THE EFFECT OF WATERSHED ENVIRONMENTAL CONDITIONS AND LANDUSE ON SEDIMENT YIELD IN ALO-POHU WATERSHED

The research carried out in alo-pohu watershed gorontalo province aims at identifying the effect of watershed conditions and land use on the amount sheet erosion, sediment yield and sediment delivery ratio. It is also intended to develop them in a spatio-temporal distribution, and give recommendatio...

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Main Author: Perpustakaan UGM, i-lib
Format: Article
Published: [Yogyakarta] : Universitas Gadjah Mada 2009
Subjects:
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author Perpustakaan UGM, i-lib
author_facet Perpustakaan UGM, i-lib
author_sort Perpustakaan UGM, i-lib
collection UGM
description The research carried out in alo-pohu watershed gorontalo province aims at identifying the effect of watershed conditions and land use on the amount sheet erosion, sediment yield and sediment delivery ratio. It is also intended to develop them in a spatio-temporal distribution, and give recommendation for management of environmental condition and land use in alo-pohu watershed to prevent damage erosion and sediment. Data on environmental condition and land use were collected by interpreting landsat images and topography map. Data on surface erosion were obtained by means of direct measurement using 10 erosion plots placed in the land units. Data on sediment were obtained by collecting water samplesfrom the upper course, middle course, and lower course of the rivers. Data on sheet erosion and.sediment yield were analyzed in a spatio-temporal manner using geographic information systems (gis) and effect of watershed conditions and land utilization on sheet erosion, sediment yield, and sediment delivery ratio are tested using double regression analysis. The research results suggest significant effect of watershed conditions and land use on sheet erosion. the largest amount of erosion very likely occurred in wasteland (bero land) with steep slopes whereas the least amount of erosion was found in undergrowth with flat slope (0-8%). the amount of sheet erosion was 122.24 ton/ha/year. sediment yield in alo-pohu was affected to a large extent by runoff rate, the width of watershed, percentage of wasteland, and drainage density.
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spelling oai:generic.eprints.org:277592014-06-18T00:24:23Z https://repository.ugm.ac.id/27759/ THE EFFECT OF WATERSHED ENVIRONMENTAL CONDITIONS AND LANDUSE ON SEDIMENT YIELD IN ALO-POHU WATERSHED Perpustakaan UGM, i-lib Jurnal i-lib UGM The research carried out in alo-pohu watershed gorontalo province aims at identifying the effect of watershed conditions and land use on the amount sheet erosion, sediment yield and sediment delivery ratio. It is also intended to develop them in a spatio-temporal distribution, and give recommendation for management of environmental condition and land use in alo-pohu watershed to prevent damage erosion and sediment. Data on environmental condition and land use were collected by interpreting landsat images and topography map. Data on surface erosion were obtained by means of direct measurement using 10 erosion plots placed in the land units. Data on sediment were obtained by collecting water samplesfrom the upper course, middle course, and lower course of the rivers. Data on sheet erosion and.sediment yield were analyzed in a spatio-temporal manner using geographic information systems (gis) and effect of watershed conditions and land utilization on sheet erosion, sediment yield, and sediment delivery ratio are tested using double regression analysis. The research results suggest significant effect of watershed conditions and land use on sheet erosion. the largest amount of erosion very likely occurred in wasteland (bero land) with steep slopes whereas the least amount of erosion was found in undergrowth with flat slope (0-8%). the amount of sheet erosion was 122.24 ton/ha/year. sediment yield in alo-pohu was affected to a large extent by runoff rate, the width of watershed, percentage of wasteland, and drainage density. [Yogyakarta] : Universitas Gadjah Mada 2009 Article NonPeerReviewed Perpustakaan UGM, i-lib (2009) THE EFFECT OF WATERSHED ENVIRONMENTAL CONDITIONS AND LANDUSE ON SEDIMENT YIELD IN ALO-POHU WATERSHED. Jurnal i-lib UGM. http://i-lib.ugm.ac.id/jurnal/download.php?dataId=10822
spellingShingle Jurnal i-lib UGM
Perpustakaan UGM, i-lib
THE EFFECT OF WATERSHED ENVIRONMENTAL CONDITIONS AND LANDUSE ON SEDIMENT YIELD IN ALO-POHU WATERSHED
title THE EFFECT OF WATERSHED ENVIRONMENTAL CONDITIONS AND LANDUSE ON SEDIMENT YIELD IN ALO-POHU WATERSHED
title_full THE EFFECT OF WATERSHED ENVIRONMENTAL CONDITIONS AND LANDUSE ON SEDIMENT YIELD IN ALO-POHU WATERSHED
title_fullStr THE EFFECT OF WATERSHED ENVIRONMENTAL CONDITIONS AND LANDUSE ON SEDIMENT YIELD IN ALO-POHU WATERSHED
title_full_unstemmed THE EFFECT OF WATERSHED ENVIRONMENTAL CONDITIONS AND LANDUSE ON SEDIMENT YIELD IN ALO-POHU WATERSHED
title_short THE EFFECT OF WATERSHED ENVIRONMENTAL CONDITIONS AND LANDUSE ON SEDIMENT YIELD IN ALO-POHU WATERSHED
title_sort effect of watershed environmental conditions and landuse on sediment yield in alo pohu watershed
topic Jurnal i-lib UGM
work_keys_str_mv AT perpustakaanugmilib theeffectofwatershedenvironmentalconditionsandlanduseonsedimentyieldinalopohuwatershed
AT perpustakaanugmilib effectofwatershedenvironmentalconditionsandlanduseonsedimentyieldinalopohuwatershed