Mapping the biomass of Bornean tropical rain forest from remotely sensed data

Giles M. Foody, Mark E. Cutler, Julia McMorrow, Dieter Pelz, Hamzah Tangki, Doreen S. Boyd, Ian Douglas

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    Abstract

    The biomass and biomass dynamics of forests are major uncertainties in our understanding of tropical environments. Remote sensing is often the only practical means of acquiring information on forest biomass but has not always been used successfully. Here the conventional approaches to the estimation of forest biomass from remotely sensed data were evaluated relative to techniques based on the application of artificial neural networks. Together these approaches were used to estimate and map the biomass of tropical forests in north-eastern Borneo from Landsat TM data. The neural networks were found to be particularly suited to the application. A basic multilayer perceptron network, for example, provided estimates of biomass that were strongly correlated with those measured in the field (r= 0.80). Moreover, these estimates were more strongly correlated with biomass than those derived from 230 conventional vegetation indices, including the widely used normalized difference vegetation index (NDVI).
    Original languageEnglish
    Pages (from-to)379-387
    JournalGlobal Ecology and Biogeography
    Volume10
    Issue number4
    DOIs
    Publication statusPublished - Jul 2001

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    Keywords

    • Borneo
    • Land cover change
    • Landsat TM
    • NDVI
    • Neural network
    • Remote sensing
    • Tropical forest biomass

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