CN107451755A - A kind of demarcation method of City-scale ecology red line - Google Patents
A kind of demarcation method of City-scale ecology red line Download PDFInfo
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Abstract
The present invention relates to ecological protection field, a kind of particularly demarcation method of City-scale ecology red line.The invention discloses a kind of demarcation method of City-scale ecology red line; from down town; using the circular annular region of increasing radii as research object; the region that the particularly important region area accounting value of ecosystems services is more than its accounting average value of city holistic approach area is found out, it is ecological protection red line area to delimit this region.The present invention can calculate one it is feasible, easy to operate quickly, visualization is high, can characterize the ecological red line of urban development roughly; city development at this stage and the expansion region high to ecosystem service importance can substantially be evaluated occupies degree, and the ecological protection bottom line of a urban development is grasped from the visual angle of macroscopic view.
Description
Technical field
The invention belongs to ecological protection field, more particularly to a kind of demarcation method of City-scale ecology red line.
Background technology
Ecological red line refers to safeguard ecology erroneous zone, prevents the unordered sprawling of land used for urban and rural construction projects, ensures society's warp
Ji sustainable development, on the premise of the Urban Natural ecosystem and reasonable environmental carrying capacity is respected, according to relevant laws, regulation
Regulation, the boundary line for the ecological protection land used scope delimited.It had both included having great nature, Humanistic Value and regional shadow
All kinds of ecological lands and Green Open Space loud, that need to be controlled for the normal harmonious development of guarantee urban economy society,
Also include being used to improve ecology, environmental protection, beautifying city, provided for resident stroll about or have a rest, take precautions against natural calamities, the place of hedging and all kinds of large-scale
Urban green space control range.
Now for demarcation method industry not unification, the detailed standard and method, but division mostly of ecological red line
Method based on to study the evaluation such as area's ecosystem service importance and sensitiveness result, in conjunction with specific on-the-spot investigation etc.
Some arrange numerous and diverse program, just draw and define a set of fine complete ecological protection red line area.The advantages of such method is to consider
Information is abundant, and division is more specific, objective.
But also there are many weak points：1. during the analysis to the result of Assessment of ecosystem service importance,
It was found that the distribution in the high region of ecosystem service importance is at random, low with other ecosystem service importances
Region mix be distributed in surrounding city, and it is just important for ecosystems services specifically can not to mark off certain panel region with lines
The high region of property, because the steps such as the collection of its data, extraction, on-the-spot investigation, comprehensive analysis take time and effort, for a panel region
The division of ecological red line, generally require time several months to several years, so the result often no longer effective property of its division, for point
Analyse macroscopical direction of influence and prediction and planning future urban development of the present situation of current city development to the ecosystem often
Meaning can be lost；2. simultaneously, the particularly important region of ecosystems services itself and general important region, are in many places
Weave in distribution at random, in some existing division methods, many not science, infeasible division can be run into now
As its division result is necessarily unable to the high region of the particularly important area distribution concentration degree of actual response ecosystems services at which
In；3. because the result of its division tends to presentation, in for existing ecological red line division methods, emphasize to detail area
The strict assurance of domain division, process is numerous and diverse, overall division effect presentation visualization is low, the distribution at random of ecological protection red line area
In surrounding city, therefore what kind of situation is its position present situation relation between down town of finding out for being not easy science be, institute
With also inapplicable analysis and judgement with for city overall dimension Ecological safety pattern etc..
The content of the invention
It is an object of the invention to provide a kind of demarcation method of City-scale ecology red line to solve the above problems.
To achieve the above object, the technical solution adopted by the present invention is：A kind of demarcation method of City-scale ecology red line,
Comprise the following steps：
S1, urban area to be delimited is chosen as research area；
S2, evaluation is made to the ecosystem service importance in the range of selected research area, and generate and study area respectively etc.
The distribution map in level ecosystem service importance region；
S3, it is determined that the Urban Land distribution center in research area；
S4, distribution map is divided into using Urban Land distribution center as the center of circle, the multiple circle ring areas being arranged successively, calculated
The area accounting in the particularly important region of ecosystems services in the range of each annulus surrounds；
S5, the circle ring area of ecosystem service importance high level is determined according to step S4 area accounting, based on these
Circle ring area delimit corresponding ecological protection red line.
