Levantamento de reconhecimento com apoio digital dos solos do município de Nazareno-MG

Horta, Ivana de Marco Fonseca; Pereira, José Aldo Alves; Marques, João José; Carvalho, Luís Madeira de

doi:10.1590/s1413-70542009000700042

Cited by 8 publications

(1 citation statement)

References 3 publications

(1 reference statement)

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“…The remarkable presence of aluminum sesquioxides in this Cambisol (Horta et al 2009) and its strong interaction with organic compounds (Heckman et al 2011) explains the association of these clay-sized minerals to organic vinasse compounds reducing water-dispersible clays.…”

Section: Resultsmentioning

confidence: 92%

“…The soil is classified as a Cambisol based on the International Soil Classification System (IUSS Working Group 2015) (Brazilian classification: Cambissolo Háplico; US Department of Agriculture classification: Inceptisol), and originates from pelitic rocks and quartzite (Horta et al 2009), under native pasture (Diandrostachya chrysotrix, Paspalum plicatulum, and Andropogon leucostachys). The soil was managed using annual burns to clear vegetation.…”

Section: Site and Soil Characterizationmentioning

confidence: 99%

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Physico-chemical attributes of a Cambisol under pasture managed with annual burns after sugarcane vinasse application

Melo

Ferreira

Navroski

et al. 2018

Int J Recycl Org Waste Agricult

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Purpose Sugarcane vinasse is generated in large amounts and can be utilized to improve soil attributes, especially in areas degraded by burns. The aim of the present study was to evaluate the effects of sugarcane vinasse on physico-chemical attributes of a Cambisol managed via annual burns. Methods Soil samples were collected from an annually burned area under pasture and used in an experiment in pots to evaluate the effects of dosages of vinasse (0, 18.8, 37.5, 56.3, 75.0, 112.5, and 150 ). The water-dispersible clay was reduced by the formation of bonds with organic matter, which overlapped the repulsive forces intensified by the increment of K + /(Ca 2+ + Mg 2+ ). The estimated vinasse dosage that provided the minimum water-dispersible clay (69 g kg −1 ) was 110 m 3 ha −1 . Conclusions Vinasse can be applied to improve the physico-chemical attributes of soils degraded by annual burns.

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“…In that sense, the use of geotechnologies such as GPS, digital maps, digital elevation models (DEM) and geographical information systems (GIS), along with modern geoprocessing techniques and tools, aid the production of greater scale soil maps, facilitating a more precise delimitation of the soil classes (McBratney;Mendonça-Santos;Minasny, 2003;Costa et al, 2009b;Horta et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Detailed soil survey of an experimental watershed representative of the Brazilian Coastal Plains and its practical application

Santos¹,

Curi

Silva

et al. 2014

Ciênc. agrotec.

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This paper presents a detailed soil survey of an experimental watershed with representative pedoclimatic characteristics of the Coastal Plains in Espírito Santo State and its practical applications. For the pedological survey, 35 observation sites and three soil profiles were sampled and described, which were morphologically characterized and subjected to physical (particle size) and chemical analyses (routine and sulfuric acid digestion). The soil map was made using the geographic information system ArcGIS 9.3. This GIS software was also used to generate the digital elevation model (DEM) for identifying the slope classes. SAGA software was used to calculate the topographic wetness index (WI) which aided in a more accurate separation of Haplic Organosol from other soils. The predominant soil class in the watershed was the dystrophic/dystrocohesive Yellow Argisol (97%), containing morphological, chemical and physical characteristics representative of the most expressive Coastal Plains soils. Geoprocessing tools and techniques aided to make the watershed soil map.Index terms: Soil map, geoprocessing, GIS. RESUMONeste trabalho, apresenta-se o levantamento detalhado de uma microbacia hidrográfica experimental representativa das características pedoclimáticas dos Tabuleiros Costeiros brasileiros e sua aplicação prática. Para o levantamento pedológico, foram descritos morfologicamente e amostradas 35 microtrincheiras e três perfis modais, cujas amostras foram submetidas a análises físicas (textura) e químicas (fertilidade e ataque sulfúrico). A confecção do mapa de solos foi realizada, utilizando-se o sistema de informação geográfica ArcGIS 9.3, no qual foi gerado o modelo digital de elevação (DEM) para a separação das fases de relevo. Utilizou-se também o programa SAGA GIS, para a geração do índice topográfico de umidade (WI) que auxiliou na separação mais precisa do Organossolo Háplico dos demais solos. A classe de solo predominante na microbacia foi o Argissolo Amarelo distrófico/ distrocoeso (97%), com características morfológicas, químicas e físicas representativas dos solos mais expressivos dos Tabuleiros Costeiros. Ferramentas e técnicas de geoprocessamento auxiliaram na confecção do mapa de solos da microbacia.Termos para indexação: Mapa de solos, geoprocessamento, SIG.

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Levantamento de reconhecimento com apoio digital dos solos do município de Nazareno-MG

Cited by 8 publications

References 3 publications

Physico-chemical attributes of a Cambisol under pasture managed with annual burns after sugarcane vinasse application

Detailed soil survey of an experimental watershed representative of the Brazilian Coastal Plains and its practical application

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