Variabilidade espacial de atributos do solo e emissão de CO2 em uma pedossequência sob pastagem no Cerrado

• Ano de defesa: 2014
• Autor(a) principal: Mikhael, Joseph Elias Rodrigues
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Uberlândia; BR; Programa de Pós-graduação em Agronomia; Ciências Agrárias; UFU
• Palavras-chave em Português: Mapas; Transição; Carbono e Geoestatística; Geologia - Métodos estatísticos; Solos - Análise; Carbono; Maps; Transition; Carbon and Geostatistics; CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
• Link de acesso: https://repositorio.ufu.br/handle/123456789/12202; https://doi.org/10.14393/ufu.di.2014.323

Precision Agriculture is a tool available to the producer that allows visualization of the spatial variability of edaphoclimatic factors in each agricultural area, considering the peculiarities of each one at the management time. The change from a purely descriptive phase of geological phenomena to a quantitative approach is remarkable. This process of transformation is based on three main factors: the introduction of the concept of mathematical models to explain geological phenomena, the integration of the geological phenomena, and access to digital computers. This study mapped the spatial pattern of CO2 emission in an area of a pedological sequence under pasture, where a variation of moisture content occurs, and correlate it with the spatial patterns of carbon input, soil bulk density and porosity. The spatial distribution maps clearly showed, following the slope, a gradual transition between soil aerobic condition and the hydromorphism one.