@InProceedings{OliveiraBrunMoraShim:2018:AnCaWa,
               author = "Oliveira, Gabriel de and Brunsell, Nathaniel and Moraes, Elisabete 
                         Caria and Shimabukuro, Yosio Edemir",
          affiliation = "{University of Kansas} and {} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Analysis of carbon and water fluxes in an amazonian forest 
                         ecosystem affected by fire",
                 year = "2018",
         organization = "Conference on Agricultural and Forest Meteorology, 33.",
             abstract = "The effects of fire on forest carbon and water cycling are not 
                         well understood, specially due to the difficulty of obtaining 
                         surface flux measurements in fire-affected areas with high 
                         temporal and spatial resolution. The present study aimed to 
                         characterize and analyse, using MODIS remote sensing data (MOD17 
                         and MOD16 products), the temporal dynamics of gross primary 
                         productivity (GPP) and evapotranspiration (ET) in a primary 
                         Amazonian forest area affected by fire in September 2010 in the 
                         state of Para, Brazil. The forest area was mapped using a 
                         TM/Landsat 5 image acquired during the time of fire burning. The 
                         average values of GPP and ET for the 3 years pre-fire were 2487.8 
                         g C m-2 yr-1 and 1410.2 mm yr-1, respectively. One year after the 
                         fire these values were ~6% and ~11% lower. The average values of 
                         GPP and ET 3 years post-fire were 2540.7 g C m-2 yr-1 and 1345.4 W 
                         m-2, respectively, showing that they were ~2% higher and ~5% lower 
                         than the average values verified prior to burning. Regarding these 
                         findings, it is important to note that GPP and ET values increased 
                         at an average annual rate of 17% and of 21%, respectively. We also 
                         found that after the fire GPP tended to be higher during the dry 
                         season (~5%) while ET tended to be lower (~8%). These patterns are 
                         related to changes in the photosynthetic capacity and light-use 
                         efficiency specially in the low canopy. We conclude that 3 years 
                         was enough time for this forest to recover its original state in 
                         terms of productivity and water loss. Despite this result, it is 
                         important to note that a high severity fire can alter the canopy 
                         characteristcs more strongly than a low severity fire, which means 
                         that distinct disturbance regimes will affect the carbon and water 
                         ciclyng after the fire in forested areas quite differently.",
  conference-location = "Boise, ID",
      conference-year = "14-17 may",
             language = "en",
        urlaccessdate = "27 abr. 2024"
}