Further, the step S4 includes：
S41, using Urban Land distribution center as the center of circle, circle is drawn with different radii R, forms buffering area figure layer；
S42, by buffering area figure layer and the distribution map in the step S2 research each grade ecosystem service importance region in area
Superposition, the area in the particularly important region of ecosystems services in the range of each annulus of calculating buffering area figure layer surrounds respectively
Accounting.
Further, the step S5 includes：
S51, by the area accounting and step S4 in the particularly important region of ecosystems services in the range of whole research area
The area accounting in the particularly important region of ecosystems services is fabricated to pie chart and shown in the range of each annulus surrounds, will be each
The area accounting pie chart in the particularly important region of ecosystems services is according to away from cities and towns distribution geography in the range of annulus surrounds
The ascending sequence of distance of the heart, then the area accounting pie chart in the particularly important region of ecosystems services in whole research area is pressed
It is sequentially inserted into wherein according to particularly important region accounting numerical values recited；
S52, determine that the particularly important region area accounting value of ecosystems services is more than ecosystem in the range of whole research area
System services the circle ring area of the area accounting value in particularly important region, and it is red to delimit corresponding ecological protection based on these circle ring areas
Line.
Further, in the step S51, then the face by the particularly important region of ecosystems services in whole research area
Product accounting pie chart is sequentially inserted into specific method therein according to particularly important region accounting numerical values recited and is：The position cake after insertion
The particularly important region accounting that the accounting in the particularly important region in figure should be more than or equal in an above pie chart, also simultaneously
Should be less than or equal to particularly important in the position pie chart after the particularly important region accounting in latter one pie chart, or insertion
The particularly important region accounting that the accounting in region should be less than or equal in an above pie chart, while should also be more than or equal to below
Particularly important region accounting in one pie chart.
Further, in the step S51, then the face by the particularly important region of ecosystems services in whole research area
Product accounting pie chart is sequentially inserted into specific method therein according to particularly important region accounting numerical values recited and is：If occur simultaneously before
The equal situation of particularly important accounting in latter two pie chart, then the region accounting of high-importance is contrasted on this basis, then
Judge the position that should be inserted, and so on.
Further, in the step S2, the content of evaluation is certain single Assessment of ecosystem service importance, or
For ecosystem integrated service Assessment of Important.
Further, in the step S2, ecosystem service importance includes general important, more important, medium heavy
Will, high-importance and particularly important.
Further, in the step S3, using GIS software by the Urban Land studied in area with grid
The mode of figure extracts, then chooses the vector point diagram for being centrally generated Urban Land distribution of each grid, then using middle position
The Algorithm for Solving at number center goes out the center that Urban Land is distributed in survey region.
Further, in the step S4, the ring width of all circles is equal, and the big radius of circle of maximum annulus is used equal to cities and towns
The distance between ground distribution center and farthest research area border.
The advantageous effects of the present invention:
The invention provides a kind of science, simplify, timesaving, simplicity, demarcation method that visualization is high, with
Radiated centered on city to city suburbs, by the region that surrounding city should be laid special stress on protecting with simple, easy to identify, regular annulus
Shape regional assignment, focus on the assurance to global regularity, be not limited to the division of details, can intuitively reflect from entirety
The air line distance for going out the region distance down town of the particularly important region integrated distribution of a surrounding city ecosystems services has
How much, the current situation of urban land can be synthetically analyzed with dividing in the particularly important set of regions of surrounding city ecosystems services
The position relationship in the region of cloth, so as to provide certainly technical support for macroscopical direction of next step decision-making urban development, can be
Following development plan in city provides rational direction guiding, industrial pattern is oriented to, and can promote the rational conversion of urban development.
