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ANALISIS POTENSI SUMBERDAYA LAHAN UNTUK PERENCANAAN PENGEMBANGAN KOMODITAS UNGGULAN PERKEBUNAN DI KABUPATEN BANYUWANGI mubekti, Mubekti
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Land is limited and non-renewable resource, on the other hand, people who need the land for development grow quickly. This paper discuss about the evaluation of land resource for plantation estate development planning in Banyuwangi District. General information regarding to physical environment are presented in order to know an overview of the study area. The Methodology of land suitability classifi cation corresponding to the selected plantation crops are briefl y explained, then, the results of the study are discussed. The study area consist of 9 physiographic spread from the fl at slope near the cost and verysteep slope near the mountain. Based on the land physical evaluation shows that the parent materials of the land are dominated by volcanic and lime stone. The results of the suitability classifi cation indicate that coconut crop could grow well in most of the plain up to undulating area. The land which suitable for coffee, clove and Vanilla cultivation are very small compared to the total of the study area and they are mostly located in the middle of the study area. Limiting factors of land suitability are mainly very diffi cult to upgrade, such us steep slope, soil effective depth, soil porosity, and drainage. In general, Banyuwangi District has a high potency of land for plantation estate extension.Keywords: land suitability, plantation estate, GIS, agriculture

Pendekatan Kerangka Sampel Area untuk Estimasi dan Peramalan Produksi Padi Mubekti, Mubekti; Sumargana, Lena
JURNAL PANGAN Vol 25, No 2 (2016): PANGAN
Publisher : Perum BULOG

The drawback of the existing national agricultural statistics system is that the acquisition of data has not been based on scientific approaches, so it results in bias of data. The aim of this paper is to introduce a new method for estimating rice area called ‘Area Frame Sampling’ based on points observation. The method employs not only statistics but also GIS, remote sensing, and information technology. Field survey to the sample points is aiming to observe and record the growth phase of rice. Data communication from field level to central level by SMS gateway is involved in supporting timely generation of reliable information on the crop area. The analysis of rice area refers to the extrapolation from sample to population, then, the estimation of rice production is a multiplication of rice harvest area and productivity derived from samples of crop cutting. Since we know both the period of growth phase and growth cycle of rice we can predict when the rice would be harvested. Each time the field survey is conducted then the acreage of each rice growth phase including harvest area can be derived. The analysis of rice area refers to the extrapolation from sample to population. Then the estimation of rice production is the multiplication of rice harvest area and productivity derived from samples of crop cutting. The accuracy of rice area estimate is good; it is indicated by the value of the coefficient of variation, namely <5 percent. It is concluded that area frame sampling approach for rice statistics can be implemented successfully and can be developed for other food crop statistics.

TEKNOLOGI REMOTE SENSING DAN GIS UNTUK ZONASI KOMODITAS DAN KETERSEDIAAN SUMBERDAYA LAHAN Mubekti, Mubekti; Rahmadi, A; Rintung, S
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 3 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

One aspect of the agricultural development is an information corresponding to potency and availability of land resources for both intensification and extensification. In order to derive a such information, a study on Remote Sensing and GIS Technology Application for Agro-ecological and Land Resource Zoning has been done in Agam District, West Sumatra. The aim of the study is to set up maps of agro-ecological zone and its availability for a sustain agricultural development. A brief explanation of the methodology used in the study is presented referring to FAO procedure. The step of the activities consist of secondary data compilation, field survey, spatial analysis, and mapping. All of the spatial data analysis were conducted by using GIS and Remote Sensing soft-wares, that is to say, Arc-View and ER-Mapper. Explanation of the physical environment are exposed as preliminary knowledge of the study area. The results of the land evaluation for agricultural cultivation are divided into three groups, those are (a) Food crops and vegetables, (b) food crops, vegetables and annual crops, and (c) Annual crops. Those of each group has 43,079 hectares (19.3 % of district area), 29,514 hectares (13.2 % of district area), and 56,390 hectares (25.3 % of district area) that suitable for corresponding agricultural development, respectively. The rest covering 42.21 % of the district area are not suitable for agricultural cultivation because of natural limiting factors, such as topography, soil and climate. Regarding to the existing land use, not all suitable lands are available for agriculture extension. In this evaluation, 32,009 hectares or 14.3 % of the district area are available for those of agriculture extension.

