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Vegetation Features - Points (Digital Map Database of China)
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Identification Information
- Citation
- Originator
- National Bureau of Surveying and Mapping (NBSM)
- Originator
- National Geomatics Centre of China
- Originator
- Environmental Systems Research Institute (ESRI)
- Publication Date
- 1998
- Title
- Vegetation Features - Points (Digital Map Database of China)
- Geospatial Data Presentation Form
- vector digital data
- Publication Information
- Publication Place
- Beijing, PRC
- Publisher
- National Bureau of Surveying and Mapping (NBSM)
- Online Linkage
- https://hgl.harvard.edu/catalog/harvard-archvegpt
- Abstract
- This coverage contains vegetation features throughout China, represented by points. Vegetation polygons less than 1.5 square millimeters on the source map are represented as points. These features include mangrove forests, economically exploited forests (bamboo, coffee, etc.), shrub and grassland areas. Not all vegetation types found in China are represented in this coverage.
- Purpose
- These data are intended for researchers, students, and policy makers for reference and mapping purposes, and to provide users with geographic data for cartography, environmental monitoring, management and impact analysis, land use and economic analysis and other types of geographic analysis. Data can be used with geographic information systems (GIS) software to display and analyze information on land cover and associated areas of interest, or to provide a basemap to support graphical overlays and analysis with other spatial data.
- Temporal Extent
- Currentness Reference
- ground condition
- Time Period
- Beginning
- 19800101
- End
- 19950101
- Bounding Box
- West
- 77.298248
- East
- 133.048965
- North
- 50.990059
- South
- 20.082094
- ISO Topic Category
- biota
- environment
- Theme Keyword
- Vegetation
- Land cover
- Environment
- Theme Keyword Thesaurus
- LCSH
- Place Keyword
- China
- People's Republic of China
- Place Keyword Thesaurus
- LCSH
- Temporal Keyword
- Access Restrictions
- Access is granted to licensee (Harvard University) only.
- Use Restrictions
- For non-commercial use only.
- Status
- Complete
- Maintenance and Update Frequency
- Unknown
- Point of Contact
- Contact Organization
- National Bureau of Surveying and Mapping (NBSM)
- Delivery Point
- 9 Sanlihe Road, Baiwanzhuang
- City
- Beijing
- Postal Code
- 100830
- Country
- People's Republic of China
- Contact Telephone
- 86-10-68346614
- Contact Facsimile Telephone
- 86-10-68311564
- Contact Electronic Mail Address
- fanbsm@public.bta.net.cn
- Native Data Set Environment
- Microsoft Windows NT Version 4.0 (Build 1381) Service Pack 6; ESRI ArcCatalog 8.2.0.700
- Data Quality Information
- Attribute Accuracy Report
- The names of populated places, mountains and streams in the DMDC are represented by both Chinese characters and Pinyin. Generally the NAME item is used to store Chinese characters and the PYNAME item stores the Pinyin in the attribute tables. The features of administrative areas, culture, hydrography, hypsography, land cover and ocean have annotations in the DMDC which can be represented by both Chinese characters and Pinyin. These are annotated as 'CH' and 'PY' respectively. NOTE: Chinese characters may not display properly on machines without the proper character sets installed. Encoding of the Chinese characters is GBK Simplified.
- Logical Consistency Report
- Coincident Features: There are coincident features in the DMDC datalayers. For example, streams and coastlines coincide with boundaries. Minimum Areal Features: When the area of a polygon is less than 1.5 square millimeters on the 1:1,000,000-scale map, it is represented as a point feature and its code remains the same.
- Horizontal Positional Accuracy Report
- Line Connectivity and Polygon Closure: Some linear and polygonal features that do not contain the necessary connectivity in the original 1:1,000,000-scale map are connected in the DMDC. For example, roads are connected in DMDC when they are split by symbols or place names on the map, and double-line streams are closed in DMDC where they meet the ocean. Edgematching: Generally features along tile edges have been matched. However, in some cases no edgematching was attempted because the original 1:1,000,000-scale maps were compiled in different periods and severe feature offsets do occur. For example, this offset can be found in some vegetation features and 100-meter supplementary contours.
