Publikasi Penelitian

Penerapan Parameter Sedimentasi Dan Indeks Erosi Untuk Evaluasi Kesehatan DAS Pada Formasi Batuan Sedimen Dan Vulkanik


Abstrak (Indonesia):
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Abstract (English) :
One of the evaluations in determining the impacts of watershed management activities was by finding out the sediment yield that indicated the erosion in upland. Erosion and sedimentation at two geological formation shapes give different yield. Geological formations will affect the soil characteristics and then will produce different soil erodibility. This research was conducted by comparing watersheds, which have different types in geological formation, first - the watersheds with sedimentary geological formation and second - watersheds with volcanic rock formation. The collected data were precipitation, discharge, and suspension discharge in the year 1991 to 2000. Parameter used to evaluate the catchment health of sedimentation indicators for sedimentary geological formation were 0.5 = good, 0.5-1 = moderate, and >1 = bad; for volcanic rock formation were <1 = good, 1-2 = moderate, and >2 = bad; and erosion index (EI) indicators were <1 = good and >1 = bad. The results of this research indicated that : 1) Sedimentation rate on sedimentary geological formation was relatively less than on volcanic rock formation, 2) Sedimentation rate on both geological formations were categorized “bad”, 3) The average erosion index in the last ten years indicated that watershed on volcanic rock formation have an erosion index better than on sedimentary geological formation, 4) The average erosion index in the last ten years at both geological formations were categorized “bad” (EI>1).
Media Publikasi :
Prosiding Seminar "Monitoring dan Evaluasi Pengelolaan DAS"
Penulis :
Sukresno, Yonky I
Ukuran Berkas :
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