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Journal : Journal of Tropical Soils

Land Use Planning of Way Betung Watershed for Sustainable Water Resources Development of Bandar Lampung City Yuwono, Slamet Budi; Sinukaban, Naik; Murtilaksono, Kukuh; Sanim, Bunasor
JOURNAL OF TROPICAL SOILS Vol 16, No 1: January 2011
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2011.v16i1.77-84

Abstract

Way Betung watershed is one of the important water resources in Lampung Province and it provides a clean water for Bandar Lampung City through a regional water supply company (PDAM). By the increase of population and economical activities of Bandar Lampung City, the need of clean water also increase, however by the time, the conditions of Way Betung watershed as water resources are declining. Therefore, to improve or to restore WayBetung watershed, a high cost is needed. The research was aimed: (a) to study the effects of Way Betung watershed land use change on the water resources of Bandar Lampung City, (b) to arrange the sustainable development of Way Betung watershed in order to maintain the availability of water resources. The sustainable developments of water resources of Way Betung watershed were arranged in five alternatives/scenarios and each alternative was related toits erosion (USLE method) and its run off volume (SCS method). The results showed that land use changes of Way Betung watershed (1991-2006) were likely to increase daily maximum discharge (Q max), to decrease daily minimum discharge (Q min), to increase fluctuation of river discharge, and to increase yearly run off coeffcient. The best sustainable development of water resources of Way Betung watershed, Lampung Province, was alternative/scenario-4 (forest as 30% of watershed areas + alley cropping in the mix garden). This alternative will decrease erosion to the level lower than tolerable soil loss and also decrease fluctuation of monthly run off.Keywords: Land use change, run off coefficient, water resources, watershed
Konversi Hutan Menjadi Lahan Usahatani Karet dan Kelapa Sawit serta Pengaruhnya terhadap Aliran Permukaan dan Erosi Tanah di DAS Batang Pelepat . Sunarti; Naik Sinukaban; Bunasor Sanim; Suria Darma Tarigan
JOURNAL OF TROPICAL SOILS Vol 13, No 3: September 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i3.253-260

Abstract

Forest conversion to some land use happened in all watershed, includes Batang Pelepat watershed. The objectives of this research are to know effect of forest conversion to land of rubber (Hevea brasiliensis) and palm oil (Elaeis guinensis Jack) farming on run off and soil erosion and different of erosion rate on agro technology of rubber and palm oil farming in Batang Pelepat watershed. The research was carried out during 3 months, begin October to December 2006. Run off and soil erosion measured plot with gutter in the lower of plot. Experimental design for this research is randomized complete block design, with land use type as treatment and slope class as replication or block. Data analyzed statistically by variance analysis (F-test) and Duncan New Multiple Range Test on confidence 95% (α = 0.05). The results of this research show that area of forest coverage in Batang Pelepat watershed was decreasing. In 1986 this area still 94,50% of watershed area, but in 1994 area of forest only 78,17% and in 2006 forest area 64,20% of watershed area. Forest conversion was carried out to land of rubber and palm oil farming with some actual agro technologies. Land of monoculture rubber I resulted the highest run off and soil erosion more than the other land use type and showed different of run off and soil erosion on land of secondary forest. 
Konversi Hutan Menjadi Lahan Usahatani Karet dan Kelapa Sawit serta Pengaruhnya terhadap Aliran Permukaan dan Erosi Tanah di DAS Batang Pelepat Sunarti, .; Sinukaban, Naik; Sanim, Bunasor; Tarigan, Suria Darma
JOURNAL OF TROPICAL SOILS Vol. 13 No. 3: September 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i3.253-260

Abstract

Forest conversion to some land use happened in all watershed, includes Batang Pelepat watershed. The objectives of this research are to know effect of forest conversion to land of rubber (Hevea brasiliensis) and palm oil (Elaeis guinensis Jack) farming on run off and soil erosion and different of erosion rate on agro technology of rubber and palm oil farming in Batang Pelepat watershed. The research was carried out during 3 months, begin October to December 2006. Run off and soil erosion measured plot with gutter in the lower of plot. Experimental design for this research is randomized complete block design, with land use type as treatment and slope class as replication or block. Data analyzed statistically by variance analysis (F-test) and Duncan New Multiple Range Test on confidence 95% (α = 0.05). The results of this research show that area of forest coverage in Batang Pelepat watershed was decreasing. In 1986 this area still 94,50% of watershed area, but in 1994 area of forest only 78,17% and in 2006 forest area 64,20% of watershed area. Forest conversion was carried out to land of rubber and palm oil farming with some actual agro technologies. Land of monoculture rubber I resulted the highest run off and soil erosion more than the other land use type and showed different of run off and soil erosion on land of secondary forest. 
Land Use Planning of Way Betung Watershed for Sustainable Water Resources Development of Bandar Lampung City Yuwono, Slamet Budi; Sinukaban, Naik; Murtilaksono, Kukuh; Sanim, Bunasor
JOURNAL OF TROPICAL SOILS Vol. 16 No. 1: January 2011
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2011.v16i1.77-84

