The reducing effect of aglime on N 2 O and CO 2 emissions balance from an acidic soil: A study on intact soil cores - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles European Journal of Soil Science Year : 2023

The reducing effect of aglime on N 2 O and CO 2 emissions balance from an acidic soil: A study on intact soil cores

Abstract

The functioning of the nitrous oxide (N 2 O) reductase enzyme involved in the last step of denitrification is pH sensitive, with an optimum of 6.8. A solution to mitigate N 2 O emissions would be to bring soil pH close to neutrality by adding agricultural liming products (aglime). Nevertheless, the influence of aglime on the soil greenhouse gas (GHG) balance (CO 2-N 2 O) is a subject of debate, particularly when considering the fate of the carbon (C) derived from carbonates. Our objective was to investigate the results of the effect of calcium carbonate (CaCO 3) aglime on the CO 2-N 2 O balance. Sixteen cylinders of undisturbed acidic soil were taken from a sandy loam profile and incubated at 20 C for 107 days in anaerobic conditions (waterfilled pore space >60%). Eight limed treatment cylinders received 1.45 g of aglime on the soil surface (2 t NV ha À1) and 0.08 g of N (100 kg of N ha À1).
Fichier principal
Vignette du fichier
European J Soil Science - 2023 - Rousset - The reducing effect of aglime on N2O and CO2 emissions balance from an acidic.pdf (2.59 Mo) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-04179719 , version 1 (10-08-2023)

Identifiers

Cite

Camille Rousset, Henri Brefort, Olivier Mathieu, Mustapha Arkoun, Catherine Hénault. The reducing effect of aglime on N 2 O and CO 2 emissions balance from an acidic soil: A study on intact soil cores. European Journal of Soil Science, 2023, 74 (2), ⟨10.1111/ejss.13367⟩. ⟨hal-04179719⟩
146 View
54 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More