Fragmentation Main Model

Metadata from the RGIS Metadata Repository

Identification Information

Citation
Citation Information
Originator The Nature Conservancy in New Mexico
Publication Date 2010-09-30
Publication Time 10:15:09
Title Fragmentation Main Model
Geospatial Data Presentation Form raster digital data
Publication Information
Publication Place
Publisher
Other Citation Details
Online Linkage https://gstore.unm.edu/apps/rgisarchive/datasets/7a3b4054-4233-4f57-95ab-eb21e883af5e/fragmainmodel.original.zip
Online Linkage https://gstore.unm.edu/apps/rgisarchive/datasets/7a3b4054-4233-4f57-95ab-eb21e883af5e/metadata/FGDC-STD-001-1998.xml
Online Linkage https://gstore.unm.edu/apps/rgisarchive/datasets/7a3b4054-4233-4f57-95ab-eb21e883af5e/metadata/FGDC-STD-001-1998.html
Online Linkage https://gstore.unm.edu/apps/rgisarchive/datasets/7a3b4054-4233-4f57-95ab-eb21e883af5e/metadata/ISO-19115:2003.xml
Online Linkage https://gstore.unm.edu/apps/rgisarchive/datasets/7a3b4054-4233-4f57-95ab-eb21e883af5e/metadata/ISO-19115:2003.html
Larger Work Citation
Description
Abstract The fragmentation model combines patch size and patch continuity with diversity of vegetation types per patch and rarity of vegetation types per patch. A patch was defined as an area of natural vegetation not bisected by roads, utilities, or rails. Patch size and continuity were calculated separately for forests, woodlands, shrublands, grasslands and riparian areas. Definitions of each system type can be found in the data atlas (http://allaboutwatersheds.org/groups/SAS/public/data-atlases).
Purpose This data layer is intended to identify the extent of fragmentation on forests, woodlands, and rangelands.
Time Period of Content
Single Date/Time
Calendar Date 2007
Currentness Reference publication date
Status
Progress Complete
Maintenance and Update Frequency As needed
Spatial Domain
Bounding Coordinates
West Bounding Coordinate -109.324845
East Bounding Coordinate -102.936542
North Bounding Coordinate 37.065742
South Bounding Coordinate 31.320252
Keywords
Theme
Thesaurus Fragmentation
Keyword NM Statewide Natural Resources Assessment
Keyword Fragmentation
Theme
Thesaurus ISO 19115 Topic Categories
Keyword environment
Place
Thesaurus New Mexico
Keyword New Mexico
Access Constraints None
Use Constraints All data is provided "as is." Energy Minerals and Natural Resources Department, Forestry Division makes no representation or warranty as to the completeness, accuracy or utility of any specific data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with this data
Point of Contact
Contact Information
Contact Person Primary
Contact Person
Contact Organization
Contact Organization Primary
Contact Organization EMNRD, Forestry Division
Contact Person Trent Botkin
Contact Position GIS Specialist
Contact Address
Address Type mailing and physical address
Address 1220 St. Francis Drive
City Santa Fe
State or Province NM
Postal Code 87505
Country
Contact Voice Telephone 505-476-3346
Contact Facsimile Telephone
Contact Electronic Mail Address trent.botkin@state.nm.us
Hours of Service
Contact Instructions
Data Set Credit The Nature Conservancy in New Mexico
Native Data Set Environment Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500
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Data Quality Information