Brief description of the drawings
Fig. 1 is the method flow diagram of the embodiment of the present invention；
Fig. 2 is the distribution map in each grade ecosystem service importance region in Zhangzhou City of the embodiment of the present invention；
Fig. 3 is accounting figure of the ecosystem service importance area in whole region of the embodiment of the present invention；
Fig. 4 is the center figure of Zhangzhou City's Urban Land distribution of the embodiment of the present invention；
Fig. 5 is point of the buffering area figure layer with each grade ecosystem service importance region in Zhangzhou City of the embodiment of the present invention
Butut stacking chart；
Fig. 6 a are the figure of the regularity of distribution one of the ecosystems services high level region area accounting of the embodiment of the present invention；
Fig. 6 b are the figure of the regularity of distribution two of the ecosystems services high level region area accounting of the embodiment of the present invention；
The figure of the regularity of distribution three of the ecosystems services high level region area accounting of Fig. 6 c embodiment of the present invention；
Fig. 7 is the accounting pie chart arrangement figure of the embodiment of the present invention；
Fig. 8 is the accumulation regions figure of the ecosystem service importance high level of the embodiment of the present invention；
Fig. 9 is macroscopical ecological protection red line area of the Zhangzhou City of the embodiment of the present invention
Embodiment
In conjunction with the drawings and specific embodiments, the present invention is further described.
Before the present invention is further described, first several concepts are explained.
1. ecosystems services (English：Ecosystem services), refer to resource of the human survival required for development
After all natural ecosystems are all derived from.Ecosystems services refer generally to natural ecosystems and its institute's species and ecology
The condition and process for the maintenance human survival that process is formed.Natural ecosystems not only can directly provide for our existence
Various raw materials or product (food, water, oxygen, timber, fiber etc.), and in large scale have regulate the climate, purifying contaminated,
Water conservation, conserve water and soil, check winds and fix drifting sand, mitigating the functions such as disaster, protection bio-diversity, and then the existence for the mankind and hair
Exhibition provides good ecological environment.Human survival all ecosystem products contributive with quality of life and service are referred to as
Ecosystems services.
2. the evaluation content of ecological service function significance evaluation includes：(1) bio-diversity conservation；(2) water conservation
Regulated and stored with the hydrology；(3) soil conservation；(4) desertification controls；(5) nutriment is kept；(6) littoral zone safeguard function.
It is respectively particularly important, high-importance, medium important, more important 3. ecological service function significance is divided into 5 grades
With it is general important.Ecological service function significance evaluation is to mark off difference according to its importance to each single item Ecosystem Service
Rank, its spatial distribution is specified, is then integrated on region, specify the service function of all kinds of ecosystems in region and its right
The effect of Region Sustainable Development and importance, and be classified according to its importance.
Below in conjunction with specific embodiment, the present invention is described in detail, and step sequence number below is for the side of explanation
Just, the sequencing of step might not be represented.
As shown in figure 1, a kind of demarcation method of City-scale ecology red line, comprises the following steps：
S1, urban area to be delimited is chosen as research area.
Administrative region as chosen some city, or the overall administrative region of some group of cities is as whole research
Area.In this specific embodiment, the administrative region of Zhangzhou City of Fujian Province is chosen as whole research area.
S2, evaluation is made to the ecosystem service importance in the range of selected research area, and generate and study area respectively etc.
The distribution map in level ecosystem service importance region.
Specifically, the content of evaluation can be certain single Assessment of ecosystem service importance, or ecology
System integrated service Assessment of Important, using the Assessment of Important of ecosystem integrated service in the present embodiment.Evaluation side
Method can use NPP quantitative targets evaluation method or other rational evaluation methods, as RUE, Albedo quantitative target are evaluated
Method etc..The present embodiment marks off ecosystems services one in the range of the research area using NPP quantitative target evaluation methods
As important, more important, medium important, high-importance and particularly important region, one Zhangzhou City of generation each grade ecology
The distribution map in system service importance region, as shown in Figure 2.
The area for calculating the particularly important region of ecosystems services in the range of research area of Zhangzhou City accounts for whole research area's area
Ratio, that is, the accounting average value of whole survey region, as shown in Figure 3.
S3, it is determined that the Urban Land distribution center in research area.
