CN110021336A - Plant root system vertical distribution model construction method and device - Google Patents
Plant root system vertical distribution model construction method and device Download PDFInfo
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Abstract
The invention relates to a method and a device for constructing a plant root system vertical distribution model, and belongs to the technical field of plant root system detection. The method comprises the following steps: periodically reading image data of a preset number of micro root canals; determining growth parameters of a target plant to be detected in at least one soil layer depth based on the image data; generating vertical distribution of root system biomass of the target plant to be detected in at least one soil layer depth based on the growth parameters; and calculating model parameters according to the vertical distribution of the root biomass in at least one soil layer depth, and constructing a plant root vertical distribution model of the target plant to be detected. According to the method, the model parameters are calculated according to the vertical distribution of the biomass of the root system in the depth of the soil layer, and the plant root system vertical distribution model of the target plant to be measured is constructed, so that the distribution condition of the plant root system growing above the gas transmission pipeline in the vertical direction can be known, the plant root system growth can be predicted, the protection measures of the gas transmission pipeline are taken in advance, and the damage of the plant root system to the gas transmission pipeline is avoided.
Description
Technical field
The present invention relates to root system of plant detection technique fields, in particular to a kind of root system of plant vertical distribution model construction side
Method and device.
Background technique
Root system of plant has the function of the absorption of nutrient and moisture, transimission and storage, while also having and fixing and supporting
The important physiological function of plant plays key player in the biogeochemical cycle of the ecosystem.For being grown in
For plant above gas pipeline, during growth, root system of plant is likely to carry out the erosion resistant coating of gas pipeline
It destroys.China destroys problem from the root system of plant that phase early 1980s begins to focus on gas pipeline erosion resistant coating, and in 20 generation
Discipline the mid-80 successively finds that the gas pipeline that a lot of seventies build reed root system occurs and pierces gas pipeline asphalt
The phenomenon that erosion resistant coating.
In order to solve the problems, such as that the root system of plant of gas pipeline erosion resistant coating destroys, on the one hand need to research and develop and apply novel anticorrosion
Coating, this has been very significantly improved after 2000；On the other hand need to bury gas pipeline the root system of plant in bad border
It is predicted, influence of the root system of plant to pipeline is predicted, so as to the measure that properly protects in advance.Since plant root growth is in soil
In, belong to "black box" medium, can not with the naked eye be observed, and contingency, the unpredictability of plant root growth distribution
Big inconvenience is brought to research, leads to not correctly harm of the assessment root system of plant to pipeline and therefore needs a kind of plant roots
It is vertical distribution model building method, to construct root system of plant in the distributed model of vertical direction, understands above gas pipeline
The distribution situation of growing plants root system in vertical direction, predicts the growth of root system of plant.
Summary of the invention
To overcome the problems in correlation technique, the present invention provides a kind of root system of plant vertical distribution model building method
And device.
According to a first aspect of the embodiments of the present invention, a kind of root system of plant vertical distribution model building method is provided, it is described
Method includes:
The image data of periodic reading preset number mini-rhizotron, the mini-rhizotron are embedded in trench, the trench
Target position in object to be measured surrounding plants；
Based on described image data, determine the object to be measured plant in the growth parameter(s) of at least one soil depth；
Based on the growth parameter(s), the root biomass for generating the object to be measured plant is deep at least one described soil layer
Vertical distribution in degree；
According to vertical distribution of the root biomass at least one described soil depth, computation model parameter, structure
Build the root system of plant vertical distribution model of the object to be measured plant.
The technical solution that the embodiment of the present invention provides can include the following benefits:
By the image data of periodic reading preset number mini-rhizotron, it is based on image data, determines that object to be measured is planted
Object at least one soil depth growth parameter(s), and be based on growth parameter(s), generate object to be measured plant root biomass exist
Vertical distribution at least one soil depth allows to vertical at least one soil depth according to root biomass
Distribution, computation model parameter construct the root system of plant vertical distribution model of object to be measured plant, to understand above gas pipeline
The distribution situation of growing plants root system in vertical direction realizes the prediction to plant root growth, carries out appendix in advance
The safeguard procedures in road avoid destruction of the root system of plant to gas pipeline.
In another embodiment, before the image data of the periodic reading preset number mini-rhizotron, the side
Method further include:
Object to be measured plant is chosen, excavates trench in the target position of the object to be measured surrounding plants；
According to embedded rule, preset number mini-rhizotron is buried in the trench.
In another embodiment, the selection object to be measured plant, in the target position of the object to be measured surrounding plants
Setting excavation trench includes:
Choose the object to be measured plant close to gas pipeline；
In the object to be measured plant close to the gas pipeline side, determine apart from the object to be measured plant pre-determined distance
The target position；
The trench is excavated in the target position, the trench is 2 meters long, 1-1.5 meters wide, deep 1.5-2.0m.
In another embodiment, the embedded rule of the basis, buries preset number mini-rhizotron packet in the trench
It includes:
It is for each mini-rhizotron in the preset number mini-rhizotron, the mini-rhizotron and horizontal plane is oblique at 60 degree of angles
It inserts in the trench；
Ground is exposed to by 20 centimetres above the mini-rhizotron；
Soil is filled out back in the trench according to original soil layer.
In another embodiment, described to be based on described image data, determine the object to be measured plant at least one
The growth parameter(s) of soil depth includes:
Based on image analysis software, data extraction is carried out to described image data, obtains the object to be measured plant in institute
State root system root long, surface area, projected area, volume, roots oxidizing and the root system number at least one soil depth；
By root system root long of the object to be measured plant at least one described soil depth, surface area, projected area,
The growth parameter(s) of volume, roots oxidizing and root system number as the object to be measured plant.
In another embodiment, described to be based on the growth parameter(s), generate the root system biology of the object to be measured plant
Measuring vertical distribution at least one described soil depth includes:
Based on the growth parameter(s), determine that root system of the object to be measured plant at least one described soil depth is straight
Diameter, root system root long and tissue density；
For each soil depth at least one described soil depth, the root system according to the object to be measured plant is straight
The weight of root system of the object to be measured plant of the soil depth is calculated in diameter, root system root long and tissue density；
Using the weight of root system as the object to be measured plant the soil depth root biomass；
Based on the root biomass of at least one soil depth, the root biomass of the object to be measured plant is generated
Vertical distribution at least one described soil depth.
