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Assessing village-level carbon balance due to greenhouse gas mitigation interventions using EX-ACT model

  • Ch. SrinivasaraoEmail author
  • Y. Sudha Rani
  • V. Girija Veni
  • K. L. Sharma
  • G. R. Maruthi Sankar
  • J. V. N. S. Prasad
  • Y. G. Prasad
  • K. L. Sahrawat
Original Paper

Abstract

Under National Initiative on Climate Resilient Agriculture (NICRA) project, a range of climate smart agricultural practices were evaluated with on-farm demonstrations during 2011–2013 in eight climatically vulnerable villages of Andhra Pradesh, India. Proven climate smart practices viz residue recycling, soil, water and nutrient management, afforestation and feeding + breeding practices in livestock were implemented in annual and perennial crops, irrigated rice, horticulture, fodder, forestry and livestock. An EX-ante carbon-balance tool (EX-ACT) developed by the FAO was used with a combination of various climate smart interventions to know the mitigation potentials in eight climatically vulnerable villages of Andhra Pradesh, India. Based on our observations, EX-ACT model had shown that these practices were effective to mitigate CO2 emissions apart from enhancing soil productivity. In Nacharam, Yagantipalli, Sirusuwada and Matsyapuri villages, climate smart practices implemented in annual crops along with crop residue recycling, crop and water management practices resulted in negative carbon (C) balance by −16,410, −8851, −7271 and −6125 t CO2 e, respectively. The EX-ACT model predicted positive carbon balance with irrigated module in the rice-growing villages of Sirusuwada and Matsyapuri villages. The negative values suggest a sink, and positive values a source for CO2 emissions. In Chamaluru village, although there were CO2 emissions (source) due to livestock and non-forest and land use changes, there was a carbon sink due to other activities as predicted by the model. The results suggested that various climatic smart practices at the village level were successful in creating net sink of CO2 emissions (t CO2 e).

Keywords

CO2 emissions EX-ACT model Agriculture Carbon balance Climatic smart practices 

Notes

Acknowledgements

We sincerely thank the Indian Council of Agricultural Research (ICAR) for funding under National Initiative on Climate Resilient Agriculture (ICAR-NICRA: 4-3/2010-1.A.II) and Central Research Institute for Dryland Agriculture (CRIDA) for providing all the facilities. Authors would like to thank anonymous reviewers whose suggestions have contributed to the improvement of the manuscript significantly.

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Copyright information

© Islamic Azad University (IAU) 2015

Authors and Affiliations

  • Ch. Srinivasarao
    • 1
    Email author
  • Y. Sudha Rani
    • 1
  • V. Girija Veni
    • 1
  • K. L. Sharma
    • 1
  • G. R. Maruthi Sankar
    • 1
  • J. V. N. S. Prasad
    • 1
  • Y. G. Prasad
    • 1
  • K. L. Sahrawat
    • 2
  1. 1.Central Research Institute for Dryland AgricultureHyderabadIndia
  2. 2.International Crops Research Institute for Semi Arid TropicsPatancheru, HyderabadIndia

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