Territorial space detailed planning unit delimiting method and system

Abstract

The invention provides a territorial space detailed planning unit demarcation method and a territorial space detailed planning unit demarcation system. Comprising the steps of determining a target area, obtaining corresponding administrative region boundary line data, adjusting an administrative region boundary line based on a function partition determined by upper planning, checking an initial planning unit divided after adjustment, and delimiting a detailed planning unit according to a checking result. The method has the advantages that scientificity is high, detailed planning units are delimited on the basis of clear rules and standards, and subjectivity and randomness of artificial experience are avoided; the method is clear in step and easy to operate, automatic delimiting can be achieved through tools such as GIS software, and efficiency is improved. According to the method, the consistency of delineation results of different regions can be ensured, and the planning management efficiency is improved. The detailed planning unit delimited by the method and the system is clear in boundary and clear in function, and subsequent planning and management are facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of national land space planning, and specifically relates to a method and system for delineating national land space detailed planning units. Background Art

[0002] With the advancement of the compilation and approval of national land space master plans at all levels, the compilation and management reform of detailed plans has become a focus of attention in current planning practices. The delineation of detailed planning units is a fundamental task in the implementation of detailed planning under the new system. Currently, relevant researchers have conducted research on the role of detailed planning units, information management, division principles, and related schemes. From the perspective of promoting the digital transformation of planning, it is necessary to establish a model that links management, economy, ecology, and space based on detailed units and their division, and enhance the management and control capabilities of planning throughout its life cycle, including compilation, implementation, monitoring, and evaluation.

[0003] Existing research has proposed principles and methods for unit delineation, such as determining a reasonable unit size based on the city's functional structure, incorporating 15-minute community living zones, considering the need for planning management and implementation flexibility, coordinating with administrative management, and respecting land ownership. In practice, the delineation of detailed planning units is a coordinated effort based on multiple principles. Different principles often conflict and contradict each other, inevitably involving trade-offs. In this process of weighing and balancing, unit delineation often tends to avoid important issues and lacks comprehensive consideration of various relevant factors, making it difficult to fully realize the role that planning system reform has given it.

[0004] Existing delineation methods or schemes often focus solely on delineation principles and relevant factors to be considered during the delineation process, lacking clear guidance on delineation procedures and quantitative analysis requirements. Furthermore, the delineation methods and findings from various related studies are often specific to a specific time and place, lacking universal applicability.

[0005] For example, CN115062916A discloses a zoning method for identifying key areas of national land space ecological restoration planning based on GIS, in which spatial overlay is performed with the help of GIS software, and the ecological restoration problems and characteristics of natural resource elements are clarified within the determined zoning range. On this basis, the zoning range of the ecological restoration plan is determined, that is, the scheme is limited to the zoning of the ecological restoration plan.

[0006] CN111598314B discloses a park green space planning and layout method based on performance units. Spatial data such as urban street boundaries, planned road networks, and terrain slopes are imported into ArcGIS software, and the data are divided according to the size of the performance units to obtain performance units. The performance units are scored according to multiple quantitative evaluation indicators, and the urban park green space planning divisions are determined based on the scores. That is, this scheme is limited to the planning zoning of park green spaces.

[0007] CN118761646A discloses a method and system for delineating spatial management units based on small watersheds.

[0008] While the aforementioned prior art solutions disclose corresponding spatial unit delineation methods, the related analysis methods lack detailed descriptions of the delineation process and therefore cannot be directly applied to the delineation of detailed planning units. Furthermore, as mentioned above, these prior art solutions are not intended for the delineation of detailed national land space planning units, and neither the delineation methods nor the key parameters for planning units are clearly defined. Therefore, they cannot directly guide the delineation of detailed planning units outside of their study areas. Summary of the Invention

[0009] The present invention is designed to solve the above-mentioned problems and aims to provide an efficient, clear, and universal technical method and corresponding system for delineating detailed land space planning units, thereby providing technical support for the delineation of detailed land space planning units. Specifically, the present invention adopts the following technical solutions:

[0010] The present invention provides a method for delineating detailed planning units of national land space, which has the following technical characteristics: step S1, determining the scope of a target area that needs detailed planning, and obtaining basic geographic information data of the target area; step S2, based on the basic geographic information data, obtaining administrative area boundary data corresponding to the target area; step S3, obtaining functional zoning data determined by the superior planning, adjusting the administrative area boundary data based on the scale of the administrative area, the functional zoning data and predetermined boundary adjustment rules, and obtaining multiple preliminary planning units based on the adjusted administrative area boundary data; step S4, verifying the carrying capacity and service scope of each preliminary planning unit; step S5, delineating detailed planning units based on the calibration results of the preliminary planning units.

