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Modeling of Forest and Land Fires Risk Level and Zone Using GIS in Kapuas Tengah Sub Basin, West Kalimantan Province Arianti, Iin; Sinukaban, Naik; Jaya, I Nengah Surati
JURNAL MANAJEMEN HUTAN TROPIKA Vol 13, No 2 (2007)
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jmht.13.2.

Abstract

In the last 2 decades, forest and land fires in Indonesia have become a serious problem at national, regional, and even international levels. The smoke of the fires gave a negative impact on human activities and health and in turn coused economical and social loss. In addition, the haze pollution has become a serious problem internationally. This study was conducted to establish a risk model of forest and land fire in Kapuas tengah watershed, Kalimantan Barat Province. The model was based on scoring and weighting of bio-phisycal and human activity factors. Rangking method and Composite Mapping Analysis (CMA) were used to establish the model. The result showed that the accuracy of model by ranking method to determine the risk level and zone of forest and land fire was only 62,4% in Kapuas Tengah watersheed. Therefore, the model was not good enough to represent actual condition in the field. The accuracy of model using CMA method could be used to determine risk level and zone of forest and land fire. The CMA method showed that the Kapuas Tengah watershed consisted of 1,051,029.4 ha high risk, 379,307.0 ha of moderate and 195,010.7 ha of low vulnerable. The risk map can be used for early warning system to prevent forest and land fires.Keywords: forest and land fires, composite mapping analysis, rangking method, fire risk map
Dampak Perambahan Hutan Taman Nasional Lore Lindu Terhadap Fungsi Hidrologi Dan Beban Erosi (Studi Kasus Daerah Aliran Sungai Nopu Hulu, Sulawesi Tengah) Hidayat, Yayat; Sinukaban, Naik; Pawitan, Hidayat; Tarigan, Suria Darma
Jurnal Ilmu Pertanian Indonesia Vol 12, No 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The research was proposed to identify rainforest conversion impact on hydrologic function and soil erosion, and its simulation using ANSWERS model. Surface runoff and soil erosion were measured in soil erosion plots and outlet of Nopu Upper Catchment. Rainforest conversion to agricultural lands were significantly increased soil erosions and surface runoffs. Soil erosion from maize and peanut rotation was higher 2061.8% than natural forest. It higher value also in intercroping young age cocoa, maize and cassava and maize were 2023.8% and 2012.3% respectively. While surface runoffs increased up to 761.7°/o on bare plot, 567.5% on medium age cocoa, 446.8°/o on young age cocoa, 415.1°/o on intercroping young age cacao, maize and cassavas, 405.9°/o on old cocoa, and 329.5% on intercroping young age cacao and cassavas. Crop and management factor (C factor) value is significantly corelated with outputs of ANSWERS model. Using daily daily C factors, the ANSWERS model performs well in predicting soil erosion which is showed by determination coefficent (Jr = 0.89), model efficiency (0.86), and average of percentage model deviations (24.1%). Whereas using USlE C factor, model accuracy lower which represented by model coefficient (0.40) and average of percentage model deviations (63.6%). Using daily C factors, ANSWERS model simulation indicates rainforest conversion into agricultural lands on Nopu Upper Catchment has caused soil and water loss 3190.5 ton/year and 115441.0 m3/year, respectively. Agroforestry system practices in agricultural lands which in line with reforestation in stream line and steep agricultural areas (slope> 40°/o) was effective to reduce soil erosions up to 77.6°/o.
PENGARUH UMUR REKLAMASI LAHAN BEKAS TAMBANG BATUBARA TERHADAP FUNGSI HIDROLOGIS Patiung, Onesimus; Sinukaban, Naik; Tarigan, Suria Darma; Darusman, Dudung
Jurnal Hidrolitan Volume 2 No. 2 Tahun 2011
Publisher : Jurnal Hidrolitan

