Rim Zitouna-Chebbi

Rim Zitouna-Chebbi
Institut National de Recherche en Génie Rural, Eaux et Forêts (INRGREF) | INRGREF · LRVENC

PhD

About

50
Publications
6,141
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
340
Citations
Additional affiliations
June 2002 - present

Publications

Publications (50)
Chapter
Because of the strong expected effects of climate change on water resources and food production it is important to use efficiently, as well as sustainable, water for agriculture production including both components rainfed “green water” and irrigated “blue water”. This is particularly important in the Cap Bon region northeastern Tunisia, where irri...
Article
Full-text available
The French critical zone initiative, called OZCAR (Observatoires de la Zone Critique–Application et Recherche or Critical Zone Observatories–Application and Research) is a National Research Infrastructure (RI). OZCAR-RI is a network of instrumented sites, bringing together 21 pre-existing research observatories monitoring different compartments of...
Article
Full-text available
To account for the diversity of agricultural and ecosystem situations in hilly Mediterranean areas, the agro-hydrological observatory OMERE (Observatoire Mediterraneen de l'Environnement Rural et de l'Eau) monitors two farmed catchments-one in northern Tunisia and the other in southern France. Mediterranean regions are typified by a highly variable...
Article
Full-text available
Estimating evapotranspiration in hilly watersheds is paramount for managing water resources, especially in semiarid/subhumid regions. The eddy covariance (EC) technique allows continuous measurements of latent heat flux (LE). However, time series of EC measurements often experience large portions of missing data because of instrumental malfunctions...
Article
Full-text available
Understanding the temporal and spatial variability of soil moisture is fundamentalfor improving the management of water and soil resources on rainfed agrosystems.The present study focused on the soil moisture (SM) patterns observed in a hillyrainfed agrosystem. We analyzed five datasets from measurement at 15 sites duringvarious crop growth cycles...
Article
Full-text available
There is a strong need for long term observations of land surface fluxes such as actual evapotranspiration (ETa). Eddy covariance (EC) method is widely used to provide ETa measurements, and several gap-filling methods have been proposed to complete inherent missing data. However, implementing gap-filling methods is questionable for EC time series c...
Chapter
Agricultural production systems around the Mediterranean basin rely mostly on rainfed agriculture in hilly watersheds, although some irrigation is sustained downstream of water reservoirs. With climate change and increasing demand for water, most commonly cultivated species, particularly cereals, are exposed to high risks of water shortages during...
Article
Full-text available
Estimating evapotranspiration in hilly watersheds is paramount for managing water resources, especially in semi-arid regions. Eddy covariance (EC) technique allows continuous measurements of latent heat flux LE. However, time series of EC measurements often experience large portions of missing data, because of instrumental dysfunctions or quality f...
Article
Full-text available
There is a strong need for long term observations of land surface fluxes, especially the latent heat flux (λE), or actual evapotranspiration (ETa), a key component of both the surface energy balance and the hydrological cycle. The eddy covariance (EC) method is widely used to provide measurements of land surface fluxes. However, missing data are in...
Conference Paper
Full-text available
There is a strong need for long term observations of land surface fluxes, especially the latent heat flux (λE), or actual evapotranspiration (ETa), a key component of both the surface energy balance and the hydrological cycle. The eddy covariance (EC) method is widely used to provide measurements of land surface fluxes. However, missing data are in...
Chapter
Full-text available
Several methods allow the determination of evapotranspiration (ET), either by direct measurement or by estimation from weather data. The most used estimation method is the FAO56 (FAO-PM), based on the concept of reference evapotranspiration (ETo) and crop coefficient (Kc). The eddy covariance technique (EC) developed for measurement of convective f...
Article
In Tunisia, citrus is suffering from water scarcity and increasing salinity. Its water consumption should be well documented to allow the optimization of irrigation management. Evapotranspiration measurements by Eddy covariance method are trustable and widely used nowadays but its application to small areas with windbreaks is questionable. In Cap B...
Article
Numerous citrus cultivars are cultivated in Tunisia. The lack of information on water requirements under local conditions and the possible varietal differences in the response to soil water status is noticed. This study aims at assessing the irrigation scheduling using FAO method and crop coefficients, under local conditions for different orange cu...
Article
Productivity of peach cultivars with different ripening seasons was studied under the growers’ conventional conditions of Tunisia. Experiments were performed in northern Tunisia (36° 41ʹ N, 10° 15ʹ E). Performances of Flordastar, Royal Glory, and Carnival as respectively early, mid-season, and late ripening cultivars were evaluated under the grower...
Conference Paper
Full-text available
Water and soil resources of Mediterranean agrosystems are strongly influenced by global change. The sustainable management of these resources requires innovative strategies from field to territory scales. Our knowledge and understanding about factors influencing hydrological cycle is still weak and deficient, which hampers the implementation of int...
Conference Paper
Full-text available