In another embodiment, described vertical at least one described soil depth according to the root biomass
Distribution, computation model parameter, the root system of plant vertical distribution model for constructing the object to be measured plant include:
According to vertical distribution of the root biomass at least one described soil depth, the object to be measured is calculated
Weakening coefficient and biomass accumulation percentage of the plant at least one described soil depth；
Using the weakening coefficient and the biomass accumulation percentage as the model parameter；
Determine the biomass accumulation percentage, the functional relation weakened between coefficient and the soil depth,
Using the functional relation as the root system of plant vertical distribution model of the object to be measured plant.
According to a second aspect of the embodiments of the present invention, a kind of root system of plant vertical distribution model construction device is provided, it is described
Device includes:
Read module, for the image data of periodic reading preset number mini-rhizotron, the mini-rhizotron is embedded in moat
In ditch, the trench is in the target position of object to be measured surrounding plants；
Determining module determines the object to be measured plant at least one soil depth for being based on described image data
Growth parameter(s)；
Generation module obtains the root biomass of the object to be measured plant described for being based on the growth parameter(s)
Vertical distribution at least one soil depth；
Module is constructed, for the vertical distribution according to the root biomass at least one described soil depth, meter
Model parameter is calculated, the root system of plant vertical distribution model of the object to be measured plant is constructed.
In another embodiment, described device further include:
Module is chosen, for choosing object to be measured plant, excavates moat in the target position of the object to be measured surrounding plants
Ditch；
Embedded module, for burying preset number mini-rhizotron in the trench according to embedded rule.
In another embodiment, the selection module, for choosing the object to be measured plant close to gas pipeline；Institute
Object to be measured plant is stated close to the gas pipeline side, determines the target position apart from the object to be measured plant pre-determined distance
It sets；The trench is excavated in the target position, the trench is 2 meters long, 1-1.5 meters wide, deep 1.5-2.0m.
In another embodiment, the embedded module, for micro- for each of the preset number mini-rhizotron
Root canal, by the mini-rhizotron and horizontal plane at 60 degree of angle oblique cuttings in the trench；20 centimetres above the mini-rhizotron are exposed to
Ground；Soil is filled out back in the trench according to original soil layer.
In another embodiment, the determining module carries out described image data for being based on image analysis software
Data are extracted, and root system root long of the object to be measured plant at least one described soil depth, surface area, perspective plane are obtained
Product, volume, roots oxidizing and root system number；By root system root of the object to be measured plant at least one described soil depth
The growth parameter(s) of length, surface area, projected area, volume, roots oxidizing and root system number as the object to be measured plant.
In another embodiment, the generation module determines that the object to be measured is planted for being based on the growth parameter(s)
Roots oxidizing, root system root long and tissue density of the object at least one described soil depth；For at least one described soil
Each soil depth in layer depth, according to the roots oxidizing of the object to be measured plant, root system root long and tissue density, meter
It calculates and obtains the weight of root system of the object to be measured plant of the soil depth；Using the weight of root system as the object to be measured
Root biomass of the plant in the soil depth；Based on the root biomass of at least one soil depth, described in generation
Vertical distribution of the root biomass of object to be measured plant at least one described soil depth.
In another embodiment, the building module is used for according to the root biomass at least one described soil
Vertical distribution in layer depth calculates weakening coefficient and life of the object to be measured plant at least one described soil depth
Object amount accumulates percentage；Using the weakening coefficient and the biomass accumulation percentage as the model parameter；Described in determination
Biomass accumulation percentage, the functional relation weakened between coefficient and the soil depth, the functional relation is made
For the root system of plant vertical distribution model of the object to be measured plant.
The technical solution that the embodiment of the present invention provides can include the following benefits:
By the image data of periodic reading preset number mini-rhizotron, it is based on image data, determines that object to be measured is planted
Object at least one soil depth growth parameter(s), and be based on growth parameter(s), generate object to be measured plant root biomass exist
Vertical distribution at least one soil depth allows to vertical at least one soil depth according to root biomass
Distribution, computation model parameter construct the root system of plant vertical distribution model of object to be measured plant, to understand above gas pipeline
The vertical distribution situation of growing plants root system in vertical direction is realized the prediction to plant root growth, is carried out in advance defeated
The safeguard procedures of feed channel avoid destruction of the root system of plant to gas pipeline.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is a kind of process of root system of plant vertical distribution model building method shown according to an exemplary embodiment
Figure；
Fig. 2A is a kind of process of root system of plant vertical distribution model building method shown according to an exemplary embodiment
Figure；
Fig. 2 B is a kind of signal of root system of plant vertical distribution model building method shown according to an exemplary embodiment
Figure；
Fig. 2 C is a kind of signal of root system of plant vertical distribution model building method shown according to an exemplary embodiment
Figure；
Fig. 2 D is a kind of signal of root system of plant vertical distribution model building method shown according to an exemplary embodiment
Figure；
Fig. 2 E is a kind of signal of root system of plant vertical distribution model building method shown according to an exemplary embodiment
Figure；
Fig. 2 F is a kind of signal of root system of plant vertical distribution model building method shown according to an exemplary embodiment
Figure；
Fig. 3 A is a kind of block diagram of root system of plant vertical distribution model construction device shown according to an exemplary embodiment；
Fig. 3 B is a kind of block diagram of root system of plant vertical distribution model construction device shown according to an exemplary embodiment；
Fig. 4 is a kind of frame of root system of plant vertical distribution model construction device 400 shown according to an exemplary embodiment
Figure.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Fig. 1 is a kind of process of root system of plant vertical distribution model building method shown according to an exemplary embodiment
Figure, as shown in Figure 1, this approach includes the following steps.
In a step 101, the image data of periodic reading preset number mini-rhizotron, mini-rhizotron are embedded in trench,
Trench is in the target position of object to be measured surrounding plants.
