CN112308604A - Rural land value grading method and system based on GIS - Google Patents
Rural land value grading method and system based on GIS Download PDFInfo
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Abstract
The invention discloses a GIS-based rural land value grading method and a GIS-based rural land value grading system, wherein a rural land value system is connected with a GIS rural land database in a networking manner, the geographic position and land basic information of a land block to be graded and evaluated are imported from the inside of the GIS rural land database, the land block to be graded and evaluated is extracted and exported through an information extraction module so as to be convenient for later use, and then a plurality of graded and priced reference land blocks, and the basic information and the price information of the reference land blocks are exported from the inside of the GIS land database by the information extraction module according to the land basic information. According to the scheme, the GIS rural land database extracts and outputs the information of the GIS map database, applies advanced GIS calculation and system integration ideas, extracts the pricing land blocks to be classified and similar reference land blocks matched with the pricing land blocks in a big data mode, and enables the classification and pricing method to be more objective and the value to be more accurately determined by using the classification and pricing mode of the reference land blocks for reference.
Description
Technical Field
The invention relates to the technical field of land value grading, in particular to a rural land value grading method and a rural land value grading system based on a GIS.
Background
For a long time, rural land ownership in China is grouped, land contract authority is grouped to farmers, contract land operation authority is mainly grouped to farmers in villages or village groups, and rural government management departments are responsible for rural land circulation and other matters. The three rights belong to different rights bodies respectively, and the related management departments have unclear responsibilities, so that the land trading link is multiple, the cost is high, the right is difficult to confirm, and the land circulation is not smooth. The method also causes the key of difficult evaluation of the rural land value, has few open market transaction cases and lacks of a good evaluation platform and mechanism.
Agricultural land grading is an important content of land evaluation and an important means for realizing the progress from the quantity management of land to the comprehensive quantity and quality management target. The county-level agricultural land grading achievement is mainly applied to the aspects of the standard of the uniform annual output value, the periodic updating of the regional comprehensive price, the measurement of the land acquisition compensation price and the like at present.
The method has great significance for accurately and scientifically evaluating the quality of the cultivated land to control the production benefit of the cultivated land and finely managing cultivated land resources, the land grading evaluation at present mainly adopts the methods of combining quantitative analysis and qualitative analysis, GIS model space analysis, difference value comparison and the like, the natural, social, economic and other factors forming the quality of the cultivated land are comprehensively compared, a cultivated land grading evaluation system is established, a factor system and an influence weight are determined, and the research shows that: the arable land level and the arable land and the like have obvious positive correlation, and both can better show the grain yield per unit or total yield level; the classification can better reflect the utilization level of the cultivated land, the variation range of the represented grain yield is wider, and the difference of the grain yield is easier to quantify, so that the evaluation of the land improvement performance is easier to realize in the province; the quality level of the cultivated land has a certain correlation with the level of the location and the utilization benefit, and the level ratio and the like can better reflect the distribution characteristics of the cultivated land on the space, thereby providing data support for the resource and asset value accounting of the cultivated land and the cultivated land occupation and supplement relationship in the area.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a method and a system for grading a rural land value based on a GIS, in which the GIS rural land database extracts and outputs information of a GIS map database, and extracts a pricing land parcel to be graded and a similar reference land parcel matched with the pricing land parcel by means of big data by using advanced GIS calculation and system integration ideas, so as to solve the problems proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme, a rural land value grading method based on GIS and a system thereof, comprising the following steps:
s1: the rural land value system is connected with a GIS rural land database in a networking way, the geographic position and the land basic information of the land parcel to be graded and evaluated are led into the GIS rural land database, the information extraction module is used for extracting and leading out the land parcel to be conveniently used in the later period, and then the information extraction module leads out a plurality of graded and priced reference land parcels, the basic information and the price information of the reference land parcels from the inside of the GIS rural land database according to the land basic information;
s2: the basic information and the price information of the reference land parcel and the geographical position and the land basic information of the land parcel to be graded and evaluated are received by the reference land parcel price comparison and information integration module respectively, and the information integration module is used for carrying out preliminary integration processing on the information of the land parcel to be graded and evaluated, modeling and sorting are carried out, so that the later information comparison is facilitated;
s3: the land assessment grading module grades the modeling information output by the information integration module according to agricultural land and non-agricultural land screening, land factor grading, reference land comparison and land factor assessment, the grading information and the land basic information are packaged in the land assessment grading module, and then the reference land price information matched with the land assessment grading module is output by the reference land price comparison and synchronously transmitted to the image-text output module;
s4: the land assessment pricing module completes the valuation of the land with the fixed grade according to the steps of screening agricultural land and non-agricultural land, pricing land factors, pricing reference land and pricing the land factors;
s5: and the image-text output module and the display module perform image modeling and character signal output on the output information of the land assessment pricing module and perform digital signal output through the display module.
