CONTRIBUTION TO THE STUDY OF RUNOFF AND EROSION OF LOW SLOPE HOMOGENEOUS HYDROLOGICAL UNITS OF A WATERSHED OF THE MIDDLE VALLEY OF MEDJERDA TUNISIA

R. RIAHI, H. BELAID, A. HATIRA, S. BACCOUCHE

Abstract


The rainfall simulation tests on homogeneous hydrological units soil samples of a Medjerda middle valley watershed show that the characteristics of the upper surface soil layer and types of management practices as well as the rain characteristics (duration, intensity frequency) control the infiltration-runoff process and determine later the rain aggressiveness degree.

The hydrological responses of the same hydrological unit are different. That was related to the tillage practices types.

The increasing of the intensity of agricultural practices causes intense soil biodegradation (low organic matter content less than 2%) and distracts consequently its structural stability, thus favors rain aggressiveness process. Indeed, a plowed soil exposed to rainfall of intensity of 54 mm / h loses 3.31 g of soil corresponding to 0.13 kg / m2 of specific erosion whereas soil sample of olive trees the loss is equal to 2.24 g and the specific erosion is about 0.1 Kg / m2.


Keywords


rainfall simulation, rain aggressiveness, runoff coefficient, runoff, soil.

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BAHRI A.A., PONTANIER R., DRIDI B. (1989). Conséquences des façons culturales en fin de saison sèche sur le régime hydrique et d’érosion des terres du Kairouanais. (Étude expérimentale a l’aide du simulateur de pluies. sidi ben salem). Sols de Tunisie : séminaire national sur les terres a céréales (thibar - 10 - 11 Décembre 1986), No13, pp.45 -67.

Al KARKOURI J., ROOSE E., LAOUINA A., SABIR M. (2000). État de surface, infiltration et risque d'érosion dans la Vallée de Béni Boufroh. Bulletin Réseau Erosion, No 20, pp. 342-356.

BARNETT AP., ROGERS JS. (1966). Soil physical properties related la runoff and erosion from artificial rainfall Trans ASAE, Vol. 9, No1, pp. 123-125.

BARTHES B., ALBRECHT A., ASSELINE J., DENONI G., ROOSE E. (1999). Relationship between sail erodibility and topsoil aggregate stability or carbon content in a cultivated Mediterranean highland (Aveyron, France), Analysis, Vol. 30, Issue 13-14, ,pp. 1929-1938.

BARTHES B., ROOSE E. (2002). Aggregate stability os on indicator of soil susceptibility to runoff and erosion validation at several levels Catena, Vol. 47, Issue 2, pp. 133.149.

BELAID H. (2015). Processus de l’érosion en milieu semi aride de Tunisie .Thèse de doctorat, INAT. Tunisia.

BRADFORD JM., HUANG CH. (1994). Inlerrill soil erosion os affected by tillage and residue cover. Soil & Tillage Research, Vol. 31, Issue 4, pp. 353-361

CHAKER M., El ANNASSI H., LAOUINA A. (1996). Montagne, piémont, plaine : investir dans les techniques de CES au Maroc oriental. In Reij C, Scoones I, T Tolmin P, Editions.Techniques traditionnelles de conservation de l’eau et des sols en afrique Paris : CTA/CDCE ; Karthala, pp.75-86.

CNEA. (2008). Etude sur l’état de la désertification pour une gestion durable des RN en Tunisie. Rapport de la troisième phase. 122 p.

COGO N.P., Moldenhauer W.C., FOSTER G.R. (1984). Soil loss reductions from conservation tillage practices. Soil Science Society of American Journal, Vol. 48, No2, pp. 368-373.

DE NONI G., VIENNOT M. (1998). Étude des facteurs de l'érosion hydrique sur des versants volcaniques cultivés. Une réponse à une demande de développement. Bulletin - Réseau Erosion, Vol.18, pp. 437-449

DGRE. (2007). Optimisation des réseaux de suivi des ressources en eau en Tunisie : Etude de la pluviographie. Direction Générale des Ressources en Eau.

DIRECTION GENERALE DES RESSOURCES EN EAU (DGRE). (1900- 2013). Données pluviométriques de béja, Tunisia.

DRISSA D el al. (2004).Comparaison entre stabilité des agrégats ou des mottes et risques de ruissellement et d'érosion en nappe mesurés sur parcelles en zone soudanienne du Mali. Sécheresse, Vol .15, No1, pp. 57-64.

HUDSON NW. (1992). Land Husbandry London, Bastfard. 192p.

