Browsing by Author "Addad, D."

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Does Earthworms Density Really Modify Soil's Hydrodynamic Properties In Irrigated Systems With Recycled Water?
    (University of Eloued جامعة الوادي, 2016-05-01) Ababsa, N.; Kribaa, M.; Addad, D.; Tamrabet, L.; Baha, M.
    Our study has the general objective to understand the impact of the valuation of treated water on earthworm abundance and total porosity of the soil and the effect of the interaction between these two physical-biological components of the hydrological functioning of soils. It was carried out on the meadows soils of the valley of Wadi Bousselam. Although the treated water has high organic and particulate filler, it improved the earthworm abundance, total porosity and hydraulic conductivity of the soil.
  • No Thumbnail Available
    Item
    IMPACT OF EARTHWORM ACTIVITY ON THE CHEMICAL FERTILITY OF IRRIGATED SOIL WITH URBAN EFFLUENTS
    (University of Eloued جامعة الوادي, 2017-09-01) Addad, D.; Kribaa, M.; Ababsa, N.; Tamrabet, L.; Hafidi, M.; El Fels, L.; Benmahammed, A.
    The reuse of urban effluents to irrigate the soils of peri-urban grasslands in the vicinity of the town of Setif (northeastern Algeria) is an old and widespread practice. In this context, the present study was conducted to evaluate the effect of the irrigation with urban effluents on the biological and chemical behavior of soils. Effluents analysis showed significant organic and particulate pollution, the latter contributed to earthworm abundance and increased the richness of irrigated soils with nutrients. The analysis of turricules revealed the role of earthworms through the activity of bioturbation in the increase of the rate of organic matter as well as in the bioavailability of the nutrients of the irrigated soils. In space, permanent vegetation cover has played an important role as a biofilter. This was confirmed by the inter-site differences recorded through the measured variables particularly organic ones.