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    • Keywords


      Gross primary productivity (GPP); leaf area index (LAI); aggregated canopy model (ACM); Moderate Resolution Imaging Spectroradiometer (MODIS); tropical forest; MetFlux India.

    • Abstract


      Tropical forests act as a major sink of atmospheric carbon dioxide, and store large amounts of carbon in biomass. India is a tropical country with regions of dense vegetation and high biodiversity. However due to the paucity of observations, the carbon sequestration potential of these forests could not be assessed in detail so far. To address this gap, several flux towers were erected over different ecosystems in India by Indian Institute of Tropical Meteorology as part of the MetFlux India project funded by MoES (Ministry of Earth Sciences, Government of India). A 50 m tall tower was set up over a semi-evergreen moist deciduous forest named Kaziranga National Park in north-eastern part of India which houses a significant stretch of local forest cover. Climatically this region is identified to be humid sub-tropical. Here we report first generation of the in situ meteorological observations and leaf area index (LAI) measurements from this site. LAI obtained from NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) is compared with the in situ measured LAI. We use these in situ measurements to calculate the total gross photosynthesis (or gross primary productivity, GPP) of the forest using a calibrated model. LAI and GPP show prominent seasonal variation. LAI ranges between 0.75 in winter to 3.25 in summer. Annual GPP is estimated to be 2.11kg C m−2year−1.

    • Author Affiliations


      Pramit Kumar Deb Burman1 Dipankar Sarma2 Mathew Williams3 Anandakumar Karipot4 Supriyo Chakraborty1

      1. Centre for Climate Change Research, Indian Institute of Tropical Meteorology, Pune 411 008, India.
      2. Department of Environmental Sciences, Tezpur University, Tezpur 784 028, India.
      3. School of Geosciences, University of Edinburgh, Edinburgh EH9 3FF, UK.
      4. Department of Atmospheric and Space Sciences, Savitribai Phule Pune University, Pune 411 007, India.
    • Dates

  • Journal of Earth System Science | News

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