Preferably, the land basic information in the step S1 includes plot size, agricultural or non-agricultural, ground construction and planting crop information, and the land basic information is used for the judgment of later agricultural or non-agricultural plots and the basic information of grading and valuation.
Preferably, a data conversion module is arranged inside the information extraction module in step S1, and is used for identifying and converting the information content of the database of the GIS rural land into a readable digital signal.
Preferably, the parcel factors in the steps S3 and S4 include the current base price and the factor evaluation value, which is determined by the human geographical factor and the natural geographical factor.
Preferably, the humanistic geographic factors respectively comprise policy factors and industrial factors, the policy factors show that local agriculture has some soil policies in the aspects of agricultural development, land circulation and the like, the preference degrees are different, the industrial factors show that whether local agriculture has dominant industries with enough influence on the market or not, and if so, the natural shortage value of land is high.
Preferably, the natural geographic factors include location factors, soil texture factors and water source conditions, and the location factors are mainly represented by geographic position factors such as traffic conditions, distance from towns to towns and convenience in cultivation.
A rural land value grading system based on GIS comprises a GIS rural land database, an information extraction module, a reference land block price comparison, an information integration module, an image-text output module and a display module, wherein the output end of the GIS rural land database is electrically connected with the input end of the information extraction module, the GIS rural land database is a rural land information database formed based on the GIS database, the information extraction module is in communication connection with the GIS rural land database, the output end of the information extraction module is electrically connected with the input end of the reference land block price comparison and information integration module, the output end of the information integration module is electrically connected with a land evaluation grading module, the output ends of the land evaluation grading module and the reference land block price comparison are electrically connected with a land evaluation pricing module, and the output end of the land evaluation pricing module is electrically connected with the input end of the image-text output module, the output end of the image-text output module is electrically connected with the input end of the display module.
Preferably, the land evaluation grading module and the land evaluation pricing module are data processing programs, the land evaluation grading module is internally provided with agricultural land and non-agricultural land screening, land factor grading, reference land comparison and land factor evaluation units, and the land evaluation pricing module is internally provided with agricultural land and non-agricultural land screening, land factor pricing, reference land pricing and land factor evaluation units.
Preferably, the reference parcel pricing comprises determining a similar reference parcel and a reference parcel valuation, wherein the reference parcel pricing is used for matching a parcel to be valued with a similar reference parcel and determining the value range of the parcel according to the price of the similar reference parcel.
The invention has the technical effects and advantages that:
in the scheme, the GIS rural land database extracts and outputs the information of the GIS map database, applies advanced GIS calculation and system integration ideas, extracts the pricing plots to be classified and similar reference plots matched with the same in a big data mode, and enables the classification and pricing method to be more objective and the value to be more accurately determined by using the classification and pricing modes of the reference plots; and the natural factors and the humanistic factors of the land parcel are considered through the land assessment grading module and the land assessment pricing module, grading and valuation are calibrated jointly through multi-factor determination, the price range is further reduced and determined according to the comparison between the specific properties of the land parcel and the reference land parcel, a proper reference value range is reached, the judgment of a user is facilitated, and the practicability of the system is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a GIS rural land database structure of the present invention;
FIG. 3 is a schematic structural diagram of a land assessment grading module of the present invention;
FIG. 4 is a schematic diagram of a land assessment pricing module structure of the present invention;
FIG. 5 is a schematic view of the plot factor structure of the present invention.
The reference signs are:
1. a GIS rural land database; 2. an information extraction module; 3. comparing the prices of the reference plots; 4. an information integration module; 5. a land assessment grading module; 6. a land assessment pricing module; 7. an image-text output module; 8. and a display module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The method comprises the following steps:
s1: the rural land value system is connected with a GIS rural land database 1 in a networking manner, the geographic position and land basic information of a land parcel to be graded and evaluated are led into the GIS rural land database 1, the land parcel to be graded and evaluated is extracted and led out through an information extraction module 2 so as to be convenient for later use, and then a plurality of graded and priced reference land parcels, the basic information and the price information of the reference land parcels are led out from the inside of the GIS rural land database 1 through the information extraction module 2 according to the land basic information;
s2: the basic information and the price information of the reference land parcel and the geographical position and the land basic information of the land parcel to be graded and evaluated are received by the reference land parcel price comparison 3 and the information integration module 4 respectively, and the information integration module 4 carries out preliminary integration processing on the information of the land parcel to be graded and evaluated, carries out modeling and sorting and is convenient for later information comparison;
s3: the land assessment grading module 5 grades the modeling information output by the information integration module 4 according to agricultural land and non-agricultural land screening, land factor grading, reference land comparison and land factor assessment, and packs the grading information and basic land information into the land assessment grading module 6, and then the reference land price information matched with the land assessment grading module 5 is output by the reference land price comparison module 3 and synchronously transmitted to the image-text output module 7;
s4: the land assessment pricing module 6 completes the valuation of the land with the fixed grade according to the steps of screening agricultural land and non-agricultural land, pricing land factors, pricing reference land and pricing land factors;
s5: the image-text output module 7 and the display module 8 carry out image modeling and text signal output on the output information of the land assessment pricing module 6, and carry out digital signal output through the display module 8.
