Estimation of biomass distribution in Peninsular Malaysia and in the islands of Sumatra, Java and Borneo based on multi-resolution remote sensing land cover analysis

In this study we used high resolution (20 m) land cover maps to derive detailed information on land cover structure within the classes of a regional medium resolution (500 m) land cover map. This enabled improved biomass estimation for the medium resolution land cover classes. Although our results suggested that land cover maps based merely on medium resolution remote sensing data can be used to monitor the extent of forest cover, they also showed that these maps alone are not sufficient to produce reliable regional estimates on above ground biomass in insular Southeast Asia. A quarter of the study area was covered by sub-pixel size (500 m) mosaic of various land cover types containing 14% of biomass. In total, non-forest areas covered over 60% of the study area and included 43% of biomass. In these areas, highly fragmented within class land cover structure was shown to significantly affect biomass estimates. Therefore we conclude that forest/land cover monitoring based merely on medium resolution remote sensing data can no longer be used to sufficiently quantify carbon fluxes connected to land cover changes in insular Southeast Asia, but multi-resolution approaches are needed to perform this task.

[1]  Soo Chin Liew,et al.  New 500 m spatial resolution land cover map of the western insular Southeast Asia region , 2008 .

[2]  Michael Dutschke,et al.  Clearing the way for reducing emissions from tropical deforestation , 2007 .

[3]  M. Keller,et al.  Selective Logging in the Brazilian Amazon , 2005, Science.

[4]  M. Cochrane,et al.  Fire as a Recurrent Event in Tropical Forests of the Eastern Amazon: Effects on Forest Structure, Biomass, and Species Composition 1 , 1999 .

[5]  D. Fuller,et al.  Loss of Forest Cover in Kalimantan, Indonesia, Since the 1997–1998 El Niño , 2004 .

[6]  A. Belward,et al.  GLC2000: a new approach to global land cover mapping from Earth observation data , 2005 .

[7]  Ruth S. DeFries,et al.  Earth observations for estimating greenhouse gas emissions from deforestation in developing countries , 2007 .

[8]  Frédéric Achard,et al.  Improved estimates of net carbon emissions from land cover change in the tropics for the 1990s , 2004 .

[9]  R. Houghton,et al.  Annual fluxes of carbon from deforestation and regrowth in the Brazilian Amazon , 2000, Nature.

[10]  S. Page,et al.  The amount of carbon released from peat and forest fires in Indonesia during 1997 , 2002, Nature.

[11]  F. Siegert,et al.  Land cover change 2002–2005 in Borneo and the role of fire derived from MODIS imagery , 2007 .

[12]  F. Siegert,et al.  Increased damage from fires in logged forests during droughts caused by El Niño , 2001, Nature.

[13]  Frédéric Achard,et al.  Forest classification of Southeast Asia using NOAA AVHRR data , 1995 .

[14]  J. Townshend,et al.  Global land cover classi(cid:142) cation at 1 km spatial resolution using a classi(cid:142) cation tree approach , 2004 .

[15]  Frédéric Achard,et al.  Global tropical forest area measurements derived from coarse resolution satellite imagery: a comparison with other approaches , 1998, Environmental Conservation.

[16]  I. Yamada.  Tropical Rain Forests of Southeast Asia: A Forest Ecologist's View , 1997 .

[17]  Johann G. Goldammer,et al.  Forests on Fire , 1999, Science.

[18]  S. Schneider,et al.  Climate Change 2007 Synthesis report , 2008 .

[19]  Mark A. Cochrane,et al.  Synergistic Interactions between Habitat Fragmentation and Fire in Evergreen Tropical Forests , 2001 .

[20]  R. Houghton.  The annual net flux of carbon to the atmosphere from changes in land use 1850–1990* , 1999 .

[21]  A. Heil,et al.  Indonesian peat and vegetation fire emissions: Study on factors influencing large-scale smoke haze pollution using a regional atmospheric chemistry model , 2006 .

[22]  Alan H. Strahler,et al.  Global land cover mapping from MODIS: algorithms and early results , 2002 .

[23]  F. Achard,et al.  Determination of Deforestation Rates of the World's Humid Tropical Forests , 2002, Science.

[24]  J. Townshend,et al.  Carbon emissions from tropical deforestation and regrowth based on satellite observations for the 1980s and 1990s , 2002, Proceedings of the National Academy of Sciences of the United States of America.

[25]  L. P. Koh,et al.  Southeast Asian biodiversity: an impending disaster. , 2004, Trends in ecology & evolution.

[26]  Jingyun Fang,et al.  Returning forests analyzed with the forest identity , 2006, Proceedings of the National Academy of Sciences.

[27]  United Kingdom,et al.  GLOBAL FOREST RESOURCES ASSESSMENT 2005 , 2005 .

[28]  Tropical Rain Forests of the Far East. , 1985 .