STUDI PEWILAYAHAN DALAM RANGKA PENGELOLAAN LAHAN GAMBUT BERKELANJUTAN DI PROVINSI RIAU Mubekti, Mubekti
Jurnal Sains dan Teknologi Indonesia Vol. 13 No. 2 (2011)
Publisher : Badan Pengkajian dan Penerapan Teknologi

A preliminary study of peat sustainable development zoning was conducted in Riau Province. The background of the study explains the potential of peat land and the role of management planning regarding to sustainable development. The analysis of peat area and its distribution is based on the existing data and field survey. Then peat ecological zoning is derived by using land evaluation method. A brief description of peat is presented to clarify peat formation, peat characteristics, peat role, and carbon emission from peat. The results of field observation show that ahuge of peat area has been unwise exploited, especially for palm oil plantation, and industrial forest estate. The total area of peat land in Riau resulting from the analysis is 4.360.740 hectares, where Indragiri Hilir has the largest among districts in the Province. Peat area can be divided into 4 zones based on its depth, namely (1) food crop, horticulture, plantation estate, and industrial forest estate, (2) horticulture, plantation estate, and industrial forest estate, (3) plantation estate, and industrial forest estate, and (4) conservation area. The cultivated land of peat covers 2.667.581 hectares whereas the un-cultivated land covers 1.693.159 hectares

APLIKASI SIG UNTUK PENETAPAN KESESUAIAN WILAYAH PENERAPAN MEKANISASI PERTANIAN TANAMAN PANGAN Mubekti, Mubekti
Jurnal Teknologi Lingkungan Vol. 10 No. 1 (2009)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

The study is the preliminary research aiming to apply the usefulness of the GISsystem for classifying suitability of region to the agricultural mechanization. Simplebasic theory of GIS and classification of agricultural mechanization were presented.Nine physical and non-physical parameters as limiting factors were defined and aweight of each parameter was calculated in order to know how far its effect to theagricultural mechanization practice. Data coming from several types, ie: numeric,vector and remote sensing (raster) were prepared to support the process. Twoordoes consisting of five classes were employed to extract suitability classificationof each District in Jawa Barat dan Banten Province. The results show that tendistricts are classified into suitable for applying agricultural mechanization, and therest ten districts are classified into not suitable. Depending on the dynamic characterof limiting factor, suitability class would possibly change along the time. Saveralconclusions and advices for improving research are given.

EVALUASI KARAKTERISASI DAN KESESUAIAN LAHAN UNTUK KOMODITAS UNGGULAN PERKEBUNAN : STUDI KASUS KABUPATEN KAMPAR Mubekti, Mubekti
Jurnal Teknologi Lingkungan Vol. 13 No. 1 (2012)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Inventarisasi sumberdaya lahan dalam kaitannya dengan penentuan kesesuaian lahan merupakan hal yang harus dilakukan dalam analisis perencanaan wilayah. Studitentang kemampuan lahan di Kabupaten Kampar, Riau telah dilakukan dengan tujuan untuk mengevaluasi kesesuaian lahan untuk pengembangan perkebunan. Informasi umum lingkungan fisik disajikan untuk mengetahui secara sekilas tentang wilayah studi.Metodologi klasifikasi kesesuaian lahan disampaikan dalam tulisan ini, kemudian hasil analisisnya didiskusikan. Berdasarkan bentuk lahan, wilayah studi dibagi menjadi 8 grup fisiografi, yaitu kubah gambut, aluvial, dataran tufa masam, dataran, karst, perbukitan, pegunungan dan aneka bentuk lahan. Bentuk lahan yang paling luas ditempati oleh fisiografi dataran, sementara yang paling sempit luasannya adalah fisiografi karst.Sebagian besar lahan di wilayah studi masuk kelas sesuai untuk komoditas unggulan perkebunan, terutama untuk tanaman kelapa sawit, karet, kelapa dan kakao. Namun demikian, lahan yang sesuai tersebut didominasi oleh kelas sesuai marjinal. Sementara itu kesesuaian lahan untuk komoditas gambir sebagian besar masuk katagori tidak sesuai. Sebagian lahan yang mempunyai kelas lebih rendah dalam kesesuaian lahan aktual dapat ditingkatkan kelasnya dalam kesesuaian lahan potensial asalkan faktorfoktorpembatas lahan dapat diperbaiki. Faktor-faktor pembatas lahan terdiri dari dua jenis, yaitu (1) faktor pembatas permanen yang tidak dapat diperbaiki, misalnya lereng, tekstur tanah, ketinggian (altitude), dan (2) faktor pembatas yang dapat diperbaiki, misalnya kesuburan lahan, unsur racun Al, kemasaman tanah.Ã‚Â kata kunci: Satuan lahan, kesesuaian lahan, GIS, Remote SensingÃ‚Â AbstractLand resource inventories to determine land suitabilities have become standard part of planning analysis. A study of land carriying capacity in kampar District, Riau has been done aiming to evaluate the suitability of land for plantation crops. General information regarding to physical environment of study area are presented in order to know an overview of the study area. The Methodology of land suitability classification corresponding to the selected plantation crops are briefly explained, then, the results of the study are discussed. The study area is divided into 8 group of fisiographic land units, namely, peat dome, alluvial, acid tuff plain, plain, karst, hilly, mountain and miscellaneouslandform. The largest one is occupied by plain fisiographic and the smallest one is occupied karst fisiographic. Most of the land is suitable for selected plantation crops, especially for palm oil, rubber, coconut, and cocoa. But, those of suitable land is dominated by marginally suitable category. Whereas for gambier crop shows that most of the land is classified into unsuitable category. A part of the lower class in the actual suitability could be improved to a higher class in the potential suitability depending on limiting factors. There are two types limiting factors to define land suitability, i.e., (1) permanently (un-improvable) limiting factors, such as slope, soil texture, latitude and(2) improvable limiting factors, such as soil fertility, Al toxicity, soil acidity.Ã‚Â key word: land unit, land suitability, GIS, Remote Sensing

