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Spatial variability of CO2 emission associated bacterial communities and soil properties in area of sugar cane

Grant number: 14/03634-3
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): October 01, 2014
Effective date (End): February 28, 2017
Field of knowledge:Agronomical Sciences - Agronomy - Soil Science
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal researcher:Newton La Scala Júnior
Grantee:Mara Regina Moitinho
Home Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

Studies on the composition and physiology of microbial communities in soils are key in understanding how microorganisms such influence and are influenced by the environment, especially in agricultural areas. The populations of microorganisms have an essential role in recycling the chemical elements in the soil, for example by controlling the dynamic of stabilization and decomposition of carbon, and therefore, the patterns of spatial and temporal variability of soil CO2 emission to the atmosphere. In this sense, the objective of this work was: (I) estimate and compare by using molecular techniques based on metagenomic studies the diversity genetic and functional of bacteria in soil cultivated with sugar cane from systems managements harvest green cane and burned, and area of reform of the cane field (II) characterize the spatial and temporal variability of soil CO2 emission and its relation to the microbiological results and the physical and chemical properties of soil in the evaluated systems. The experiment was conducted in separate areas: sugar cane from green cane managements systems and burned cane, both adjacent to a third area with native vegetation, which was included in the study as a reference of the original soil condition. The last corresponds to an area of reform of the sugar cane field without vegetation and with conventional tillage. Being analyzed: the emission of CO2, temperature and soil moisture, as well as the attributes physico-chemical and microbiological in both areas. The diversity of bacterial communities will be analyzed by metagenomic studies. The variability of the data will be analyzed using descriptive statistics, analysis of variance and nonlinear regression. And the spatial dependence using geostatistical techniques applied to all study variables. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MOITINHO, MARA REGINA; TEIXEIRA, DANIEL DE BORTOLI; BICALHO, ELTON DA SILVA; PANOSSO, ALAN RODRIGO; FERRAUDO, ANTONIO SERGIO; PEREIRA, GENER TADEU; TSAI, SIU MUI; FERRARI BORGES, BEATRIZ MARIA; LA SCALA, NEWTON. Soil CO2 emission and soil attributes associated with the microbiota of a sugarcane area in southern Brazil. SCIENTIFIC REPORTS, v. 11, n. 1, . (14/03634-3)
MOITINHO, MARA REGINA; FERRAUDO, ANTONIO SERGIO; PANOSSO, ALAN RODRIGO; BICALHO, ELTON DA SILVA; TEIXEIRA, DANIEL DE BORTOLI; BARBOSA, MARCELO DE ANDRADE; TSAI, SIU MUI; FERRARI BORGES, BEATRIZ MARIA; CANNAVAN, FABIANA DE SOUZA; MARCONDES DE SOUZA, JACKSON ANTONIO; et al. Effects of burned and unburned sugarcane harvesting systems on soil CO2 emission and soil physical, chemical, and microbiological attributes. CATENA, v. 196, . (11/51749-6, 14/03634-3)
DA SILVA, ELIENAI FERREIRA; MOITINHO, MARA REGINA; TEIXEIRA, DANIEL DE BORTOLI; BICALHO, ELTON DA SILVA; FERREIRA CASTIONI, GUILHERME ADALBERTO; PEREIRA, GENER TADEU; LA SCALA JR, NEWTON. Short-term spatiotemporal variation of soil CO(2)emission, temperature, moisture and aeration in sugarcane field reform areas under the influence of precipitation events. SOIL USE AND MANAGEMENT, v. 36, n. 4, p. 658-670, . (14/03634-3)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MOITINHO, Mara Regina. Variability of soil CO2 emission under different management systems in sugarcane areas. 2017. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.

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