JIN K., CORNELIS W.M., GABRIELS D., SCHIETTECATTE W., DE NEVE S., LU J., BUYSSE T., WU H., CAI D., JIN J., HARMANN R. (2008). Soil management effects on runoff and soil loss from field rainfall simulation, Catena, Vol.75, Issue 2, pp. 191–199.

KINNELL P. I. A. (2005). Raindrop-impact-induced erosion processes and prediction: a review, Hydrological Processes, Vol..19, No14, pp. 2815–2844.

KOSMAS C., DANALATOS N., CAMMERAAT L.H., CHABART M., DIAMANTOPOULOS J., FARAND R., GUTIERREZ L., JACOB A., MARQUES H., MARTINEZ-FERNANDEZ J., MIZARA A., MOUSTAKAS N., NICOLAU J.M., OLIVEROS., PINNA G., PUDDU R., PUIGDEFABREGAS J., ROXO M., SIMAO A.,STAMOU G.,TOMASI N., USAI D., VACCA A .(1997).The effect of land use on runoff and soil erosion rates under Mediterranean conditions, CATENA,Vol.29, Issue 1, pp. 45-59.

LAL R. (2002). Soil carbon sequestration in China through agricultural intensification, and restoration of degraded and decertified ecosystems, Land Degradation and Development, Vol. 13, No6.pp.469–478.

LUK H.S. (1985).Effect of antecedent soil moisture content on rainwash erosion, CATENA, Vol.12, Issues 2–3, pp. 129-139.

MAMEDOV A.L., LEVY G..J., SHAINBERG I., LETEY J. (2001).Wetting rate and soil texture effect on infiltration rate and runoff. Australia Journal of Soil Research Vol.36, No6, pp. 1293–1305.

MOSTAGHIMI S., DILLAHA T.A., SHANHOLTZ V.O. (1988). Influence of tillage systems and residue levels on runoff, sediment, and phosphorus losses. Transactions of the American Society of Agricultural Engineers, Vol.31, N1, pp. 128–132.

POESEN J. (1987). The role of slope angle in surface seal formation. In : Gardner V, èd. International Geomorphology Il. Actes de la conférence de Manchester.437-48.

RODIER J.A et al. (1981). Monographie hydrologique ORSTOM le bassin de la Mejerdah, .472 p.

ROOSE E. (1981). Dynamique actuelle des sols Ferralitiques et ferrugineux tropicaux d'Afrique occidentale. Travaux et documents de l'Orstom, Paris: Orstom.569 p.

ROOSE E. (1983). Ruissellement et érosion avant et après défrichement en fonction du type de culture en Afrique·occidentale, Cahier Orstom, Série Pédologie, Vol. XX, No4, pp.327·339.

ROOSE E.. (1994). Introduction à la gestion conservatoire de l'eau, de la biomasse et de la fertilité des sols (GCES). Rome : FAO, (70), 438 p. (Bulletin Pédologique de la FAO ; 70). ISBN 92-5-203451-X.

ROOSE E., ARABI M., BRAHAMI A., CHEBBANI R., MAZOUR M., MORSLI B. (1993). Erosion en nappe et ruissellement en montagne méditerranéenne d’Algérie, synthèse de 50 parcelles .Cahier Orstom Série Pédologie. Vol. XXVlJI, No2, pp.289-308.

SABIR M., MERZOUK A., BERKAT 0 ., ROOSE E. (1994). Effet du pâturage sur l'état de surface, l'infiltrabilité et la détachabilité du sol dans un milieu pastoral aride (Aarid, Haule Moulauya, Maroc). XIII" Congrés international du génie rural, 2-6 février 1998, ANAFID, Rabat Bulletin du Réseau Érosion, Vol .14, pp.444-462.

SUD YC., YANG R., WALKER GR. (1996). Impact of in situ deforestation in Amazonia on the regional climate: general circulation model simulation study, Journal of Geophysical Research :Atmospheres, Vol..101, Issue D3, pp. 7095-7109.

TISDALL JM., OADES JM. (1982). Organic matter and water stable aggregation in soils. Journal of soil sciences, Vol.33, Issue 2, pp.141-163.

UIJLENHOET R., STRICKER J. N. M. (1999). A consistent rainfall parameterization based on the exponential raindrop size distribution. Journal of Hydrology, Vol.218, Issue 3-4, pp. 101 - 127.

WEST LT., MILLER WP., LANGDALE GW., BRUCE RR., LAFLEN JM., THOMAS AW.(1991).Cropping system effects on Interrill soil lass in the Georgio piedmont, Soil, Science Social of American Journal, Vol. 55, No2, pp.460-466.

YAIR A., KOSSOVSKY A. (2002). Climate and surfaces proprieties: hydrological response and small arid and semi arid watershed, .Geomorphal, Vol .42, Issue 1-2, pp.43-57.


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