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Feasibility of Soil and Water Conservation Techniques on Oil Palm Plantation Murtilaksono, Kukuh; Darmosarkoro, Witjaksana; Sutarta, Eddy Sigit; Siregar, Hasril Hasan; Hidayat, Yayat; Yusuf, M. Arif
AGRIVITA, Journal of Agricultural Science Vol 33, No 1 (2011)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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The objective of the study is to examine the effectiveness and feasibility of soil and water conservation techniques. The production of oil palm comprising the fresh fruit bunch, number of bunches, and average of bunch weight were recorded at every harvesting schedule. Tabular data were analyzed by logical comparison among the blocks as a result of application of bund terraces and silt-pit. Financial and sensitivity analysis of the effect of the techniques on FFB production were done. Bund terrace treatment was more effective (4.761 ton or 21.5%) in increasing FFB production than the silt-pit treatment (3.046 ton or 13.4%) when it is compared to that of the control block. The application of bund terraces and silt-pit also presents positive effects i.e. increases the average bunch weight and the number of bunch compared to that of the control. Furthermore, the financial analysis as well as sensitivity analysis shows that the bund terrace application is profitable and feasible (B/C = 3.06, IRR = 47%) while the silt pit treatment is profitable but not feasible.Keywords: Bund terrace, feasibility, production of FFB, silt-pit

Reforestation Achievement Monitoring at Mining Area through Soil Index Model Nining Puspaningsih; Kukuh Murtilaksono; Naik Sinukaban; I Nengah Surati Jaya; Yadi Setiadi
Jurnal Manajemen Hutan Tropika Vol. 16 No. 2 (2010)
Publisher : Institut Pertanian Bogor (IPB University)

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The achievement of the reforestation is expected to reach a climax forest ecosystem. The objectives of this studywas to develop soil index model on monitoring of reforestation achievement. The study used a statistical approach to obtain soil index model to determine the achievement level of reforestation in mining area. The achievement indices for each variable were derived from the best regression model developed, while the weights of eachvariable were computed based on magnitude of regression coefficient for each indicator. The level of reforestationachievement index was initially developed by the use of 4 indicators, i.e. physical soil, biological soil, chemical soil, and litter index. Of those indicators, the study revealed that the heights weight for reforestation monitoring was chemical soil, which is composed pH, cation exchange capacity (CEC), macro-micro nutrient, and base saturation.

Respons Hidrologi Akibat Deforestasi di DAS Barito Hulu, Kalimantan Tengah Moch. Anwar; Hidayat Pawitan; Kukuh Murtilaksono; I Nengah Surati Jaya
Jurnal Manajemen Hutan Tropika Vol. 17 No. 3 (2011)
Publisher : Institut Pertanian Bogor (IPB University)

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The landcover change, particularly deforestation, can to affect of hydrological response on watershed.Deforestation of natural forest is identical to degradation of watershed functions, such as loos of land productivity due to increased soil erosion, runoff, evapotranspiration, and decreased of water storage. The main objective of this study is describes the hydrologic response on the Barito Hulu watershed due to landcover change (particularly deforestation) by the use Soil and Water Assessment Tool (SWAT) model. The result of the study showed that decreasing of forest area was 9.51% from initial condition can increase water yield, evapotranspiration, and erosion as much as 8.52%, 5.94%, and 1.73 t ha-1 year-1, respectively. Otherwise, water storage decreased as much as14.46%. The landcover on 1990 with rainfall 3,117.10 mm year-1 provided water yield of approximately 1,387.13 mm, evapotranspiration of 1,152.10 mm, water storage of 577.87 mm, and erosion of about 20.52 t ha-1 year-1. The landcover on 2003 with rainfall 2,613.2 mm year-1 provided water yield of approximately 1,385.50 mm, evapotranspiration of 1,121.10 mm, water storage of 106.60 mm, and erosion of about 33.15 t ha-1 year-1 with erosion tolerance of about 43.57 t ha-1 year-1.

Pencirian Debit Aliran Sungai Citarum Hulu Yayat Hidayat; Kukuh Murtilaksono; Enni Dwi Wahjunie; Diah Retno Panuju
Jurnal Ilmu Pertanian Indonesia Vol. 18 No. 2 (2013): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Citarum is one of strategic rivers in West Java. In the upper part of this river, there are 3 large dams (Saguling, Cirata, and Jatiluhur) which operates hydroelectric power that supply ± 20% electricity needs of Java-Bali area. Run off discharge of the river are fluctuating widely so greatly affect the performance of electricity production, supply of irrigation, and household water in the downstream area. The research aims to identify character of river discharge of Citarum Hulu and its relation with land use changes and farm management. River discharge were analyzed at the inlet of Saguling dam in Kampung Nanjung and some stream monitoring stations located in Ciwidey, Cisangkuy, and Cikapundung-Gandok. River discharge was highly fluctuating. In the peak of rainy season the flow rate can reach 578 m3/sec which caused flooding in several area such as Majalaya, Banjaran, and Dayeuhkolot. In contrary, in dry season the flow was very low, about 2.7 m3/sec, causing drought, failure of rice harvest, and reduced water supply to hydropower plant of Saguling. In addition to affecting rainfall patterns, the flow rate fluctuations was also influenced by pattern of land use and management. Land utilization that was not in accordance with the land capability was the main cause of land degradation which in turn would decrease hydrology function of watershed to control river discharge in rainy season.

