CN105184006B - A kind of the construction land selection method and device in Gentle hillside area - Google Patents
A kind of the construction land selection method and device in Gentle hillside area Download PDFInfo
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- CN105184006B CN105184006B CN201510607424.9A CN201510607424A CN105184006B CN 105184006 B CN105184006 B CN 105184006B CN 201510607424 A CN201510607424 A CN 201510607424A CN 105184006 B CN105184006 B CN 105184006B
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Abstract
The invention discloses a kind of construction land selection method in Gentle hillside area, including：Analysis calculating is carried out to the digital complex demodulation in Gentle hillside area, obtains the land used space distribution information in the Gentle hillside area；According to the land used space distribution information, the suitable construction land region obtained in the Gentle hillside area is calculated；The Gentle hillside area is divided according to elevation range, and the ratio in the suitable construction land region in every sub-regions after computation partition respectively；The ratio for choosing the suitable construction land region is more than construction land region of the subregion of preset first threshold as Gentle hillside area.Correspondingly, the construction land selection device the invention also discloses a kind of Gentle hillside area.Using the embodiment of the present invention, the construction land in Gentle hillside area rationally can be accurately selected.
Description
Technical field
The present invention relates to planning and the construction land selecting party in construction technique field more particularly to a kind of Gentle hillside area
Method and device.
Background technology
With the quickly propelling of urbanization process, the continuous expansion of city size, city existing land resource is increasingly in short supply,
Gentle hillside area is increasingly becoming the important carrying of urban construction.
At present, construction land analysis in Gentle hillside area is noted generally with GIS (GIS-Geographic Information System) analyses for technological means
The evaluation of the eco-environmental sensitivity analysis and land used suitability of weight county (city) domain space scale, purport are built from macroscopically guiding city development
Set direction.For example, from ecological point, integrated use GIS spatial analytical methods, analytic hierarchy process (AHP) and entropy assessment are low by building
Mound gentle slope construction land ecological suitability evaluation index system, by all kinds of lands used in Chibi City be divided into height it is suitable, moderate is suitable,
Substantially it is suitable, be relatively not suitable for and five types such as be not suitable for, provide science for Chibi City Gentle hillside resource rational exploitation and utilization
Foundation.But this method generally evaluates land used in the development of county (city) domain level, space scale is excessive, mainly rationally
Determine urban construction direction, depth is difficult to directly instruct the exploration project in specific area.
Invention content
The embodiment of the present invention proposes a kind of the construction land selection method and device in Gentle hillside area, can be rationally accurate
Select the construction land in Gentle hillside area.
The embodiment of the present invention provides a kind of construction land selection method in Gentle hillside area, including：
Analysis calculating is carried out to the digital complex demodulation in Gentle hillside area, obtains the use in the Gentle hillside area
Ground space distribution information；
According to the land used space distribution information, the suitable area for the construction obtained in the Gentle hillside area is calculated
Domain；
The Gentle hillside area is divided according to elevation range, and respectively in every sub-regions after computation partition
Suitable construction land region ratio；
The ratio for choosing the suitable construction land region is more than the subregion of preset first threshold as the low mound
The construction land region in gentle slope area.
Further, the region where the Gentle hillside area is made of grid, the land used space distribution information packet
Include elevation information, grade information, aspect information and the reachability information of each grid；
It is described according to the land used spatial distribution, calculate the suitable area for the construction obtained in the Gentle hillside area
Domain specifically includes：
According to the power of the preset elevation information, the grade information, the aspect information and the reachability information
Weight values calculate the construction value of each grid；
Choose the construction value more than the grid of preset second threshold form in the Gentle hillside area suitable for building
If land used region.
Further, it is described to divide in the Gentle hillside area according to elevation range, and respectively after computation partition
Every sub-regions in suitable construction land region ratio, specifically include：
The Gentle hillside area according to elevation range is divided, forms the grid in the range of identical elevation
One sub-regions；
The number of the grid in the suitable construction land region is formed in calculating respectively per sub-regions with forming subregion
Grid number ratio, obtain the ratio per the suitable construction land region in sub-regions.
Preferably, the first threshold is 40%.
Correspondingly, the present invention also provides a kind of construction land selection device in Gentle hillside area, including：
Computing module is analyzed, analysis calculating is carried out for the digital complex demodulation to Gentle hillside area, described in acquisition
The land used space distribution information in Gentle hillside area；
Acquisition module, for according to the land used space distribution information, calculating and obtaining fitting in the Gentle hillside area
Suitable construction land region；
Ratio computing module for the Gentle hillside area to be divided according to elevation range, and calculates draw respectively
The ratio in the suitable construction land region in every sub-regions after point；And
Module is chosen, for choosing the subregion that the ratio in the suitable construction land region is more than preset first threshold
Construction land region as Gentle hillside area.
