ANÁLISE DOS FRAGMENTOS FLORESTAIS NA BACIA DO RIO GRANDE (BA), UTILIZANDO IMAGENS ALOS E MODELAGEM MATEMÁTICA, COMO FORMA DE SUBSIDIAR O PLANEJAMENTO DA ÁREA.

Leonardo Carvalho Santana; Rosana Sumiya Gurgel; Osmar Abílio de Carvalho Júnior

doi:10.26512/2236-56562009e39851

Authors

Leonardo Carvalho Santana UnB - Universidade de Brasília - Campus Universitário Darcy Ribeiro, Asa Norte - 70910-900, Brasília, DF, Brasil
Rosana Sumiya Gurgel UnB - Universidade de Brasília - Campus Universitário Darcy Ribeiro, Asa Norte - 70910-900, Brasília, DF, Brasil
Osmar Abílio de Carvalho Júnior UnB - Universidade de Brasília - Campus Universitário Darcy Ribeiro, Asa Norte - 70910-900, Brasília, DF, Brasil

DOI:

https://doi.org/10.26512/2236-56562009e39851

Keywords:

remote sensing, GIS, landscape, landuse, ALOS

Abstract

The West Region of Bahia state had a strong expansion of the agricultural sector since the 1970s, completely changing the natural landscape. This rapid change and intense land use has produced impacts in the permanent preservation areas (APP) and native vegetation fragmentation. This work aims to evaluate the permanent preservation areas of rio Branco basin, identifying areas with soil misuse, but also to verify the effects of forest fragmentation. In this work, were used panchromatic sensor PRISM / ALOS images with high spatial resolution (2.5 meters), acquired in 2008. The methodology can be subdivided into the following steps: (a) ALOS image processing, (b) elaboration of land use map, (c) delimitation of permanent preservation areas, and (d) calculation of metrics fragments of native vegetation. To calculate metric fragments was utilized FRAGSTATS software considering two scenarios: (a) current situation, and (b) with the preserved APP. The total APP area is 583.59 km ², in which 48.28 km² was soil misuse. Considering the ideal scenario with the total APPs area being preserved, the forest area presents the follow changes: (a) the number of fragments decreases from 338 to 187 and (b) the average size of the fragments increase significantly.

References

BAHIA. Secretaria de Recursos Hídricos. Saneamento e Habitação. Coordenação de Recursos Hídricos. (1993). Plano diretor de recursos hídricos: bacia do rio Grande. Salvador. HIGESA, 266p.

BAILLIE, S.R.; SUTHERLAND, W.J.; FREEMAN, S.N.; GREGORY, R.D. & PARADIS, E. (2000). Consequences of large-scale processes for the conservation of bird populations. Journal of Applied Ecology, 37: S88–S102.

BRASIL. (1965). Lei Nº 4.771, de 15 de setembro de 1965. Código florestal Brasileiro. Disponível em: < http://www.planalto.gov.br/ccivil_03/LEIS/L4771.htm>. Acesso em 14 de junho de 2009.

BRUSSARD, P.F.; MURPHY, D.D. & NOSS, R.F. (1992). Strategy and tactics for conserving biological diversity in the United States. Conservation Biology, 6: 157–159.

CONAMA. Conselho Nacional do Meio Ambiente. (2002). Resolução Nº 303, de 20 de Março de 2002. Parâmetros, definições e limites de Áreas de Preservação Permanente. Disponível em: . acesso em 14 de junho de 2009.

EMBRAPA. (2009). Banco de dados climatológicos do Brasil. ESALQ/USP-Embrapa Monitoramento por Satélite. Disponível em: . Acesso em: 19 de abril de 2009.

FORMAN, R. T. T. & GODRON, M. (1986). Landscape ecology.Wiley & Sons Ed., New York, 619 p.

GRUEN, A. & LI, H. (1997). Semi-automatic linear feature extraction by dynamic programming and LSB-Snakes. Photogrammetric Engineering & Remote Sensing, 63(8): 985-995,

GUIMARÃES, R. F; CARVALHO JÚNIOR, O, A; ANDRADE, A. C; GOMES Roberto A, T; FLOSS, P. A; ESPÍRITO SANTO, F. R. C; MARTINS, E. S; CARVALHO, A. P. F. & ARAÚJO NETO, M. D. (2005). Emprego de imagens IKONOS e de um modelodigital de terreno na detecção de áreas de infração do código florestal. Espaço & Geografia, 8(1): 99-122.

HANSSON, L. (1992). Landscape ecology of boreal forests. TREE, 7: 299–303.

HARRISON, S. & BRUNA, E. (1999). Habitat fragmentation and large-scale conservation: what do we know for sure? Ecography, 22: 225–232

IGARASHI, T. (2001). ALOS mission requirement and sensor specifications. Advances in Space Research, 28(1): 127-131.

JACOMINE, P. K. T. [et al.]. (1976). Levantamento exploratório-reconhecimento de solos da margem esquerda do rio São Francisco, estudo da Bahia. Recife, EMBRAPA, Serviço Nacional de Levantamento e Conservação de Solos. (Boletim Técnico, 38). Brasil. SUDENE. DRN. Divisão de Recursos Renováveis, 7, 404p.

JAXA. (2006). ALOS Product Format Description. Acessado em 7 maio 2009. Disponí vel em: vel em: <http://stage.tksc.jaxa.jp/eorcalos/PRISM_L1_J_ENa.zip>.

KLINK, A. C & MOREIRA, B. R. (2005). A conservação do Cerrado brasileiro. Megadiversidade, 1(1): 147-154.

KOCAMAN, S. & GRUEN, A. (2008). Orientation and Self-calibration of ALOS PRISM Imagery. The Photogrammetric Record, 23(123): 323-340.

LAW, B.S. & DICKMAN, C.R. (1998). The use of habitat mosaics by terrestrial vertebrate fauna: implications for conservation and management. Biodiversity and Conservation, 7: 323–333.

MCGARIGAL, K & MARKS, B. J. 1995. FRAGSTATS: spatial pattern analysis program for quantifying landscape structure. Gen. Tech. Rep. PNW-GTR-351. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 122 p.

MCINTYRE, S. & HOBBS, R.J. (1999). A framework for conceptualizing human effects on landscapes and its relevance to management and research models. Conservation Biology 13: 1282–1292.

NAVEH, Z. & LIEBERMAN, A. 1994. Landscape ecology: Theory and application. New York: Springer-verlag, 360p.

POPE, S.E.; FAHRIG, L. & MERRIAM, H.G. (2000). Landscape complementation and metapopulation effects on Leopard Frog populations. Conservation Biology, 81: 2498–2508.

SÖDERSTRÖM, B. & PÄRT, T. (2000). Influence of landscape scale on farmland birds breeding in semi-natural pastures. Conservation Biology, 14: 522–533.

TADONO, T.; SHIMADA, M.; WATANABE, M.; HASHIMOTO, T. & IWATA, T. (2004). Calibration and Validation of PRISM Onboard ALOS. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. XXXV part B1, pp. 13-18.

VALLADARES, G. S. (2002). Caracterização dos solos e classes de terra para irrigação da Bahia. Série Documentos Embrapa Monitoramento por Satélite, 19: 1-35p.