Pengaruh Penggunaan Mulsa Dan Pengolahan Tanah Terhadap Aliran Permukaan, Erosi Dan Selektivitas Erosi Pada Latosol Coklat Kemerahan Darmaga Naik Sinukaban; . Sudarmo; Kukuh Murtilaksono
Jurnal Ilmu Pertanian Indonesia Vol. 1 No. 1 (1991): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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The purpose of this study is to evaluate the effects of conservation and straw mulch applications on runoff, erosion, selectivity in a cropping pattern of groundnuts - filed corn. Tillage systems used were zero tillage and minimum tillage, while straw mulch application used were 0, 30, 60, and 90 percent coverage on Reddish Brown Latosol, Darmaga. This study was carried out in the planting season of 1088/1989 (November 1988 to 1989). Groundnuts (Pelanduk variety) was planted immediately after land preparation, just before the straw mulches were applied. Field corn (Arjuna variety) was planted right after the harvesting of groundnuts. Runoff and soil loss were recorded and some samples were collected for laboratory analysis. The data analysis shows that runoff were significantly decreased by the minimum tillage system and soil loss were significantly decreased by the increasing straw mulch application with a linier relationship. Straw mulch coverage of at least 60 percent reduced the soil loss by more than 50 percent. However, the increasing straw mulch applications were not significantly effective to reduce plant nutrient loss. This is due to the increasing selectivity of erosion process by the increasing straw mulch application.

ANALISIS SISTEM KELEMBAGAAN DALAM PERENCANAAN DAN STRATEGI PENGELOLAAN LAHAN KRITIS DAS BILA Andi Nuddin; Naik Sinukaban; Kukuh Murtilaksono; Hadi S. Alikodra
Jurnal Penyuluhan Vol. 3 No. 2 (2007): Jurnal Penyuluhan
Publisher : Department of Communication and Community Development Sciences and PAPPI (Perhimpunan Ahli Penyuluh Pertanian Indonesia)

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.

Land use Conflict in Gunung halimun Salak National Park Lebak District Nurman Hakim; Kukuh Murtilaksono
Sodality: Jurnal Sosiologi Pedesaan Vol. 4 No. 2 (2016): Sodality
Publisher : Departement of Communication and Community Development Sciences, Faculty of Human Ecology

ABSTRACTDevelopment for conservation, agriculture and settlements have equal importance for humankind. Reality showed, conflict is occured because of each goal use its own knowledge and values. The conflict was found in the forest area of Gunung Halimun Salak National Park. The study aimed to identify the landuse conflict between conservation with agriculture, settlement, include mining, and identify the strategic issues that arised from the conflict. This study was conducted in Gunung Halimun Salak National Park at Lebak regency. The study using qualitative and quantitative approach. Spatial multicriteria analysis was employed to identify the areas of conflict. List of issue derived from three sources: observing landuse conflict map, discussion with the expert and stakeholder’s strategic document. The strategic issues is classifyed based on level of agreement among experts.The result showed that conflict which had been occurred between conservation and agriculture of 22,061.11 ha (49%); between conservation and settlement of 1,830.36 Ha (4%); and between conservation and mining of 26,007.86 Ha (58 %). Analysis of strategic issues leads to 11 issues were grouped to three agendas, namely (1) Tenure and environmental damage, (2) disaster mitigation and food security, and (3) infrastructure development for agriculture and settlement.Keywords: Gunung Halimun Salak district Lebak, landuse conflict, landuse preferences, multicriteria analysis.ABSTRAKPembangunan untuk tujuan konservasi, pertanian dan permukiman memiliki nilai penting yang setara demi kesejahteraan manusia. Kenyataan menunjukan bahwa ketiga tujuan tersebut kerap berbenturan dan menimbulkan konflik karena masing-masing menggunakan pengetahuan dan nilainya sendiri-sendiri. Konflik tersebut dijumpai di kawasan hutan Taman Nasional Gunung Halimun Salak. Penelitian ini bertujuan untuk mengidentifikasi konflik penggunaan lahan antara konservasi dengan pertanian, permukiman termasuk pertambangan, serta mengidentifikasi isu strategis yang muncul dari konflik yang terjadi. Penelitian dilakukan di kawasan hutan Taman nasional Gunung Halimun salak di Kabupaten Lebak. Penelitian ini menggunakan kombinasi pendekatan kualitatif dan kuantitatif. Analisis spasial multikriteria digunakan untuk mendeskripsikan area-area yang mengalami konflik. Isu-isu digali dari pengamatan peta konflik, wawancara narasumber ahli dan kajian dokumen strategis. Perumusan isu strategis didasarkan pada tingkat kesepakatan diantara para narasumber. Hasil penelitian memperlihatkan terjadi konflik penggunaan lahan antara konservasi dengan pertanian seluas 22.061,11 ha (49%); antara konservasi dengan permukiman seluas 1.830,36 Ha (4%); dan antara konservasi dengan pertambangan seluas 26.007,86 Ha (58 %). Terdapat 11 isu strategis yang dirumuskan menjadi 3 kelompok isu dan diajukan sebagai agenda bersama pengelolaan konflik penggunaan lahan, yaitu: (1) Isu lingkungan dan penyelesaian tenurial, (2) Isu mitigasi bencana dan ketahanan pangan, dan (3) Isu pengembangan infrastuktur pertanian dan permukiman.Kata kunci: TNGHS Kabupaten Lebak, konflik penggunaan lahan, preferensi penggunaan lahan, analisis multikriteria.

