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

Srinivasarao, CH and Sudha Rani, Y and Girija Veni, V and Sharma, K L and Maruthi Sankar, G R and Prasad, J V N S and Prasad, Y G and Sahrawat, K L (2016) Assessing village-level carbon balance due to greenhouse gas mitigation interventions using EX-ACT model. International Journal of Environmental Science and Technology, 13 (1). pp. 97-112. ISSN 1735-1472

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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).

Item Type:	Article
Divisions:	Research Program : Asia
CRP:	CGIAR Research Program on Dryland Systems
Uncontrolled Keywords:	CO2 emissions, EX-ACT model, Agriculture, Carbon balance, Climatic smart practices
Subjects:	Others > Climate Change
Depositing User:	Mr Ramesh K
Date Deposited:	07 Jan 2017 12:12
Last Modified:	07 Jan 2017 12:12
URI:	http://oar.icrisat.org/id/eprint/9835
Official URL:	http://dx.doi.org/10.1007/s13762-015-0788-z
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	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.
Links:	Google Scholar

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