouted；The sprouting experiment of carry out activity axillary bud after each field sampling terminates, by the rhizome section with movable axillary bud
Cut with secateurs, the front and rear of bud respectively stays 1-2cm, takes 100 band bud rhizome sections altogether, is divided into 5 groups, every group 20, enters in greenhouse
Row sprouts experiment, will be laid in bud rhizome section on the culture matrix that thickness is 10cm, 0.5cm thickness culture mediums are covered on sprout
Matter, temperature control in greenhouse pour 1 water, rudiment grows ground 1cm and is designated as sprouting, and does not have bud to continuous 7 days in 20-25 degree daily
Body is sprouted, and sprouts experiment and terminates, and counts every group of germination rate, and germination rate is the bud number sprouted divided by total bud number, is designated as θ；
Described movable axillary bud refers to positioned at rhizome sidepiece, and separate living tissue has been developed and formed the bud of obvious stem tissue；
Described culture matrix refers to peat soil and fine sand by volume 1:1 solid dielectric for being well mixed and being formed；
(6) quantitative evaluation；Population recruitment potentiality of the rhizome type clone plant after i-th of Growing season is interfered are designated as Yi；
Yi=Bi×θi/Si
In formula, BiFor the rhizome bud density of i-th of Growing season, unit is bud number/m2；θiFor the movable axillary bud of i-th Growing season
Germination rate；SiFor the ground stalk density of i-th of Growing season, unit is strain number/m2；Yi>1, represent the species in i-th of growth
It can be sprouted after being interfered in season by subterraneous root stem eye and ground population is updated；Yi≤ 1, represent the species at i-th
Growing season is difficult to sprout the renewal realized to ground population by subterraneous root stem eye after being interfered.
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|---|---|---|---|---|
| CN102469770A (en) * | 2009-06-29 | 2012-05-23 | 拜尔生物科学公司 | Improvement of yield in crop plants through selection of epigenetically modified populations |
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