CN104598730B - A kind of method and system for determining the eco-filtration band protection gradient - Google Patents
A kind of method and system for determining the eco-filtration band protection gradient Download PDFInfo
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- CN104598730B CN104598730B CN201510017648.4A CN201510017648A CN104598730B CN 104598730 B CN104598730 B CN 104598730B CN 201510017648 A CN201510017648 A CN 201510017648A CN 104598730 B CN104598730 B CN 104598730B
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Abstract
The invention provides a kind of method and system for determining the eco-filtration band protection gradient, this method includes：According to the difference of the gradient of eco-filtration band, in eco-filtration band with choosing several samples with gradient slope；Some sample points are laid in every piece of sample ground；The concentration of the various nutriments in every piece of sample ground at each sample point is detected, the concentration of the various nutriments on each sample ground is calculated according to the concentration of the various nutriments at each sample point in every piece of sample ground；According to the gradient of eco-filtration band corresponding to the concentration of the various nutriments on each sample ground and each sample ground, multiple linear regression model is established；The relational model of the protection gradient and water quality is established according to multiple linear regression model, determines that eco-filtration band protects the gradient according to the relational model of the protection gradient and water quality.The present invention can be rational and quantitative determination it is optimal eco-filtration band protection the gradient, purification of water quality is better achieved, effectively improves ecological benefits.
Description
Technical field
The present invention relates to eco-filtration band design field, more particularly to a kind of determination eco-filtration band to protect the gradient
Method and system.
Background technology
River (lake, storehouse) bank eco-filtration band is in land and water habitat ecotone, be forest ecosystem important component it
One.Its ecological effect is mainly that vegetation control water body and the land entirety habitat of eco-filtration band are reflected.Due to eco-filtration
The size of the various ecological functions of band is influenceed by self structure, therefore different eco-filtrations possesses different lifes with the gradient
State effect.Previous studies find that the protection effect of eco-filtration band is influenceed by gradient size.But the protection effect of eco-filtration band
Should be also more rare at present with the quantitative study between the gradient.Therefore, maximized to solve ecological functions between the configuration gradient
Quantitative relationship, seek a kind of science determine river (lake, storehouse) bank eco-filtration band protection the gradient method be extremely necessary,
Also reasonability is had more.
In the prior art, river (lake, storehouse) bank eco-filtration is with a slope determines in being configured only as eco-filtration band
One factor of background is counted, and neither one is unified and accurately method is combined it to quantitatively determine with protection effect.
It can not meet currently to calculating demand of river (lake, storehouse) the bank eco-filtration with Ecosystem Service Value amount.
The content of the invention
In view of the above problems, it is proposed that the present invention so as to provide one kind overcome above mentioned problem or at least in part solve or
Person slows down the method for the determination eco-filtration band protection gradient of above mentioned problem and corresponding determination eco-filtration band protects the gradient
System.
According to an aspect of the invention, there is provided a kind of method for determining the eco-filtration band protection gradient, this method bag
Include：
According to the difference of the gradient of eco-filtration band, choosing several in the eco-filtration band has the sample of gradient slope
Ground；
Some sample points are laid in every piece of sample ground；
The concentration of the various nutriments in every piece of sample ground at each sample point is detected, according to each in every piece of sample ground
The concentration of various nutriments at sample point calculates the concentration of the various nutriments on each sample ground；
According to eco-filtration band corresponding to the concentration of the various nutriments on each sample ground and each sample ground
The gradient, establish multiple linear regression model；
The relational model of the protection gradient and water quality is established according to the multiple linear regression model, according to the protection gradient
Determine that eco-filtration band protects the gradient with the relational model of water quality.
Preferably, it is described to lay some sample points in every piece of sample ground, specifically include：
In every piece of sample ground some sample points are laid according to the diagonal on various kinds ground.
Preferably, the concentration of the various nutriments in every piece of sample ground of the detection at each sample point, according to described every
The concentration of various nutriments in block sample ground at each sample point calculates the concentration of the various nutriments on each sample ground, specifically
Including：
Water sampling is distinguished at each sample point in every piece of sample ground；
The water sample at each sample point is detected respectively, obtained various at each sample point in every piece of sample ground
The concentration of nutriment；
The average value of the concentration with each nutriment at equally interior each sample point is calculated, by the average value
Concentration as this kind of nutriment on current sample ground.
Preferably, the multiple linear regression model is specific as follows；
Y=ax1+bx2+cx3+dx4+ ...+n,
Wherein, Y be ecological filter bag the gradient, unit：Degree, x1、x2、x3、x4... it is the concentration of certain nutriment, it is single
Position：Mg/L, a, b, c, d and n are model coefficient.