Attribute Accuracy Report
Report Unknown
Quantitative Attribute Accuracy Assessment
Attribute Accuracy Value
Attribute Accuracy Explanation
Logical Consistency Report Data set in raster format
Completeness Report The purpose of the model is to represent the current extent of fragmentation of forests, woodlands and rangelands (Map 8). The fragmentation model combines patch size and patch continuity with diversity of vegetation types per patch and rarity of vegetation types per patch. A patch was defined as an area of natural vegetation not bisected by roads, utilities, or rails. Patch size and continuity were calculated separately for forests, woodlands, shrublands, grasslands and riparian areas. Definitions of each system type can be found in the Volume II - Data Atlases (http://allaboutwatersheds.org/groups/SAS/public/data-atlases). The model should be considered a baseline of current habitat fragmentation conditions. Large, continuous patches with high diversity and variety were mapped for 7.3 million acres of land. These areas are the least fragmented and of the highest priority for protection. As stated above, this model focuses on current habitat fragmentation conditions. It does not address trends or connectivity measures of habitat fragmentation.
Lineage
Source Information
Source Citation
Citation Information
Originator Unknown
Publication Date 2010
Publication Time
Title Volume II - Data Atlases: Methods and Descriptions of Core Data Models Used in the Development of the Statewide Natural Resource Assessment
Geospatial Data Presentation Form atlas
Publication Information
Publication Place
Publisher
Other Citation Details
Online Linkage http://allaboutwatersheds.org/groups/SAS/public/data-atlases
Source Scale Denominator 9999
Type of Source Media Unknown
Source Time Period of Content
Source Currentness Reference publication date
Source Citation Abbreviation Unknown
Source Contribution Unknown
Process Step
Process Description Create a statewide fragmentation layer by combining forest continuity, forest patch size, woodland continuity, woodland patch size, shrub/scrub continuity, shrub/scrub patch size, grassland continuity, grassland patch size, riparian continuity, riparian patch size, diversity of vegetation types per patch, and rarity of vegetation types per patch in an equal weight overlay. Final priority classes and values for statewide fragmentation model are: Low = 1-4; Low/Medium = 5-6; Medium = 7-8; Medium/High = 9-11; High = 12-15 Combine forest continuity, forest patch size, woodland continuity, woodland patch size, shrub/scrub continuity, shrub/scrub patch size, grassland continuity, grassland patch size, riparian continuity, riparian patch size, diversity of vegetation types per patch, and rarity of vegetation types per patch. Patches were defined using SWReGAP landscover data. SA mask layer (forest, riparian, grassland, shrub-scrub, woodland) was derived using the crosswalk shown in data atlas at http://allaboutwatersheds.org/groups/SAS/public/DataAtlases.pdf/view and used to extract forest, riparian, grassland, shrub-scrub, woodland patches from the vegetated region group layer.
Process Date 2009
Process Time
Process Contact
Contact Information
Contact Person Primary
Contact Person
Contact Organization
Contact Organization Primary
Contact Organization The Nature Conservancy in New Mexico
Contact Person Lara Wood Miller
Contact Position GIS Manager
Contact Address
Address Type mailing and physical address
Address 212 East Marcy St, Ste 200
City Santa Fe
State or Province NM
Postal Code 87501
Country
Contact Voice Telephone 505-988-3867
Contact Facsimile Telephone
Contact Electronic Mail Address
Hours of Service
Contact Instructions
Process Step
Process Description Metadata imported.
Process Date 2010-03-30
Process Time 14:06:45
Process Contact
Process Step
Process Description Dataset copied.
Process Date 2010-06-15
Process Time 16:23:22
Process Contact
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Spatial Data Organization Information

Indirect Spatial Reference Method United States
Direct Spatial Reference Method Raster
Raster Object Information
Raster Object Type Grid Cell
Row Count 21000
Column Count 18949
Vertical Count 1
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Spatial Reference Information

Spatial Reference
Name North American Datum of 1983
Code EPSG:4269
URL http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269
Spatial Reference
Name Geodetic Reference System 80
Code EPSG:7019
URL http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:ellipsoid:EPSG::7019
Spatial Reference
Name Universal Transverse Mercator, 13
Code EPSG:26713
URL http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::26713
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Entity and Attribute Information