Further, the region where the Gentle hillside area is made of grid, the land used space distribution information packet
Include elevation information, grade information, aspect information and the reachability information of each grid；
The acquisition module specifically includes：
Construction value computing unit, for according to the preset elevation information, the grade information, the aspect information and
The weighted value of the reachability information calculates the construction value of each grid；And
Region selection unit is delayed for choosing the construction value more than the grid composition low mound of preset second threshold
Suitable construction land region in the area of hillside fields.
Further, the ratio computing module specifically includes：
Division unit for the Gentle hillside area to be divided according to elevation range, makes in identical elevation model
Grid in enclosing forms a sub-regions；And
Ratio computing unit, for calculating the grid that the suitable construction land region is formed in every sub-regions respectively
The ratio of the number of grid of the number with forming subregion, the ratio in the suitable construction land region in obtaining per sub-regions.
Preferably, the first threshold is 40%.
Implement the embodiment of the present invention, have the advantages that：
The construction land selection method and device in Gentle hillside area provided in an embodiment of the present invention, can be to Gentle hillside
Area is divided according to elevation range, and calculates the ratio of the suitable construction land in every sub-regions, so as to according to ratio
It selects the construction land region in Gentle hillside area, improves in selection Gentle hillside area the reasonability of construction land and accurate
Property；Elevation range is divided in advance, and the region where Gentle hillside area is divided, and calculate per sub-regions according to elevation range
In suitable for construction land region ratio, selection percentage more than 40% subregion as construction land region, improve selection
Economic rationality.
Description of the drawings
Fig. 1 is the flow signal of one embodiment of the construction land selection method in Gentle hillside area provided by the invention
Figure；
Fig. 2 is the structural representation of one embodiment of the construction land selection device in Gentle hillside area provided by the invention
Figure.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
It is the stream of one embodiment of the construction land selection method in Gentle hillside area provided by the invention referring to Fig. 1
Journey schematic diagram, including：
S1, analysis calculating is carried out to the digital complex demodulation in Gentle hillside area, obtains the Gentle hillside area
Land used space distribution information；
S2, according to the land used space distribution information, calculate the suitable construction land obtained in the Gentle hillside area
Region；
S3, the Gentle hillside area is divided according to elevation range, and each sub-district after computation partition respectively
The ratio in the suitable construction land region in domain；
S4, the subregion of the ratio in suitable the construction land region more than preset first threshold is chosen as described low
The construction land region in mound gentle slope area.
It should be noted that using in ArcGIS software space analysis tool casees surface analysis, buffer finish blasting, grid meter
Calculation tool carries out analysis calculating to the DEM (Digital Elevation Model, digital elevation model) in Gentle hillside area,
So as to can determine different elevations, different gradient, different slope, different accessibility land used spatial distribution.And then according to air-ground
Between distributed intelligence calculate suitable for construction land region, so as to be suitable for construction land by Gentle hillside regional classification and be not suitable for
Construction land.According to pre-set elevation range, Gentle hillside area is divided, obtains the subregion of division, is calculated
Go out in every sub-regions and account for the ratio of the subregion suitable for construction land region, and obtain the son that ratio is more than preset first threshold value
Region is the construction land region in Gentle hillside area, so as to improve the reasonability and accuracy that select construction land.
Further, the region where the Gentle hillside area is made of grid, the land used space distribution information packet
Include elevation information, grade information, aspect information and the reachability information of each grid；
It is described according to the land used spatial distribution, calculate the suitable area for the construction obtained in the Gentle hillside area
Domain specifically includes：
According to the power of the preset elevation information, the grade information, the aspect information and the reachability information
Weight values calculate the construction value of each grid；
Choose the construction value more than the grid of preset second threshold form in the Gentle hillside area suitable for building
If land used region.
It should be noted that the weight of elevation information, grade information, aspect information and reachability information can be set in advance
Value, and different elevation informations, different grade informations, different aspect information and different reachability informations are set different
Score value.For example, the weight of setting elevation is 0.15, the score value that elevation is in below 100m is 9, and elevation is in 100m to 150m
Between score value for 7 etc., as shown in table 1.
Table 1
The score value and weight of each factor in each grid are obtained, using ArcGIS raster symbol-base device tools by each factor
Molecule and multiplied by weight, then the construction value of each grid can be calculated to the summation of the value of multiplication.For example, the height of some grid
Journey is in 100m between 150m, and the gradient is 10% hereinafter, slope aspect is south, and accessibility is in 500m between 1000m, then basis
Table 1 can calculate the construction value S=7*0.15+9*0.40+9*0.15+3*0.30 of the grid.Obtaining building for each grid
If after value, using ArcGIS reclassification tools, all grids are divided by two classes using nature discontinuous point staging, value will be built
Grid more than or equal to second threshold is divided into suitable for construction land region, and the grid that construction value is less than to second threshold is divided into not
Suitable for construction land.