According to another aspect of the present invention, there is provided a kind of system for determining the eco-filtration band protection gradient, the system
Including：
Choose unit sample, for the difference of the gradient according to eco-filtration band, chosen in the eco-filtration band some
The individual sample with gradient slope；
Sample point setting unit, for laying some sample points in every piece of sample ground；
Concentration detecting unit, for detecting the concentration of the various nutriments in every piece of sample ground at each sample point, according to
The concentration of various nutriments in every piece of sample ground at each sample point calculates the dense of the various nutriments on each sample ground
Degree；
Multiple linear regression model establishes unit, concentration and institute for the various nutriments according to each sample ground
The gradient of eco-filtration band corresponding to each sample ground is stated, establishes multiple linear regression model；
Eco-filtration band protect gradient computing unit, for according to the multiple linear regression model establish protection the gradient with
The relational model of water quality, the eco-filtration band protection gradient is calculated according to the relational model of the protection gradient and water quality.
Preferably, the sample point setting unit, laid specifically for the diagonal according to various kinds ground in every piece of sample ground
Some sample points.
Preferably, the concentration detecting unit, is specifically included：
Water sample acquisition module, for distinguishing water sampling at each sample point in every piece of sample ground；
Concentration detection module, for being detected respectively to the water sample at each sample point, obtain in every piece of sample ground
The concentration of various nutriments at each sample point；
Computing module, for calculating being averaged for the concentration with each nutriment at equally interior each sample point
Value, the concentration using the average value as this kind of nutriment on current sample ground.
Beneficial effects of the present invention are：
The present invention is on the premise of stability of plant community is ensured, the optimal angle of nutriment removal effect from water body
Set out, on the premise of eco-filtration band reaches best purification function, the optimal ecological mistake of determination that can be rational and quantitative
Strainer protects value of slope, improves the ecological effect of eco-filtration band.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is a kind of flow chart of method for determining the eco-filtration band protection gradient provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram for laying sample point in the every piece of sample ground proposed in the embodiment of the present invention according to diagonal；And
Fig. 3 is a kind of structural representation of system for determining the eco-filtration band protection gradient provided in an embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges
Diction " comprising " refer to the feature, integer, step, operation, element and/or component be present, but it is not excluded that in the presence of or addition
One or more other features, integer, step, operation, element, component and/or their groups.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology), there is the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also
Understand, those terms defined in such as general dictionary, it should be understood that have with the context of prior art
The consistent meaning of meaning, and unless by specific definitions, otherwise will not be explained with the implication of idealization or overly formal.
Fig. 1 is a kind of flow chart of method for determining the eco-filtration band protection gradient provided in an embodiment of the present invention.
Reference picture 1, the method provided in an embodiment of the present invention for determining the eco-filtration band protection gradient comprise the following steps：
S11, the difference according to the gradient of eco-filtration band, choosing several in the eco-filtration band has gradient slope
Sample；
S12, lay some sample points in every piece of sample ground；
The concentration of various nutriments in every piece of S13, detection sample ground at each sample point, according in every piece of sample ground
The concentration of various nutriments at each sample point calculates the concentration of the various nutriments on each sample ground；
S14, the concentration according to the various nutriments on each sample ground and eco-filtration corresponding to each sample ground
The gradient of band, establishes multiple linear regression model；
S15, the relational model for protecting the gradient and water quality is established according to the multiple linear regression model, according to the protection
The relational model of the gradient and water quality determines that eco-filtration band protects the gradient.
In order to further embody the superiority of invention, disclose further below present invention determine that eco-filtration band protects the gradient
Method in step S12 fine division step, come embody according to this step realize another embodiment.This step specifically includes：
Some sample points are laid according to the diagonal on various kinds ground in every piece of sample ground, sample point is equably laid in the diagonal on every piece of sample ground
On.The embodiment of the present invention is not specifically limited to the quantity of the sample point of the diagonal laying according to various kinds ground.
Further, the step S13 in the embodiment of the present invention：Detect the various nutrition at each sample point in every piece of sample ground
The concentration of material, each of each sample ground is calculated according to the concentration of the various nutriments at each sample point in every piece of sample ground
The concentration of kind nutriment, is specifically included：
Water sampling is distinguished at each sample point in every piece of sample ground；
The water sample at each sample point is detected respectively, obtained various at each sample point in every piece of sample ground
The concentration of nutriment；
The average value of the concentration with each nutriment at equally interior each sample point is calculated, by the average value
Concentration as this kind of nutriment on current sample ground.
Preferably, the multiple linear regression model is specific as follows；
Y=ax1+bx2+cx3+dx4+ ...+n,
Wherein, Y be ecological filter bag the gradient, unit：Degree, x1、x2、x3、x4... it is the concentration of certain nutriment, it is single
Position：Mg/L, a, b, c, d and n are model coefficient.