In a step 102, it is based on image data, determines that object to be measured plant is joined in the growth of at least one soil depth
Number.
In step 103, it is based on growth parameter(s), generates the root biomass of object to be measured plant at least one soil layer depth
Vertical distribution in degree.
At step 104, the vertical distribution according to root biomass at least one soil depth, computation model ginseng
Number constructs the root system of plant vertical distribution model of object to be measured plant.
Method provided in an embodiment of the present invention is based on by the image data of periodic reading preset number mini-rhizotron
Image data determines that object to be measured plant in the growth parameter(s) of at least one soil depth, and based on growth parameter(s), generates to be measured
Vertical distribution of the root biomass of target plant at least one soil depth, allows to according to root biomass extremely
Vertical distribution in a few soil depth, computation model parameter construct the root system of plant vertical distribution mould of object to be measured plant
Type is realized raw to root system of plant to understand the distribution situation of growing plants root system in vertical direction above gas pipeline
The safeguard procedures of gas pipeline are carried out in long prediction in advance, avoid destruction of the root system of plant to gas pipeline.
In another embodiment, before the image data of periodic reading preset number mini-rhizotron, method further include:
Object to be measured plant is chosen, excavates trench in the target position of object to be measured surrounding plants；
According to embedded rule, preset number mini-rhizotron is buried in trench.
In another embodiment, object to be measured plant is chosen, excavates moat in the target position of object to be measured surrounding plants
Ditch includes:
Choose the object to be measured plant close to gas pipeline；
In object to be measured plant close to gas pipeline side, the target position apart from object to be measured plant pre-determined distance is determined；
Trench is excavated in target position, trench is 2 meters long, 1-1.5 meters wide, deep 1.5-2.0m.
In another embodiment, according to embedded rule, burying preset number mini-rhizotron in trench includes:
For each mini-rhizotron in preset number mini-rhizotron, by mini-rhizotron and horizontal plane at 60 degree of angle oblique cuttings in trench
It is interior；
Ground is exposed to by 20 centimetres above mini-rhizotron；
Soil is filled out back in trench according to original soil layer.
In another embodiment, it is based on image data, determines object to be measured plant in the life of at least one soil depth
Long parameter includes:
Based on image analysis software, data extraction is carried out to image data, obtains object to be measured plant at least one soil
Root system root long, surface area, projected area, volume, roots oxidizing and root system number in layer depth；
By root system root long, surface area, projected area, volume, root of the object to be measured plant at least one soil depth
It is the growth parameter(s) of diameter and root system number as object to be measured plant.
In another embodiment, it is based on growth parameter(s), generates the root biomass of object to be measured plant at least one
Vertical distribution in soil depth includes:
Based on growth parameter(s), roots oxidizing of the object to be measured plant at least one soil depth, root system root long are determined
And tissue density；
For each soil depth at least one soil depth, according to the roots oxidizing of object to be measured plant, root system
The weight of root system of the object to be measured plant of soil depth is calculated in root long and tissue density；
Using weight of root system as object to be measured plant soil depth root biomass；
Root biomass based at least one soil depth generates the root biomass of object to be measured plant at least one
Vertical distribution in a soil depth.
In another embodiment, the vertical distribution according to root biomass at least one soil depth calculates mould
Shape parameter, the root system of plant vertical distribution model for constructing object to be measured plant include:
According to vertical distribution of the root biomass at least one soil depth, object to be measured plant is calculated at least one
Weakening coefficient and biomass accumulation percentage in a soil depth；
Coefficient and biomass accumulation percentage will be weakened as model parameter；
It determines biomass accumulation percentage, weaken the functional relation between coefficient and soil depth, functional relation is made
For the root system of plant vertical distribution model of object to be measured plant.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
Fig. 2A is a kind of process of root system of plant vertical distribution model building method shown according to an exemplary embodiment
Figure, as shown in Figure 2 A, this approach includes the following steps.
In step 201, object to be measured plant is chosen, excavates trench in the target position of object to be measured surrounding plants.
In embodiments of the present invention, during the growth process due to the plant above gas pipeline, it is more likely that appendix
Road damages, and therefore, it is necessary to choose the plant close to gas pipeline as object to be measured plant, so as in object to be measured plant
Trench is excavated between gas pipeline, and the growth parameter(s) of object to be measured plant during the growth process is obtained based on trench, so that
The subsequent root system of plant that can construct object to be measured plant vertical direction distributed model, to the plant roots of target plant to be measured
The growth of system in vertical direction is predicted.
When choosing object to be measured plant, according to the vegetation type of different regions, different types of plant can be chosen and made
For object to be measured plant.For example, wherein growing plants is mostly cinnamomum camphora, Huang Geshu, China fir, horse hair for Sichuan-chongqing Region
Pine and 5 kinds of plants of bamboo, and rule of thumb, above-mentioned 5 kinds of plants are affected to gas pipeline, therefore, can be by above-mentioned 5 kinds
One of plant is a variety of as object to be measured plant.It should be noted that class of this case to the object to be measured plant of selection
Type and number are without specifically limiting.
After determining object to be measured plant, due to it needs to be determined that influence of the object to be measured plant to gas pipeline, need
Target position is determined in object to be measured plant close to gas pipeline side, to excavate trench in target position, mini-rhizotron is inserted
Enter trench, obtains the growth parameter(s) of object to be measured plant during the growth process.Wherein, target position is to lean in object to be measured plant
Nearly gas pipeline side, the position apart from object to be measured plant pre-determined distance.Pre-determined distance can be by being artificially configured, for example, can
For in object to be measured plant close to gas pipeline side, apart from 1 meter of position of object to be measured plant.
