In: Wagner W., Szekely, B. (eds.): ISPRS TC VII Symposium - 100 Years ISPRS, Vienna, Austria, July 5-7, 2010, IAPRS, Vol. XXXVIII, Part 7B 
411 
can be explained by our step wise processing which included 
the advantages of texture, ratio and complementary information 
from different sensors. In addition to the remote sensing data 
processing, the comprehensive and study area-specific nature of 
the field biomass data, and demonstrated accuracy of the 
allometric model (i.e. r^ of 0.93) devised for this study from the 
destructive sampling of 75 trees was instrumental in obtaining 
this high accuracy. This research used numerous processing 
steps and data combinations, but in other field conditions a 
similar approach can be adopted to identify the most suitable 
steps for that particular situation. 
ACKNOWLEDGMENTS 
The authors would like to acknowledge the Hong Kong 
Agriculture, Fisheries and Conservation Department (AFCD) 
for help with tree harvesting in country parks, as well as the 
Japan Aerospace Exploration Agency (JAXA) for the ALOS 
images under ALOS agreement no. 376. This project was also 
sponsored by GRF grant no. PolyU5281/09E. 
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