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  Folha Amazônica

Roberts DA, Batista G, Pereira J, Waller E, Nelson B. Change Identification using Multitemporal Spectral Mixture Analysis: Applications in Eastern Amazonia, in Remote Sensing Change Detection: Environmental Monitoring Applications and Methods, edited by Elvidge C and Lunetta R, pp. 137-161, Ann Arbor Press, Ann Arbor, MI, 1998.

Roberts DA, Nelson BW, Adams JB, Palmer F. (1998) Spectral changes with leaf aging in Amazon caatinga. Trees-Structure and Function, 12, 315-325. (abstract)

Biggs TW, Dunne T, Domingues TF, Martinelli LA. (2002) Relative influence of natural watershed properties and human disturbance on stream solute concentrations in the southwestern Brazilian Amazon basin. Water Resources Research, 38. (abstract)

Roberts DA, Numata I, Holmes K, Batista G, Krug T, Monteiro A, Powell B, Chadwick OA. (2002) Large area mapping of land-cover change in Rondonia using multitemporal spectral mixture analysis and decision tree classifiers. Journal of Geophysical Research-Atmospheres, 107. (abstract)

Numata I, Soares JV, Roberts DA, Leonidas FC, Chadwick OA, Batista GT. (2003) Relationships among soil fertility dynamics and remotely sensed measures across pasture chronosequences in Rondonia, Brazil. Remote Sensing of Environment, 87, 446-455. (abstract)

Roberts DA, Keller M, Soares JV. (2003) Studies of land-cover, land-use, and biophysical properties of vegetation in the Large Scale Biosphere Atmosphere experiment in Amazonia. Remote Sensing of Environment, 87, 377-388. (abstract)

Souza C, Firestone L, Silva LM, Roberts D. (2003) Mapping forest degradation in the Eastern Amazon from SPOT 4 through spectral mixture models. Remote Sensing of Environment, 87, 494-506. (abstract)

Holmes KW, Roberts DA, Sweeney S, Numata I, Matricardi E, Biggs TW, Batista G, Chadwick OA. (2004) Soil databases and the problem of establishing regional biogeochemical trends. Global Change Biology, 10, 796-814. (abstract)

*Souza CMJ, Roberts DA, Monteiro AL. (2005) Multitemporal Analysis of Degraded Forests in the Southern Brazilian Amazon. Earth Interactions, 9, 1-25. (abstract)

Holmes KW, Chadwick OA, Kyriakidis PC, Silva de Filho EP, Soares JV, Roberts DA. (2006) Large-area spatially explicit estimates of tropical soil carbon stocks and response to land-cover change. Global Biogeochemical Cycles, 20. (abstract)

Numata I, Chadwick OA, Roberts D, Schimel JP, Sampaio FF, Leonidas FC, Soares JV. (2007) Temporal nutrient variation in soil and vegetation of post-forest pastures as a function of soil order, pasture age, and management, Rondonia, Brazil. Agriculture Ecosystems & Environment, 118, 159-172. (abstract)

Numata I, Roberts DA, Chadwick OA, Schimel JP, Sampaio F.R., Leonidas FC, Soares JV. (2007) Characterization of pasture biophysical properties and the impact of grazing intensity using remotely sensed data. Remote Sensing of Environment, 109, 314-327. (abstract)

Powell RL, Roberts DA, Dennison P.E., Hess LL. (2007) Sub-pixel mapping of urban land cover using multiple endmember spectral mixture analysis: Manaus, Brazil. Remote Sensing of Environment, 106, 253-267. (abstract)

Sales M, Souza CM, Kyriakidis PC, Roberts DA, Vidal E. (2007) Improving spatial distribution estimation of forest biomass with geostatistics: A case study for Rondł onia, Brazil. Ecological Modelling, 205, 221-230. (abstract)

Biggs TW, Dunne T, Roberts DA, Matricardi E. (2008) The rate and extend of deforestation in watersheds of the Southwestern Amazon Basin. Ecological Applications, 18, 31-48. (abstract)

Powell RL, Roberts DA. (2008) Characterizing Variability of the Urban Physical Environment for a Suite of Cities in Rond˘nia, Brazil. Earth Interactions, 12. (abstract)

Numata I. (2009) Determining dynamics of spatial and temporal structures of forest edges in South Western Amazonia. Forest Ecology and Management, 258, 2547-2555. (abstract)

Toomey M, Nelson B, Roberts D. (2009) The influence of epiphylls on remote sensing of humid forests. Remote Sensing of Environment, 113, 1787-1798. (abstract)

Numata I. (2010) Biomass collapse and carbon emissions from forest fragmentation in the Brazilian Amazon. Journal of Geophysical Research-Biogeosciences, 115. (abstract)

Numata I, Roberts DA, Chadwick OA, Schimel JP, Galvao LS, Soares JV. (2012) Evaluation of hyperspectral data for pasture estimate in the Brazilian Amazon using field and imaging spectrometers. Remote Sensing of Environment, 112, 1569-1583. (abstract)


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