After determining target position, trench can be excavated in target position, it is right so as to subsequent mini-rhizotron embedded in trench
The root growth of object to be measured plant is detected.Wherein, when excavating trench, can according to the bad border of current position,
The composition of soil and the attribute of object to be measured plant determine the size of trench.For example, for Sichuan-chongqing Region, according to warp
It tests, when excavating trench, general trench is 2 meters long, 1-1.5 meters wide, deep 1.5-2.0m.It should be noted that in the process of excavation
In, pay attention to the root system of plant for protecting object to be measured plant, avoids root system of plant from being dug disconnected.It is planted in order to subsequent in building object to be measured
It, can be more close to the growth conditions of the root system of plant of object to be measured plant, complete when the root system of plant vertical distribution model of object
After the excavation of trench, using the sectional view of high-resolution digital camera shooting trench, allow to identify in figure to be measured
The Characteristics of Vertical Distribution and upgrowth situation of the root system of plant of target plant, so as in the root system of plant of building object to be measured plant
It, can be using the sectional view of root system of plant as reference when vertical distribution model.
In step 202, according to embedded rule, preset number mini-rhizotron is buried in trench.
In embodiments of the present invention, mini-rhizotron is the medium for acquiring image data in object to be measured growing process, can
It is 7.2 centimetres of outer diameter, 6.4 centimetres of internal diameter, 200 centimetres of length of transparent circular pipe.The material of mini-rhizotron can be acetic acid fourth vinegar-fibre
Dimension element, the present invention is to the scale and material of mini-rhizotron without specifically limiting.
The embedded rule and preset number of mini-rhizotron can be by being artificially configured, in general, and preset number can be 4,
Embedded rule can be micro- to bury 4 at 0.5 meter, 1.0 meters, 1.5 meters and 2.0 meters of object to be measured plant in trench respectively
Root canal, in embedded mini-rhizotron, by mini-rhizotron and horizontal plane at 60 degree of angle oblique cuttings in trench, mini-rhizotron top 20cm is exposed to ground
Face, and fill out back soil in the trench according to original soil layer, by soil compression, mini-rhizotron is buried in completion.
It should be noted that complete to mini-rhizotron it is embedded after, natural causes pair such as sunlight, rainwater in order to prevent
Mini-rhizotron is acted on, and is impacted to the growth of the root system of plant of target plant to be measured, therefore, it is necessary to prevent mini-rhizotron
Light water-proofing treatment.Wherein, when carrying out water-proofing treatment against sunshine to mini-rhizotron, mini-rhizotron first can be exposed to the part on ground with black
The winding of coloring agent band, avoids sunlight from being irradiated to root system of plant through mini-rhizotron；Then, then with light adhesive tape to the nozzle of mini-rhizotron into
Row covering, and covers on the nozzle after covering so that mini-rhizotron be the state sealed, avoid rainwater it is isotonic enter mini-rhizotron.
After completing embedded preset number mini-rhizotron, need to cross on the tube wall that mini-rhizotron bassets part
Label, to guarantee in the subsequent image data for obtaining root system of plant based on mini-rhizotron, acquisition equipment can be in mini-rhizotron
Same position decentralization, so that each acquired image data of every mini-rhizotron are the data of root system of plant same position, really
The accuracy of experiment is protected.It should be noted that in order to collect root system of plant in the image data of different soil depth, every
Marking on mini-rhizotron can be in the position of the different height on mini-rhizotron.
In addition, in order to increase the service life of mini-rhizotron, avoiding mini-rhizotron after carrying out water-proofing treatment against sunshine to mini-rhizotron
By the destruction of people and animals, it can prevent mini-rhizotron from causing tube wall fried due to heat absorption the part painted white that mini-rhizotron bassets
It splits；At the same time it can also the part litter coverage that mini-rhizotron bassets, avoids mini-rhizotron from being exposed to outside and be destroyed.
In step 203, the image data of periodic reading preset number mini-rhizotron.
In embodiments of the present invention, it every predetermined period, needs just to each mini-rhizotron in preset number mini-rhizotron
Image data is read out.Wherein, predetermined period can read every other month one by being artificially configured, in general
Secondary, the embodiment of the present invention is to this without specifically limiting.
When reading the image data of mini-rhizotron, image detector CI- can be coupled using 360 degree of multi-level rotary photoelectrics
Soil, root system profile image of the 600Root Scanner (the pocket video imaging system of mini-rhizotron) to root system of plant same position
Carry out indeformable linear data acquisition, this way it is possible to avoid excavate again trench to the root system profile image of root system of plant into
Row acquisition allows to be directly based upon mini-rhizotron, the Growth trends of root system of plant in nondestructive detection soil.
It should be noted that if coupling image detector CI-600Root using above-mentioned 360 degree multi-level rotary photoelectrics
Scanner is acquired the image data of root system of plant, then facilitates acquisition growth parameter(s) in order to subsequent, can acquire 21.56
Centimetres * 19.56 centimetres of high-definition picture is analyzed and processed as image data, and by image data.Wherein, of the invention
Embodiment is to the attribute of acquired image data without specifically limiting.
In step 204, it is based on image data, determines that object to be measured plant is joined in the growth of at least one soil depth
Number.
In embodiments of the present invention, after getting the image data of root system of plant, it can be based on image analysis software, really
Determine growth parameter(s) of the root system of plant at least one soil depth of object to be measured plant.Wherein, image analysis software can be
WinHIZO Tron MF 2012 (root system analysis software), growth parameter(s) can be object to be measured plant at least one soil depth
In root system root long, surface area, projected area, volume, roots oxidizing and root system number.
It should be noted that in order to be fitted the track of plant root growth, the change that monitoring root system of plant is generated with the time
Change, same mini-rhizotron can also be spliced sequentially in time in different month acquired image data, so that plant roots
The growth course of system be more clear it is clear, convenient for research.
In step 205, it is based on growth parameter(s), generates the root biomass of object to be measured plant at least one soil layer depth
Vertical distribution in degree.
In embodiments of the present invention, due to that in step 204, roots oxidizing, root system root can be obtained in image data
Therefore the tissue density of root system of plant can be calculated in long and volume according to roots oxidizing, root system root long and volume.
After determining the tissue density of root system of plant, in order to determine root biomass of the root system of plant in different soil depth, need
The weight of root system of root system of plant is calculated.It should be noted that since different software is got in image data
Growth parameter(s) there may be differences, therefore, can be using in following three formula according to the different growth parameter(s)s got
Any formula determines weight of root system of the root system of plant in current soil depth.
