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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Ilmu Pertanian Indonesia Jurnal Penyuluhan Forum Pasca Sarjana Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Sains Tanah EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Naik Sinukaban
Department of Soil Science and Land Resources, Faculty of Agriculture, Bogor Agriculture Institute
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Environmental Science Mathematics

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Journal : forum pasca sarjana

 1 
Land rehabilitation of post-mining must be done with reforestation. Reforestation success in post-mining revegetation should to refer the characteristics of natural forests.  The success of the reforestation is expected to reach a climax forest ecosystem.  How much time is needed to achieve the desired condition (success reforestation), in this case described as the age of achievement expectations of reforestation success to reach a climax forest ecosystem (the basalt area).  The research is aim Nining Puspaningsih; Kukuh Murtilaksono; Naik Sinukaban; I Nengah Surati Jaya; Yadi Setiadi
Forum Pasca Sarjana Vol. 33 No. 4 (2010): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

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Land rehabilitation of post-mining must be done with reforestation. Reforestation success in post-mining revegetation should to refer the characteristics of natural forests.  The success of the reforestation is expected to reach a climax forest ecosystem.  How much time is needed to achieve the desired condition (success reforestation), in this case described as the age of achievement expectations of reforestation success to reach a climax forest ecosystem (the basalt area).  The research is aimed to predict reforestation success age.  The study used regression analysis for determining the reforestation success age in mining area.  The measure used to determining the reforestation success age is basalt area (LBDS) of natural forests.  Mathematically it can be summarized to LBDS = f (age).  The study found the age of achievement expectations of reforestation success is 75 years.  Over the 75 years when the efforts to improve, protect and enhance forest functions are be done well, consistently, and even continued to rise, certainly reforestation success will be achieved, or even faster.   Key words: rehabilitation, mining area, reforestation, basalt area, reforestation success age
Sustainable agriculture development requires a high quality and proper land management in order to promote high farmer’s income and to prevent natural  resources degradation. This research was conducted in Nopu sub-watershed, a sub sub Gumbasa watershed, Central Sulawesi Province. The erosion and surface run off were observed by placing erosion plots on various ages of cocoa land uses (monoculture and agroforestry), whiles the soil quality indicators were observed by analyzing the physical and c Anthon Monde; Naik Sinukaban; Kukuh Murtilaksono; Nora H. Pandjaitan
Forum Pasca Sarjana Vol. 31 No. 3 (2008): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

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Sustainable agriculture development requires a high quality and proper land management in order to promote high farmer’s income and to prevent natural  resources degradation. This research was conducted in Nopu sub-watershed, a sub sub Gumbasa watershed, Central Sulawesi Province. The erosion and surface run off were observed by placing erosion plots on various ages of cocoa land uses (monoculture and agroforestry), whiles the soil quality indicators were observed by analyzing the physical and chemical properties of soil samples, which were collected from various  ages of cocoa land use. The soil profile  permeability and soil surface coverage were directly observed on the field. Production and farmer’s income of various cocoa land use systems in Nopu watershed were collected by using questioners.  Sustainable management of cocoa (monoculture and agroforestry) was formulated by using various scenarios. Results of the study showed that 1) forest conversion into cocoa land use decreased soil quality degradation, tended to increase soil erosion and run off; 2) to establish a sustainable cocoa farming system in Nopu watershed, there should be practiced a proper and equilibrium fertilization, application of adequate soil and water conservation techniques such as mulching and construction of ditches closed (rorak) and  ridges (sengkedan).   Key words:  cocoa, erosion, farmer’s income, forest conversion, soil quality
One major river flowing through Bekasi City is Bekasi river. Total extent of the Bekasi watershed is about 39.045 ha, in 2002 with rainfall of 250 mm for 8 hours caused about 138 ha flooded in residents area for 2-3 days in Bekasi City, more extremely in 2005 with rainfall only 127 mm  for 6 hours caused about 164 ha flooded in residents area for 3 days.  This evidence showed that flood problem in Bekasi City is become worse, and seem to be more horrifying in the future. Therefore, the flood pro Trihono Kadri; Naik Sinukaban; Hidayat Pawitan; Suria Darma Tarigan
Forum Pasca Sarjana Vol. 34 No. 1 (2011): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

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One major river flowing through Bekasi City is Bekasi river. Total extent of the Bekasi watershed is about 39.045 ha, in 2002 with rainfall of 250 mm for 8 hours caused about 138 ha flooded in residents area for 2-3 days in Bekasi City, more extremely in 2005 with rainfall only 127 mm  for 6 hours caused about 164 ha flooded in residents area for 3 days.  This evidence showed that flood problem in Bekasi City is become worse, and seem to be more horrifying in the future. Therefore, the flood problem needs an extremely great attention.  The objectives of the research is (1) analysis watershed condition; (2) analysis of the causes of flood over Bekasi City from the perpective of hydrology and hydraulic; (3) plan of Bekasi watershed management to reduce flood risk in Bekasi City.  To obtain the purposes of this research, the method of analysis is devided into four main subjects: (1) analysis of watershed condition using SCS method; (2) hydrology analysis using hydrology modeling HEC-HMS; (3) river flow capacity using hydraulic modeling HEC-RAS and (4) plan of scenarios to reduce flood risk.  There are four scenarios to overcome the flood problems: (1) similarly with government plan 2010;(2) managing Bekasi watershed area with conservation tillage; (3) build water retarded structure entire of  watershed and;(4) combination of second and third scenarios.  The research results shown that river flow capacity only 462 m3/s is not enough to flow the discharges, otherwise the land use is change and increasing the run off in upstream.  Based on the problems, it is expected to overcome the flood problem by managing Bekasi watershed area with conservation tillage and build water retarded structure.  It will reduce 28.58% of the discharge run off in 2020.   Key words: flood, land use changing, watershed management
Co-Authors . Sudarmo Andi Nuddin Anthon Monde Aris Munandar Boanerges Silvanus Daerari Damanik Bunasor Sanim Enni Dwi Wahyunie Hadi S Alikodra Hidayat Pawitan I Nengah Surati Jaya Indung Sitti Fatimah Jaka Suyana Kholil Kholil Kukuh Murtilaksono La Baco S MARIA BINTANG Nining Puspaningsih Nora H. Pandjaitan Saiful Akhyar Lubis Suria Darma Tarigan Trihono Kadri Yadi Setiadi