[0011] The method for delineating detailed land space planning units provided by the present invention may also have the following technical features: wherein, in step S1, the basic geographic information data includes a topographic map, a remote sensing image, and an administrative division map. In step S2, officially released administrative region boundary vector data of the target area is obtained as the administrative region boundary data.

[0012] The method for delineating detailed land space planning units provided by the present invention may also have such a technical feature, wherein step S3 includes the following sub-steps: step S3-1, determining the scale of the administrative region based on the administrative region boundary in the administrative region boundary data; step S3-2, when the scale of the administrative region is within a predetermined first scale range, superimposing and analyzing the functional zoning boundary data and the administrative region boundary data, and further determining whether the administrative region boundary of each administrative region is consistent with the corresponding functional zoning boundary, and when the determination is yes, obtaining the preliminary planning unit based on the administrative region boundary; step S3 -3, when the judgment result of step S3-2 is no, the administrative area boundary is adjusted based on the functional zoning boundary to form a new administrative area, and the process returns to step S3-1; step S3-4, when the scale of the administrative area is within the predetermined second scale range, the administrative area boundary is adjusted, and the administrative area is merged into another adjacent administrative area to form a new administrative area, and the process returns to step S3-1; step S3-5, when the scale of the administrative area is within the predetermined third scale range, the administrative area boundary is adjusted, and the administrative area is divided based on the predetermined fourth scale range to form a plurality of the preliminary planning units.

[0013] The method for demarcating detailed land space planning units provided by the present invention may also have such a technical feature, wherein, in step S3-4, it is determined whether there is an adjacent administrative region with the same functional division as the administrative region among the adjacent administrative regions of the administrative region. If so, the administrative region is merged with the adjacent administrative region with the same functional division; if not, the administrative region is merged with a random adjacent administrative region, and the functional division of the administrative region with a larger area than the merged adjacent administrative region is used as the main functional division of the new administrative region after the merger.

[0014] The method for demarcating detailed national land space planning units provided by the present invention may also have such technical features, wherein, in step S3-5, natural features are used as references, one or more functional zones are used as boundaries, and the administrative area is divided based on the fourth scale range to obtain multiple preliminary planning units.

[0015] The method for demarcating detailed national land space planning units provided by the present invention may also have such technical characteristics, wherein the first scale range is 1 to 5 square kilometers, the second scale range is less than 1 square kilometer, the third scale range is greater than 5 square kilometers, and the fourth scale range is 1 to 5 square kilometers.

[0016] The method for demarcating detailed national land space planning units provided by the present invention may also have such technical features, wherein, in step S4, the verification includes verification of the municipal carrying capacity, the capacity of the transportation system, whether the service scope of basic public service facilities is met, and whether the land ownership boundaries are divided.

[0017] The method for demarcating detailed planning units of national land space provided by the present invention may also have such technical features, wherein, in step S5, the preliminary planning unit that has passed all verifications is used as the demarcated detailed planning unit, a unique identifier is assigned to each detailed planning unit, and the attribute information of the detailed planning unit is stored in a spatial database, and the attribute information includes the boundaries, area, streets or towns to which it belongs, and main functional zones of the detailed planning unit.

[0018] The present invention provides a national land space detailed planning unit delineation system, which has the following technical features: a target area determination module, used to determine the scope of the target area that needs to be planned in detail, and obtain the basic geographic information data of the target area; an administrative area boundary data acquisition module, used to obtain the administrative area boundary data corresponding to the target area based on the basic geographic information data; an administrative area boundary adjustment module, used to obtain the functional zoning data determined by the superior planning, and adjust the administrative area boundary data based on the scale of the administrative area, the functional zoning data and predetermined boundary adjustment rules; a preliminary planning unit generation module, used to obtain multiple preliminary planning units based on the adjusted administrative area boundary data; a preliminary planning unit verification module, used to verify the carrying capacity and service scope of each preliminary planning unit; and a detailed planning unit delineation module, used to delineate detailed planning units based on the calibration results of the preliminary planning units.