Detailed Description
Entity Type
Entity Type Labelmain_model_ff.vat
Entity Type Definition Fragmentation
Entity Type Definition Source Statewide Fragmentation layer
Attribute
Attribute Label Rowid
Attribute Definition Internal feature number.
Attribute Definition Source ESRI
Attribute Domain Values
Unrepresentable Domain Sequential unique whole numbers that are automatically generated.
Attribute
Attribute Label VALUE
Attribute Definition unique combine grid value
Attribute Definition Source automatically assigned value when grids combined
Attribute Domain Values
Unrepresentable Domain Sequential unique whole numbers that are automatically generated.
Attribute
Attribute Label COUNT
Attribute Definition count of pixels
Attribute Definition Source automatically generated value
Attribute Domain Values
Unrepresentable Domain Sequential unique whole numbers that are automatically generated.
Attribute
Attribute Label ACRES
Attribute Definition Acres
Attribute Definition Source Count*900*.000247
Attribute Domain Values
Range Domain
Range Domain Minimum 0.22
Range Domain Maximum 3400728
Attribute Units of Measure acres
Attribute
Attribute Label MAIN_RECLASS
Attribute Definition Priority class for fragmentation model
Attribute Definition Source Natural breaks classification of sum of all inputs reclassified into 1 to 5 with 1 indicating highly fragmented, least diverse patches and 5 indicating least fragmented, most diverse patches
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value 1
Enumerated Domain Value Definition Low Priority
Enumerated Domain Value Definition Source 1 = least diverse most fragmented patches and 5 indicates most diverse, least fragmented patches
Enumerated Domain Value 2
Enumerated Domain Value Definition low/medium priority 1 = least diverse most fragmented patches and 5 indicates most diverse, least fragmented patches
Enumerated Domain Value Definition Source 1 = least diverse most fragmented patches and 5 indicates most diverse, least fragmented patches
Enumerated Domain Value 3
Enumerated Domain Value Definition medium priority 1 = least diverse most fragmented patches and 5 indicates most diverse, least fragmented patches
Enumerated Domain Value Definition Source 1 = least diverse most fragmented patches and 5 indicates most diverse, least fragmented patches
Enumerated Domain Value 4
Enumerated Domain Value Definition medium/high priority 1 = least diverse most fragmented patches and 5 indicates most diverse, least fragmented patches
Enumerated Domain Value Definition Source 1 = least diverse most fragmented patches and 5 indicates most diverse, least fragmented patches
Enumerated Domain Value 5
Enumerated Domain Value Definition high priority 1 = least diverse most fragmented patches and 5 indicates most diverse, least fragmented patches
Enumerated Domain Value Definition Source 1 = least diverse most fragmented patches and 5 indicates most diverse, least fragmented patches
Attribute
Attribute Label MAIN_SUM
Attribute Definition Combined sum of patch continuity, patch size, patch diversity (variety), and patch rarity
Attribute Definition Source Sum of all fragmentation inputs (patch size, patch continuity, patch diversity, and patch rarity) with 1 indicating highly fragmented, least diverse patches and 15 indicating least fragmented, most diverse patches
Attribute Domain Values
Range Domain
Range Domain Minimum 1
Range Domain Maximum 15
Attribute Units of Measure Sum of all fragmentation inputs (patch size, patch continuity, patch diversity, and patch rarity) with 1 indicating highly fragmented, least diverse patches and 15 indicating least fragmented, most diverse patches
Attribute
Attribute Label CONTINUITY_RE
Attribute Definition Patch Continuiity
Attribute Definition Source SWReGAP landcover (2004) was reclassified to two classes vegetated (1) and non-vegetated (0) classes. A combined Tiger roads, Tiger Rails, and utilities raster layer was used to reclassify vegetated areas to non - vegetated. The resulting binary layer had 1 = vegetated, 0=non-vegetated. Region Group was used to assign a unique number to each continuous vegetated region (four adjacent cells used for grouping). A mask layer (forest, riparian, grassland, shrub-scrub, woodland) was derived using the crosswalk shown in data atlas at http://allaboutwatersheds.org/groups/SAS/public/DataAtlases.pdf/view and used to extract forest, riparian, grassland, shrub-scrub, woodland patches from the vegetated region group layer. Zonal geometry was used to calculate the area and perimeter of each forest, riparian, grassland, shrub-scrub, or woodland region. The circularity ratio determined for each region using the formula; 4pi * area / perimeter2 (Selkirk. KE, 1982); then continuity = LOG10 (circularity ratio * Area), where larger values mean greater areas of continuous riparian areas, smaller values represent smaller areas with more fragmentation and edge. The continuity values were reclassified into 5 classess 1 indicating small areas with more fragmentation and edge. For continuity values for each system type see data atlas http://allaboutwatersheds.org/groups/SAS/public/DataAtlases.pdf/view
Attribute Domain Values
Range Domain
Range Domain Minimum 1
Range Domain Maximum 5
Attribute Units of Measure continuity ranking
Attribute
Attribute Label PATCH_SIZE_RE
Attribute Definition Size of Patch
Attribute Definition Source SWReGAP landcover (2004) was reclassified to two classes vegetated (1) and non-vegetated (0) classes. A combined Tiger roads, Tiger Rails, and utilities raster layer was used to reclassify vegetated areas to non - vegetated. The resulting binary layer had 1 = vegetated, 0=non-vegetated. Region Group was used to assign a unique number to each continuous vegetated region (four adjacent cells used for grouping). A mask layer (forest, riparian, grassland, shrub-scrub, woodland) was derived using the crosswalk shown in data atlas at http://allaboutwatersheds.org/groups/SAS/public/DataAtlases.pdf/view and used to extract forest, riparian, grassland, shrub-scrub, woodland patches from the vegetated region group layer. Zonal geometry was used to calculate the area and perimeter of each forest, riparian, grassland, shrub-scrub, or woodland region. For size values for each system type see data atlas http://allaboutwatersheds.org/groups/SAS/public/DataAtlases.pdf/view
