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.
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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 series 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 ResourcesbzxZ.net 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 Website: bzcbs.com Copyright reserved 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