@article{fdi:010018981, title = {{R}elationship between soil erodibility and topsoil aggregate stability or carbon content in a cultivated {M}editerranean highland ({A}veyron, {F}rance)}, author = {{B}arth{\`e}s, {B}ernard and {A}lbrecht, {A}lain and {A}sseline, {J}ean and {D}e {N}oni, {G}eorges and {R}oose, {E}ric}, editor = {}, language = {{ENG}}, abstract = {{I}n the {R}ougiers de {C}amar{\`e}s area (in the south of {F}rance), hillslopes are very susceptible to water erosion. {T}his is the result of physical features (steep slopes, soft bedrocks, thin soils), climatic aggressiveness (frost, storms), as well as farming systems (intensive tillage, short crop cycles, land consolidation). {T}he objective of this work was to study the relationships between soil erodibility, macroaggregate stability, and carbon content of surface samples (0-10 cm), in a {R}ougiers {E}ntisol ({L}ithic {U}dorthent) under various management practices (flat or raised moldboard ploughing, superficial tillage, direct drilling, with inputs in the form of mineral fertilzers or sheep manure. {T}he soil erodibility was assessed by field rainfall simulation (60 mm/h) on manually retilled bare dry soil; water-table macroaggregation (greater than 0.2 mm) was assessed by wet-sieving, after immersion in water. {R}unoff, turbidity and soil losses were linked to water-stable macroaggregation and carbon content in the 0-10 cm layer. {D}uring the first 30 minutes of rainfall, runoff and soil losses were closely correlated with topsoil initial water-stable macroaggregation, but not with topsoil carbon content (although there was a correlation between water-stable macroaggregation and carbon content). {A}t the end of the rain (runoff steady state), turbidity and soil losses were closely correlated with topsoil carbon content, and to a lesser extent, with water-stable macroaggregation. {W}ater-stable macroaggregation (which prevents crusting) and carbon content (which has an effect upon liquidity limit, among others) were thus important determining factors of erodibility for the studied soil. {T}he influence of management practices on soil erodibility was therefore dependent upon their effects on these factors. ({R}{\'e}sum{\'e} d'auteur)}, keywords = {{ERODIBILITE} {DU} {SOL} ; {SOL} {CULTIVE} ; {EROSION} {HYDRIQUE} ; {AGREGAT} ; {STABILITE} {STRUCTURALE} ; {CARBONE} {ORGANIQUE} ; {SIMULATION} {DE} {PLUIE} ; {FRANCE} ; {AVEYRON} ; {ROUGIERS} {DE} {CAMARES} {REGION}}, booktitle = {}, journal = {{C}ommunications in {S}oil {S}cience and {P}lant {A}nalysis}, numero = {}, pages = {1929--1938}, ISSN = {0010-3624}, year = {1999}, DOI = {10.1080/00103629909370343}, URL = {https://www.documentation.ird.fr/hor/fdi:010018981}, }