Conversions of NWI Wetlands to Pine Plantation - Altamaha River Watershed, Georgia.
~ Southern Environmental Law Center ~
The overall goal of this project for the Southern Environmental Law Center was to develop and test a practical method for determining the extent and rate of conversion of wetlands to pine plantations in the southeast Atlantic coastal plain. Various GIS data sources and analysis approaches were evaluated, and a promising method was identified, developed and applied to obtain conversion results for the Altamaha river watershed in Georgia.
...kind words from Laura Jones, SELC
Thanks for continuing to work on ways to improve this study.
Thanks for all the great work you are doing on this project - you've done a really impressive job with the data. I sincerely thank you for sticking to this project
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Winter/Summer false color composites - LandSAT TM7 Bands 4r/3g/2b
Winter and summer image pairs were analyzed to identify deciduous and coniferous forest, shrubland and open fields. The 4/3/2 composite brings out vigorously growing vegetation in the image. Click on the image to view at better resolution.
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Study Area
This map shows the Altamaha River watershed study area. The red rectangle outlines the verification area. Pine plantations in this area were classified manually using current 5m panchromatic imagery from the Indian IRS satellite. Pine plantations in various stages of cultivation can be identified visually in the IRS images. Click on the image to view at better resolution.
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Sample IRS Image
Pine plantations are identifiable in this 5m resolution imagery by their "corn row" appearance. Click on the image to view at better resolution.
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Manual Classification Results
Manual classification was done using the 5m IRS data coupled with examination of TM and land use classification data spanning 1984 to 2001. This map shows the classification results. The white dotted areas are pine planations. The yellow dotted areas are open fields that are being cultivated as pine plantations. The green dotted areas are naturae forest. Deciduous forest is unshaded. Click on the image to view at better resolution.
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