Table 3.3
Multiple regression models from various studies (see Tables 3.1 and 3.2 for definitions of variables)
Model
Satellite instruments
Authors
AGB = 48.8(q
NIR /q
R ) ? 2.3Age-454MASVI-38;
AGB = 111(NDVIc
10.3
/(NDVIc
10.3
? 0.35
10.3
))
AGB = 232.5q
NIR ? 2.7Age-71
Age is forest age
Single ETM+
Zheng et al. (2004)
AGB = 122.288 – 1.078TCb-128.913VARtm2_9
AGB = 64.037 – 1.65 q
NIR ? 1.405SKtm4_9
VARtm2_9 is variance texture with window size of 9 9 9 in TM2
SKtm4_9 is skewness with window size of 9 9 9 in TM4
Single TM
Lu (2005)
Log(AGB) = 2.99 ? 0.18LHH ? 0.0467QH ? 0.218QV ? 0.0028LAI ?
0.00059NDVI ? 0.0133VCF
JERS-1, QSCAT H and V
MODIS dry season NDVI, percent
tree cover (VCF), dry season LAI
AGB \
150 Mg/ha
Saatchi et al. (2007a
, b)
AGB = 7.938Log(q
G )213.286 Log(q
R ) ? 9.309 q
NIR ? 9.953Log(q
SWIR3 )
q
SWIR3 is band 9
ASTER
Heiskanen (2006a, b)
Thailand AGB = 168 - 9984q
B ? 8081q
G ? 4793q
R - 238q
NIR -
436q
SWIR1 - 1338q
SWIR2
Brazil AGB = 195 - 628q
B - 3493q
G - 1442q
R - 532q
NIR ? 2487q
SWIR1 -
1821q
SWIR2
Malaysia AGB = 28 343 - 8160q
B ? 7613q
G - 6432q
R ? 781q
NIR -
3625q
SWIR1 ? 6226q
SWIR2
Single ETM+
Foody et al. (2003)
Log10 AGB = 3Á7163 - 0Á01078TC
b ? 0Á007065TC
w
AGB = 73709Á9241 - 48420Á44 NDVI ? 67242Á43MIRI
Single ETM+
Roy and Ravan (1996)
1/AGB = a
? b[(1/NDVI)/Latitude
2
] ? cLatitude
Growing season AVHRR
Dong et al. (2003)
ETM bands ? spectral indices
ETM bands ? spectral indices ? topographic variables
ETM bands ? spectral indices ? topographic variables ? climate variables
TC indices ? spectral indices
TC indices ? spectral indices ? topographic variables
TC indices ? spectral indices ? topographic variables ? climate variables
ETM
Powell et al. (2010)
3 Remote Sensing of Forest Biomass
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