@InProceedings{AdamiRuFrAgSu:2011:ReSeTi,
               author = "Adami, Marcos and Rudorff, Bernardo Friedrich Theodor and Freitas, 
                         Ramon Morais de and Aguiar, Daniel Alves de and Sugawara, Luciana 
                         Miura and melo, marcio pupin",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Remote sensing time series to evaluate direct land use change of 
                         recent expanded sugarcane crop in Brazil",
            booktitle = "Proceedings...",
                 year = "2011",
                pages = "1--13",
         organization = "1st World Sustainability Forum (2011) Sciforum Electronic 
                         Conferences Series, 2011.",
            publisher = "Multidisciplinary Digital Publishing Institute",
             keywords = "LUC, biofuels, monitoring, MODIS.",
             abstract = "Mitigation of global carbon emissions to prevent global warming 
                         potential using biofuels is highly dependent on direct and 
                         indirect land use change (LUC). There are still several 
                         uncertainties about how to assess the indirect LUC impacts of 
                         biofuels. However, direct LUC (dLUC) can be evaluated using remote 
                         sensing (RS). The present work has the aim to quantify the dLUC 
                         occurred during the recent sugarcane expansion for ethanol and 
                         sugar production concentrated in the South-Central region of 
                         Brazil. This region has a favorable climate for sugarcane 
                         production and also a great potential for agriculture expansion. 
                         Yearly monitoring from 2005 to 2010 using Landsat type imagery has 
                         shown that the sugarcane crop expanded during this period over 3.5 
                         Mha in the South-Central region. To evaluate the dLUC in response 
                         to the expanded sugarcane area we used RS time series from the 
                         MODIS sensor transformed to the two-band enhanced vegetation index 
                         (EVI2), acquired from 2000 to 2009. The original sugarcane map was 
                         re-sampled to a pixel size of 250 x 250 m to be compatible with 
                         spatial resolution of the MODIS images. One percent of these 
                         pixels were systematically sampled covering 1035 pixels. Each of 
                         these pixels were carefully analyzed using a special developed web 
                         tool to visualize the entire MODIS time series overlaid with 
                         several Landsat-5 TM images acquired at key periods in order to 
                         correctly identify the land use/land cover prior to the sugarcane 
                         crop. Considering 2000 as reference year for the dLUC evaluation 
                         it was observed that: 69.8% of the sugarcane expanded on pasture 
                         land; 26.2% expanded on annual crops; 0.6% expanded on native 
                         vegetation; and 3.4 % was not sugarcane expansion but sugarcane 
                         renovation using crop rotation. It was interesting to notice that 
                         35% of the pasture land in 2000 converted to sugarcane was first 
                         converted to annual crops. This practice is commonly adopted for 
                         one to two years on degraded pasture to improve the physical soil 
                         characteristics before introducing the sugarcane crop. It was also 
                         observed that the 0.6 % of native vegetation changed to sugarcane 
                         was previously converted to either annual crop (33%) or pasture 
                         land (67%). Although the analysis needs to be further refined the 
                         results clearly show that the dLUC observed during the recent 
                         sugarcane expansion for ethanol and sugar production in the 
                         South-Central region of Brazil is mainly occurring on pasture and 
                         agricultural land.",
  conference-location = "Basel Basel, Switzerland",
      conference-year = "2011",
                label = "lattes: 1332820060598155 3 AdamiRuFrAgSu:2011:ReSeTi",
             language = "en",
           targetfile = "wsf_576.pdf",
                  url = "http://www.mendeley.com/research/remote-sensing-time-series-evaluate-direct-land-change-recent-expanded-sugarcane-crop-brazil/",
               volume = "1",
        urlaccessdate = "11 maio 2024"
}