In the embodiment of the present invention, work as x1,x2,x3,x4... when being equal to 0, i.e. during Y=n, value of slope now is river
(lake, storehouse) bank buffer strip reaches protection gradient during best purification function, i.e. purification and nutrition physical efficiency highest.
The present invention is clearly demonstrated below by specific embodiment.
Some pieces of typical samples first, chosen on eco-filtration band, arbor all in the buffer strip should be included, filled
Wood, draft and aquatic plant species, while to be selected according to the slope gradient of buffer strip.The present embodiment is enclosed with Hebei lily magnolia
It is specifically described exemplified by the eco-filtration band of field riverbank.
The embodiment of the present invention have chosen nine pieces under 5 °, 15 ° and 25 ° three kinds of gradients to Hebei Mulan Paddock riparian buffer strips
Typical sample, plot size is all 10m × 10m, and two diagonal uniform stationings on sample ground sample, as shown in Fig. 2 measure water
COD, TP, PO in body4 3--P、TN、NO3 -The concentration value of the nutriments such as-N see the table below.
Nutrient concentrations value under the enveloping field riparian buffer strips different densities of table 1
According to multiple linear regression model, the relational model that riverbank eco-filtration band protects the gradient and water quality is established, specifically
It is as follows：
Y=0.036x1-1.727x2-11.796x3-0.057x4+1.369x5+14.755
In formula, x1--- COD in water body concentration, unit：mg/L；
x2--- TN concentration in water body, unit：mg/L；
x3--- TP concentration in water body, unit：mg/L；
x4--- NO in water body3 -- N concentration, unit：mg/L；
x5--- PO in water body4 3-- P concentration, unit：mg/L.
By equation, the riparian buffer strips gradient and COD in water body concentration, PO4 3-- P concentration is directly proportional, and in water body
TN concentration, TP concentration, NO3 -- N concentration is inversely proportional.When water body items nutrition content level off to 0 when, Y=14.755 °, therefore can
The optimal protection gradient of riparian buffer strips is set as 14.8 °.
Optimal angle of nutriment removal effect from water body of the embodiment of the present invention, reaches most in eco-filtration band
On the premise of good purification function, the optimal eco-filtration band protection value of slope of determination that can be rational and quantitative, water quality is realized
Purification, effectively improve the ecological benefits of eco-filtration band.
Fig. 3 is a kind of structural representation of system for determining the eco-filtration band protection gradient provided in an embodiment of the present invention.
Reference picture 3, the system provided in an embodiment of the present invention for determining the eco-filtration band protection gradient include：
Unit 11 is chosen, for the difference of the gradient according to eco-filtration band, if being chosen in the eco-filtration band sample
The dry individual sample with gradient slope；Unit 11 is chosen to be specifically used in the eco-filtration sample described in the embodiment of the present invention
Band with can choosing several rectangles, parallelogram and the sample of geometry such as trapezoidal, to this present invention does not do specific limit
Fixed, the vegetation density on several rectangle sample ground changes in gradient.
Sample point setting unit 12, for laying some sample points in every piece of sample ground；
Concentration detecting unit 13, for detecting the concentration of the various nutriments in every piece of sample ground at each sample point, root
The various nutriments on each sample ground are calculated according to the concentration of the various nutriments at each sample point in every piece of sample ground
Concentration；
Multiple linear regression model establishes unit 14, for the various nutriments according to each sample ground concentration and
The gradient of eco-filtration band, establishes multiple linear regression model corresponding to each sample ground；
Eco-filtration band protection gradient computing unit 15, for establishing the protection gradient according to the multiple linear regression model
With the relational model of water quality, the eco-filtration band protection gradient is calculated according to the relational model of the protection gradient and water quality.
Further, the sample point setting unit 12 in the embodiment of the present invention, specifically in every piece of sample ground according to each
The diagonal on sample ground lays some sample points.
Further, the concentration detecting unit 13 in the embodiment of the present invention, is specifically included：
Water sample acquisition module, for distinguishing water sampling at each sample point in every piece of sample ground；
Concentration detection module, for being detected respectively to the water sample at each sample point, obtain in every piece of sample ground
The concentration of various nutriments at each sample point；
Computing module, for calculating being averaged for the concentration with each nutriment at equally interior each sample point
Value, the concentration using the average value as this kind of nutriment on current sample ground.Wherein, multiple linear regression model is specifically such as
Under；
Y=ax1+bx2+cx3+dx4+ ...+n,
Wherein, Y be ecological filter bag the gradient, unit：Degree, x1、x2、x3、x4... it is the concentration of certain nutriment, it is single
Position：Mg/L, a, b, c, d and n are model coefficient.