Specifically, the Urban Land studied in area is extracted in a manner of grid map using GIS software
Come, the vector point diagram for being centrally generated Urban Land distribution that related tool chooses each grid is reused, followed by ARCGIS
Spatial statisticses instrument in software (can certainly use other softwares) is solved in survey region in Urban Land distribution
Heart position, this point just represent the geometric center of whole research area cities and towns distribution, as shown in Figure 4.In this specific embodiment, use
The Algorithm for Solving of median center goes out the center that Urban Land is distributed in survey region, in order to reduces exceptional value
Influence to center, so as to ensure the accuracy and reliability of center calculating.The algorithm of median center can join
According to prior art, it is that those skilled in the art can realize easily, no longer describes in detail.
S4, distribution map is divided into using Urban Land distribution center as the center of circle, the multiple circle ring areas being arranged successively, such as schemed
Shown in 5, the area accounting in the particularly important region of ecosystems services in the range of each annulus surrounds is calculated.
Specifically, including step S41, using Urban Land distribution center as the center of circle, circle is drawn with different radii R, formed slow
Rush area's figure layer.In this specific embodiment, using Urban Land central point as the center of circle in the GIS softwares such as ARCGIS, with
R=10km/20km/30km/40km... until the distance between farthest research area border of distance center point is that radius is drawn respectively
Circle establishes buffering area.In this specific embodiment, the ring width of each annulus of buffering area is equal, in other embodiments, buffering
The ring width of each annulus in area can also be unequal.Radius R size can be selected as the case may be, and this is this area
What technical staff can realize easily, no longer describe in detail.
S42, it is using ARCGIS softwares that buffering area figure layer and the step S2 each grade ecosystems services in research area is important
Property region distribution map superposition, as shown in Figure 5.Certainly, in other embodiments, can also be directly each in step S2 research area
Buffering area is drawn on the distribution map in grade ecosystem service importance region.
The particularly important region of ecosystems services in the range of each annulus of calculating buffering area figure layer surrounds respectively
Area accounting.
S5, the circle ring area of ecosystem service importance high level is determined according to step S4 area accounting, based on these
Circle ring area delimit corresponding ecological protection red line.
Specifically, including step S51, the area in the particularly important region of ecosystems services in the range of whole research area is accounted for
Area accounting than the particularly important region of ecosystems services in the range of being surrounded with each annulus in step S4 is fabricated to
Pie chart shows (the area accounting pie chart that Fig. 3 show the particularly important region of ecosystems services in the range of whole research area), by
The geographic center of cities and towns distribution establishes a reference axis to the farthest border in research area, raw in the range of each annulus is surrounded
The area accounting pie chart in the particularly important region of state system service is lined up according to the distance that geographic center is distributed away from cities and towns is ascending
One row, as shown in Figure 7.We may obtain the distribution rule of several possible ecosystems services high level region area accountings
Rule：
The first rule, as shown in Figure 6 a, can be intuitively found out very much from down town to the mistake away from city
Cheng Zhong, the particularly important region area accounting of ecosystems services shows the trend constantly risen in each annulus.
Second of rule, it is that scope ecosystems services are extremely in some or several annular sections as shown in Figure 6 b
The interior pie chart accounting value of important area is more than the accounting value in whole research area, and close to down town and away from down town
Annular section particularly important region accounting value both less than whole research area again particularly important region accounting value.
The third rule, it is the middle particularly important region accounting value occurred in multiple annular sections as fig. 6 c
More than the particularly important region accounting value in whole research area.
The regularity of distribution that the ecosystems services high level region area accounting of Zhangzhou City is may determine that by Fig. 7 is second
Rule.
Again by the area accounting pie chart in the particularly important region of ecosystems services in whole research area according to particularly important area
Domain accounting numerical values recited is sequentially inserted into reference axis, specifically, the principle of insertion reference axis is：After insertion in the position pie chart
The particularly important region accounting value that the accounting value in particularly important region should be more than or equal in an above pie chart, while should also
It is particularly important in the position pie chart after the particularly important region accounting value being less than or equal in latter one pie chart, or insertion
The particularly important region accounting value that the accounting value in region should be less than or equal in an above pie chart, while should also be more than or equal to
Particularly important region accounting value in latter one pie chart, as shown in Figure 7.If occur simultaneously in former and later two pie charts extremely
The equal situation of important accounting, then the region accounting of high-importance is contrasted on this basis, the method according still further to more than judges
The position that should be inserted, and so on.