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Abstract

ABSTRACTThe research was conducted at the PT. Adaro coal mining area in watershed Barito, a sub-watershed Negara, South Kalimantan Province. The aims of the study were: 1) to analysis impacts of land reclamation on soil physical properties; and 2) to analysis impact of coal mine land reclamation on the hydrological functions of watershed. Runoff, erosion and carbon sequistration plots were establisment at different any method of reclamation. Characteristics of soil physic were observed in each plot. The results showed: 1). Bulk density, porosity and permeability were not significantly but showed a decrease in the Bulk density and an increase in porosity and permeability of soil. 2). The largest erosion occurred in TP (130.28 tons/ha) and the lowest erosion found AP (13.97 tons/ha). The largest runoff occurred in TP (263.73 mm) and the lowest runoff found AP (75.17 mm). Revegetation at the reclamation methods, significanly reduces the rate of erosion and runoff, increased porosity, permeability and infiltration. Nevertheles, bulk density is hihger then forest soil.
KAJIAN DAMPAK DINAMIKA PENGGUNAAN LAHAN TERHADAP EROSI DAN KONDISI HIDROLOGI DAS WANGGUDS Alwi, La Ode; Sinukaban, Naik; Solahuddin, Soleh; Pawitan, Hidayat
Jurnal Hidrolitan Volume 2 No. 2 Tahun 2011
Publisher : Jurnal Hidrolitan

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Abstract

ABSTRACTLand erosion and hydrological conditions of Wanggu-DS watershed assessed based on the data: land use dynamic, soil physical, erosion, and run off coefficient, and ration discharge (Qmax/Qmin). This research is using survey methods and experimental plots. The data land biophysical: climate, topography, soil type and land use derived from the results of previous studies. This research was conducted from July 2009 - Juni 2010. The objective of the research was assessed: 1) the impact of land use dynamic in Wanggu watershed to erosion, ratio discharge (Qmax/Qmin), 2) to study of land use dynamic and agrotechnology model that can improve soil infiltration capacity and water availability, reduce the ratio discharge (Qmax/Qmin) and rate of erosion. The results of the research showed that land use dynamic which incompatible with its ability to cause increasing of erosion on: up land agriculture, shrubs, settlements with the erosion > Tollerable Soil Loss are 36.3 >21.0; 21.4 >14.9 and 19.5 >18 ton/ha/yr on slopes > 8%, run off is 626.9 mm/yr, coefficient run off 0.32, average ratio of river discharge (Qmax/Qmin) is 29.3 but not to forest land use. Land use planning model and agroteknology of the best is Scenario-5 can decrease of land erosion, run off, coefficient run off, ratio of discharge (Qmax/Qmin fron 33.56 to be 10.03).
PENGELOLAAN LAHAN PERTANIAN BERBASIS PEMBANGUNAN BERKELANJUTAN Sinukaban, Naik
Jurnal Hidrolitan Volume 1 No. 1 Tahun 2010
Publisher : Jurnal Hidrolitan

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Abstract

ABSTRACTIn the last decade, the agriculture development is not only can fulfill the people demand but alsoreduce the quality of natural resource which is indicated by the disaster of flooding, landslide, and drought.Therefore, it has to be done the revitalization of agriculture. It has to create the condition of agriculture thatmaterilize three indicators of sustainable development simultaneously through conservation agriculture system.The implementation of conservation agriculture system in upstream of Serang watershed has not achieved theagriculture development at perseved watershed especially due to the high of soil erosion and the wrong farmerperception that can impede the improvement of conservation quality. The use of conservation farming hasreduced soil erosion and increase the farmer income. The refercussion of conservation farming depends on thecapability of farmer to finance the maintance of farming system and bring about erosion control technically. Thepoor farmers can not manage conservation farming self-supporting, therefore they need subsidy.
KESESUAIAN LAHAN UNTUK SAYURAN DATARAN TINGGI DI HULU DAS MERAO, KABUPATEN KERINCI, JAMBI H, Henny; Murtilaksono, K.; Sinukaban, Naik; Tarigan, Suria Darma
Jurnal Hidrolitan Volume 2 No. 1 Tahun 2011
Publisher : Jurnal Hidrolitan

