@InProceedings{HeinrichSCRASCHSHAAA:2021:QuSpPa,
               author = "Heinrich, Viola H. A. and Silva, Ricardo Dal'Agnol da and Cassol, 
                         Henrique Lu{\'{\i}}s Godinho and Rosan, Thais and Almeida, 
                         Catherine Torres de and Silva J{\'u}nior, Celso Henrique Leite 
                         and Campanharo, Wesley Augusto and House, Joanna I. and Sitch, 
                         Stephen and Hales, Tristram C. and Adami, Marcos and Anderson, 
                         Liana O. and Arag{\~a}o, Luiz Eduardo Oliveira e Cruz de",
          affiliation = "{University of Bristol} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {University of Exeter} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {University of Bristol} and {University of Exeter} and 
                         {Cardiff University} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Centro Nacional de Monitoramento e Alertas 
                         de Desastres Naturais (CEMADEN)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Quantifying the spatial patterns of Secondary Forest carbon 
                         sequestration potential in the Brazilian Amazon",
                 year = "2021",
         organization = "EGU General Assembly",
            publisher = "EGU",
             abstract = "Overall, global forests are expected to contribute about a quarter 
                         of pledged mitigation under the Paris Agreement, by limiting 
                         deforestation and by encouraging forest regrowth. Secondary 
                         Forests in the Neo-tropics have a large climate mitigation 
                         potential, given their ability to sequester carbon up to 20 times 
                         faster than old-growth forests. However, this rate does not 
                         account for the spatial patterns in secondary forest regrowth 
                         influenced by regional and local-scale environmental and 
                         anthropogenic disturbance drivers. Secondary Forests in the 
                         Brazilian Amazon are expected to play a key role in achieving the 
                         goals of the Paris Agreement, however, the Amazon is a large and 
                         geographically complex region such that regrowth rates are not 
                         uniform across the biome. To understand the impact of key drivers 
                         we used a multi-satellite data approach with the aim of 
                         understanding the spatial variations in secondary forest regrowth 
                         in the Brazilian Amazon. We mapped secondary forest area and age 
                         using a land-use-land-cover dataset MapBiomas and, combined with 
                         the European Space Agency Aboveground Carbon dataset, constructed 
                         regional regrowth curves for the year 2017. We found large 
                         variations in the regrowth rates across the Brazilian Amazon due 
                         to large-scale environmental drivers such as rainfall and 
                         shortwave-radiation. Regrowth rates are similar to previous 
                         pan-Amazonian estimates in the North-West (3 ±1.0 MgC ha-1 yr-1), 
                         which are double than those in the North-East Amazon (1.3 ±0.3 MgC 
                         ha-1 yr-1). The impact of anthropogenic disturbances, namely fire 
                         and repeated deforestation prior to the most recent regrowth only 
                         reduces the regrowth by 20% in the North-West (2.4 ±0.8 MgC ha-1 
                         yr-1) compared to 55% in the North-East (0.8 ±0.8 MgC ha-1 yr-1). 
                         Overall, secondary forest carbon stock of 294 TgC in the year 
                         2017, could have been 8% higher with avoided fires and repeat 
                         deforestation. We found that the 2017 area of secondary forest, 
                         which occupies only ~4% of the Brazilian Amazon biome, can 
                         contribute significantly (~5.5%) to Brazils net emissions 
                         reduction targets, accumulating ~19.0 TgC yr-1until 2030 if the 
                         current area of secondary forest is maintained (13.8 Mha). 
                         However,this value reduces rapidly to less than 1% if only 
                         secondary forests older than 20 years are preserved (2.2 Mha). 
                         Preserving the remaining old-growth forest carbon stock and 
                         implementing legal mechanisms to protect and expand secondary 
                         forest areas are key to realising the potential of secondary 
                         forest as a nature-based climate change mitigation solution.",
  conference-location = "Online",
      conference-year = "19-30 apr.",
                  doi = "10.5194/egusphere-egu21-7956",
                  url = "http://dx.doi.org/10.5194/egusphere-egu21-7956",
             language = "en",
           targetfile = "EGU21-7956-print.pdf",
        urlaccessdate = "28 abr. 2024"
}