Typology Conflict of Forest Area on Boundary Demarcation Process in Bangka Island Region Afrisna Nilasari; Kukuh Murtilaksono; Endriatmo Soetarto
Sodality: Jurnal Sosiologi Pedesaan Vol. 5 No. 3 (2017): Sodality
Publisher : Departement of Communication and Community Development Sciences, Faculty of Human Ecology

ABSTRACTDesignation of forest area in Bangka Island region, Bangka Belitung Province according to Kepmenhut 357/Menhut-II/2004 has provoked a conflict between the various interested parties. Boundary demarcation process as the next stage from designation forest area had a conflict with local communities. This study had purpose to identifylanduse and landcover condition of forest area and the type of conflict. The applied methode was image intepretation and classification and alsoRaTA (Rapid Land Tenure Asessment). The study showed that landuse and landcover condition was dominated with grassland and the form of occupied local people is cropland, palm oil plantation, open field, and the settlement. Tke kind of conflict in the field study was strugle of access and withdrawall rights of land resources in the forest area that causes by different persepsion between local peoples and the Goverment as the parties has management and demarcation boundary authorithy of forest area with the problem is illegal activity and land convertion from other use area into forest area. Forest Management based by The Community would be ideal conflict resolution and those need the socialisation, intensive and effective communication between the parties that had a conflict.Keywords: forest land tenure conflict, landuse and landcover, conflict resolutionABSTRAKPenunjukan kawasan hutan di wilayah Pulau Bangka Provinsi Kepulauan Bangka Belitung berdasarkan Keputusan Menteri Kehutanan Nomor 357/Menhut-II/2004 menimbulkan konflik bagi para pihak yang berkepentingan. Proses penataan batas sebagai tahapan berikutnya dari penunjukan kawasan hutan mengalami penolakan dan konflik dengan masyarakat lokal. Penelitian ini memiliki tujuan untuk mengetahui kondisi penutupan dan penggunaan lahan kawasan hutan serta tipe konflik yang terjadi melalui intepretasi dan klasifikasi citra satelit serta analisis RaTA (Rapid Land Tenure Asessment). Hasil penelitian menunjukkan bahwa kondisi penutupan lahan wilayah penelitian didominasi oleh semak belukar dan bentuk okupasi lahan masyarakat berupa lahan terbuka, kebun sawit, kebun campuran dan pemukiman. Tipologi konflik yang terjadi lebih kepada konflik perebutan hak akses dan hak pengelolaan sumber daya lahan yang terdapat di dalam kawasan hutan yang disebabkan karena perbedaan persepsi antara masyarakat dengan Pemerintah sebagai pemegang wewenang pengelolaan dan penataan batas kawasan hutan dengan bentuk permasalahan berupa perambahan kawasan hutan dan adanya alih fungsi lahan dari Areal Penggunaan Lain (APL) menjadi kawasan hutan. Program Pengelolaan Hutan Berbasis Masyarakat (PHBM) menjadi resolusi konflik yang ideal dan perlu dilakukan sosialisasi dan komunikasi yang intensif dan efektif antar para pihak.Kata kunci: konflik penguasaan lahan, penutupan dan penggunaan lahan, resolusi konflik

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

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