[0019] Functions and effects of the invention

[0020] The method and system for delineating detailed planning units of national land space provided by the present invention include the steps of determining the target area, obtaining the corresponding administrative area boundary data, adjusting the administrative area boundary based on the functional zoning determined by the superior planning, verifying the preliminary planning units divided after the adjustment, and delineating the detailed planning units according to the verification results. Therefore, it has the following beneficial effects in many aspects: Strong scientificity: The method and system of the present invention delineate detailed planning units based on clear rules and standards, avoiding the subjectivity and arbitrariness of manual experience. Strong operability: The method and steps of the present invention are clear and easy to operate, and can be automated using tools such as GIS software to improve efficiency. Good consistency: The method and system of the present invention can ensure the consistency of the delineation results of different areas and improve the efficiency of planning management. Strong practicality: The detailed planning units delineated by the method and system of the present invention have clear boundaries and clear functions, which are convenient for subsequent planning compilation and management. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Flowchart of a method for delineating detailed land space planning units in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of planned land division and administrative area division data in an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the superposition of functional zoning data and administrative area division data in an embodiment of the present invention;

[0024] Figure 4 is a schematic diagram of adjusting administrative area division data in an embodiment of the present invention;

[0025] Figure 5 is a schematic diagram of the detailed planning unit delineation in an embodiment of the present invention;

[0026] Figure 6 It is a structural block diagram of the national land space detailed planning unit delineation system in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following detailed description of the land space detailed planning unit demarcation method and system of the present invention is made in detail in combination with embodiments and drawings.

[0028] <Example>

[0029] Figure 1 It is a flow chart of the method for demarcating detailed national land space planning units in this embodiment.

[0030] like Figure 1As shown, the method for delineating detailed land space planning units in this embodiment includes the following steps:

[0031] Step S1, determining the planning scope: determining the scope of the target area that needs detailed planning, and obtaining basic geographic information data of the target area.

[0032] Step S2, identifying administrative area boundaries: based on basic geographic information data, obtaining administrative area boundary data corresponding to the target area.

[0033] Step S3, administrative area boundary adjustment: obtain the functional zoning data determined by the superior planning, adjust the administrative area boundary data based on the scale of the administrative area, the functional zoning data and the predetermined boundary adjustment rules, and obtain multiple preliminary planning units based on the adjusted administrative area boundaries.

[0034] Step S4, preliminary planning unit verification: verify the carrying capacity and service range of each preliminary planning unit.

[0035] Step S5, delineating detailed planning units: delineating detailed planning units based on the verification results.

[0036] The above steps will be described in detail below.

[0037] Step S1, determining the planning scope: determining the scope of the target area that needs detailed planning, and obtaining basic geographic information data of the target area.

[0038] In step S1, it is necessary to clearly define the boundaries of the target area for planning and collect relevant basic geographic information data of the target area.

[0039] For example, the target area that needs detailed planning is a specific area within the urban development boundary. The basic geographic information data collected for the target area may include topographic maps, remote sensing images, administrative division maps, etc.

[0040] Step S2, identifying administrative area boundaries: obtaining administrative area boundary data corresponding to the target area.

[0041] In step S2, the administrative boundary data for the target area is obtained. This data needs to be accurate and authoritative, so it is preferred to use officially published administrative boundary data for the target area. This step aims to use administrative boundaries as the basis for delineating detailed planning units, ensuring that the management attributes of the planning units are clear.

[0042] For example, obtain the administrative area boundary vector data of each street (township) within the officially released urban development boundary.

[0043] Figure 2It is a schematic diagram of the planning land division and administrative area division data in this embodiment.

[0044] like Figure 2 As shown in the figure, for a target area, before the demarcation work begins, the spatial data of the target area, such as the planned land use data, terrain data, planning zoning data, and administrative area division data, are prepared as the basis for the demarcation of detailed planning units. Based on the above spatial data, the following can be generated: Figure 3 As shown in the schematic diagram, the land and water areas within the target area are shown in dark gray, the urban roads are shown in light gray, and the administrative area boundaries are marked with dotted lines.

[0045] according to Figure 2 The administrative boundaries in the map divide the area into four administrative areas A to D.

[0046] Step S3, administrative area boundary adjustment: obtain the functional zoning data determined by the superior planning, adjust the administrative area boundary data based on the scale of the administrative area, the functional zoning data and the predetermined boundary adjustment rules, and obtain multiple preliminary delineated detailed planning units based on the adjusted administrative area boundaries (for the convenience of description, they are recorded as preliminary planning units).

