Cor do solo (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Cor do solo" in Portuguese language version.

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agriculture.vic.gov.au

«Interpreting Soil Colour». Victorian Resources Online. Consultado em 15 janeiro 2017

Gonzalez-Perez, Jose A.; Gonzalez-Vila, Francisco J.; Almendros, Gonzalo; Knicker, Heike (2004). «The effect of fire on soil organic matter-a review» (PDF). Elsevier. Environment International. 30 (6): 855–870. PMID 15120204. doi:10.1016/j.envint.2004.02.003. Consultado em 4 de janeiro de 2019. As a whole, BC represents between 1 and 6% of the total soil organic carbon. It can reach 35% in Terra Preta Oxisols (Brazilian Amazonia) (Glaser et al., 1998, 2000) up to 45 % in some chernozemic soils from Germany (Schmidt et al., 1999), and up to 60% in black Chernozem from Canada (Saskatchewan) (Ponomarenko and Anderson, 1999)

Gonzalez-Perez, Jose A.; Gonzalez-Vila, Francisco J.; Almendros, Gonzalo; Knicker, Heike (2004). «The effect of fire on soil organic matter-a review» (PDF). Elsevier. Environment International. 30 (6): 855–870. PMID 15120204. doi:10.1016/j.envint.2004.02.003. Consultado em 4 de janeiro de 2019. As a whole, BC represents between 1 and 6% of the total soil organic carbon. It can reach 35% in Terra Preta Oxisols (Brazilian Amazonia) (Glaser et al., 1998, 2000) up to 45 % in some chernozemic soils from Germany (Schmidt et al., 1999), and up to 60% in black Chernozem from Canada (Saskatchewan) (Ponomarenko and Anderson, 1999)

Gonzalez-Perez, Jose A.; Gonzalez-Vila, Francisco J.; Almendros, Gonzalo; Knicker, Heike (2004). «The effect of fire on soil organic matter-a review» (PDF). Elsevier. Environment International. 30 (6): 855–870. PMID 15120204. doi:10.1016/j.envint.2004.02.003. Consultado em 4 de janeiro de 2019. As a whole, BC represents between 1 and 6% of the total soil organic carbon. It can reach 35% in Terra Preta Oxisols (Brazilian Amazonia) (Glaser et al., 1998, 2000) up to 45 % in some chernozemic soils from Germany (Schmidt et al., 1999), and up to 60% in black Chernozem from Canada (Saskatchewan) (Ponomarenko and Anderson, 1999)

Krug, Edward C.; Hollinger, Steven E. (2003). «Identification of Factors that Aid Carbon Sequestration in Illinois Agricultural Systems» (PDF). Champaign, Illinois: Illinois State Water Survey. p. 10. Consultado em 6 de janeiro de 2019. Cópia arquivada (PDF) em 9 de agosto de 2017. While humus (especially in organomineral form) helps give soils a black color (Duchaufour, 1978), the literature shows correlation between forest and grassland soil color to BC - the blacker the soil the higher its BC content (Schmidt and Noack, 2000)

Krug, Edward C.; Hollinger, Steven E. (2003). «Identification of Factors that Aid Carbon Sequestration in Illinois Agricultural Systems» (PDF). Champaign, Illinois: Illinois State Water Survey. p. 10. Consultado em 6 de janeiro de 2019. Cópia arquivada (PDF) em 9 de agosto de 2017. While humus (especially in organomineral form) helps give soils a black color (Duchaufour, 1978), the literature shows correlation between forest and grassland soil color to BC - the blacker the soil the higher its BC content (Schmidt and Noack, 2000)