Name: Green Infrastructure Gaps 2010

Display Field: PHYSIONAME

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Description: These data provide restoration value rankings and ecological attributes associated with green infrastructure gaps. The Green Infrastructure Assessment was developed to provide decision support for Maryland's Department of Natural Resources land conservation programs. Methods used to identify and rank green infrastructure lands are intended solely for this use. Other applications are at the discretion of the user. The Maryland Department of Natural Resources is not responsible for any inaccuracies in the data and does not necessarily endorse any uses or products derived from the data other than those for which the data were originally intended. Maryland's green infrastructure is a network of undeveloped lands that provide the bulk of the state's natural support system. Ecosystem services, such as cleaning the air, filtering water, storing and cycling nutrients, conserving soils, regulating climate, and maintaining hydrologic function, are all provided by the existing expanses of forests, wetlands, and other natural lands. These ecologically valuable lands also provide marketable goods and services, like forest products, fish and wildlife, and recreation. The Green Infrastructure serves as vital habitat for wild species and contributes in many ways to the health and quality of life for Maryland residents. To identify and prioritize Maryland's green infrastructure, we developed a tool called the Green Infrastructure Assessment (GIA). The GIA was based on principles of landscape ecology and conservation biology, and provides a consistent approach to evaluating land conservation and restoration efforts in Maryland. It specifically attempts to recognize: a variety of natural resource values (as opposed to a single species of wildlife, for example), how a given place fits into a larger system, the ecological importance of natural open space in rural and developed areas, the importance of coordinating local, state and even interstate planning, and the need for a regional or landscape-level view for wildlife conservation. The GIA identified two types of important resource lands - "hubs" and "corridors." Gaps are developed, agricultural, mined, or cleared lands within the Green infrastructure network that could be targeted for restoration. These were evaluated for their potential restoration to forest, wetland, or riparian buffers, by considering watershed condition, landscape position, local features, ownership, and programmatic considerations. Gaps with hydric soils were probably once wetlands, and could be restored as such. Reforestation of gaps along streams would not only benefit wildlife, but improve water quality and stream stability. Please refer to the Green Infrastructure web site (https://dnr.maryland.gov/land/Pages/Green-Infrastructure.aspx) for additional information.

Copyright Text: MD iMAP, DNR

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Spatial Reference: 102100  (3857)

