This is an automatic comparison of the 1988 forest envelope layer with the 2004 forest formations layer. Two cases are distinguished:
• Case 1: appearance of a new forest polygon between 1988 and 2004
• Case 2: extirpation of a forest polygon between 1988 and 2004
Source data:
1. Mapping of plant formations 2004 upgraded
2. Ortho photo color of the year 1988 with a resolution of 50 cm
3. Point use of 1982 images on an area not covered by the 1988 images
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