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N2O emission in livestock production: a meta-analysis study

Grant number: 18/10432-9
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): July 01, 2018
Effective date (End): December 31, 2019
Field of knowledge:Agronomical Sciences - Agronomy - Soil Science
Principal Investigator:John Joseph Sheehan
Grantee:Bruna Rabello de Souza
Home Institution: Faculdade de Engenharia Agrícola (FEAGRI). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:14/26767-9 - Global Sustainable Bioenergy initiative: geospatial & environmental analysis of pastureland intensification for bioenergy, AP.SPEC
Associated scholarship(s):19/14333-8 - Infield N2O emissions in sheep grazing systems, BE.EP.IC

Abstract

The specific objective of the present work is to perform a meta-analysis study evaluating greenhouse gases emission in livestock systems. The main greenhouse gases due anthropogenic activities are carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). The global warming potential of N2O is 298 times higher than CO2. Moreover the N2O is the main substance depleting ozone layer in this century. The agriculture sector is the main contributor of N2O, in which the livestock systems correspond to 40% of total N2O emitted in agriculture due animal manure deposition on soil. The present work aim to understand the N2O emissions from livestock systems, related to climate, soil properties and management. Moreover will be possible to quantify the reduction in N2O emissions due better practices, aiming to improve sustainability metrics of livestock production.