PhD Thesis:
Greenhouse gases emissions in
sugarcane in Tucumán, Argentina:
incidence of trash burning and
nitrogen fertili...
One of the most important sources of
anthropogenic GHG emissions is
agriculture, producing 12-14% of the total
GHG generat...
Treatments

Native forest

Sugarcane without trash burning
after harvest
Without
nitrogen
fertilization

With
nitrogen
fer...
1.6 m
Closed vented chambers
Protocol from USDA-ARS GRACEnet (Parkin et al., 2010).

Close vented chambers
circular

Iron Anchor...
Measurements

Soil and air thermometers
Chronometer

Vacuum pump
Evacuated vials
Other Measurements

Detail of logger

Soil borer

Soil N-NO3 and N-NH4
content and humidity

Probes:
«Loggers»
Determination of soil microbial activity
Fluorescein diacetate hydrolysis method. (Schnürer J. et al ., 1982)
Flame ionization detector

CO2 and CH4

Electron capture detector

N2O

Gas Chromatography

Linear and non-linear
regressi...
Quantify GHG emissions from sugarcane in Tucumán, generating specific and local
emission factors. For this:
a) Determine t...
Regarding the proposed project under the CLIFF grant in 2014
Host institution: Center for International
Forestry Research ...
Thank you very much!!
Soil nitrate and ammonium contents.
Technique: distillation by steam

Brenmer, 1965; Keeney and Nelson, 1982
Greenhouse gases emissions in sugarcane in Tucumán, Argentina: Incidence of trash burning and nitrogen fertilization
Greenhouse gases emissions in sugarcane in Tucumán, Argentina: Incidence of trash burning and nitrogen fertilization
Greenhouse gases emissions in sugarcane in Tucumán, Argentina: Incidence of trash burning and nitrogen fertilization
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Greenhouse gases emissions in sugarcane in Tucumán, Argentina: Incidence of trash burning and nitrogen fertilization

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Presentation of Jorge Chalco Vera at 2013 Kick-Off workshop of the Climate Food and Farming Network: http://ccafs.cgiar.org/climate-food-and-farming-network

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Greenhouse gases emissions in sugarcane in Tucumán, Argentina: Incidence of trash burning and nitrogen fertilization

  1. 1. PhD Thesis: Greenhouse gases emissions in sugarcane in Tucumán, Argentina: incidence of trash burning and nitrogen fertilization. Ing. Agr. Jorge Chalco Vera EEA Famaillá INTA-CONICET ARGENTINA
  2. 2. One of the most important sources of anthropogenic GHG emissions is agriculture, producing 12-14% of the total GHG generated by humans (IPCC, 2006) 60 to 80% of the total emissions of N2O in the world comes from agricultural soils (Cameron et al., 2000; Wrage et al., 2004) Therefore, the study of fertilization is important. Argentinean agricultural and livestock sectors produce 44% of the total GHG emissions generated in the country Fundación Bariloche, 2005 However, these estimates were calculated using the international global factors proposed by IPCC, NOT WITH SPECIFIC LOCAL ONES.
  3. 3. Treatments Native forest Sugarcane without trash burning after harvest Without nitrogen fertilization With nitrogen fertilization Sugarcane with trash burning after harvest Without nitrogen fertilization With nitrogen fertilization
  4. 4. 1.6 m
  5. 5. Closed vented chambers Protocol from USDA-ARS GRACEnet (Parkin et al., 2010). Close vented chambers circular Iron Anchor Height (cm) Area (cm2) 15 201.1 Volum (cm3) 3015.9 PVC Headspace
  6. 6. Measurements Soil and air thermometers Chronometer Vacuum pump Evacuated vials
  7. 7. Other Measurements Detail of logger Soil borer Soil N-NO3 and N-NH4 content and humidity Probes: «Loggers»
  8. 8. Determination of soil microbial activity Fluorescein diacetate hydrolysis method. (Schnürer J. et al ., 1982)
  9. 9. Flame ionization detector CO2 and CH4 Electron capture detector N2O Gas Chromatography Linear and non-linear regression models are used to obtain the emissions factors.
  10. 10. Quantify GHG emissions from sugarcane in Tucumán, generating specific and local emission factors. For this: a) Determine the CO2, CH4 and N2O emission factors for sugarcane in Tucumán. b) Define the contribution of traditional agricultural practices of sugarcane (burning and fertilization) to GHG emissions. c) Compare the emissions in systems with different anthropogenic modifications (sugarcane cultivation) and a system without human disturbance (native forest). d) Determine the main soil, environmental and microbiological factors behind the emissions. e) Infer on possible crop management strategies that could serve as mitigation tools.
  11. 11. Regarding the proposed project under the CLIFF grant in 2014 Host institution: Center for International Forestry Research (CIFOR), Nairobi-Kenya Directed by: Mariana Rufino -Senior Scientist in Forest and Environment Advisor researcher: Klaus Butterbach-Bahl The objective is to evaluate the potential GHG emissions in soil chronosequence studies The idea is to do a research GHG emissions in sugarcane in western Kenya, where there is an ongoing project. I will work in the field and in the lab, and I will learn all the techniques to do sampling and analyses.
  12. 12. Thank you very much!!
  13. 13. Soil nitrate and ammonium contents. Technique: distillation by steam Brenmer, 1965; Keeney and Nelson, 1982
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