- Lineage
- Source
- Originator
- National Bureau of Surveying and Mapping (NBSM)
- Title
- 1:1,000,000 Scale Topographic Map of China
- Series Information
- Series Name
- National Essential Topographic Map Series
- Publication Information
- Publication Place
- Beijing, PRC
- Publisher
- National Bureau of Surveying and Mapping (NBSM)
- Other Citation Details
- Each map sheet covers six degrees longitude by four degrees latitude. The 1:1,000,000-scale map series is the smallest National Essential Topographic Map Series in China, which comprehensively depicts the natural, social and economic situation in China and forms a relevant geographic base for many uses.
- Source Scale Denominator
- 1000000
- Type of Source Media
- paper
- Source
- Publication Date
- Unknown
- Title
- Categories and Codes of National Land Information
- Type of Source Media
- paper
- Contribution
- Nationally standardized codes for features described in this database
- Spatial Data Organization Information
- Direct Spatial Reference Method
- Vector
- Point and Vector Object Information
- SDTS Terms Description
- SDTS Point and Vector Object Type
- Entity point
- Point and Vector Object Count
- 1338
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Geographic
- Latitude Resolution
- 0.000000
- Longitude Resolution
- 0.000000
- Geographic Coordinate Units
- Decimal degrees
- Geodetic Model
- Horizontal Datum Name
- D_Krasovsky_1940
- Ellipsoid Name
- Krasovsky_1940
- Semi-major Axis
- 6378245.000000
- Denominator of Flattening Ratio
- 298.300000
- Vertical Coordinate System Definition
- Altitude System Definition
- Altitude Datum Name
- Huanghai Sea-level Datum (1956)
- Altitude Resolution
- 1.000000
- Altitude Encoding Method
- Explicit elevation coordinate included with horizontal coordinates
- Entity and Attribute Information
- Entity Type
- Entity Type Label
- Point Vegetaion Features
- Entity Type Definition
- ESRI Shapefile
- Entity Type Definition Source
- ESRI
- Attributes
- AREA
- Internally calculated feature area in map units.
- Definition Source
- ESRI
- Attribute Value Accuracy
- Value will always be zero.
- Attribute Value Accuracy Explanation
- Point features have no area.
- PERIMETER
- Internally calculated feature perimeter in map units.
- Definition Source
- ESRI
- Attribute Value Accuracy
- Value will always be zero.
- Attribute Value Accuracy Explanation
- Point features have no perimeter.
- VEGLK_
- Internal Feature Identifier.
- Definition Source
- ESRI
- VEGLK_ID
- Internal Feature Identifier.
- Definition Source
- ESRI
- GEO_CODE
- Vegetation type code
- 83010
- Forest (not to scale)
- 83015
- Economic forest (coffee, rubber, tea, bamboo, tobacco, hemp)
- 83020
- Shrub (not to scale)
- 84000
- Grassland (not to scale)
- Definition Source
- NBSM
- SHAPE
- The SHAPE attribute defines the vector data as either a point, polyline, or polygon.
- Point
- A point represents a single location, usually identified by longitude-latitude, on the earth's surface
- Definition Source
- ESRI
- SHAPE.FID
- Internal feature number. (Sequential unique whole numbers that are automatically generated.)
- Definition Source
- ESRI
- Distribution Information
- Format Name
- Shape
- Distributor
- Harvard Geospatial Library Team
- Online Access
- http://hgl.harvard.edu
- Name
- Metadata Reference Information
- Metadata Date
- 20020904
- Metadata Contact
- Contact Information
- Contact Organization Primary
- Contact Organization
- Harvard Geospatial Library
- Contact Person
- Geospatial Resources Cataloger
- Contact Address
- Address
- Office of Information Systems
- Address
- 1280 Massachusetts Avenue
- City
- Cambridge
- State or Province
- MA
- Postal Code
- 02138
- Country
- USA
- Contact Voice Telephone
- 617-495-2417
- Contact Facsimile Telephone
- 617-496-0440
- Contact Electronic Mail Address
- hgl_ref@hulmail.harvard.edu
- Metadata Standard Name
- FGDC Content Standards for Digital Geospatial Metadata
- Metadata Standard Version
- FGDC-STD-001-1998
- Metadata Extensions
- Online Linkage
- http://www.esri.com/metadata/esriprof80.html
- Profile Name
- ESRI Metadata Profile