In summary, using the method and system of the determination eco-filtration band protection gradient proposed by the present invention, ensureing to plant
On the premise of thing stability of community, the optimal angle of nutriment removal effect from water body, reach in eco-filtration band
On the premise of best purification function, the optimal eco-filtration band protection value of slope of determination that can be rational and quantitative, water is realized
Matter purifies, and effectively improves the ecological benefits of eco-filtration band.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can lead to
Hardware realization is crossed, the mode of necessary general hardware platform can also be added by software to realize.Based on such understanding, this hair
Bright technical scheme can be embodied in the form of software product, and the software product can be stored in a non-volatile memories
In medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including some instructions are causing a computer equipment (can be
Personal computer, server, or network equipment etc.) perform method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module or stream in accompanying drawing
Journey is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in system in embodiment can describe be divided according to embodiment
It is distributed in the system of embodiment, respective change can also be carried out and be disposed other than in one or more systems of the present embodiment.On
The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.
Disclosed above is only several specific embodiments of the present invention, and still, the present invention is not limited to this, any ability
What the technical staff in domain can think change should all fall into protection scope of the present invention.
Claims (7)
- A kind of 1. method for determining the eco-filtration band protection gradient, it is characterised in that methods described includes：According to the difference of the gradient of eco-filtration band, in the eco-filtration band with choosing several samples with gradient slope；Some sample points are laid in every piece of sample ground；The concentration of the various nutriments in every piece of sample ground at each sample point is detected, according to each sampling in every piece of sample ground The concentration of various nutriments at point calculates the concentration of the various nutriments on each sample ground；According to the gradient of eco-filtration band corresponding to the concentration of the various nutriments on each sample ground and each sample ground, Establish multiple linear regression model；The relational model of the protection gradient and water quality is established according to the multiple linear regression model, according to the protection gradient and water The relational model of matter determines that eco-filtration band protects the gradient.
- 2. according to the method for claim 1, it is characterised in that it is described to lay some sample points in every piece of sample ground, specifically Including：In every piece of sample ground some sample points are laid according to the diagonal on various kinds ground.
- 3. according to the method for claim 1, it is characterised in that various at each sample point in every piece of sample ground of the detection The concentration of nutriment, according to the concentration of the various nutriments at each sample point in every piece of sample ground with calculating each sample Various nutriments concentration, specifically include：Water sampling is distinguished at each sample point in every piece of sample ground；The water sample at each sample point is detected respectively, obtains the various nutrition at each sample point in every piece of sample ground The concentration of material；Calculate the average value of the concentration with each nutriment at equally interior each sample point, using the average value as The concentration of this kind of nutriment on current sample ground.
- 4. according to the method described in claim any one of 1-3, it is characterised in that the multiple linear regression model is specific such as Under；Y=ax1+bx2+cx3+dx4+ ...+n,Wherein, Y be ecological filter bag the gradient, unit：Degree, x1、x2、x3、x4... for the concentration of certain nutriment, unit：mg/ L, a, b, c, d and n are model coefficient.
- A kind of 5. system for determining the eco-filtration band protection gradient, it is characterised in that including：Choose unit sample, for the difference of the gradient according to eco-filtration band, several tools are chosen in the eco-filtration band With having the sample of gradient slope；Sample point setting unit, for laying some sample points in every piece of sample ground；Concentration detecting unit, for detecting the concentration of the various nutriments in every piece of sample ground at each sample point, according to described The concentration of various nutriments in every piece of sample ground at each sample point calculates the concentration of the various nutriments on each sample ground；Multiple linear regression model establishes unit, for the concentration of the various nutriments according to each sample ground and described each The gradient of eco-filtration band, establishes multiple linear regression model corresponding to individual sample ground；Eco-filtration band protects gradient computing unit, for establishing the protection gradient and water quality according to the multiple linear regression model Relational model, the eco-filtration band protection gradient is calculated according to the relational model of the protection gradient and water quality.
- 6. system according to claim 5, it is characterised in that the sample point setting unit, specifically in every piece of sample In ground some sample points are laid according to the diagonal on various kinds ground.
- 7. system according to claim 6, it is characterised in that the concentration detecting unit, specifically include：Water sample acquisition module, for distinguishing water sampling at each sample point in every piece of sample ground；Concentration detection module, for being detected respectively to the water sample at each sample point, obtain each in every piece of sample ground The concentration of various nutriments at sample point；Computing module, will for calculating the average value of the concentration with each nutriment at equally interior each sample point Concentration of the average value as this kind of nutriment on current sample ground.
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| KR20120085144A (en) * | 2011-10-05 | 2012-07-31 | 주식회사 켐에쎈 | Multiple linear regression-artificial neural network hybrid model predicting water solubility of pure organic compound |
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