[0047] Here, the higher-level planning is, for example, the overall planning.

[0048] like Figure 2 As shown, step S3 specifically includes the following sub-steps:

[0049] Step S3-1, determining the size of the administrative region based on the administrative region boundary.

[0050] In this embodiment, it is specifically determined whether the scale of the administrative region (the area within the administrative region boundary) is within a predetermined first scale range, a second scale range, and a third scale range. In this embodiment, the first scale range is 1 to 5 square kilometers; the second scale range is less than 1 square kilometer; and the third scale range is greater than 5 square kilometers.

[0051] Step S3-2: When the scale of the administrative area is within the first scale range (i.e., 1 to 5 square kilometers), the functional zoning boundary data and the administrative area boundary data are superimposed and analyzed to further determine whether the administrative area boundaries of each administrative area are consistent with the functional zoning boundaries. When the judgment is yes (i.e., consistent), a preliminary planning unit is obtained based on the current administrative area boundaries.

[0052] In step S3-3, if the determination in step S3-2 is negative, that is, if the administrative region boundaries are inconsistent with the functional zone boundaries, the administrative region boundaries are adjusted based on the functional zone boundaries to form one or more new administrative regions. This prevents the same functional zone from being divided into multiple detailed planning units. The process then returns to step S3-1, where the scale and function of the newly adjusted administrative regions are again determined.

[0053] In step S3-4, if the administrative region's size falls within the second size range (i.e., less than 1 square kilometer), the administrative region boundaries are adjusted, and the entire administrative region is merged into another adjacent administrative region to form a new administrative region. The process then returns to step S3-1, where the size and function of the newly merged administrative region are again determined.

[0054] When merging regions, first determine whether there are other administrative regions adjacent to the administrative region with the same functional zoning as the administrative region. If so, merge the administrative region with the adjacent administrative region with the same functional zoning; if not, merge the administrative region with a random adjacent administrative region, and use the functional zoning of the larger area between the administrative region and the merged adjacent administrative region as the main functional zoning of the new administrative region after the merger.

[0055] Among them, by checking the scale of the administrative area, it can be found whether there are scattered land uses in adjacent streets (townships) and spaces where land property boundaries are cut. These land uses are divided by functional zoning boundaries and property boundaries, and the area is small, making it difficult to carry out detailed planning independently. Therefore, for such scattered land uses, they are incorporated into adjacent streets (townships) to form a detailed planning unit to avoid the appearance of too small and unreasonable planning units. This step requires setting an area threshold (i.e., the second scale range mentioned above), and scattered land uses below this area threshold will be merged. The determination of this area threshold needs to be adjusted according to actual conditions and a sensitivity analysis needs to be conducted.

[0056] Step S3-5: When the size of the administrative region is within the third size range (ie, greater than 5 square kilometers), the administrative region boundary is adjusted, and the administrative region is divided based on the predetermined fourth size range to form a plurality of preliminary planning units.

[0057] The fourth scale range can be the same as the first scale range, i.e., 1 to 5 square kilometers, or it can be any other numerical range. Furthermore, when making the divisions, the administrative area can be divided based on the fourth scale range, taking one or more functional zones as boundaries, with reference to natural features such as rivers and mountains, to obtain multiple preliminary planning units.

[0058] Figure 3It is a schematic diagram of the superposition of functional zoning data and administrative area division data in this embodiment.

[0059] like Figure 3 As shown, based on spatial data, Figure 2 Functional zoning data is overlaid on the planned land use and administrative division data shown. For functional zoning, horizontal lines represent residential areas, diagonal grid lines represent commercial and business districts, diagonal lines represent comprehensive service areas, plus and minus lines represent green space and leisure areas, and cross lines represent strategically reserved areas. Thicker solid gray lines represent the boundaries of functional zones.

[0060] As you can see, Figure 3 In the figure, administrative regions A and B both contain multiple functional zones, which means that the functional zone division is inconsistent with the administrative zone division. Administrative regions C and D only contain one functional zone, which means that the functional zone division is basically consistent with the administrative zone division.

[0061] Figure 4 It is a schematic diagram of adjusting the administrative area division data in this embodiment.

[0062] like Figure 3 and Figure 4 As shown, according to the above step S3, the scale and function of each administrative area are judged respectively, and when the administrative area division is inconsistent with the functional zoning division, the administrative area boundary is adjusted based on the functional zoning, and a plurality of preliminary planning units are obtained based on the adjusted administrative area boundaries.