As shown in fig. 1 and 2, the basic land information in step S1 includes plot size, agricultural or non-agricultural, ground construction and crop planting information, and the basic land information is used for the judgment of later agricultural or non-agricultural plots and the basic information for grading and valuation.
In step S1, a data conversion module is disposed inside the information extraction module 2 and is used to identify and convert the information content in the database 1 for rural areas of GIS into a readable digital signal.
As shown in fig. 5, the land factors in steps S3 and S4 include the current standard price and the factor measurement value, the factor measurement value is determined by the humanistic geographic factor and the natural geographic factor, the humanistic geographic factor includes policy factors and industrial factors, respectively, the policy factors indicate that each region has some "soil policies" for agricultural development, land circulation, and the like, the preference degrees are different, the industrial factors indicate whether the local agriculture has a dominant industry with enough influence on the market, and if so, the natural shortage of land is high.
As shown in fig. 5, the natural geographic factors include location factors, soil property factors and water source conditions, and the location factors are mainly represented by geographic position factors such as traffic conditions, distance from town, and whether cultivation is convenient.
Specifically, the grading and evaluation are calibrated and evaluated together through multi-factor determination, and the price range is further reduced and determined according to the comparison between the specific properties of the land parcel and the reference land parcel.
A rural land value grading system based on GIS comprises a GIS rural land database 1, an information extraction module 2, a reference land price comparison module 3, an information integration module 4, an image-text output module 7 and a display module 8, wherein the output end of the GIS rural land database 1 is electrically connected with the input end of the information extraction module 2, the GIS rural land database 1 is a rural land information database formed based on the GIS database, the information extraction module 2 is in communication connection with the GIS rural land database 1, the output end of the information extraction module 2 is electrically connected with the reference land price comparison module 3 and the input end of the information integration module 4, the output end of the information integration module 4 is electrically connected with a land evaluation grading module 5, the output ends of the land evaluation grading module 5 and the reference land price comparison module 3 are electrically connected with a land evaluation pricing module 6, the output end of the land evaluation pricing module 6 is electrically connected with the input end of the image-text output module 7, the output end of the image-text output module 7 is electrically connected with the input end of the display module 8.
The land evaluation grading module 5 and the land evaluation pricing module 6 are data processing programs, agricultural land and non-agricultural land screening, land factor grading, reference land comparison and land factor evaluation units are arranged in the land evaluation grading module 5, and agricultural land and non-agricultural land screening, land factor pricing, reference land pricing and land factor evaluation units are arranged in the land evaluation pricing module 6.
The reference plot pricing comprises the steps of determining a similar reference plot and the evaluation of the reference plot, wherein the reference plot pricing is used for matching the plot to be evaluated with the similar reference plot and determining the value range of the plot according to the price of the similar reference plot.
Finally, it should be noted that, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;
secondly, in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to common designs, and under the condition of no conflict, the same embodiment and different embodiments of the invention can be combined with each other;
finally, the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like which are within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A rural land value grading method based on GIS is characterized by comprising the following steps:
s1: the rural land value system is connected with a GIS (geographic information System) rural land database (1) in a networking manner, the geographic position and land basic information of a land parcel to be graded and evaluated are led into the GIS rural land database (1), the information extraction module (2) is used for extracting and leading out the information so as to be convenient for later use, and then the information extraction module (2) leads out a plurality of graded and priced reference land parcels and the basic information and price information of the reference land parcels from the inside of the GIS land database (1) according to the land basic information;
s2: basic information and price information of the reference land parcel and geographical position and land basic information of the land parcel to be graded and evaluated are received by the reference land parcel price comparison (3) and the information integration module (4) respectively, and the information integration module (4) is used for carrying out preliminary integration processing on the information of the land parcel to be graded and evaluated, modeling and sorting are carried out, so that later information comparison is facilitated;
s3: the land evaluation grading module (5) grades the modeling information output by the information integration module (4) according to agricultural land and non-agricultural land screening, land factor grading, reference land comparison and land factor evaluation, the grading information and basic land information are packaged in the land evaluation grading module (6), and then the reference land price information matched with the land evaluation grading module (5) is output by the reference land price comparison (3) and synchronously transmitted to the image-text output module (7);
s4: the land assessment pricing module (6) completes the valuation of the graded land according to the steps of screening agricultural land and non-agricultural land, factor pricing of the land, pricing of a reference land and factor valuation of the land;
s5: the image modeling and the character signal output are carried out on the output information of the land assessment pricing module (6) by an image-text output module (7) and a display module (8), and the digital signal output is carried out by the display module (8).
