Ahmad, Berhaman and Phua, Mui-How and Ling, Zia-Yiing and Wong, Wilson and Korom, Alexius and Normah Awang Besar, and Tsuyuki , Satoshi and Ioki, Keiko and Hoshimoto, Keigo and Hirata, Yasumasa and Saito, Hideki and Takao, Gen (2012) Estimating aboveground biomass of a tropical forest in Northern Borneo based on individual tree crowns from IKONOS 2 data. In: The 33rd Asian Conference on Remote Sensing, 26-30 November 2012, Pattaya, Thailand.
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Official URL: https://www.researchgate.net/profile/Alex_Korom/pu...
Estimation of AGB and carbon of tropical forests has been a crucial factor to ‘Reduction of carbon emissions from deforestation and forest degradation-plus’, a monetary mechanism for combating global warming. We examined the use of IKONOS 2 data for estimating aboveground biomass of a tropical forest in Long Mio, Sabah, Malaysia. The IKONOS 2 data was corrected for path radiance and topographic effect before segmentation using the watershed method in ArcGIS. Correlation analyses between the segment variables and forest variables revealed that crown area extracted from the IKONOS 2 data (CAs ) had the strongest correlation with the field-measured diameter at breast height (DBHf). Linear regression analysis produced a model to estimate DBHf using CAs with R2 of 0.71. Cross-validation using the remaining half of the data set also showed very consistent result. The CAs only represented upper canopy trees but estimated about 80% of the above ground biomass.
|Item Type:||Conference Paper (UNSPECIFIED)|
|Uncontrolled Keywords:||Biomass estimation, Tropical forest, Tree crown detection, IKONOS 2|
|Subjects:||S Agriculture > SD Forestry|
|Divisions:||SCHOOL > School of International Tropical Forestry|
|Deposited By:||IR Admin|
|Deposited On:||18 Sep 2013 12:31|
|Last Modified:||19 Jan 2016 09:39|
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