SEDIMENTATION RATE ESTIMATION FROM COMMUNITY LAND USE IN MAMASA WATERSHED (Pendugaan Laju Sedimentasi dari Setiap Penggunaan Lahan o/eh Masyarakat di Daerah A/iran Sungai Mamasa)
| Main Author: | Perpustakaan UGM, i-lib |
|---|---|
| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2012
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/29134/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=12197 |
Daftar Isi:
- In the last few years, the hydrology function of Mamasa Watershed could not be performed optimally in maintaining sustainability of Bakaru Dam, it is indicated by the occurrence of floods in the rainy and contrary water shortage in dry season. To prevent further damage the land-use management is needed in the watershed. Geographical Information System (GIS) has ability to process and analyze data/information, by combining the data/information in form of map/digital picture, thus an analysis of watershed degradation could be done. For erosion impact study on the increasing of sedimentation rate. the estimation of soil loss capacity could be obtained by calculating and overlaying maps of MUSLE components. Using GIS method, it was found that sedimentation rate from forest land use was 46,55 m3/km2/year, paddy field 10,26 m3/km2/year, underbush 1934,28 m3/km2/year, mixed agriculture 66,42 m3/km2/yearand dry land agriculture 954,18 m3/km2/year.