02453naa a2200265 a 450000100080000000500110000800800410001910000190006024501410007926000090022052015790022965000150180865000190182365000200184265000250186265300240188765300220191165300180193365300360195165300240198770000200201170000250203170000190205677301120207520556592017-05-19       2016    bl uuuu     u00u1 u    #d1 aRONQUIM, C. C.  aCarbon sequestration associated to the land-use and land-cover changes in the forestry sector in Southern Brazil.h[electronic resource]  c2016  aWe studied the Paraíba do Sul river watershed , São Paulo state (PSWSP), Southeastern Brazil, in order to assess the land use and cover (LULC) and their implication s to the amount of carbon (C) stored in the forest cover between the years 1985 and 2015. Th e region covers a n area of 1,395,975 ha . We used images made by the Operational Land Imager (OLI) sensor (OLI/Landsat - 8) to produce mappings , and image segmentation techniques to produce vectors with homogeneous characteristics. The training samples and the samples used for classification and validation were collected from the segmented image. To quantify the C stocked in aboveground live biomass (AGLB) , we used an indirect method and applied literature - based reference values. The recovery of 205,690 ha of a secondary Native Forest (NF) after 1985 sequestered 9.7 Tg (Teragram) of C . Considering the whole NF area (455,232 ha), the amount of C accumulated al ong the whole watershed was 3 5 .5 Tg , and the whole Eucalyptus crop (EU) area (113,600 ha) sequester ed 4. 4 Tg of C. Thus, the total amount of C sequestered in the whole watershed (NF + EU) was 3 9 . 9 Tg of C or 1 45 . 6 Tg of CO 2 , and the NF areas were responsible for the large st C stock at the watershed (8 9 %). Therefore , the increase of the NF cover contribut es positively to the reduction of CO 2 concentration in the atmosphere, and Reducing Emissions from Deforestation and Forest Degradation (REDD + ) may become one of the most promising compensation mechanisms for the farmers who increased forest cover at their farms.  aEucalyptus  aremote sensing  aFloresta Nativa  aSensoriamento Remoto  aDinâmica florestal  aForestry dynamics  aNative forest  aParaíba do Sul River watershed  aRio Paraíba do Sul1 aSILVA, R. F. B.1 aFIGUEIREDO, E. B. de1 aBORDONA, R. O.  tProceedings of SPIE - International Society for Optical Engineeringgv. 9998, p. 99981T-1- 99981T-14, 2016.