Attribute Domain Values
Range Domain
Range Domain Minimum 1
Range Domain Maximum 5
Attribute Units of Measure patch size ranking
Attribute
Attribute Label VARIETY_RE
Attribute Definition Gives higher value to more diverse patches
Attribute Definition Source SWReGAP landcover (2004) was reclassified to two classes vegetated (1) and non-vegetated (0) classes. A combined Tiger roads, Tiger Rails, and utilities raster layer was used to reclassify vegetated areas to non - vegetated. The resulting binary layer had 1 = vegetated, 0=non-vegetated. Region Group was used to assign a unique number to each continuous vegetated region (four adjacent cells used for grouping. Zonal statistics was used to calculate the variety or the number of vegetation types per patch. The variety calculation was normalized using an average variety calculation derived in Access (see table below). The resulting normalized variety table was joined to the Region Group layer and classified into three classes where 1 = 1 to 2.3 avg # landcover types; 3 = 2.4 to 2.67 avg # of landcover types; 5 = 2.68 to 5 avg # of landcover types
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value 1
Enumerated Domain Value Definition Average number landcover
Enumerated Domain Value Definition Source 1 = 1 to 2.3 avg # landcover types; 3 = 2.4 to 2.67 avg # of landcover types; 5 = 2.68 to 5 avg # of landcover types
Enumerated Domain Value 3
Enumerated Domain Value Definition Average number of landcover
Enumerated Domain Value Definition Source 1 = 1 to 2.3 avg # landcover types; 3 = 2.4 to 2.67 avg # of landcover types; 5 = 2.68 to 5 avg # of landcover types
Enumerated Domain Value 5
Enumerated Domain Value Definition average number lancover types
Enumerated Domain Value Definition Source 1 = 1 to 2.3 avg # landcover types; 3 = 2.4 to 2.67 avg # of landcover types; 5 = 2.68 to 5 avg # of landcover types
Attribute
Attribute Label RARITY_RE
Attribute Definition Gives higher value to patches important for conserving rare habitat.
Attribute Definition Source SWReGAP landcover (2004) was reclassified to two classes vegetated (1) and non-vegetated (0) classes. A combined Tiger roads, Tiger Rails, and utilities raster layer was used to reclassify vegetated areas to non - vegetated.. The resulting binary layer had 1 = vegetated, 0=non-vegetated. Region Group was used to assign a unique number to each continuous vegetated region (four adjacent cells used for grouping). The region group layer was then combined with the SWReGAP vegetation layer and its resulting table was imported into Access. For each patch, the percent of total for each landcover type was calculated using the SQL expression below. Agricultural, recently burned, recently chained, recently mined, and non-specific barren lands were excluded from the calculation. The maximum percentages per patch were exported and joined to the Region Group layer and grouped into five classes where 1 = .001 to 5% of a vegetation type is found in patch; 2 = 5.01 to 10% of a vegetation type is found in patch; 3 = 10.1 to 30% of a vegetation type is found in patch; 4 = 30.1 to 50% of a vegetation type is found in patch; 5 = 50.1 to 100% of a vegetation type is found in patch. 1 = .001 to 5% of a vegetation type is found in patch; 2 = 5.01 to 10% of a vegetation type is found in patch; 3 = 10.1 to 30% of a vegetation type is found in patch; 4 = 30.1 to 50% of a vegetation type is found in patch; 5 = 50.1 to 100% of a vegetation type is found in patch
Attribute Domain Values
Range Domain
Range Domain Minimum 1
Range Domain Maximum 5
Attribute Units of Measure rarity ranking
Overview Description
Entity and Attribute Overview The fragmentation model combines patch size and patch continuity with diversity of vegetation types per patch and rarity of vegetation types per patch. A patch was defined as an area of natural vegetation not bisected by roads, utilities, or rails. Patch size and continuity were calculated separately for forests, woodlands, shrublands, grasslands and riparian areas. Definitions of each system type can be found in the data atlas (http://allaboutwatersheds.org/groups/SAS/public/data-atlases).The data of the New Mexico Statewide Natural Resources Assessment was organized around eight core data themes suggested in the 2008 Farm Bill. The eight core data themes include: Fish and Wildlife Habitat (Biodiversity), Development Risk (Potential), Economic Development (Potential), Forest Health, Fragmentation, Green Infrastructure, Water Quality and Supply, and Wildfire Risk. For each core data theme, models were developed and served as the foundation for identifying the priority landscapes within New Mexico for the Statewide Strategy and Response Plan. While the 2008 Farm Bill provided the framework for the models developed, the Forest and Watershed Health Plan provided the vision for the content of each model and placed emphasis on expanding the scope to include all resources, not just forest resources. Technical teams, comprised of subject and technical experts from agencies and other partners, served as the advisors in the development each of the data models. Individuals on the technical teams range from environmental organizations, private industry, federal, state, and municipal partners, private landowners, conservation organizations, and citizens groups. One technical team was formed for each of the eight core data models. The spatial layers are housed on the New Mexico Resource Geographic Information System Program (RGIS), a cooperative program between the University of New Mexico and the New Mexico Information Technology Commission and can be found at http://rgis.unm.edu/data_entry.cfm
Entity and Attribute Detail Citation Detailed information on the entity, attributes and source can be found in Volume II - Data Atlases: Methods and Descriptions of Core Data Models Used in the Development of the Statewide Natural Resource Assessment. It is also available online at the All About Watersheds portal (http://allaboutwatersheds.org/groups/SAS/public/data-atlases).
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Distribution Information

