This standard specifies the classification system and codes for the macro information of thematic maps. This standard is applicable to the establishment of thematic map databases and the production of related digital products. GB/T 18317-2001 Classification and codes for thematic map information GB/T18317-2001 Standard download decompression password: www.bzxz.net
This standard specifies the classification system and codes for the macro information of thematic maps. This standard is applicable to the establishment of thematic map databases and the production of related digital products.

ICS 07.040
National Standard of the People's Republic of China
GB/T18317—2001
Classify and codes for the thematic map information
Classify and codes for the thematic map informationIssued on March 5, 2001
Implemented on September 1, 2001
Issued by the State Administration of Quality and Technical Supervision
GB/T18317—2001
Principles and methods of information classification and coding
Classification code table
ITKANK
GB/T18317—2001
This standard was drafted based on GB/T1.11993 "Guidelines for standardization work Unit 1: Rules for drafting and presentation of standards Part 1: Basic provisions for standardization" and GB/T7026—1986 "Guidelines for standardization work - Provisions for the preparation of information classification and coding standards". This standard is drafted based on the "Classification and Coding Scheme for Thematic Map Information" of the "Eighth Five-Year Plan" research project of the State Administration of Surveying, Mapping and Geoinformation, and is first formulated after correction and supplementation based on the experience of comprehensive geographic information systems and land and resources mapping such as the Liaoning Provincial Land and Resources Information System. This standard is proposed and managed by the State Administration of Surveying, Mapping and Geoinformation. The drafting unit of this standard is the Chinese Academy of Surveying and Mapping. The main drafters of this standard are Yao Xurong, Guo Qingsheng, Su Shanwu and Wang Hong. 1 Scope
National Standard of the People's Republic of China
Classify and codes for thematic map information
Classify and codes for thematic map information This standard specifies the classification system and codes for thematic map macro information. This standard is applicable to the establishment of thematic map databases and the production of related digital products. 2 Definitions
This standard adopts the following definitions.
2.1 Thematic map
GB/T18317—2001
Thematic maps are maps that highlight the characteristics of one or more natural and human phenomena. All maps except ordinary maps and topographic maps belong to the category of thematic maps.
2.2 Thematic map information thematic map information is map information that highlights the characteristics of one or several natural and cultural phenomena. 3 Information classification, coding principles and methods
3.1 Information classification principles
a) This standard specifies the macro classification system of thematic map information. b) The content information of thematic maps is the main classification object, and various mapping elements such as the mathematical basis of maps, symbolization methods and map description information are appropriately considered.
c) With positioning information as the main body, a macro classification system of thematic map information is established. d) Basic geographic information is consistent with the first-level classification information of various related majors, or integrated information below the first level. e) Line classification is the main focus, and various positioning information is the basis to form a multi-level whole. At the same time, each layer of information maintains its own openness and extensibility.
3.2 Information coding principles
a) The principle of equal length, regardless of the number of levels in the classification system, the code length is equal. b) Principle of uniqueness: each code uniquely represents a certain category, a certain level or a certain specific element. At the same time, each category, each level or each specific element has a unique code, that is, a one-to-one correspondence is established between data items and codes. c) Principle of scalability: the capacity of classification and the category of data will increase or decrease with the development of the system. The coding system provides a large expansion space for this.
d) Principle of rationality: the structure of the coding system is adapted to the classification system of information, reflecting the characteristics of the objective system's hierarchy, mechanism and related connections.
e) Principle of simplicity: the structure of the code is as simple as possible and the length is as short as possible to reduce computer storage space and the error rate of data entry, while improving the efficiency of machine processing.
f) Principle of practicality: the meaning of the code is clear, reflecting the characteristics of the element to help memory. g) Principle of standardization: the structure, type and format of the code are unified to facilitate system retrieval and call. Approved by the State Administration of Quality Supervision, Inspection and Quarantine on March 5, 2001 and implemented on September 1, 2001
GB/T18317--2001
3.3 Information Classification
According to the structural characteristics of information and its role in thematic mapping, thematic map information is divided into three subject categories: geographic basis, thematic information, and additional information. There are 10 first-level subcategories as follows (see the "Classification Code Table" for details): Geographic basis
Basic geographic information
Geographic unit
Statistical unit
Thematic information
Natural conditions
Natural resources
Infrastructure
Socio-economic
Ecological environment
Additional information
Map text records
3.4 The information code
adopts a six-digit code with the following structure: XX
Third-level subcategory
Second-level subcategory
First-level subcategory
Subject category