Formula 1:M=aD2LP
Wherein, in equation 1, M is weight of root system, and a is special parameter, and D is roots oxidizing, and L is root system root long, and P is group
Knit density.
Formula 2:M=bP
Wherein, in formula 2, M is weight of root system, and b is special parameter, and P is tissue density.
Formula 3:M=cD2L
Wherein, in equation 3, M is weight of root system, and c is special parameter, and D is roots oxidizing, and L is root system root long.
For each soil depth at least one soil depth, pass through any public affairs in above three formula
Formula can be calculated in the soil depth, the weight of root system of the root system of plant of object to be measured plant, and determine root system of plant
Weight of root system after, using weight of root system as object to be measured plant the soil depth root biomass.Then, successively class
It pushes away, calculates separately root system of plant in the root biomass of at least one soil depth, according to the root system of at least one soil depth
Biomass generates vertical distribution of the root biomass of object to be measured plant at least one soil depth.
In step 206, the vertical distribution according to root biomass at least one soil depth, computation model ginseng
Number constructs the root system of plant vertical distribution model of object to be measured plant.
In embodiments of the present invention, right when determining vertical distribution of the root biomass at least one soil depth
For each soil depth, root system of plant can be calculated in the biomass accumulation percentage of the soil depth.It is counting
Root system of plant is calculated in the biomass accumulation percentage of the soil depth, for a certain soil depth, can first determine plant
Root biomass of the object root system in whole soil depths calculates the root biomass of a certain soil depth in whole soil depths
In root biomass ratio, using ratio as the biomass accumulation percentage of a certain soil depth.
After the process of above-mentioned determining biomass accumulation percentage, for each soil depth, one is all had
Corresponding biomass accumulation percentage, in this way, to the functional relation between soil depth and biomass accumulation percentage into
Row simulation calculates, and can obtain weakening coefficient, determines biomass accumulation percentage, weakens the letter between coefficient and soil depth
Number relationship, using functional relation as the root system of plant vertical distribution model of object to be measured plant.It should be noted that carrying out mould
When quasi- calculating, it can be calculated with Gale (lid that database) building model Y=1- β d, wherein Y is biomass accumulation percentage
Than β is to weaken coefficient, and d is soil depth.The size of β is unrelated with the root system volume of root system of plant or root density, only table
The Characteristics of Vertical Distribution of root system of plant and the relationship of soil depth are levied, the main ginseng as description root system of plant Characteristics of Vertical Distribution
Number, the value of β is bigger, and the percentage for illustrating that root system of plant is distributed in deep soil is bigger, if β value on the contrary is smaller, illustrates have more
More root system of plant integrated distributions are in the soil layer close to earth's surface.
The method provided based on the above embodiment, inventor, which passes through, is based on WinHIZO Tron MF 2012 and Gale,
5 kinds of cinnamomum camphora of Sichuan-chongqing Region, Huang Geshu, China fir, masson pine and bamboo plants are tested to obtain following experimental result:
Cinnamomum camphora, Huang Geshu, China fir, masson pine and bamboo are obtained respectively referring to table 1, in experiment respectively in 0-20cm soil
The root biomass and biomass accumulation percentage of layer, 20-40cm soil layer, 40-60cm soil layer and 60cm or less soil layer.
Table 1
According to the data in above-mentioned table 1, the root system biology of cinnamomum camphora root system of plant in Sichuan-chongqing Region shown in Fig. 2 B can be obtained
The vertical distribution figure of amount；The vertical distribution figure of the root biomass of Sichuan-chongqing Region Huang Pueraria lobota tree plant root system shown in fig. 2 C；Fig. 2 D
Shown in Sichuan-chongqing Region China fir root system of plant root biomass vertical distribution figure；Sichuan-chongqing Region masson pine shown in Fig. 2 E is planted
The root biomass of Sichuan-chongqing Region bamboo root system of plant shown in the vertical distribution figure and Fig. 2 F of the root biomass of object root system
Vertical distribution figure.By Fig. 2 B, Fig. 2 C, Fig. 2 D, Fig. 2 E and Fig. 2 F it is found that cinnamomum camphora 0-20cm soil layer, 20-40cm soil layer,
Root biomass is respectively 2.408g/cm2,3.700g/cm2,1.960g/ in 40-60cm soil layer and 60cm or less soil layer
Cm2 and 0.252g/cm2, biomass accumulation percentage are respectively 35.36%.40.38%.19.96% and 4.30%；Huang Geshu
Root system biomass accumulation percentage score in 0-20cm soil layer, 20-40cm soil layer, 40-60cm soil layer and 60cm or less soil layer
It Wei not 70.29%.23.95%.4.84% and 0.91%；China fir 0-20cm soil layer, 20-40cm soil layer, 40-60cm soil layer with
And biomass accumulation percentage is respectively 43.37%, 33.84%, 16.73% and 6.06% in 60cm or less soil layer；Masson pine
Biomass accumulation percentage is respectively in 0-20cm soil layer, 20-40cm soil layer, 40-60cm soil layer and 60cm or less soil layer
49.62%, 34.49%, 12.00% and 3.89%；Bamboo 0-20cm soil layer, 20-40cm soil layer, 40-60cm soil layer and
Biomass accumulation percentage is respectively 62.28%, 32.25%, 4.56%, 0.91% in 60cm or less soil layer.In conclusion fragrant
The root system of plant of camphor tree, China fir and masson pine can reach deeper soil layer, 60cm soil layer below still have more diameter compared with
Big root system of plant distribution, it is 3.89%-6.06% that object amount, which accumulates percentage,；And Huang Geshu and the distribution of the root system of plant of bamboo
Just relatively shallower, the root system of plant of 94.25%-94.53% is distributed in the soil layer of 0-40cm, 62.28%-70.29%'s
Root system is distributed in the soil layer of 0-20cm.
It is available as described in Table 2 in this way, when carrying out simulation based on Gale building model Y=1- β d and calculating
Model parameter.
