@article{fdi:010092824, title = {{A}ssessment of soil integration in nationally determined contributions and guidance for quantifying ex-ante soil organic carbon stock changes in national policies using {IPCC} default methodologies}, author = {{S}chiettecatte, {L}. {S}. and {T}zamtzis, {I}. and {C}hotte, {J}ean-{L}uc and {C}rumpler, {K}. and {P}roenca, {C}. and {S}alvatore, {M}. and {S}initambirivoutin, {M}. and {W}iese, {L}. and {B}ernoux, {M}artial}, editor = {}, language = {{ENG}}, abstract = {{B}y 2025, {P}arties will have to submit to the {U}nited {N}ations {F}ramework {C}onvention on {C}limate {C}hange ({UNFCCC}) a new or updated nationally determined contribution ({NDC}), with more ambitious climate commitments as compared to the previous one. {I}t is thus expected that {P}arties will raise their ambition regarding their actions on {GHG} emissions reductions and carbon removals, which in the land sector focus on the living biomass, dead organic matter and soil organic matter pools. {T}his study aimed at understanding how soils and their management practices are integrated into the current {NDC}s, and how this information might be used to quantify ex-ante climate change mitigation potential. {T}his study found that while some actions provide sufficient level of information to quantify their climate change mitigation potential using the {IPCC} tier 1 methodologies, thus default carbon stocks values (biomass and soil), few {P}arties actually included this data in their {NDC}s. {H}owever, this study provided examples of such tier 1 quantification using the {N}ationally {D}etermined {C}ontribution {E}xpert tool ({NEXT}) in ex-ante analyses. {T}his type of ex-ante analyses is considered to be a starting point for discussions and collaboration between policy makers and technical experts involved in formulating {NDC}s and developing national greenhouse gas inventories. {T}hese analyses are also essential for improving data collection, increasing accuracy (thus decreasing uncertainties), strengthening credibility and feasibility, and paving the way for enhancing environmental ambitions and building countries' capacities.}, keywords = {{C}arbon stocks ; {GHG} emissions ; {S}oil ; {N}ationally determined contribution ; {N}ational greenhouse gas inventories}, booktitle = {}, journal = {{C}atena}, volume = {252}, numero = {}, pages = {108805 [12 p.]}, ISSN = {0341-8162}, year = {2025}, DOI = {10.1016/j.catena.2025.108805}, URL = {https://www.documentation.ird.fr/hor/fdi:010092824}, }