Further, it is described to divide in the Gentle hillside area according to elevation range, and respectively after computation partition
Every sub-regions in suitable construction land region ratio, specifically include：
The Gentle hillside area according to elevation range is divided, forms the grid in the range of identical elevation
One sub-regions；
The number of the grid in the suitable construction land region is formed in calculating respectively per sub-regions with forming subregion
Grid number ratio, obtain the ratio per the suitable construction land region in sub-regions.
It should be noted that it needs to concentrate competence exertion effectiveness in blocks, and the general edge of city development in view of construction land
Urban road both sides gradually to boost along contour, " layer is desk-top ", with reference to residential estate exploitation it is practical (i.e. every layer into
Depth is 10 meters or so), elevation range is divided for interval with 10 meters since 100 meters, i.e., elevation range, which is divided into, is less than
100m, 100 meters to 110 meters, 110 meters to 120 meters, 120 meters to 130 meters etc..Gentle hillside area is carried out according to elevation range
It divides, obtains the subregion in the range of identical elevation, and then calculate in every sub-regions and account for this suitable for construction land region
The ratio of subregion.For example, in some Gentle hillside area, suitable for area for the construction in subregion of the elevation range less than 100m
Domain proportion is 88%, is compared shared by suitable construction land region in the subregion that elevation range is between 100 meters to 110 meters
Example is 65%, and it is 48% that elevation range, which is in the subregion between 110 meters to 120 meters suitable for construction land region proportion,
Deng.
Preferably, the first threshold is 40%.
In every sub-regions are calculated after the ratio in suitable construction land region, the subregion that ratio is more than 40% is chosen
It can be used as the construction land region in Gentle hillside area.For example, in above-mentioned Gentle hillside area, ratio is more than 40%
Elevation ranging from be less than 100m, 100 meters to 110 meters, 110 meters to 120 meters, 120 meters to 130 meters, 130 meters to 140 meters, 140 meters
To 150 meters of subregion, so as to select construction land region of region of the elevation less than 150 meters as Gentle hillside area.
The construction land selection method in Gentle hillside area provided in an embodiment of the present invention, can press Gentle hillside area
It is divided according to elevation range, and calculates the ratio of the suitable construction land in every sub-regions, so as to be selected according to ratio
The reasonability and accuracy of construction land in selection Gentle hillside area are improved in the construction land region in Gentle hillside area；In advance
Elevation range is first divided, the region where Gentle hillside area is divided according to elevation range, and fitted in calculating per sub-regions
The ratio in suitable construction land region, subregion of the selection percentage more than 40% improve the economy of selection as construction land region
Reasonability.
Correspondingly, the present invention also provides a kind of construction land selection device in Gentle hillside area, above-mentioned reality can be realized
Apply all flows of the construction land selection method in the Gentle hillside area in example.
It is the knot of one embodiment of the construction land selection device in Gentle hillside area provided by the invention referring to Fig. 2
Structure schematic diagram, including：
Computing module 1 is analyzed, analysis calculating is carried out for the digital complex demodulation to Gentle hillside area, obtains institute
State the land used space distribution information in Gentle hillside area；
Acquisition module 2, for according to the land used space distribution information, calculating and obtaining fitting in the Gentle hillside area
Suitable construction land region；
Ratio computing module 3 for the Gentle hillside area to be divided according to elevation range, and calculates draw respectively
The ratio in the suitable construction land region in every sub-regions after point；And
Module 4 is chosen, for choosing the sub-district that the ratio in the suitable construction land region is more than preset first threshold
Construction land region of the domain as Gentle hillside area.
Further, the region where the Gentle hillside area is made of grid, the land used space distribution information packet
Include elevation information, grade information, aspect information and the reachability information of each grid；
The acquisition module specifically includes：
Construction value computing unit, for according to the preset elevation information, the grade information, the aspect information and
The weighted value of the reachability information calculates the construction value of each grid；And
Region selection unit is delayed for choosing the construction value more than the grid composition low mound of preset second threshold
Suitable construction land region in the area of hillside fields.
Further, the ratio computing module specifically includes：
Division unit for the Gentle hillside area to be divided according to elevation range, makes in identical elevation model
Grid in enclosing forms a sub-regions；And
Ratio computing unit, for calculating the grid that the suitable construction land region is formed in every sub-regions respectively
The ratio of the number of grid of the number with forming subregion, the ratio in the suitable construction land region in obtaining per sub-regions.
Preferably, the first threshold is 40%.
