@article{fdi:010071789, title = {{L}inking spatialized indicators of desertification risks with observed land use/land cover change : an operational monitoring system of desertification}, author = {{F}etoui, {M}. and {L}oireau, {M}aud and {E}ssifi, {B}. and {C}houikhi, {F}. and {T}arhouni, {M}. and {S}ghaier, {M}. and {L}aques, {A}.{E}. and {D}{\'e}rioz, {P}.}, editor = {}, language = {{ENG}}, abstract = {{T}he need of useful information for decision-makers to fight against desertification in {T}unisian dry zones leads to conceive assessing and monitoring systems that can supply synthetic indicators. {T}hese latter should integrate socioeconomic and environmental dimensions with their spatial and temporal diversity at the local scale. {T}his paper proposes an example of information system entitled {SIELO} (information system for operational desertification monitoring at the local scale). {T}his system attempts to create the link between i) spatialized indicators of desertification risks, built in connection with the systematic complexity of desertification and ii) observed {L}and {U}se/ {L}and {C}over ({LU}/{LC}) {C}hange. {T}he first type of data arises from pre-existing environmental model: {LEIS} model ({L}ocal {E}nvironmental {I}nformation {S}ystem). {T}he second type of data is extracted from satellite images acquired according to regular time steps. {T}he proposed approach is based also on the spatializing of knowledge, via the "landscape" tool in particular. {W}e illustrate the feasibility and the operational effectiveness of a developed software prototype ({SIELO} v1.0) with an initial application in a {T}unisian dry zone. {T}his system showed that it has the capacity to feed an operational monitoring of desertification according to the state of {LU}/{LC} directly observed or measured in several dates. {T}hen, it can be useful for the decision-makers in their programs of fighting against desertification, but also to manage uncertainties in southeastern {T}unisia, especially climate variability and climate change.}, keywords = {{DESERTIFICATION} ; {UTILISATION} {DU} {SOL} ; {SURFACE} {DU} {SOL} ; {TELEDETECTION} {SPATIALE} ; {CLIMAT} ; {OBSERVATOIRE} ; {SYSTEME} {D}'{INFORMATION} {GEOGRAPHIQUE} ; {AIDE} {A} {LA} {DECISION} ; {CHANGEMENT} {CLIMATIQUE} ; {GESTION} {DU} {RISQUE} ; {TUNISIE} ; {ZONE} {ARIDE} ; {MEDENINE}}, booktitle = {}, journal = {{J}ournal of {E}arth {S}cience and {C}limatic {C}hange}, volume = {6}, numero = {1}, pages = {art. no 1000252 [5 en ligne]}, ISSN = {2157-7617}, year = {2015}, DOI = {10.4172/2157-7617.1000252}, URL = {https://www.documentation.ird.fr/hor/fdi:010071789}, }