Within Mediterranean rural areas, soil and water resources are facing increasing pressures in relation to changes in anthropogenic and climate forcing. Current strategies for resource management have to be redesigned in order to mitigate existing competitions and to propose adaptation solutions. New strategies to be explored include the combination...
Article
As agricultural hilly watersheds are widespread throughout the world, there is a strong need for reliable estimates of land surface fluxes, especially evapotranspiration, over crop fields on hilly slopes. In order to obtain reliable estimates from eddy covariance (EC) measurements in such conditions, the current study aimed at proposing adequate pl...
Article
Full-text available
In semiarid agrosystems, improving management of soil and water resources requires developing reliable means for characterizing the temporal dynamics of soil water balance in a spatially distributed manner. The purpose of this study is to analyze soil water balance in relation to natural drivers (i.e. rainfall and soil properties) and anthropogenic...
Article
Full-text available
Dans la région méditerranéenne, la connaissance des besoins en eau des cultures est primordiale, pour une gestion rationnelle des ressources en eau. L’évapotranspiration réelle (ETR) peut être estimée par plusieurs méthodes de mesures ou de modélisation. La méthode des covariances turbulentes (EC) a l’avantage de permettre la mesure directe même si...
Article
Soil temperature is one of the most important factors affecting the rate of water and nutriments uptake by vegetation during the season of active growth. It influences also the various physiochemical and biological processes concerning plant residues following crop harvest. This study investigates temperature changes and heat fluxes within the top...
Article
Non-growing seasons and/or dry periods are very important for the water and energy balances and require a better understanding allowing a realistic description and prediction of hydrologic, agronomical and environmental processes. The main objective of this study is: i) to assess the differences in both energy and water balances during wheat crop a...
Article
Soil moisture is an important variable of the water and energy balances and for the understanding of the global change. This work focuses on the investigation of interactions between the spatiotemporal variability of soil moisture and soil surface temperature. The main objective is to assess the relationship between soil moisture and soil surface t...
Article
Long-term effects of deficit irrigation on yield and water productivity of peach trees (Prunus persica L., cv. Carnival) grown in a semi-arid climate in northern Tunisia (36841’N, 10815’E) were investigated. Continuous deficit irrigation (Di I-II-III) was compared with the grower’s irrigation programme (Control). The effects of Di I-II-III on yield...
Article
The current study addressed the consistency of eddy covariance (EC) measurements collected in sloping conditions within a hilly agricultural catchment. In the context of operational monitoring and modelling devoted to decision support, it is important to increase the knowledge of surface fluxes under conditions of hilly topography. The two-metre-hi...
Article
Estimation of daily and seasonal actual evapotranspiration (ETa) is strongly needed for hydrological and agricultural purposes. Although the eddy covariance method is well suited for such estimation of land surface fluxes, this method suffers from limitations when establishing long time series. Missing data are often encountered, resulting from bad...
Article
Determining land surface evapotranspiration within hilly watersheds is paramount for environmental and agricultural issues. Indeed, such topographic structures are widely spread within orographic regions over the world, whereas they allow water harvesting for crop production under water shortage conditions. Eddy covariance (EC) techniques have been...
Conference Paper
The study aims at identifying and quantifying the main hydrological processes in stream flow generation in a small Mediterranean agricultural catchment over time scale ranging from the storm event to the water year. The study site, the Kamech catchment, is located in Northern Tunisia, and belongs to the Environmental Research Observatory OMERE (www...
Article
Full-text available
In the Maghreb and North African regions, the interannual climate variability causes severe impacts on agriculture through long drought episodes. Impacts are expected to increase due to projected climate change. Decreasing water availability will have a direct impact on the agriculture sector and could endanger the socioeconomic development and soc...
Thesis
Sur la rive sud de la Méditerranée, les zones de relief sont le siège d’une intensification des activités agricoles, leurs structurations permettant la captation des eaux de ruissellement. Les enjeux sont l’adaptation à une demande alimentaire croissante et le maintien des populations locales. Au regard de ces pressions anthropiques, conjuguées ave...
Article
Many research studies have shown the effect of irrigation restriction on peach annual fruit growth and production. This paper presents results obtained over five years. The work was carried out in a commercial orchard near Tunis. Drip irrigated 4-year old trees of the late cultivar 'Carnival' planted at 3x6m spacing were used. The local climate is...
Article
The effect of watering restrictions on yield and quality of peaches of the late producing cultivar «Carnival»has been studied. The experiment was carried out in a production orchard located in Mornag near Tunis which has 555 trees/ha and was grown using a vase system. Ratios between total water supplied and Penman-Monteith reference evapotranspirat...

Network

Cited By

Projects

Projects (2)
Project
ALTOS objective is to improve water management models for rainfed and irrigated agriculture, by considering the modulation of spatial structures and connectivities induced by hydro-agricultural infrastructures and practices, as an innovative tool for rational use / protection of water resources.