A global dataset of specialty crop biomass and N2O emissions

<div> <p>We reviewed global field studies of vineyard, orchard, and vegetable cropping systems, which were also included in a meta-analysis (<a href="https://doi.org/10.1111/gcb.17233">https://doi.org/10.1111/gcb.17233</a>). We narrowed down the studies to those with field measurements of adequate variables (biomass C, N, and N₂O) covering at least one growing season. As a result, cumulative N₂O emission measurements (per growing rotation, season, or year), along with biomass data of different plant organs from the same regions, were compiled for grape (<em>Vitis vinifera</em>), almond [<em>Prunus dulcis</em> (Mill.) D.A. Webb], peach (<em>Prunus persica</em> L.), walnut (<em>Juglans regia</em>), lettuce (<em>Lactuca sativa</em>), broccoli (<em>Brassica oleracea</em> var. <em>italica </em>P.), cauliflower (<em>Brassica oleracea</em> var. <em>botrytis </em>L.), and tomato (<em>Lycopersicon esculentum</em> L.) planting system. These observations were collected from fields spanning seven Koppen-Geiger climate types and five countries (the United States, Germany, Spain, France, and Australia). When only dry mass was measured, biomass C content for aboveground vegetable crops and berry fruit was assumed at 43%; nut fruit and woody organs of orchard tree at 48%. Area-weighted averages of N₂O emissions were used (tree/vine row and interrow).</p> <p>&nbsp;</p> <p>Corresponding author: Mu Hong (mu.hong@colostate.edu)</p> </div> <p>&nbsp;</p>