S52, it is particularly important to determine that the particularly important region area accounting value of ecosystems services is more than city holistic approach area
The circle ring area of region area accounting value, corresponding ecological protection red line delimited based on these circle ring areas.
Specifically, pass through above step, it is possible in the specific circle ring area for intuitively judging ZhangZhou surrounding city which
The accounting in the ecosystem service importance high level region in a little annulus is more than the particularly important area surface in whole urban study area
Product accounting value (the radius R in such as Fig. 7 is 20-30km, 30-40km and 40-50km three annulus, i.e., the three, the four, the 5th
Annulus), these circle ring areas are the accumulation regions in ecosystem service importance high level (particularly important region).So far, we
The accumulation regions of Zhangzhou City's ecosystem service importance high level are determined, as shown in Figure 8.Fig. 8 is superimposed with urban border scope
Afterwards, the red line area of Zhangzhou City's macroscopic view ecological protection finally delimited, as shown in Figure 9.
When this red line region is crossed in the development in city, just extremely easily cause to ecosystem service importance high level region
Influence and destruction.
Certainly, in other embodiments, ecosystems services are extremely heavy in the range of each annulus can also be surrounded
Area accounting of the area accounting in region directly with the particularly important region of ecosystems services in the range of whole research area is wanted to carry out
Contrast, extracting the circle ring area bigger than the area accounting in the particularly important region of ecosystems services in the range of whole research area is
The accumulation regions of ecosystem service importance high level (particularly important region).
We be to provide a kind of science, simplify, timesaving, simplicity, demarcation method that visualization is high, with city
Radiated centered on city to city suburbs, by the region that surrounding city should be laid special stress on protecting with simple, easy to identify, regular annular
Regional assignment, such demarcation method focus on the assurance to global regularity, are not limited to the division of details, can go out from entirety
Hair, intuitively reflect the region distance down town of the particularly important region integrated distribution of a surrounding city ecosystems services
Air line distance how many, it is extremely heavy with surrounding city ecosystems services can synthetically to analyze the current situation of urban land
The position relationship in the region of region integrated distribution is wanted, so as to provide certainly skill for macroscopical direction of next step decision-making urban development
Art is supported.
The present invention can be solved after ecosystem service assessment is carried out to a certain urban study area, due to obtained ecology
The actual distribution situation in each importance information region of system service have it is at random unordered and the characteristics of be interweaved, it is difficult to directly
The problem of being delimited applied to specific ecological red line in work.Can be directly perceived, quantitative show in the surrounding city ecosystem
The rule of particularly important area distribution is serviced, can quickly differentiate urban land present situation and surrounding city ecosystems services pole
Position relationship between important area, meanwhile, it is capable to preferably serving urban planning, for related government planning portion
Door, policymaker provide quick, practical urban ecology red line division methods and the decision-making foundation of urban development planning.
Although specifically showing and describing the present invention with reference to preferred embodiment, those skilled in the art should be bright
In vain, do not departing from the spirit and scope of the present invention that appended claims are limited, in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (9)
1. a kind of demarcation method of City-scale ecology red line, it is characterised in that comprise the following steps：
S1, urban area to be delimited is chosen as research area；
S2, evaluation is made to the ecosystem service importance in the range of selected research area, and generate each grade life in research area
The distribution map in state system service importance region；
S3, it is determined that the Urban Land distribution center in research area；
S4, distribution map is divided into using Urban Land distribution center as the center of circle, the multiple circle ring areas being arranged successively, calculated each
The area accounting in the particularly important region of ecosystems services in the range of annulus surrounds；
S5, the circle ring area of ecosystem service importance high level is determined according to step S4 area accounting, based on these annulus
The corresponding ecological protection red line of regional assignment.
2. the demarcation method of City-scale ecology red line according to claim 1, it is characterised in that the step S4 bags
Include：
S41, using Urban Land distribution center as the center of circle, circle is drawn with different radii R, forms buffering area figure layer；
S42, buffering area figure layer is superimposed with the distribution map in the step S2 each grade ecosystem service importance region in research area,
The area accounting in the particularly important region of ecosystems services in the range of each annulus of calculating buffering area figure layer surrounds respectively.