2. The rural land value grading method according to claim 1, wherein the land essential information in the step S1 comprises plot size, agricultural or non-agricultural, ground construction and planting crop information, and the land essential information is used for the judgment of later agricultural or non-agricultural plots and the basic information for grading and valuation.
3. The GIS based rural land value grading method according to claim 1, wherein the information extraction module (2) in step S1 is internally provided with a data conversion module for identifying and converting the information content of the GIS rural land database (1) into readable digital signals.
4. The GIS based rural land value grading method according to claim 1, wherein the land factors in the steps S3 and S4 include current benchmark price and factor reckoning value, which is determined by human geographical factor and natural geographical factor.
5. The GIS-based rural land value grading method according to claim 4, wherein the humanistic geographic factors respectively comprise policy factors and industry factors, the policy factors represent that local regions have some soil policies on agricultural development, land circulation and the like, the preference degrees are different, and the industry factors represent that whether local agriculture has dominant industries with enough influence on the market, if any, the natural shortage value of land is high.
6. The GIS based rural land value grading method according to claim 4, wherein the natural geographic factors comprise location factors, soil property factors and water source conditions, and the location factors are mainly represented by geographic position factors such as traffic conditions, distance from town, whether cultivation is convenient and the like.
7. A rural land value grading system based on GIS is characterized by comprising a GIS rural land database (1), an information extraction module (2), a reference land price comparison module (3), an information integration module (4), an image-text output module (7) and a display module (8), wherein the output end of the GIS rural land database (1) is electrically connected with the input end of the information extraction module (2), the GIS rural land database (1) is a rural land information database formed based on the GIS database, the information extraction module (2) is in communication connection with the GIS rural land database (1), the output end of the information extraction module (2) is electrically connected with the reference land price comparison module (3) and the input end of the information integration module (4), the output end of the information integration module (4) is electrically connected with an evaluation grading module (5), the land evaluation grading module (5) and the output end of the reference land block price comparison module (3) are electrically connected with a land evaluation pricing module (6), the output end of the land evaluation pricing module (6) is electrically connected with the input end of the image-text output module (7), and the output end of the image-text output module (7) is electrically connected with the input end of the display module (8).
8. The GIS based rural land value grading system according to claim 7, wherein the land assessment grading module (5) and the land assessment pricing module (6) are data processing programs, the land assessment grading module (5) is internally provided with units for agricultural land and non-agricultural land screening, land factor grading, reference land comparison and land factor assessment, and the land assessment pricing module (6) is internally provided with units for agricultural land and non-agricultural land screening, land factor pricing, reference land pricing and land factor assessment.
9. The GIS based rural land value grading system according to claim 8, wherein the reference land pricing comprises determining a similar reference land and a reference land valuation, the reference land pricing is used to match a land to be valued with a similar reference land and determine a value range of the land according to prices of the similar reference land.
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| CN202011130113.5A CN112308604A (en) | 2020-10-21 | 2020-10-21 | Rural land value grading method and system based on GIS |
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| CN103020100A (en) * | 2011-08-23 | 2013-04-03 | 波音公司 | System, method and computer program product for parcel assessment |
| CN110399569A (en) * | 2019-07-19 | 2019-11-01 | 银联智策顾问（上海）有限公司 | A kind of method and assessment device based on big data assessment land values |
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- 2020-10-21 CN CN202011130113.5A patent/CN112308604A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000030641A (en) * | 2000-03-09 | 2000-06-05 | 한창수 | A real estate estimated value system for utilizing a internet and the method thereof |
| KR20010044813A (en) * | 2001-03-28 | 2001-06-05 | 홍성철 | System and method for estimating the land price |
| CN103020100A (en) * | 2011-08-23 | 2013-04-03 | 波音公司 | System, method and computer program product for parcel assessment |
| CN202533938U (en) * | 2012-05-14 | 2012-11-14 | 重庆市国土资源和房屋勘测规划院 | Touch query machine/mobile equipment-based land grading and evaluation processing system |
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