SG1C
SG2C
SG5C
0.40
0.35
0.30
NDVI difference
Relative NDVI difference
0.25
0.20
0.15
0.10
0.05
0.00
2005 Field Sites
NDVI Difference
SG5D
SG7A
SG7B
SG9C
SG12C
SG13C
SG13D
VG5D
VG6D
VG4D
VG3B
VG2D
VG1D
VG7D
VG13D
VG14D
VG9D
VG8D
VG12D
U2T3
U4T3
Fig. 8.6 The SPOT 5 NDVI image showing the differences of NDVI values in the 100 Â 100 m
2
sites and its 250 Â 250 m
2 surrounding area. The larger NDVI differences indicate that the
100 Â 100 m
2 sites could not represent their surrounding areas; therefore, the collected biomass
values from these sites were not used for calculations
8 Grassland Productivity Simulation: Integrating Remote Sensing. . .
165
SG2C
SG5C
0.40
0.35
0.30
NDVI difference
Relative NDVI difference
0.25
0.20
0.15
0.10
0.05
0.00
2005 Field Sites
NDVI Difference
SG5D
SG7A
SG7B
SG9C
SG12C
SG13C
SG13D
VG5D
VG6D
VG4D
VG3B
VG2D
VG1D
VG7D
VG13D
VG14D
VG9D
VG8D
VG12D
U2T3
U4T3
Fig. 8.6 The SPOT 5 NDVI image showing the differences of NDVI values in the 100 Â 100 m
2
sites and its 250 Â 250 m
2 surrounding area. The larger NDVI differences indicate that the
100 Â 100 m
2 sites could not represent their surrounding areas; therefore, the collected biomass
values from these sites were not used for calculations
8 Grassland Productivity Simulation: Integrating Remote Sensing. . .
165