3. the demarcation method of City-scale ecology red line according to claim 1, it is characterised in that the step S5 bags
Include：
S51, will in the range of whole research area the area accounting in the particularly important region of ecosystems services with it is each in step S4
The area accounting in the particularly important region of ecosystems services is fabricated to pie chart and shown in the range of annulus surrounds, by each annulus
The area accounting pie chart in the particularly important region of ecosystems services is distributed geographic center according to away from cities and towns in the range of surrounding
Apart from ascending sequence, then by the area accounting pie chart in the particularly important region of ecosystems services in whole research area according to pole
It is sequentially inserted into wherein for important area accounting numerical values recited；
S52, determine that the particularly important region area accounting value of ecosystems services is more than ecosystem clothes in the range of whole research area
Be engaged in particularly important region area accounting value circle ring area, delimit corresponding ecological protection red line based on these circle ring areas.
4. the demarcation method of City-scale ecology red line according to claim 3, it is characterised in that in the step S51,
Again by the area accounting pie chart in the particularly important region of ecosystems services in whole research area according to particularly important region accounting number
The specific method that value size order is inserted is：The accounting in the particularly important region after insertion in the position pie chart should be big
Particularly important region accounting in equal to an above pie chart, while should also be less than or equal in latter one pie chart extremely
The accounting in the particularly important region after important area accounting, or insertion in the position pie chart should be less than or equal to an above cake
Particularly important region accounting in figure, while the particularly important region accounting that should be also more than or equal in latter one pie chart.
5. the demarcation method of City-scale ecology red line according to claim 4, it is characterised in that in the step S51,
Again by the area accounting pie chart in the particularly important region of ecosystems services in whole research area according to particularly important region accounting number
The specific method that value size order is inserted is：If the particularly important accounting occurred simultaneously in former and later two pie charts is equal
Situation, then contrast the region accounting of high-importance on this basis, then judge the position that should be inserted, and so on.
6. the demarcation method of City-scale ecology red line according to claim 1, it is characterised in that in the step S2,
The content of evaluation is certain single Assessment of ecosystem service importance, or is ecosystem integrated service Assessment of Important.
7. the demarcation method of City-scale ecology red line according to claim 1, it is characterised in that in the step S2,
Ecosystem service importance includes general important, more important, medium important, high-importance and particularly important.
8. the demarcation method of City-scale ecology red line according to claim 1, it is characterised in that in the step S3,
The Urban Land studied in area is extracted in a manner of grid map using GIS software, then chooses each grid
Be centrally generated Urban Land distribution vector point diagram, cities and towns in survey region are then gone out using the Algorithm for Solving of median center
The center of land used distribution.
9. the demarcation method of City-scale ecology red line according to claim 1 or 2, it is characterised in that the step S4
In, the ring width of all circles is equal, and the big radius of circle of maximum annulus is equal to Urban Land distribution center and farthest research area side
The distance between boundary.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109886593A (en) * | 2019-03-01 | 2019-06-14 | 天津城建大学 | A kind of ecological source based on Thiessen polygon ground optimization method |
| CN112037107A (en) * | 2020-08-19 | 2020-12-04 | 生态环境部卫星环境应用中心 | Method for quantifying boundary overlapping features of natural protected area |
| CN114814136A (en) * | 2022-04-14 | 2022-07-29 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for defining urban river network water bloom degree by RUE and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109886593A (en) * | 2019-03-01 | 2019-06-14 | 天津城建大学 | A kind of ecological source based on Thiessen polygon ground optimization method |
| CN112037107A (en) * | 2020-08-19 | 2020-12-04 | 生态环境部卫星环境应用中心 | Method for quantifying boundary overlapping features of natural protected area |
| CN114814136A (en) * | 2022-04-14 | 2022-07-29 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for defining urban river network water bloom degree by RUE and application thereof |
| CN114814136B (en) * | 2022-04-14 | 2024-05-28 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for defining urban river network water bloom degree by RUE and application thereof |
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