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Forest/Resources
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Characterizing Tropical Forest in Kinabalu Park, Sabah, Malaysia, Using Landsat-TM Data
The crown diameter is strongly related to band 4 (R 2=0.718) in the closed forest (Table 1). The strong curvilinear relationship between the crown diameter and the band 4 data has indirectly shows the changes of forest types along the elevation gradient. The changes of forest type forest the subalpine forest (small crown ) to the lower montage forest (moderately big crowns ) cause the increases in he spectral responses forest the forest. Low spectral responses of band 4 in old growth stands with less reflective forest litter and crown shadow were reported (spanner et al., 1990).
Figure 3. Relationship between crown Diameter and Band 4.
Conclusion
In short, various information on the tropical forest are contained in the satellite data and are potentially extractable for the forestry studies at a regional scale. The percentage crown cover and crown diameter are important forest variables in forest resource studies. Landsat-TM bands of 5 and 7, and wetness of the tasseled cap transformed data were found having great potential in prediction the percentage crown cover. The crown diameter is strongly related to the and 4. this study also recognized that the satellite data, aerial photographs and field survey are supplementary to one another. Over a large region, the combination of satellite data with aerial photographs and field data can be very useful to forest resource survey.
Acknowledgement
We are highly indebted to Dr. kanehiro Kitayama for his invaluable field data on tropical forest in Kinabalu Park and also his guidance during field work. We would like to express my gratitude to Dr. Haruo Sawada of the world Forest Monitoring Research Team, Japanese Forestry and forest Products Research Institute for providing the Landsat-Tm data from the Joint Research on Enhancement of remote Sensing (SAR) Technology on Global Forest Environment Monitoring Project funded by the Japanese Science and Technology Agency.
Reference
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