[0063] Specifically, taking administrative area B as an example, it includes a commercial business area, a comprehensive service area, and two residential areas. According to the above steps, since the area of ​​administrative area B is greater than 5 square kilometers, and the functional zoning is inconsistent with the administrative area division, the administrative area boundary is adjusted based on the functional zoning boundary, and administrative area B is divided into four new administrative areas B1 to B4 according to the functional zoning. Then, for each new administrative area, the scale and function are judged again. The areas of the new administrative areas B2 to B4 are all within 1 to 5 square kilometers, and the administrative area division is consistent with the functional zoning division, so they are retained as three preliminary planning units. The area of ​​the new administrative area B1 is less than 1 square kilometer, so it is merged into other adjacent administrative areas, and according to the functional zoning, it is preferably merged into administrative area C. At the same time, after the same processing flow, part of administrative area A is also merged into administrative area C due to its small area, forming a new administrative area C'. Figure 4 The medium-thick black line is the boundary of the preliminary planning unit.

[0064] The same applies to other administrative regions and will not be elaborated here.

[0065] Step S4, preliminary planning unit verification: verify the carrying capacity and service range of each preliminary planning unit.

[0066] Specifically, after the administrative boundaries are adjusted in step S3, each area formed by the adjusted boundaries becomes a preliminary planning unit. Each preliminary planning unit is verified in multiple aspects, including municipal carrying capacity, transportation system capacity, whether it meets the service scope of basic public service facilities, and whether the land ownership boundary is divided.

[0067] Step S5, delineating detailed planning units: delineating detailed planning units according to the verification results of the preliminary planning units.

[0068] Specifically, preliminary planning units that pass all checks will be used as delineated detailed planning units.

[0069] For the preliminary planning units that have not passed the verification, corresponding prompt information can be generated to remind technical personnel to manually process them. Alternatively, the boundaries of the preliminary planning units can be further adjusted according to the verification results and predetermined verification adjustment rules to obtain detailed division units. For example, when the verification result of a certain preliminary planning unit is that at least one of the municipal carrying capacity, transportation system capacity, and basic public service facility service scope is not satisfied, the preliminary planning unit can be merged with another adjacent preliminary planning unit to form a new preliminary planning unit, and then return to step S3 to perform scale judgment and function judgment on the new preliminary planning unit. When the verification result of a certain preliminary planning unit is that there is a division in the land ownership boundary, the preliminary planning unit is incorporated into the corresponding adjacent preliminary planning unit according to the division situation to form a new preliminary planning unit, and then return to step S3 to perform scale judgment and function judgment on the new preliminary planning unit.

[0070] After the detailed planning units are delineated, a unique identifier is assigned to each detailed planning unit, and attribute information such as the boundaries, area, affiliated streets (townships), and main functional zones of the detailed planning units are recorded. The information of all detailed planning units is stored in the spatial database for subsequent planning management and application.

[0071] Figure 5 It is a schematic diagram of the detailed planning unit delineation in this embodiment.

[0072] like Figure 5 As shown in the figure, if the preliminary planning unit passes the verification, it will be demarcated as the final detailed planning unit, and each detailed planning unit will be assigned a unique identifier CZ-01 unit to CZ-09 unit, and the boundary, area, main functional division and other information of the detailed planning unit shown by the thick black line in the figure will be recorded.

[0073] Figure 6 It is a structural block diagram of the national land space detailed planning unit delineation system in this embodiment.

[0074] like Figure 6 As shown, this embodiment also provides a land space detailed planning unit delineation system 10 corresponding to the above method, which includes a target area determination module 11, an administrative area boundary data acquisition module 12, an administrative area boundary adjustment module 13, a preliminary planning unit generation module 14, a preliminary planning unit verification module 15, a detailed planning unit delineation module 16, a unit information storage module 17 and a general control module 18 for controlling the work of the above modules.

[0075] The target area determination module 11 determines the scope of the target area that needs to be planned in detail according to the method of step S1 above, and obtains basic geographic information data of the target area.

[0076] The administrative region boundary data acquisition module 12 acquires the administrative region boundary data corresponding to the target region according to the method of step S2 above.

[0077] The administrative region boundary adjustment module 13 obtains the functional zoning data according to the method of step S3 above, and adjusts the administrative region boundary according to the scale of the administrative region and the functional zoning data.

