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Gaseous emissions from agricultural activities and wetlands in national capital territory of Delhi

Gurjar, BR, Nagpure, AS and Kumar, P (2015) Gaseous emissions from agricultural activities and wetlands in national capital territory of Delhi Ecological Engineering, 75. pp. 123-127.

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Abstract

Abstract This work aims to develop an emission inventory of methane (CH4), nitrous oxide (N2O), ammonia (NH3), nitrogen oxides (NO, NO2) and CO2 from various agricultural activities and wetlands in Delhi area using an emission factor and activity based approach between the years 2001 and 2011. Among all agricultural activities, livestock enteric fermentation (LEF) was found to be the main source, contributing up to 90% of total CH4. This is followed by livestock manure management (LMM) (6–7%), paddy field (3–5%) and burning of crop residue (0.6–0.9%). It was also found that LMM practices alone contributed ∼99.8% of total N2O emissions and ∼106–141 Gg of NH3 during 2001–2011. Crop residue burning was responsible for ∼41 Gg of annual average emissions of NOx over the period 2001–2011. Annual CH4 emissions from rice cultivation practices were found to be in the 560–634 Gg range during same period. N2O emission from crop residue burning and fertilizer were insignificant when compared with LMM practices. About 54 Gg, 1.5 Gg and 14 Mg of CO2, CH4 and N2O, respectively, were released by natural and manmade wetlands in Delhi during 2009 while manmade wetlands were found to be responsible for 48–49% of total GHG (CO2,CH4,N2O) emissions.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
AuthorsEmailORCID
Gurjar, BRUNSPECIFIEDUNSPECIFIED
Nagpure, ASUNSPECIFIEDUNSPECIFIED
Kumar, PUNSPECIFIEDUNSPECIFIED
Date : February 2015
Identification Number : 10.1016/j.ecoleng.2014.11.052
Uncontrolled Keywords : Greenhouse gas emissions, Enteric fermentation, Manure management, Agriculture activities, Megacity Delhi, India
Related URLs :
Additional Information : NOTICE: this is the author’s version of a work that was accepted for publication in Ecological Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Ecological Engineering, 75, February 2015, DOI 10.1016/j.ecoleng.2014.11.052.
Depositing User : Symplectic Elements
Date Deposited : 10 Dec 2014 17:49
Last Modified : 20 Dec 2014 14:33
URI: http://epubs.surrey.ac.uk/id/eprint/806920

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