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Abstract

ABSTRAKLahan di hulu DAS Merao berada pada dataran tinggi vulkan Gunung Kerinci dengan tanah berbahan induk abu vulkan yang cukup subur tetapi peka terhadap erosi. Penelitian ini bertujuan untuk mengevaluasi kesesuaian lahan pertanian campuran di hulu DAS Merao, Kabupaten Kerinci untuk usahatani sayuran dataran tinggi. Hasil penelitian menunjukkan bahwa masing-masing satuan lahan cukup sesuai (S2) untuk tanaman kentang dan sesuai marjinal (S3) untuk tanaman kubis, cabe dan tomat dengan faktor pembatas utama adalah retensi hara yakni kejenuhan basa yang rendah dan reaksi tanah (pH) yang masam hingga agak masam serta bahaya erosi (kemiringan lereng dengan topografi bergelombang hingga berbukit). Penggunaan lahan yang optimal untuk pengembangan usahatani kentang, kubis, cabe dan tomat perlu penerapan agroteknologi yang sesuai dengan karakteristik tanah dan kebutuhan tanaman, terutama peningkatan kejenuhan basa dan pH tanah (melalui pemberian kapur dan pupuk terutama pupuk organik atau kompos), pengaturan pola tanam sesuai ketersediaan air (curah hujan) dan penerapan teknik konservasi tanah yang memadai untuk mengendalikan erosi hingga kecil atau sama dengan erosi yang dapat ditoleransikan.
Dynamics of Soil Quality, Erosion and Income of Farmer as Effect of Forest Conversion into Cocoa Landuse in Nopu Watershed, Central Sulawesi Monde, Anthon; Sinukaban, Naik; Murtilaksono, Kukuh; Pandjaitan, Nora H.
Forum Pasca Sarjana Vol 31, No 3 (2008): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

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Abstract

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
Determining on Expectation of Reforestation Success Age at Mining Area, PT. INCO, Sorowako, South Sulawesi Puspaningsih, Nining; Murtilaksono, Kukuh; Sinukaban, Naik; Jaya, I Nengah Surati; Setiadi, Yadi
Forum Pasca Sarjana Vol 33, No 4 (2010): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

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Abstract

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
Analysis of Bekasi City Flood Reduction Using Watershed Management Kadri, Trihono; Sinukaban, Naik; Pawitan, Hidayat; Tarigan, Suria Darma
Forum Pasca Sarjana Vol 34, No 1 (2011): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

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Abstract

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
Analysis of Institution System on Planning and Strategy of Critical Land on Bila Watershed Management Nuddin, Andi; Sinukaban, Naik; Murtilaksono, Kukuh; Alikodra, Hadi S.
Jurnal Penyuluhan Vol 3, No 2 (2007): Jurnal Penyuluhan
Publisher : IPB

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Abstract

The rehabilitation program of critical land had been done since 1985 until 2001, but Bila watershed condition did not get better, even the width of critical land and erotion got more increase. Those were caused by some factors, involved: unaccruracy of technology, limited baudget, and unoptimal institution. Analysis of this study was focused on institution factor. Some of institution aspects that caused failure of rehabilitation of critical land Bila watershed, were is: role of institution sector, performance of management function, weakness on coordination, unrelevant of strategic program, and priority activity. Data collected was conducted by survey on some samples. Interpretative Structural Modelling and Analitycal Hierarchy Process were applied and the result shown that: (1) The main subject in critical land Bila watershed management were institution at regency level, which is Bappeda and Bapedalda, (2) unsuccess of rehabilitation of critical land Bila watershed was caused by planning weakness, (3) top-down policy, one of nine from main factors must be handled for effectiveness of coordination function, (4) to equalize vision and mission Bila watershed management cross territory was one of foor priority strategic frogram in critical land Bila watershed management, (5) and to increase knowledge and farmer skills were one of seven priority activity in critical land Bila watershed management.