[0078] The preliminary planning unit generating module 14 generates a plurality of preliminary planning units based on the adjusted administrative area boundaries according to the method of step S3 .

[0079] The preliminary planning unit checking module 15 checks each preliminary planning unit based on the method of step S4 and predetermined checking rules.

[0080] The detailed planning unit demarcation module 16 demarcates the verified preliminary planning units into detailed planning units according to the method of step S5 above, numbers them, and stores the numbers and information such as the area, main functional divisions, etc. of the detailed planning units in the unit information storage module 17.

[0081] The above-mentioned system 10 can be implemented based on tools such as GIS software. Taking GIS software as an example, the algorithm process corresponding to the above-mentioned module is set in the GIS software, and key parameters such as the predetermined scale range (area threshold) and the parameters required for verification are set. Then, tools such as GIS software can be used to achieve automatic delineation.

[0082] Functions and Effects of the Embodiments

[0083] The method and system for delineating detailed planning units for national land space provided in this embodiment include the steps of determining the target area, obtaining the corresponding administrative area boundary data, adjusting the administrative area boundaries based on the functional zoning determined by the superior planning, verifying the preliminary planning units divided after the adjustment, and delineating the detailed planning units according to the verification results. Therefore, it has the following beneficial effects in many aspects: Strong scientificity: The method and system of the present invention delineate detailed planning units based on clear rules and standards, avoiding the subjectivity and arbitrariness of manual experience. Strong operability: The method and steps of the present invention are clear and easy to operate, and can be automated using tools such as GIS software to improve efficiency. Good consistency: The method and system of the present invention can ensure the consistency of delineation results of different areas and improve planning management efficiency. Strong practicality: The detailed planning units delineated by the method and system of the present invention have clear boundaries and clear functions, which facilitates subsequent planning compilation and management.

[0084] In this embodiment, basic geographic information data of the target area and officially released administrative region vector boundary data are obtained, thus providing reliable basic data for subsequent steps. In addition, since administrative regions are used as the basis for delineating detailed planning units, the management attributes of the final delineated detailed planning units can be ensured to be clear.

[0085] Furthermore, in the step of adjusting the administrative area boundaries, it is determined whether the functional zoning boundaries determined by the superior plan are consistent with the administrative area boundaries. If they are inconsistent, the administrative area boundaries are adjusted based on the functional zoning boundaries. That is, the integrity of the functional zoning is given priority, so that the boundaries of the detailed planning units are aligned with the functional zoning boundaries as much as possible. Therefore, it is possible to avoid the situation where the same functional zoning is divided by multiple detailed planning units, thereby ensuring the integrity and coordination of the planning.

[0086] Furthermore, in the step of adjusting the administrative area boundaries, the scale of the administrative area was also determined. For scattered land uses that were small in area and difficult to plan in detail independently, and spaces whose land property boundaries were cut, they were incorporated into adjacent detailed planning units. For spaces that were too large, they were scientifically and reasonably divided with reference to natural features and the functional zoning of the master plan as the boundaries, thereby avoiding the occurrence of overly large or too small, unreasonable detailed planning units and reducing the difficulty of subsequent detailed planning work.

[0087] Furthermore, after the preliminary planning units were divided, each preliminary planning unit was verified, including verification of multiple aspects such as municipal carrying capacity, transportation system capacity, and public facility service scope. If the preliminary planning unit failed the verification, it was further adjusted to ensure that the final detailed planning unit had sufficient carrying capacity and service scope, which also made it easier to carry out subsequent detailed planning work.

[0088] Furthermore, a unique identifier is assigned to each delineated detailed planning unit, and comprehensive attribute information of each detailed planning unit is recorded and stored in a spatial database as structured data, thereby making subsequent planning management and application more convenient.

[0089] In the embodiment, in the step of adjusting the administrative area boundaries, the determination of the administrative area scale, the determination of the functional zoning, and the adjustment of the boundaries based on the matching of the scale and the functional zoning have all formed an algorithm with clear procedures and clear operations. Therefore, the method based on the embodiment can be set up on the basis of software tools such as GIS to achieve automatic demarcation without manual operation.