Abstract

Way Betung watershed is one of the important water resources in Lampung Province and it provides a clean water for Bandar Lampung City through a regional water supply company (PDAM). By the increase of population and economical activities of Bandar Lampung City, the need of clean water also increase, however by the time, the conditions of Way Betung watershed as water resources are declining. Therefore, to improve or to restore WayBetung watershed, a high cost is needed. The research was aimed: (a) to study the effects of Way Betung watershed land use change on the water resources of Bandar Lampung City, (b) to arrange the sustainable development of Way Betung watershed in order to maintain the availability of water resources. The sustainable developments of water resources of Way Betung watershed were arranged in five alternatives/scenarios and each alternative was related toits erosion (USLE method) and its run off volume (SCS method). The results showed that land use changes of Way Betung watershed (1991-2006) were likely to increase daily maximum discharge (Q max), to decrease daily minimum discharge (Q min), to increase fluctuation of river discharge, and to increase yearly run off coeffcient. The best sustainable development of water resources of Way Betung watershed, Lampung Province, was alternative/scenario-4 (forest as 30% of watershed areas + alley cropping in the mix garden). This alternative will decrease erosion to the level lower than tolerable soil loss and also decrease fluctuation of monthly run off.Keywords: Land use change, run off coefficient, water resources, watershed
Co-Authors . Erwidodo . Kuntjoro AA Sudharmawan, AA Aang Munawar Abdul Kohar Mudzakir Ade Supandi Ade Supandi Adityawarman, Yudha Adler Hayman Manurung Agus Maulana Agus Wahyudi Ahmad Saifi Athoillah Ahmad Saifi Athoillah Aida Ratna Zulaiha Aisa Rurkinantia Amri Jahi Amril Aman Amru, M Kadafi Amzul Rifin Ana Yuliana Jasuni Ardianto, Luky Arief Daryanto Arief Daryanto Arief Daryanto Arief Daryanto Asep Kurnia Hidayat ASEP SAEFUDDIN Bambang S. Kusmuljono Bambang Trenggono Bimahri Qaulan Tsaqiela Bonar M Sinaga, Bonar M Bonar M. Sinaga Budi Suharjo DADANG DADANG Dadang Dadang Deden Kurniawan Dedi Budiman Hakim Dewayany Sutrisno, Dewayany Djati Kerami Djoni Hartono Dominicus Savio Priyarsono Dudi S. Hendrawan Dwi Rachmina Dwi Widodo Primantoro Dyan Vidyatmoko Dyan Vidyatmoko Eddi Wahyudi Eddi Wahyudi, Eddi Eriyatno . Erliza Noor Ernan Rustiadi Etty Riani Gendut Suprayitno Gunawan Sumodiningrat Hendra Wijaya Heny K Daryanto Hermanto Siregar Hermanto Siregar hidayati, iik yani Irawadi Jamaran Jaka Suyana Jaka Suyana Joko Sutrisno JOKO SUTRISNO Kukuh Murtilaksono La Baco S Latifa Hanum Leo Cahya Trias Putra Rachman Lilik Noor Yuliati Lukman M Baga Luky Adrianto Luluk Sulistiyono Luluk Sulistiyono M Parulian Hutagaol M Yanuar J Purwanto M. Parulian Hutagaol M. Said Didu M. Yanuar J. Purwanto M. Yogi Riyantama Isjoni Mahruddin Harahap Marimin , Mawardi Ps Bagindo Mawardi, Muhammad Ikhwanuddin Mercky Haryo Minto Yuwono Muhammad Fahrudin Muhammad Firdaus muhammad Firdaus Muhammad Firdaus Muhammad Firdaus Mulyono S. Baskoro Muryani Muryani Naik Sinukaban Naik Sinukaban Naik Sinukaban Naik Sinukaban Nunung Nuryartono Primasti Ramadhani Rahmat Ingkadijaya Rina Oktaviani Rina Oktaviani Rita Nurmalina Rita Nurmalis Riza Rahmanu Rudi C. Tarumingkeng Rudy C. Tarumingkeng Rui Andriano, Rui Safril Kemala Sampor Ali Santun R.P. Sitorus SANTUN R.P. SITORUS Setiadi Djohar Shally Alpriany Aisyah Slamet Budi Yuwono Slamet Hariadi Soekmana Soma Soepanto Soemokaryo Soesilo Hadimartono, Soesilo Sri Haryati Sugeng H. Wisudo Suharjo, Budi, Dr.Ir. MS Sulastri Sulastri Sumardjo Sunarti Sunarti Sunarti Sunarti Suria Darma Tarigan Surjono H. Sutjahjo Sutopo, Muhammad Fauzi Sutrisno Ali Syamsiar, Syamsiar Teguh Saptono Tobing, Adil Ujang Sumarwan Vidyatmoko, Dyan Widadi W. Widayat Wiwiek Rindayati Yadi Suryadi Yandra Arkeman Yusman Saukat, Yusman Yusman Syaukat Yuwono Minto Yuwono, Minto Zaim Uchrowi