The construction land selection device in Gentle hillside area provided in an embodiment of the present invention, can press Gentle hillside area
It is divided according to elevation range, and calculates the ratio of the suitable construction land in every sub-regions, so as to be selected according to ratio
The reasonability and accuracy of construction land in selection Gentle hillside area are improved in the construction land region in Gentle hillside area；In advance
Elevation range is first divided, the region where Gentle hillside area is divided according to elevation range, and fitted in calculating per sub-regions
The ratio in suitable construction land region, subregion of the selection percentage more than 40% improve the economy of selection as construction land region
Reasonability.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (6)
1. a kind of construction land selection method in Gentle hillside area, which is characterized in that including：
Analysis calculating is carried out to the digital complex demodulation in Gentle hillside area, the use for obtaining the Gentle hillside area is air-ground
Between distributed intelligence；Wherein, the region where the Gentle hillside area is made of grid；
According to the land used space distribution information, the suitable construction land region obtained in the Gentle hillside area is calculated；
The Gentle hillside area is divided according to elevation range, and suitable in every sub-regions after computation partition respectively
The ratio in suitable construction land region；Specifically, the Gentle hillside area according to elevation range is divided, made in identical
Grid in the range of elevation forms a sub-regions；The suitable construction land region is formed in calculating respectively per sub-regions
The ratio of the number of the grid of the number of grid with forming subregion, suitable construction land region in obtaining per sub-regions
Ratio；Wherein, the elevation range is divided with 10 meters for interval；
The ratio for choosing the suitable construction land region is more than the subregion of preset first threshold as the Gentle hillside
The construction land region in area.
2. the construction land selection method in Gentle hillside area as described in claim 1, which is characterized in that the land used space
Distributed intelligence includes elevation information, grade information, aspect information and the reachability information of each grid；
It is described according to the land used spatial distribution, calculate the suitable construction land region obtained in the Gentle hillside area, tool
Body includes：
According to the weighted value of the preset elevation information, the grade information, the aspect information and the reachability information,
Calculate the construction value of each grid；
The suitable construction that the construction value is formed more than the grid of preset second threshold in the Gentle hillside area is chosen to use
Ground region.
3. such as the construction land selection method in claim 1 to 2 any one of them Gentle hillside area, which is characterized in that institute
It is 40% to state first threshold.
4. a kind of construction land selection device in Gentle hillside area, which is characterized in that including：
Computing module is analyzed, analysis calculating is carried out for the digital complex demodulation to Gentle hillside area, obtains the low mound
The land used space distribution information in gentle slope area；Wherein, the region where the Gentle hillside area is made of grid；
Acquisition module, for according to the land used space distribution information, calculate obtain in the Gentle hillside area suitable for building
If land used region；
Ratio computing module, for the Gentle hillside area to be divided according to elevation range, and respectively after computation partition
Every sub-regions in suitable construction land region ratio；Specifically, including division unit, for by the Gentle hillside
Area is divided according to elevation range, and the grid in the range of identical elevation is made to form a sub-regions；Ratio calculates single
Member, for calculating the number for the grid that the suitable construction land region is formed in every sub-regions respectively with forming subregion
The ratio of the number of grid, the ratio in the suitable construction land region in obtaining per sub-regions；Wherein, the elevation range with
10 meters are divided for interval；And
Module is chosen, for choosing the subregion conduct that the ratio in the suitable construction land region is more than preset first threshold
The construction land region in the Gentle hillside area.
5. the construction land selection device in Gentle hillside area as claimed in claim 4, which is characterized in that the land used space
Distributed intelligence includes elevation information, grade information, aspect information and the reachability information of each grid；
The acquisition module specifically includes：
Construction value computing unit, for according to the preset elevation information, the grade information, the aspect information and described
The weighted value of reachability information calculates the construction value of each grid；And
Region selection unit, for choosing the construction value more than the grid of preset second threshold with forming the Gentle hillside
Suitable construction land region in area.
6. such as the construction land selection device in claim 4 to 5 any one of them Gentle hillside area, which is characterized in that institute
It is 40% to state first threshold.
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| CN110188907A (en) * | 2018-02-22 | 2019-08-30 | 重庆师范大学 | A kind of coal mine temporary construction land used is comprehensive to be cultivated and utilized direction again and determines method |
| CN110298519A (en) * | 2018-03-21 | 2019-10-01 | 重庆师范大学 | A kind of Gentle hillside development & construction ecological suitability evaluation method |
| CN108876027B (en) * | 2018-06-06 | 2022-03-29 | 安徽建筑大学 | GIS-based rural residential point centralized residential area site selection and optimization method |
| CN109784225B (en) * | 2018-12-28 | 2020-11-24 | 南京大学 | Geographical space mode identification method based on reachable space |
| CN112711793B (en) * | 2021-03-26 | 2021-07-02 | 中国测绘科学研究院 | Mountain cutting construction identification method and device |
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| Expert systems and GIS: An application of land suitability evaluation;Kalogiroua S 等;《Computers Environment and Urban Systems》;20020531;第26卷(第2-3期);第89-112页 * |
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