Editing IPCC:AR6/SRCCL/Chapter-5 (section)

=== 5.4.2 Greenhouse gas emissions from croplands and soils ===

<div id="section-5-4-2-greenhouse-gas-emissions-from-croplands-and-soils-block-1"></div>

Since AR5, a few studies have quantified separate contributions of crops and soils on the one hand, and livestock on the other, to the total emissions from agriculture and associated land use. For instance, Carlson et al. (2017) <sup>[[#fn:r689|689]]</sup> estimated emissions from cropland to be in the range of 2–3 GtCO <sub>2</sub> -eq yr <sup>-1</sup> , including methane emissions from rice, CO <sub>2</sub> emissions from peatland cultivation, and N <sub>2</sub> O emissions from fertiliser applications. Data from FAOSTAT (2018) <sup>[[#fn:r690|690]]</sup> , recomputed to use AR5 GWP values, indicated that cropland emissions from these categories were 3.6 ± 1.2 GtCO <sub>2</sub> -eq yr <sup>–1</sup> over the period 2010–2016. Two-thirds of this were related to peatland degradation, followed by N <sub>2</sub> O emissions from synthetic fertilisers and methane emissions from paddy rice fields (Tubiello 2019) <sup>[[#fn:r691|691]]</sup> . These figures are a subset of the total emissions from agriculture and land use reported in Table 5.4. Asia, especially India, China and Indonesia accounted for roughly 50% of global emissions from croplands. Figure 5.9 shows the spatial distribution of emissions from cropland according to Carlson et al. (2017) <sup>[[#fn:r692|692]]</sup> , not including emissions related to deforestation or changes in soil carbon.

<div id="section-5-4-2-greenhouse-gas-emissions-from-croplands-and-soils-block-2"></div>

<span id="figure-5.9"></span>
<!-- START IMG -->
<!-- IMG TITLE -->
'''Figure 5.9'''

<span id="cropland-ghgs-consist-of-ch4-from-rice-cultivation-co2-n2o-and-ch4-from-peatland-draining-and-n2o-from-n-fertiliser-application.-total-emissions-from-each-grid-cell-are-concentrated-in-asia-and-are-distinct-from-patterns-of-production-intensity-carlson-et-al.-2017."></span>
<!-- IMG CAPTION -->
'''Cropland GHGs consist of CH4 from rice cultivation, CO2, N2O, and CH4 from peatland draining, and N2O from N fertiliser application. Total emissions from each grid cell are concentrated in Asia, and are distinct from patterns of production intensity (Carlson et al. 2017).'''
<!-- IMG FILE -->
[[File:d57a239ac8c5d09076adf93bcd243517 Figure-5.9-1024x446.jpg]]

Cropland GHGs consist of CH <sub>4</sub> from rice cultivation, CO <sub>2</sub> , N <sub>2</sub> O, and CH <sub>4</sub> from peatland draining, and N <sub>2</sub> O from N fertiliser application. Total emissions from each grid cell are concentrated in Asia, and are distinct from patterns of production intensity (Carlson et al. 2017).

<!-- END IMG -->
<span id="greenhouse-gas-emissions-from-livestock"></span>