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Erosion Prediction And Conservation Planning In The Bubuh Sub -Watershed, Bangli Regency

Author

Listed:
  • Yessy Sismaka BR Purba

    (Universitas Udayana, Denpasar, INDONESIA)

  • I Nyoman Puja

    (Universitas Udayana, Denpasar, INDONESIA)

  • Made Sri Sumarniasih

    (Universitas Udayana, Denpasar, INDONESIA)

Abstract

Geoelectric survey employing Vertical Electrical Sounding (VES) was carried out in order to assess the groundwater repositories. A total of seven soundings were obtained with their layer resistivity, thickness and depth within the maximum electrode separation. The geoelectric parameters obtained were used to estimate the Dar-Zarrouk parameters (longitudinal conductance and transverse resistance), hydraulic conductivity and transmissivity. The result shows the aquifer resistivity ranging from 77.14 to 784.76 Ωm, with thickness ranging from 28.78 to 80.04 m. The longitudinal conductance have values ranging from 0.071 to 0.825 Ω-1 while the values of hydraulic conductivity and transmissivity range from 1.087 to 5.881 m/day and 60.180 to 374.031 𝑚2/day respectively. The contour maps generated show the variation of these parameters across the subsurface, and areas with poor protective capacity were delineated. The results also delineate the groundwater potential of the study area as moderate, while the corrosivity rating indicates non-corrosive and slightly corrosive.

Suggested Citation

  • Yessy Sismaka BR Purba & I Nyoman Puja & Made Sri Sumarniasih, 2020. "Erosion Prediction And Conservation Planning In The Bubuh Sub -Watershed, Bangli Regency," Water Conservation & Management (WCM), Zibeline International Publishing, vol. 4(2), pages 102-104, August.
    • Handle: RePEc:zib:zbnwcm:v:4:y:2020:i:2:p:102-104
    DOI: 10.26480/wcm.02.2020.102.104
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