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Automated detection of selective logging in Amazon forests using airborne Lidar Data and pattern recognition algorithms. Author(s): KELLER, M. M.; OLIVEIRA, M. V. N. D.; TAKEMURA, C. M.; VICTORIA, D. de C.; ARAUJO, L. S. de; MORTON, D. C. Repository: BDPA Publication year: 2012
Amazon forest structure generates diurnal and seasonal variability in light utilization. Author(s): MORTON, D. C.; RUBIO, J.; COOK, B. D.; GASTELLU-ETCHEGORRY, J-P; LONGO, M.; CHOI, H.; HUNTER, M.; KELLER, M. The complex three-dimensional (3-D) structure of tropical forests generates a diversity of light environments for canopy and understory trees. Understanding diurnal and seasonal changes in light avail... ... Repository: BDPA Publication year: 2016
The role of termite CH4 emissions on the ecosystem scale: a case study in the Amazon rainforest. Author(s): ASPEREN, H. van; ALVES-OLIVEIRA, J. R.; WARNEKE, T.; FORSBERG, B.; ARAUJO, A. C. de; NOTHOLT, J. The magnitude of termite methane (CH4) emissions is still an uncertain part of the global CH4 budget and current emission estimates are based on limited field studies. We present in situ CH4 emission... ... Repository: BDPA Publication year: 2021
Tree height and tropical forest biomass estimation. Author(s): HUNTER, M. O.; KELLER, M.; VICTORIA, D. de C.; MORTON, D. C. Tropical forests account for approximately half of above-ground carbon stored in global vegetation. However, uncertainties in tropical forest carbon stocks remain high because it is costly and laborio... ... Repository: BDPA Publication year: 2013
Landsat near-infrared (NIR) band and ELM-FATES sensitivity to forest disturbances and regrowth in the Central Amazon. Author(s): NEGRÓN-JUÁREZ, R. I.; HOLM, J. A.; FAYBISHENKO, B.; MAGNABOSCO-MARRA, D.; FISHER, R. A.; SHUMAN, J. K.; ARAUJO, A. C. de; RILEY, W. J.; CHAMBERS, J. Q. Forest disturbance and regrowth are key processes in forest dynamics, but detailed information on these processes is difficult to obtain in remote forests such as the Amazon. We used chronosequences o... ... Repository: BDPA Publication year: 2020
Impact of deforestation on the soil physical and chemical attributes, and humic fraction of organic matter in dry environments in Brazil. Author(s): REZENDE, J. S.; FREIRE, F. J.; ARAUJO FILHO, J. C. de; FREIRE, M. B. G. dos S.; ALMEIDA, B. G. de; SANTOS, L. R. C. Deforestation of Caatinga and inadequate land use of these dry environments have impacted soil quality in Northeastern Brazil. The objectives of this study were: (a) to evaluate the effect of deforest... ... Repository: BDPA Publication year: 2022
Canopy area of large trees explains aboveground biomass variations across neotropical forest landscapes. Author(s): MEYER, V.; SAATCHI, S.; CLARCK, D. B.; KELLER, M.; VICENT, G.; FERRAZ, A.; ESPÍRITO-SANTO, F.; OLIVEIRA, M. V. N. d'; KAKI, D.; CHAVE, J. Large tropical trees store significant amounts of carbon in woody components and their distribution plays an important role in forest carbon stocks and dynamics. Here, we explore the Properties of a n... ... Repository: BDPA Publication year: 2018
Changes in soil carbon stocks in Brazil due to land use: paired site comparisons and a regional pasture soil survey. Author(s): ASSAD, E. D.; PINTO, H. S.; MARTINS, S. C.; GROPPO, J. D.; SALGADO, P. R.; EVANGELISTA, B.; VASCONCELLOS, E.; SANO, E. E.; PAVÃO, E.; LUNA, R.; CAMARGO, P. B.; MARTINELLI, L. A. Abstract. In this paper we calculated soil carbon stocks in Brazil using 17 paired sites where soil stocks were determined in native vegetation, pastures and crop-livestock systems (CPS), and in other... ... Repository: BDPA Publication year: 2013
Can current moisture responses predict soil CO2 efflux under altered precipitation regimes? A synthesis of manipulation experiments. Author(s): VICCA, S.; BAHN, M.; ESTIARTE, M.; VAN LOON, E. E.; VARGAS, R.; ALBERTI, G.; AMBUS, P.; ARAIN, M. A.; BEIER, C.; BENTLEY, L. P.; BORKEN, W.; BUCHMANN, N.; COLLINS, S. L.; GATO, G. de; DUKES, J. S.; ESCOLAR, C.; FAY, P.; GUIDOLOTTI, G.; HANSON, P. J.; KAHMEN, A.; KRÖEL-DULAY, G.; LADREITER-KNAUSS, T.; LARSEN, K. S.; LELLEI-KOVACS, E.; LEBRIJA-TREJOS, E.; MAESTRE, F. T.; MARHAN, S.; MARSHALL, M.; MEIR, P.; MIAO, Y.; MUHR, J.; NIKLAUS, P. A.; OGAYA, R.; PEÑUELAS, J.; POLL, C.; RUSTAD, L. E.; SAVAGE, K.; SCHINDLBACHER, A.; SCHMIDT, I. K.; SMITH, A. R.; SOTTA, E. D.; SUSEELA, V.; TIETEMA, A.; VAN GESTEL, N.; VAN STRAATEN, O.; WAN, S.; WEBER, U.; JANSSENS, I. A. As a key component of the carbon cycle, soil CO2 efflux (SCE) is being increasingly studied to improve our mechanistic understanding of this important carbon flux. Predicting ecosystem responses to cl... ... Repository: BDPA Publication year: 2014
Changes in soil carbon, nitrogen, and phosphorus due to land-use changes in Brazil. Author(s): GROPPO, J. D.; LINS, S. R. M.; CAMARGO, P. B.; ASSAD, E. D.; PINTO, H. S.; MARTINS, S. C.; SALGADO, P. R.; EVANGELISTA, B.; VASCONCELLOS, E.; SANO, E. E.; PAVÃO, E.; LUNA, R.; MARTINELLI, L. A. Abstract. In this paper, soil carbon, nitrogen and phosphorus concentrations and stocks were investigated in agricultural and natural areas in 17 plot-level paired sites and in a regional survey encom... ... Repository: BDPA Publication year: 2015

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