Table 2
| Tree species | Weaken factor beta | Root system vertical distribution model | Related coefficient |
| Cinnamomum camphora | 0.9846 | Y=1-0.9846d | 0.9843 |
| Huang Geshu | 0.8013 | Y=1-0.8013d | 0.9310 |
| China fir | 0.9473 | Y=1-0.9473d | 0.9669 |
| Masson pine | 0.8562 | Y=1-0.9562d | 0.8572 |
| Bamboo | 0.8194 | Y=1-0.9794d | 0.9503 |
As shown in Table 2, Sichuan-chongqing Region cinnamomum camphora, the plant roots of Huang Geshu, 5 kinds of China fir, masson pine and bamboo typical plants
The index variation range that slackens of system is 0.8013-0.9846, wherein the root system of plant of cinnamomum camphora slackens coefficient and is up to 0.9846,
The root system of plant of Huang Geshu slackens coefficient minimum 0.8013, therefore, for cinnamomum camphora, Huang Geshu, China fir, masson pine and bamboo
For 5 kinds of typical plants, distribution proportion of the root system of plant of cinnamomum camphora in deep soil is maximum, and China fir, masson pine take second place, yellow Pueraria lobota
It sets, the root system of plant of bamboo is mainly distributed in shallower soil layer.
Method provided in an embodiment of the present invention is based on by the image data of periodic reading preset number mini-rhizotron
Image data determines that object to be measured plant in the growth parameter(s) of at least one soil depth, and based on growth parameter(s), generates to be measured
Vertical distribution of the root biomass of target plant at least one soil depth, allows to according to root biomass extremely
Vertical distribution in a few soil depth, computation model parameter construct the root system of plant vertical distribution mould of object to be measured plant
Type is realized raw to root system of plant to understand the distribution situation of growing plants root system in vertical direction above gas pipeline
The safeguard procedures of gas pipeline are carried out in long prediction in advance, avoid destruction of the root system of plant to gas pipeline.
Fig. 3 A is a kind of block diagram of root system of plant vertical distribution model construction device shown according to an exemplary embodiment.
Referring to Fig. 3 A, which includes read module 301, determining module 302, generation module 303 and building module 304.
The read module 301, for the image data of periodic reading preset number mini-rhizotron, mini-rhizotron is embedded in moat
In ditch, trench is in the target position of object to be measured surrounding plants；
The determining module 302 determines object to be measured plant in the life of at least one soil depth for being based on image data
Long parameter；
The generation module 303 obtains the root biomass of object to be measured plant at least one for being based on growth parameter(s)
Vertical distribution in soil depth；
The building module 304 calculates mould for the vertical distribution according to root biomass at least one soil depth
Shape parameter constructs the root system of plant vertical distribution model of object to be measured plant.
Device provided in an embodiment of the present invention is based on by the image data of periodic reading preset number mini-rhizotron
Image data determines that object to be measured plant in the growth parameter(s) of at least one soil depth, and based on growth parameter(s), generates to be measured
Vertical distribution of the root biomass of target plant at least one soil depth, allows to according to root biomass extremely
Vertical distribution in a few soil depth, computation model parameter construct the root system of plant vertical distribution mould of object to be measured plant
Type is realized raw to root system of plant to understand the distribution situation of growing plants root system in vertical direction above gas pipeline
The safeguard procedures of gas pipeline are carried out in long prediction in advance, avoid destruction of the root system of plant to gas pipeline.
In another embodiment, referring to Fig. 3 B, which further includes choosing module 305 and embedded module 306.
The selection module 305 excavates moat in the target position of object to be measured surrounding plants for choosing object to be measured plant
Ditch；
The embedded module 306, for burying preset number mini-rhizotron in trench according to embedded rule.
In another embodiment, selection module 305, for choosing the object to be measured plant close to gas pipeline；?
Object to be measured plant determines the target position apart from object to be measured plant pre-determined distance close to gas pipeline side；In target position
Trench is excavated, trench is 2 meters long, 1-1.5 meters wide, deep 1.5-2.0m.
In another embodiment, embedded module 306, for micro- for each of preset number mini-rhizotron
Pipe, by mini-rhizotron and horizontal plane at 60 degree of angle oblique cuttings in trench；Ground is exposed to by 20 centimetres above mini-rhizotron；According to original soil
Earth level fills out back soil in trench.
In another embodiment, the determining module 302 counts image data for being based on image analysis software
According to extraction, root system root long, surface area, projected area, volume, root of the object to be measured plant at least one soil depth are obtained
It is diameter and root system number；By root system root long of the object to be measured plant at least one soil depth, surface area, perspective plane
The growth parameter(s) of product, volume, roots oxidizing and root system number as object to be measured plant.
In another embodiment, the generation module 303 determines object to be measured plant extremely for being based on growth parameter(s)
Roots oxidizing, root system root long and tissue density in a few soil depth；For each of at least one soil depth
Soil depth, according to the roots oxidizing of object to be measured plant, root system root long and tissue density, be calculated soil depth to
Survey the weight of root system of target plant；Using weight of root system as object to be measured plant soil depth root biomass；Based on extremely
The root biomass of a few soil depth generates the root biomass of object to be measured plant at least one soil depth
Vertical distribution.
In another embodiment, the building module 304 is used for according to root biomass at least one soil depth
Vertical distribution, calculate weakening coefficient and biomass accumulation percentage of the object to be measured plant at least one soil depth；
Coefficient and biomass accumulation percentage will be weakened as model parameter；It determines biomass accumulation percentage, weaken coefficient and soil
Functional relation between layer depth, using functional relation as the root system of plant vertical distribution model of object to be measured plant.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
Fig. 4 is a kind of frame of root system of plant vertical distribution model construction device 400 shown according to an exemplary embodiment
Figure.For example, device 400 can be mobile phone, computer, digital broadcasting terminal, messaging device, game console put down
Panel device, Medical Devices, body-building equipment, personal digital assistant etc..
Referring to Fig. 4, device 400 may include following one or more components: processing component 402, memory 404, power supply
Component 406, multimedia component 408, audio component 410, the interface 412 of I/O (Input/Output, input/output), sensor
Component 414 and communication component 416.
