@article{fdi:010086937, title = {{W}hat drives wind erosion in cropped areas ? {A} case study in southern {T}unisia}, author = {{B}ouet, {C}hristel and {L}abiadh, {M}. {T}. and {P}ierre, {C}. and {S}ekrafi, {S}. and des {T}ureaux, {T}. {H}. and {L}tifi, {M}. and {B}ergametti, {G}. and {M}articorena, {B}. and {T}oure, {A}. {A}. and {R}ajot, {J}ean-{L}ouis}, editor = {}, language = {{ENG}}, abstract = {{D}ust emission by wind erosion is a worldwide phenomenon that threatens sustainable development and population wellness in areas where anthropogenic activities develop. {H}owever, uncertainties on the current estimates of dust originating from agricultural activities remain high. {T}his study aims at disentangling the respective roles of meteorology, surface properties, and human practices in the dynamics of wind erosion over croplands. {T}herefore, an experimental field campaign was conducted in a traditionally cultivated barley field in southern {T}unisia during the agricultural year 2015-2016. {M}eteorological parameters (wind speed and direction, rainfall), surface characteristics (barley surface cover and height), and the horizontal flux of aeolian sediments were measured. {L}and management was also documented. 97% of the wind erosion fluxes occurred between mid-{M}ay and {N}ovember 2016. {T}his was explained by the seasonal cycle of barley crop, land management, and meteo-rological conditions: (i) in autumn, the soil surface sufficiently wet to allow barley growth is tilled, which creates clods that increase the soil surface roughness and inhibits wind erosion, (ii) late winter coincides with the period of the highest wind speed but the height of the barley, maximal in this period, prevents wind erosion, and (iii) the field surface left bare and trampled at the end of harvest in spring is totally prone to wind erosion. {T}his study highlights the importance of accounting for the joint seasonality of the meteorological parameters, vegetation cover, and human practices when studying wind erosion. {N}eglecting one of these parameters can induce a net overestimation/underestimation of wind erosion by the models.}, keywords = {{W}ind erosion ; {H}ordeum vulgare {L} ; {G}rowing season ; {S}altation flux ; {A}erodynamic roughness length ; {T}unisia ; {TUNISIE}}, booktitle = {}, journal = {{C}atena}, volume = {223}, numero = {}, pages = {106964 [16 p.]}, ISSN = {0341-8162}, year = {2023}, DOI = {10.1016/j.catena.2023.106964}, URL = {https://www.documentation.ird.fr/hor/fdi:010086937}, }