[0090] The above embodiments are merely illustrative of specific implementations of the present invention, and the present invention is not limited to the scope of the description of the above embodiments. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention as claimed. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for delineating detailed land space planning units, characterized in that: The following steps are involved: Step S1, determining the scope of the target area that needs detailed planning and obtaining basic geographic information data of the target area; Step S2, based on the basic geographic information data, obtaining administrative area boundary data corresponding to the target area; Step S3, obtaining functional zoning data determined by the superior planning, adjusting the administrative region boundary data based on the size of the administrative region, the functional zoning data, and a predetermined boundary adjustment rule, and obtaining a plurality of preliminary planning units based on the adjusted administrative region boundary data; Step S4, checking the carrying capacity and service range of each of the preliminary planning units; Step S5: Delineating detailed planning units based on the calibration results of the preliminary planning units.

2. The method for delineating detailed land space planning units according to claim 1, characterized in that: in, In step S1, the basic geographic information data includes topographic maps, remote sensing images, and administrative division maps. In step S2, the officially released administrative region boundary vector data of the target region is obtained as the administrative region boundary data.

3. The method for delineating detailed land space planning units according to claim 1, Its characteristics are: Wherein, step S3 includes the following sub-steps: Step S3-1, determining the size of the administrative region based on the administrative region boundary in the administrative region boundary data; Step S3-2: When the size of the administrative region is within a predetermined first size range, the functional zoning boundary data and the administrative region boundary data are superimposed and analyzed to further determine whether the administrative region boundary of each administrative region is consistent with the corresponding functional zoning boundary. If the determination is yes, the preliminary planning unit is obtained based on the administrative region boundary. Step S3-3: When the result of the judgment in step S3-2 is no, the administrative area boundary is adjusted based on the functional area boundary to form a new administrative area, and the process returns to step S3-1; Step S3-4: When the size of the administrative region is within a predetermined second size range, adjust the administrative region boundary, merge the administrative region into another adjacent administrative region to form a new administrative region, and return to step S3-1; Step S3-5: When the size of the administrative region is within a predetermined third size range, the administrative region boundary is adjusted, and the administrative region is divided based on a predetermined fourth size range to form a plurality of preliminary planning units.

4. The method for delineating detailed land space planning units according to claim 3, characterized in that: in, In step S3-4, determine whether there is an adjacent administrative region with the same functional partition as the administrative region among the adjacent administrative regions of the administrative region. If so, merge the administrative region with the adjacent administrative region with the same functional partition; if not, merge the administrative region with a random adjacent administrative region, and use the functional partition of the one with the larger area between the administrative region and the merged adjacent administrative region as the main functional partition of the merged new administrative region.

5. The method for delineating detailed land space planning units according to claim 3, characterized in that: in, In step S3-5, the administrative area is divided based on the fourth scale range with natural features as a reference and one or more functional zones as boundaries to obtain a plurality of preliminary planning units.

6. The method for delineating detailed land space planning units according to claim 3, characterized in that: in, The first scale range is 1 to 5 square kilometers, The second scale range is less than 1 square kilometer, The third scale range is larger than 5 square kilometers, The fourth scale range is 1 to 5 square kilometers.

7. The method for delineating detailed land space planning units according to claim 1, characterized in that: in, In step S4, the verification includes verification of the municipal carrying capacity, the capacity of the transportation system, whether the service scope of basic public service facilities is met, and whether the land ownership boundary is divided.

8. The method for delineating detailed land space planning units according to claim 1, characterized in that: in, In step S5, the preliminary planning units that have passed all the checks are used as the delineated detailed planning units, a unique identifier is assigned to each of the detailed planning units, and the attribute information of the detailed planning units is stored in the spatial database. The attribute information includes the boundary, area, street or town, and main functional divisions of the detailed planning unit.

9. A national land space detailed planning unit delineation system, characterized by: include: A target area determination module is used to determine the scope of the target area that needs detailed planning and obtain basic geographic information data of the target area; An administrative region boundary data acquisition module, configured to acquire administrative region boundary data corresponding to the target region based on the basic geographic information data; An administrative area boundary adjustment module is used to obtain functional zoning data determined by the superior planning, and adjust the administrative area boundary data based on the size of the administrative area, the functional zoning data and a predetermined boundary adjustment rule; a preliminary planning unit generating module, configured to obtain a plurality of preliminary planning units based on the adjusted administrative area boundary data; A preliminary planning unit verification module, configured to verify the carrying capacity and service scope of each of the preliminary planning units; as well as The detailed planning unit delineation module is used to delineate detailed planning units based on the calibration results of the preliminary planning units.

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