The integrated operation of the usual control device 400 of processing component 402, such as with display, telephone call, data communication, phase
Machine operation and record operate associated operation.Processing component 402 may include that one or more processors 420 refer to execute
It enables, to perform all or part of the steps of the methods described above.In addition, processing component 402 may include one or more modules, just
Interaction between processing component 402 and other assemblies.For example, processing component 402 may include multi-media module, it is more to facilitate
Interaction between media component 408 and processing component 402.
Memory 404 is configured as storing various types of data to support the operation in device 400.These data are shown
Example includes the instruction of any application or method for operating on device 400, contact data, and telephone book data disappears
Breath, picture, video etc..Memory 404 can be by any kind of volatibility or non-volatile memory device or their group
It closes and realizes, such as SRAM (Static Random Access Memory, static random access memory), EEPROM
(Electrically-Erasable Programmable Read-Only Memory, the read-only storage of electrically erasable
Device), EPROM (Erasable Programmable Read Only Memory, Erasable Programmable Read Only Memory EPROM), PROM
(Programmable Read-Only Memory, programmable read only memory), and ROM (Read-Only Memory, it is read-only to deposit
Reservoir), magnetic memory, flash memory, disk or CD.
Power supply module 406 provides electric power for the various assemblies of device 400.Power supply module 406 may include power management system
System, one or more power supplys and other with for device 400 generate, manage, and distribute the associated component of electric power.
Multimedia component 408 includes the screen of one output interface of offer between described device 400 and user.One
In a little embodiments, screen may include LCD (Liquid Crystal Display, liquid crystal display) and TP (Touch
Panel, touch panel).If screen includes touch panel, screen may be implemented as touch screen, from the user to receive
Input signal.Touch panel includes one or more touch sensors to sense the gesture on touch, slide, and touch panel.Institute
The boundary of a touch or slide action can not only be sensed by stating touch sensor, but also be detected and the touch or slide phase
The duration and pressure of pass.In some embodiments, multimedia component 408 includes that a front camera and/or postposition are taken the photograph
As head.When device 400 is in operation mode, such as in a shooting mode or a video mode, front camera and/or rear camera can
With the multi-medium data outside reception.Each front camera and rear camera can be a fixed optical lens system
Or there are focusing and optical zoom capabilities.
Audio component 410 is configured as output and/or input audio signal.For example, audio component 410 includes a MIC
(Microphone, microphone), when device 400 is in operation mode, such as call mode, recording mode, and voice recognition mode
When, microphone is configured as receiving external audio signal.The received audio signal can be further stored in memory 404
Or it is sent via communication component 416.In some embodiments, audio component 410 further includes a loudspeaker, for exporting audio
Signal.
I/O interface 412 provides interface between processing component 402 and peripheral interface module, and above-mentioned peripheral interface module can
To be keyboard, click wheel, button etc..These buttons may include, but are not limited to: home button, volume button, start button and lock
Determine button.
Sensor module 414 includes one or more sensors, and the state for providing various aspects for device 400 is commented
Estimate.For example, sensor module 414 can detecte the state that opens/closes of equipment 400, the relative positioning of component, such as component
For the display and keypad of device 400, sensor module 414 can be with the position of 400 1 components of detection device 400 or device
Set change, the existence or non-existence that user contacts with device 400, the temperature in 400 orientation of device or acceleration/deceleration and device 400
Variation.Sensor module 414 may include proximity sensor, be configured to detect without any physical contact near
The presence of object.Sensor module 414 can also include optical sensor, such as CMOS (Complementary Metal Oxide
Semiconductor, complementary metal oxide) or CCD (Charge-coupled Device, charge coupled cell) image biography
Sensor, for being used in imaging applications.In some embodiments, which can also include acceleration sensing
Device, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 416 is configured to facilitate the communication of wired or wireless way between device 400 and other equipment.Device
400 can access the wireless network based on communication standard, such as WiFi, 2G or 3G or their combination.In an exemplary implementation
In example, communication component 416 receives broadcast singal or broadcast related information from external broadcasting management system via broadcast channel.
In one exemplary embodiment, the communication component 416 further includes that (Near Field Communication, near field are logical by NFC
Letter) module, to promote short range communication.For example, RFID (Radio Frequency can be based in NFC module
Identification, radio frequency identification) technology, IrDA (Infra-red Data Association, Infrared Data Association) skill
Art, UWB (Ultra Wideband, ultra wide band) technology, BT (Bluetooth, bluetooth) technology and other technologies are realized.
In the exemplary embodiment, device 400 can be by one or more ASIC (Application Specific
Integrated Circuit, application specific integrated circuit), DSP (Digital signal Processor, at digital signal
Manage device), DSPD (Digital signal Processor Device, digital signal processing appts), PLD (Programmable
Logic Device, programmable logic device), FPGA) (Field Programmable Gate Array, field programmable gate
Array), controller, microcontroller, microprocessor or other electronic components realize, for executing above-mentioned root system of plant vertical distribution
Model building method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 404 of instruction, above-metioned instruction can be executed by the processor 420 of device 400 to complete the above method.For example,
The non-transitorycomputer readable storage medium can be ROM, RAM (Random Access Memory, random access memory
Device), CD-ROM (Compact Disc Read-Only Memory, compact disc read-only memory), tape, floppy disk and light data deposit
Store up equipment etc..
A kind of non-transitorycomputer readable storage medium, when the instruction in the storage medium is vertically divided by root system of plant
When the processor of cloth model construction device executes, so that root system of plant vertical distribution model construction device is able to carry out above-mentioned plant
Root system vertical distribution model building method.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (14)
1. a kind of root system of plant vertical distribution model building method, which is characterized in that the described method includes:
The image data of periodic reading preset number mini-rhizotron, the mini-rhizotron are embedded in trench, and the trench is in
The target position of object to be measured surrounding plants；
Based on described image data, determine the object to be measured plant in the growth parameter(s) of at least one soil depth；
Based on the growth parameter(s), the root biomass of the object to be measured plant is generated at least one described soil depth
Vertical distribution；
According to vertical distribution of the root biomass at least one described soil depth, computation model parameter constructs institute
State the root system of plant vertical distribution model of object to be measured plant.