The first digit represents the subject category, represented by a digit 1 to 9, the second digit represents the first-level subcategory, represented by a digit 1 to 9, the third and fourth digits represent the second-level subcategory, represented by two digits 01 to 99, the fifth and sixth digits represent the third-level subcategory, represented by two digits 01 to 99; the classification and codes of subcategory information of level 4 and below are specified in relevant professional standards. 4 Classification code table
Subject category
First-level subcategorySecond-level subcategoryThird-level subcategory
110101
110102
110201
110202
110203
110204
110205
Geographic basis
Basic geographic information
Geographic grid
Latitude and longitude grid
Control point
Canal 、Liang Dao
Theme category
First-level subcategory
Second-level subcategory
Third-level subcategory
110206
110301
110302
110303
110304
110305
110306
110307
110401
110402
110403|| tt | ||110602
110603
110701
110702
110 703
120101
120102
120103
120104
210101
210102
210103
210104
GB/T18317—2001
Residential area
Provincial administrative center
Special administrative region center
Region, municipal administrative center
County-level administrative center Administrative center
Town and township administrative center
Transportation and communication
Communication facilities
Energy facilities (oil and gas pipelines)
Air routes
Navigation routes
Administrative district
National level
Special administrative district
Prefecture and city level
Township and township level
Elevation points
Contour lines
Digital elevation models
Special ground features
Natural landscape areas Objects
Human features
Other features
Geographical unit
Comprehensive natural geographical unit
Environmental image type recognition unit
Terrain unit
Landform and morphology unit
Surface material unit
Statistical unit
Administrative unit
Postal division unit
Special information
Natural seriesWww.bzxZ.net
General geology
Structural geology
New tectonic
Quaternary Geology
YIKAONIKA
Subject Category
First Subcategory
Second Subcategory
Third Subcategory
210105
210106
210201
210202
210203
210301
210302
210401
210402|| tt||210403
210501
210502
210503
210504
210601
210602
210701
210702||t t||220101
220102
220103
220104
2201 05
220201
220202
220203
220301
220302
220303
220401
220402
220501
220502
GB/T18317--2001
Hydrogeology
Engineering Geology
Geomorphological Zoning|| tt||Landform type
Special landform
Climate zone
Climate type
Watershed division
Hydrological division
Water quality division
Soil division
Soil type
Soil parent material
Soil nutrients
Soil chemistry
Vegetation division
Vegetation type
Animal division
Animal distribution
Nature reserve
Natural Resources
Land Resources
Land Resource Types
Land Utilization
Land Cover
Land Planning
Land Ownership
Water Resources
Water Resource Zoning
Water Resource Utilization Zoning
Water Conservancy Project
Mineral Resources
Metallic Minerals
Non-metallic Minerals
Energy Minerals
Forest Resources
Timber Name
Economic Jilin
Marine resources
Marine mineral resources
Marine biological resources
Tourism resources
Theme category
First-level subcategory
Second-level subcategory
Third-level subcategory
220601
220602
230101
230102
230103
230104
230105
2 30201 | 0203
240204
240205
240206
240207|| tt | t||250104
250105
250106
250107
2501 08
GB/T18317—2001
Natural Scenery
Humanities
Infrastructure
Transportation
Post and Telecommunications
Social Economy
Gender Composition
Age Composition
Education Level
Occupational Structure
Population Change
Ethnic Composition
Comprehensive Economy
Service Industry
National Product Statistics||t t||National income statistics
Fiscal statistics
Foreign economic and trade
Culture and education
Medical and health care
Medical pathology
Ecological environment
Natural disasters
Ice and snow disasters
Forest fires
Landslides, mud and rocks
Diseases and insect disasters
Ecological environment changes
Thematic categories
First-level subcategories
Second-level subcategories
Third-level subcategories
250201
250202
250203
250204
250205
250206
250301
250302||tt| |250303
310101
310102
310103
310104
310301
310302
310303
3103 04
310305
310306
310307
310308
310309
310310
310311
310312| |tt||310401
310402
310403
310404
320101
320102
320103
320201||tt || 320202
320301
320302
GB/T18317—2001
Vegetation index changes
Water quality changes
Soil nutrient changes||tt| |Soil erosion
Desertification
Soil erosion
Environmental pollution
Air pollution
Water pollution
Soil pollution
Additional information
Symbol system
Point symbols
Line symbols
Surface symbols Symbol
Body symbol
Color system
Map representation method
Individual symbol method
Line symbol method
Contour line method
Range line method
Quality bottom method
Plate bottom method
Point value method
Fixed point statistical chart method
Partition statistical chart method
Hierarchical statistical graphics method
Motion line method
Grid method
Quantitative measurement of mapping indicators
Nominal scale
Ordinal scale
Interval scale
Ratio dial table
Special content description
Map text record
Mathematical basis description
Coordinate system
Scale|| tt||Description of geographic base map
Principles of base map symbolization
Principles of information summarization
Graphic calendar record
Author and compilation time
Record of data used
Also known as "point drawing method" and "point counting method"
Also known as "moving line method"
Also known as "nominal scale"
Theme category||tt| | First-level sub-category
Second-level sub-category
Third-level sub-category
320303
320401
320402
320403||tt| |320404
320501
320502
320503
GB/T18317--2001
Data (data) processing record
Map text description
Author and writing time
Data records used
Information (data) processing record
Copyright statement
Cataloguing-in-print (CIP) data
Publishing unit
Publishing time
GB/T18317-2001
People's Republic of China
National Standard
Thematic Map Information Classification and Code
GB/T18317—2001
Published by China Standards Press||tt| |No.16, Sanlihebei Street, Fuxingmenwai, Beijing
Postal Code: 100045
Tel: 6852394668517548
China Standard Press Printed by Huangdao Printing Factory Issued by Xinhua Bookstore Beijing Distribution Office
Sold by Xinhua Bookstores in various places
Format 880×12301/16 Printing sheet 3/4 Number of words 16,000 First edition in May 2001 First printing in May 2001 Print run 1-3000
Book number: 155066·1-17688
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Report phone number: (010)68533533
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