Distributor
Resource Description Downloadable Data
Distribution Liability The material on this site is made available as a public service. Maps and data are to be used for reference purposes only and the Earth Data Analysis Center (EDAC), Resource Geographic Information System (RGIS) and The University of New Mexico are not responsible for any inaccuracies herein contained. No responsibility is assumed for damages or other liabilities due to the accuracy, availability, use or misuse of the information herein provided. Unless otherwise indicated in the documentation (metadata) for individual data sets, information on this site is public domain and may be copied without permission; citation of the source is appreciated.
Standard Order Process
Digital Form
Digital Transfer Information
Format Name ZIP
Transfer Size 68
Digital Transfer Option
Online Option
Computer Contact Information
Network Address
Network Resource Name https://gstore.unm.edu/apps/rgisarchive/datasets/7a3b4054-4233-4f57-95ab-eb21e883af5e/fragmainmodel.original.zip
Access Instructions Download from Resource Geographic Information System (RGIS) at http://rgis.unm.edu.
Fees None. The files are available to download from Resource Geographic Information System (RGIS) (http://rgis.unm.edu).
Ordering Instructions Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
Custom Order Process Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
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Metadata Reference Information

Metadata Date 2024-05-05
Metadata Review Date
Metadata Future Review Date
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Contact Information
Contact Person Primary
Contact Person
Contact Organization
Contact Organization Primary
Contact Organization Earth Data Analysis Center
Contact Person
Contact Position Clearinghouse Manager
Contact Address
Address Type mailing and physical address
Address MSC01 1110
Address 1 University of New Mexico
City Albuquerque
State or Province NM
Postal Code 87131-0001
Country USA
Contact Voice Telephone 505-277-3622 ext. 230
Contact Facsimile Telephone 505-277-3614
Contact Electronic Mail Address clearinghouse@edac.unm.edu
Hours of Service 0800 - 1700 MT, M-F -7 hours GMT
Contact Instructions
Metadata Standard Name FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version FGDC-STD-001-1998
Metadata Time Convention
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Metadata Security Information
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Security Classification
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