2. the method according to claim 1, wherein the image of the periodic reading preset number mini-rhizotron
Before data, the method also includes:
Object to be measured plant is chosen, excavates trench in the target position of the object to be measured surrounding plants；
According to embedded rule, preset number mini-rhizotron is buried in the trench.
3. according to the method described in claim 2, it is characterized in that, the selection object to be measured plant, in the object to be measured
Excavate trench in the target position of surrounding plants
Choose the object to be measured plant close to gas pipeline；
In the object to be measured plant close to the gas pipeline side, the institute apart from the object to be measured plant pre-determined distance is determined
State target position；
The trench is excavated in the target position, the trench is 2 meters long, 1-1.5 meters wide, deep 1.5-2.0m.
4. according to the method described in claim 2, it is characterized in that, the embedded rule of the basis, is buried pre- in the trench
If number mini-rhizotron includes:
For each mini-rhizotron in the preset number mini-rhizotron, by the mini-rhizotron and horizontal plane at 60 degree of angle oblique cuttings in
In the trench；
Ground is exposed to by 20 centimetres above the mini-rhizotron；
Soil is filled out back in the trench according to original soil layer.
5. determining the mesh to be measured the method according to claim 1, wherein described be based on described image data
Plant, which is marked, in the growth parameter(s) of at least one soil depth includes:
Based on image analysis software, data extraction is carried out to described image data, obtain the object to be measured plant it is described extremely
Root system root long, surface area, projected area, volume, roots oxidizing and root system number in a few soil depth；
By root system root long, surface area, projected area, body of the object to be measured plant at least one described soil depth
Product, the growth parameter(s) of roots oxidizing and root system number as the object to be measured plant.
6. generating the mesh to be measured the method according to claim 1, wherein described be based on the growth parameter(s)
Marking vertical distribution of the root biomass of plant at least one described soil depth includes:
Based on the growth parameter(s), determine roots oxidizing of the object to be measured plant at least one described soil depth,
Root system root long and tissue density；
For each soil depth at least one described soil depth, according to the roots oxidizing of the object to be measured plant,
The weight of root system of the object to be measured plant of the soil depth is calculated in root system root long and tissue density；
Using the weight of root system as the object to be measured plant the soil depth root biomass；
Based on the root biomass of at least one soil depth, the root biomass of the object to be measured plant is generated in institute
State the vertical distribution at least one soil depth.
7. the method according to claim 1, wherein it is described according to the root biomass it is described at least one
Vertical distribution in soil depth, computation model parameter construct the root system of plant vertical distribution model of the object to be measured plant
Include:
According to vertical distribution of the root biomass at least one described soil depth, the object to be measured plant is calculated
Weakening coefficient and biomass accumulation percentage at least one described soil depth；
Using the weakening coefficient and the biomass accumulation percentage as the model parameter；
The biomass accumulation percentage, the functional relation weakened between coefficient and the soil depth are determined, by institute
State root system of plant vertical distribution model of the functional relation as the object to be measured plant.
8. a kind of root system of plant vertical distribution model construction device, which is characterized in that described device includes:
Read module, for the image data of periodic reading preset number mini-rhizotron, the mini-rhizotron is embedded in trench,
The trench is in the target position of object to be measured surrounding plants；
Determining module determines the object to be measured plant in the life of at least one soil depth for being based on described image data
Long parameter；
Generation module, for being based on the growth parameter(s), obtain the root biomass of the object to be measured plant it is described at least
Vertical distribution in one soil depth；
Module is constructed, for the vertical distribution according to the root biomass at least one described soil depth, calculates mould
Shape parameter constructs the root system of plant vertical distribution model of the object to be measured plant.
9. device according to claim 8, which is characterized in that described device further include:
Module is chosen, for choosing object to be measured plant, excavates trench in the target position of the object to be measured surrounding plants；
Embedded module, for burying preset number mini-rhizotron in the trench according to embedded rule.
10. device according to claim 9, which is characterized in that the selection module, for choosing close to gas pipeline
Object to be measured plant；In the object to be measured plant close to the gas pipeline side, determination is pre- apart from the object to be measured plant
If the target position of distance；The trench is excavated in the target position, the trench is 2 meters long, and it is 1-1.5 meters wide, it is deep
1.5-2.0m。
11. device according to claim 9, which is characterized in that the embedded module, for for the preset number
Each mini-rhizotron in mini-rhizotron, by the mini-rhizotron and horizontal plane at 60 degree of angle oblique cuttings in the trench；By described micro-
Ground is exposed to for 20 centimetres above pipe；Soil is filled out back in the trench according to original soil layer.
12. device according to claim 8, which is characterized in that the determining module, for being based on image analysis software,
Data extraction is carried out to described image data, obtains root system of the object to be measured plant at least one described soil depth
Root long, surface area, projected area, volume, roots oxidizing and root system number；By the object to be measured plant it is described at least one
Root system root long, surface area, projected area, volume, roots oxidizing and root system number in soil depth is as the object to be measured
The growth parameter(s) of plant.
13. device according to claim 8, which is characterized in that the generation module, for being based on the growth parameter(s),
Determine roots oxidizing, root system root long and tissue density of the object to be measured plant at least one described soil depth；
For each soil depth at least one described soil depth, according to roots oxidizing, the root system of the object to be measured plant
The weight of root system of the object to be measured plant of the soil depth is calculated in root long and tissue density；By the root system
Dry weight as the object to be measured plant the soil depth root biomass；Based at least one soil depth
Root biomass generates vertical point of the root biomass of the object to be measured plant at least one described soil depth
Cloth.
14. device according to claim 8, which is characterized in that the building module, for according to the root biomass
Vertical distribution at least one described soil depth calculates the object to be measured plant at least one described soil depth
In weakening coefficient and biomass accumulation percentage；Using the weakening coefficient and the biomass accumulation percentage as the mould
Shape parameter；Determine the biomass accumulation percentage, the functional relation weakened between coefficient and the soil depth, it will
Root system of plant vertical distribution model of the functional relation as the object to be measured plant.
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