Data/hora: 11/06/2024 23:32:26

Biblioteca(s): | Embrapa Territorial.
Data corrente: | 31/10/2016
Data da última atualização: | 19/05/2017
Autoria: | RONQUIM, C. C.; SILVA, R. F. B.; FIGUEIREDO, E. B. de; BORDONA, R. O.
Afiliação: | CARLOS CESAR RONQUIM, CNPM; Ramon F. B. Silva, Unicamp; Eduardo B. de Figueiredo, Unesp, Jaboticabal; Ricardo O. Bordona, Brazilian Bioethanol Science and Technology Laboratory, Campinas.
Título: | Carbon sequestration associated to the land-use and land-cover changes in the forestry sector in Southern Brazil.
Ano de publicação: | 2016
Fonte/Imprenta: | Proceedings of SPIE - International Society for Optical Engineering, v. 9998, p. 99981T-1- 99981T-14, 2016.
Idioma: | Inglês
Conteúdo: | We 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.
Palavras-Chave: | Dinâmica florestal; Forestry dynamics; Native forest; Paraíba do Sul River watershed; Rio Paraíba do Sul.
Thesagro: | Floresta Nativa; Sensoriamento Remoto.
Thesaurus Nal: | Eucalyptus; remote sensing.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/149463/1/Paper-Carbono-Ronquim-SPIE-16.pdf
Registro original: | Embrapa Territorial (CNPM)
Exemplares: | CNPM - (4765-1) - UPC - AP - DD - 16/034 - AP - 2016.034 - DIS