Native Habitat Inventory Final Report 2004 - St. Lucie County
Native Habitat Inventory Final Report 2004 - St. Lucie County
Native Habitat Inventory Final Report 2004 - St. Lucie County
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• Hydrology, wetlands and uplands<br />
• Topography (elevation)<br />
• Road centerlines and railroads<br />
• Conservation and other public lands (existing and proposed)<br />
• FNAI Element Occurrences (rare & endangered plants, animals, & communities)<br />
• FNAI Areas of Conservation Interest (A, B, and C)<br />
• FNAI Potential Natural Areas (PNA)<br />
• FNAI Managed Areas (MA)<br />
• FWC <strong>St</strong>rategic <strong>Habitat</strong> Conservation Areas<br />
• FWC Biodiversity Hot Spots<br />
The GIS analyses and mapping to support this project and the final deliverable were done<br />
using ESRI software (ArcGIS 8.x and ArcView 3.3). The final project database was<br />
documented with metadata and organized into a digital map atlas on CDROM for<br />
distribution.<br />
GIS Analysis, <strong>St</strong>atistical Calculations, and Modeling for Ecological Decision-Support<br />
The primary need for GIS analysis in this project was for building 1992 and 2002<br />
landuse/landcover update coverages and change analysis of natural areas over this time<br />
period.<br />
Creation of 1992 and 2002 Land Cover Data Layers<br />
No maps of the 1992 KBN study exist to show the areas considered lost or preserved or<br />
what was considered natural in 1991. Thus, a new 1992 baseline FLUCCS layer was<br />
developed. A 2002 FLUCCS layer was also developed. These two layers were used to<br />
calculate the acreage lost over that 10-year period and to quantify the habitats on the<br />
existing conservation lands.<br />
Methodology<br />
1992 Natural Land Cover Map Layer Development Methodology<br />
1. Began with SFWMD 1994/95 Land Use/Land Cover (LU/LC) GIS Layer<br />
(classified using FLUCCS).<br />
2. Overlaid 2002 Parcel layer, and flagged polygons classified as urban or<br />
agricultural in the 1994/95 LU/LC layer with an improvement built between 1992<br />
and 1994/95.<br />
3. Using <strong>St</strong>. <strong>Lucie</strong> <strong>County</strong>’s 1999/2000 aerial photos, visually checked every urban<br />
or agricultural polygon in the 1994 LU/LC layer with an improvement built<br />
between 1992 and 1995, to determine whether it was disturbed between 1992 and<br />
1994/95. If the improvement was built on a very large parcel in a rural area, the<br />
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