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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• PHYSIONAME ( type: esriFieldTypeString, alias: Physiographic Region, length: 20 )
• TOTAL_AC ( type: esriFieldTypeDouble, alias: Total Area of Gap )
• CWAP_SCORE ( type: esriFieldTypeSmallInteger, alias: Watershed Restoration Rank )
• WS_RARE_FM ( type: esriFieldTypeSmallInteger, alias: Watershed Rare Fish and Mussel Rank )
• BROOKTROUT ( type: esriFieldTypeSmallInteger, alias: Watershed Brook Trout Presence )
• IMPERVSURF ( type: esriFieldTypeSmallInteger, alias: Impervious Surface )
• PCTNAT_AVG ( type: esriFieldTypeDouble, alias: Percent Natural Cover )
• ELEMENT_WT ( type: esriFieldTypeSmallInteger, alias: Landscape Importance )
• HUBCORRANK ( type: esriFieldTypeSmallInteger, alias: Ecological Rank of Hub and Corridor )
• CORR_BREAK ( type: esriFieldTypeSmallInteger, alias: Corridor Break )
• PCTOF_GAPS ( type: esriFieldTypeDouble, alias: Relative gain to hub or corridor if gap is restored )
• PCT_PER_AC ( type: esriFieldTypeDouble, alias: Relative gain if gap is restored normalized by gap area )
• INT_OR_EXT ( type: esriFieldTypeSmallInteger, alias: Is gap interior or exterior )
• IF_GAIN_AC ( type: esriFieldTypeDouble, alias: Gain in Interior Forest )
• RIPZONE_AC ( type: esriFieldTypeDouble, alias: Gap Area in Riparian Zone )
• MEANFT2STR ( type: esriFieldTypeInteger, alias: Mean Proximity to Streams )
• STRNODEDIS ( type: esriFieldTypeInteger, alias: Mean Proximity to Stream Source or Junctions )
• STREAM_ORD ( type: esriFieldTypeSmallInteger, alias: Stream Order )
• HERITAGE ( type: esriFieldTypeSmallInteger, alias: Proximity to Natural Heritage Elements )
• HI_EROD_AC ( type: esriFieldTypeDouble, alias: Highly Erodible Soil )
• SUM_SLOPE ( type: esriFieldTypeInteger, alias: Sum of Slopes )
• HYDSOIL_AC ( type: esriFieldTypeDouble, alias: Hydric Soils )
• WETBUF_AVG ( type: esriFieldTypeDouble, alias: Adjacency to Intact Unmodified Wetlands )
• CWAP_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Watershed Score )
• RAREFM_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Rare Fish and Mussel Score )
• BRKTRT_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Brook Trout Presence )
• IMPSURFPCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Impervious Surface )
• PCTNAT_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Percent Natural Cover )
• ELEMENTPCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Landscape Importance )
• HUBCOR_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Ecological Ranking )
• CORBRK_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Gap Breaks in Corridor )
• RELGAINPCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Relative Gain to Landscape Element )
• INTERIOPCT ( type: esriFieldTypeDouble, alias: Physiographic Rank if Gap is Interior or Exterior )
• SIZE_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Gap Area )
• INTFOR_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Gain in Interior Forest )
• RIPZONEPCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Percent Gap Area in Riparian Zone )
• STRORD_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Stream Order )
• HERITAGPCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Proximity to Natural Heritage Elements )
• HIERODEPCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Percent Gap Area with Highly Erodible Soil )
• SLOPE_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Mean Slope )
• HYDRIC_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Percent with Hydric Soils )
• WETBUF_PCT ( type: esriFieldTypeDouble, alias: Physiographic Rank for Mean Adjacency to Intact Unmodified Wetlands )
• LCRESTEASE ( type: esriFieldTypeDouble, alias: Ease of Restoration by Land Cover Type )
• PUB_OR_PVT ( type: esriFieldTypeDouble, alias: Public Ownership or Existing Easement )
• PUBLNDDIST ( type: esriFieldTypeInteger, alias: Proximity to Public Lands )
• AVGFT2RDS ( type: esriFieldTypeInteger, alias: Proximity to Roads )
• NUMPARCELS ( type: esriFieldTypeSmallInteger, alias: Number of Property Owners )
• LAND_VALUE ( type: esriFieldTypeInteger, alias: Mean Unimproved Land Value )
• PUBLIC_OWN ( type: esriFieldTypeSmallInteger, alias: Is the Majority In Existing Public Ownership )
• FOREST_LEG ( type: esriFieldTypeSmallInteger, alias: Is Majority in a Forest Legacy Area )
• RURAL_LEG ( type: esriFieldTypeSmallInteger, alias: Is Majority in a Rural Legacy Area )
• CONS_ZONED ( type: esriFieldTypeSmallInteger, alias: Is Majority in Area Zoned for Conservation )
• PRICAT1SHD ( type: esriFieldTypeSmallInteger, alias: Is Majority in a CWAP Priority Category 1 Watershed )
• SELCAT3SHD ( type: esriFieldTypeSmallInteger, alias: Is Majority in a CWAP Select Category 3 Watershed )
• RESVR_PROP ( type: esriFieldTypeSmallInteger, alias: Is Majority in a Water Supply Reservoir Property )
• DRINK_SHED ( type: esriFieldTypeSmallInteger, alias: Is Majority in a Watershed Upstream from Drinking Supply )
• USE3_SHED ( type: esriFieldTypeSmallInteger, alias: Is Majority in a Watershed with Natural Trout Waters )
• USE4_SHED ( type: esriFieldTypeSmallInteger, alias: Is Majority in a Watershed with Recreational Trout Waters )
• SCENIC_RIV ( type: esriFieldTypeSmallInteger, alias: Is Majority in a Scenic or Wild River View )
• GREENWAY ( type: esriFieldTypeSmallInteger, alias: Is Majority in an Existing or Potential Greenway )
• DISTSCHOOL ( type: esriFieldTypeDouble, alias: Distance to Nearest School )
• FORECORANK ( type: esriFieldTypeInteger, alias: Ecological Benefit Rank )
• FORECO_PCT ( type: esriFieldTypeDouble, alias: Ecological Benefit Percentile )
• FORCOSTRNK ( type: esriFieldTypeInteger, alias: Potential Cost Rank for Reforestation )
• FORCOSTPCT ( type: esriFieldTypeDouble, alias: Potential Cost Percentile for Reforestation )
• FORPROGRNK ( type: esriFieldTypeInteger, alias: Programmatic Ease Rank for Reforestation )
• FORPROGPCT ( type: esriFieldTypeDouble, alias: Programmatic Ease Percentile for Reforestation )
• WETECORANK ( type: esriFieldTypeInteger, alias: Ecological Benefit Rank for Wetland Restoration )
• WETECO_PCT ( type: esriFieldTypeSmallInteger, alias: Ecological Benefit Percentile for Wetland Restoration )
• WETCOSTRNK ( type: esriFieldTypeInteger, alias: Potential Cost Rank for Wetland Reforestation )
• WETCOSTPCT ( type: esriFieldTypeSmallInteger, alias: Potential Cost Percentile for Wetland Restoration )
• WETPROGRNK ( type: esriFieldTypeInteger, alias: Programmatic Ease Rank for Wetland Restoration )
• WETPROGPCT ( type: esriFieldTypeSmallInteger, alias: Programmatic Ease Percentile for Wetland Restoration )
• RFBECORANK ( type: esriFieldTypeInteger, alias: Ecological Benefit Rank for Riparian Forest Buffer Restoration )
• RFBECO_PCT ( type: esriFieldTypeSmallInteger, alias: Ecological Benefit Percentile for Riparian Forest Buffer Restoration )
• RFBCOSTRNK ( type: esriFieldTypeInteger, alias: Potential Cost Rank for Riparian Forest Buffer Restoration )
• RFBCOSTPCT ( type: esriFieldTypeSmallInteger, alias: Potential Cost Percentile for Riparian Forest Buffer Restoration )
• RFBPROGRNK ( type: esriFieldTypeInteger, alias: Programmatic Ease Rank for Riparian Forest Buffer Restoration )
• RFBPROGPCT ( type: esriFieldTypeSmallInteger, alias: Programmatic Ease Percentile for Riparian Forest Buffer Restoration )
• Shape ( type: esriFieldTypeGeometry, alias: GIS Shape )
• Shape.STArea() ( type: esriFieldTypeDouble, alias: Shape.STArea() )
• Shape.STLength() ( type: esriFieldTypeDouble, alias: Shape.STLength() )

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