Mangrove Development in Fiji from 1991 to 2007 Vilisi
Tokalauvere SPC-SOPAC
Slide 2
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. Data Sources
Landsat Image 1991 FOCO 1991/2001 Landsat Image 2001 ALOS 2007
Visual Interpretation
Slide 3
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. Description
Database
Slide 4
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. MapInfo to
ERDAS Forest, Mangrove polygons exported (DXF) to ERDAS. Add
Projection. Convert to raster. Recode polygon values. Add to forest
cover layer. Now all handled by ArcGIS (spatial analyst)
Slide 5
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. Overlay
Analysis 1:50,000
Slide 6
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. Reducing to
Mappable Area Size Clump Eliminate Cluster No. 2384 1.2 ha All
clusters < 1 hectare are joined with the next biggest neighbour
class
Slide 7
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. 1Hectare
Accumulation
Slide 8
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. Output from
Access Database IDHectareLegend
R22-----------------------------------------------------------------------------------------
1 Stable Natural Forest 222,739Mangrove in 1991 and mangrove in
2001 1149,791Natural forest in 1991 and natural forest in 2001
SUM52,530 2 Reforestation Natural Forest 7112Water body in 1991 and
natural forest in 2001 612Non forest in 1991 and natural forest in
2001 72364Water body in 1991 and mangrove in 2001 SUM378 3
Deforestation Natural Forest 25166Mangrove in 1991 and coconut
cover in 2001 15212Natural forest in 1991 and coconut cover in 2001
16231Natural forest in 1991 and non forest in 2001
Slide 9
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. Deforestation
of Mangroves
Slide 10
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities.
Slide 11
Reforestation of Mangroves
Slide 12
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. Results
YEARVITI LEVU (ha) VANUA LEVU (ha) OUTER ISLANDS (ha) 199124,
230215, 570760 200124, 60018, 250750 200724, 60019, 760710
Slide 13
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. Vanua Levu
Map_ID199120012007SUM O231,8601,9391,93677 O242,4152,4042,410-5
P22412411 P232,9962,8592,854-142 P243,0462,901 -145
Q223,4083,4343,43225 Q23490477 -13 Q24241191 -50
R222,8601,1252,638-222 R232,7571,5761,579-1,178 R24680590 -90
S21230217 -13 S228193 11 S239134 -58 S240000
SUM21,56718,25019,764-1,804
Slide 14
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. Rhyzophora
Bruguiera Coconut
Slide 15
Apply geo-science and technology to realise new opportunities
for improving the livelihoods of Pacific communities. Thanks