Fragmentation Main Model
Metadata from the RGIS Metadata Repository
Identification Information
- Citation
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- Citation Information
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- 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
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- 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
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- 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
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- Single Date/Time
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- Calendar Date 2007
- Currentness Reference publication date
- Status
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- Progress Complete
- Maintenance and Update Frequency As needed
- Spatial Domain
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- Bounding Coordinates
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- West Bounding Coordinate -109.324845
- East Bounding Coordinate -102.936542
- North Bounding Coordinate 37.065742
- South Bounding Coordinate 31.320252
- Keywords
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- Theme
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- Thesaurus Fragmentation
- Keyword NM Statewide Natural Resources Assessment
- Keyword Fragmentation
- Theme
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- Thesaurus ISO 19115 Topic Categories
- Keyword environment
- Place
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- 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
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- Contact Information
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- Contact Person Primary
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- Contact Person
- Contact Organization
- Contact Organization Primary
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- Contact Organization EMNRD, Forestry Division
- Contact Person Trent Botkin
- Contact Position GIS Specialist
- Contact Address
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- 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
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- Report Unknown
- Quantitative Attribute Accuracy Assessment
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- 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
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- Source Information
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- Source Citation
-
- Citation Information
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- 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
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- 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
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- Contact Information
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- Contact Person Primary
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- Contact Person
- Contact Organization
- Contact Organization Primary
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- Contact Organization The Nature Conservancy in New Mexico
- Contact Person Lara Wood Miller
- Contact Position GIS Manager
- Contact Address
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- 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
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- Process Description Metadata imported.
- Process Date 2010-03-30
- Process Time 14:06:45
- Process Contact
- Process Step
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- 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
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- Raster Object Type Grid Cell
- Row Count 21000
- Column Count 18949
- Vertical Count 1
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Spatial Reference Information
- Spatial Reference
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- 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
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- 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
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- 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
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- Entity Type
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- Entity Type Labelmain_model_ff.vat
- Entity Type Definition Fragmentation
- Entity Type Definition Source Statewide Fragmentation layer
- Attribute
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- Attribute Label Rowid
- Attribute Definition Internal feature number.
- Attribute Definition Source ESRI
- Attribute Domain Values
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- Unrepresentable Domain Sequential unique whole numbers that are automatically generated.
- Attribute
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- Attribute Label VALUE
- Attribute Definition unique combine grid value
- Attribute Definition Source automatically assigned value when grids combined
- Attribute Domain Values
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- Unrepresentable Domain Sequential unique whole numbers that are automatically generated.
- Attribute
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- Attribute Label COUNT
- Attribute Definition count of pixels
- Attribute Definition Source automatically generated value
- Attribute Domain Values
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- Unrepresentable Domain Sequential unique whole numbers that are automatically generated.
- Attribute
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- Attribute Label ACRES
- Attribute Definition Acres
- Attribute Definition Source Count*900*.000247
- Attribute Domain Values
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- Range Domain
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- Range Domain Minimum 0.22
- Range Domain Maximum 3400728
- Attribute Units of Measure acres
- Attribute
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- 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
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- Enumerated Domain
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- 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
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- 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
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- 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
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- 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
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- Range Domain Minimum 1
- Range Domain Maximum 5
- Attribute Units of Measure continuity ranking
- Attribute
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- 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
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- 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
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- Enumerated Domain
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- 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
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- 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
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- 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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- Resource Description Downloadable Data
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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.
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- 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.
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Metadata Reference Information
- Metadata Date 2024-05-05
- Metadata Review Date
- Metadata Future Review Date
- Metadata Contact
-
- 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
- Metadata Access Constraints
- Metadata Use Constraints
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- Security Classification System
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