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Remote Sens. 2012, 4(10), 3058-3077; doi:10.3390/rs4103058
Article

Characteristics of Decomposition Powers of L-Band Multi-Polarimetric SAR in Assessing Tree Growth of Industrial Plantation Forests in the Tropics

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Received: 30 July 2012; in revised form: 25 September 2012 / Accepted: 25 September 2012 / Published: 15 October 2012
(This article belongs to the Special Issue Remote Sensing by Synthetic Aperture Radar Technology)
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Abstract: A decomposition scheme was applied to ALOS/PALSAR data obtained from a fast-growing tree plantation in Sumatra, Indonesia to extract tree stem information and then estimate the forest stand volume. The scattering power decomposition of the polarimetric SAR data was performed both with and without a rotation matrix and compared to the following field-measured forest biometric parameters: tree diameter, tree height and stand volume. The analytical results involving the rotation matrix correlated better than those without the rotation matrix even for natural scattering surfaces within the forests. Our primary finding was that all of the decomposition powers from the rotated matrix correlated significantly to the forest biometric parameters when divided by the total power. The surface scattering ratio of the total power markedly decreased with the forest growth, whereas the canopy and double-bounce scattering ratios increased. The observations of the decomposition powers were consistent with the tree growth characteristics. Consequently, we found a significant logarithmic relationship between the decomposition powers and the forest biometric parameters that can potentially be used to estimate the forest stand volume.
Keywords: polarimetric SAR; ALOS/PALSAR; microwave satellite; scattering power decomposition; fast-growing trees; Acacia; stem volume; forest biomass polarimetric SAR; ALOS/PALSAR; microwave satellite; scattering power decomposition; fast-growing trees; Acacia; stem volume; forest biomass
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Kobayashi, S.; Omura, Y.; Sanga-Ngoie, K.; Widyorini, R.; Kawai, S.; Supriadi, B.; Yamaguchi, Y. Characteristics of Decomposition Powers of L-Band Multi-Polarimetric SAR in Assessing Tree Growth of Industrial Plantation Forests in the Tropics. Remote Sens. 2012, 4, 3058-3077.

AMA Style

Kobayashi S, Omura Y, Sanga-Ngoie K, Widyorini R, Kawai S, Supriadi B, Yamaguchi Y. Characteristics of Decomposition Powers of L-Band Multi-Polarimetric SAR in Assessing Tree Growth of Industrial Plantation Forests in the Tropics. Remote Sensing. 2012; 4(10):3058-3077.

Chicago/Turabian Style

Kobayashi, Shoko; Omura, Yoshiharu; Sanga-Ngoie, Kazadi; Widyorini, Ragil; Kawai, Shuichi; Supriadi, Bambang; Yamaguchi, Yoshio. 2012. "Characteristics of Decomposition Powers of L-Band Multi-Polarimetric SAR in Assessing Tree Growth of Industrial Plantation Forests in the Tropics." Remote Sens. 4, no. 10: 3058-3077.


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