MITIGASI DAERAH RAWAN TANAH LONGSOR MENGGUNAKAN TEKNIK PEMODELAN SISTEM INFORMASI GEOGRAFIS; STUDI KASUS: KECAMATAN SUMEDANG UTARA DAN SUMEDANG SELATAN Mubekti, Mubekti
Jurnal Teknologi Lingkungan Vol. 9 No. 2 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Landslide is the main natural disaster in the study area of North Sumedang and South Sumedang sub-districts. The spatial distribution of landslide hazard and risk are not available yet that important for decision making. The aim of research is to providegeographic information system technology for developing a model for landslide hazard mitigation. The results show that a part of the area in the North Sumedang and South Sumedang subdistrict has moderate class covering 8.460,41 Ha (65,5%) and high landslide hazard is covering 2.798,44 Ha (21,67%), low landslide hazard zone = 1.570,25 Ha (12,16%) and very low landslide hazard 85,69 Ha (0,66%). By combining landslide hazard and property value, a prediction of landslide risk was produced. Despite the majority of the area has low risk class (9.564,16 Ha/74,07%), but the highrisk area occurred in minimal places (86,44 Ha/0,67%). This phenomena showed that area with high potential level of landslide hazard is not always having a high value of risk. Since the risk calculation is determined by properties value such as:infrastructure, road network and land use. While the landslide hazardous level is determined by natural factors such as : slope, soil type, geology and land use.

KARAKTERISASI SUMBERDAYA LAHAN DAN PEWILAYAHAN KOMODITAS UNGGULAN PERKEBUNAN DI PULAU BURU Mubekti, Mubekti
Jurnal Teknologi Lingkungan Vol. 12 No. 3 (2011)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Evaluasi karakter lahan dan pewilayahan komoditas perkebunan berdasarkanÃ‚Â kesesuaian lahan telah dilakukan di Pulau Buru, dimana wilayah ini merupakan salahsatu pulau utama di Provinsi Maluku yang mempunyai potensi sumberdaya lahanÃ‚Â yang tinggi. Namun demikian karakter lahan sangat bervariasi dari satu tempat ketempat lainnya karena adanya factor-faktor pembatas di dalamnya. Dalam metodologiÃ‚Â dijelaskan secara singkat tentang evaluasi lahan, kesesuaian lahan dan pewilayahankomoditas perkebunan. Kemudian bahasan hasil studi di Pulau Buru disajikan meliputiÃ‚Â penggunaan, karakter, dan kesesuaian lahan, serta pewilayahan komoditas perkebunan.Ã‚Â Sebagian besar wilayah studi masih ditutupi oleh hutan, dan hanya sebagian kecil yangÃ‚Â dimanfaatkan sebagai lahan garapan. Dareah studi terdapat 5 fisiografi terbagi menjadiÃ‚Â 15 unit lahan. Sebagian besar lahan masuk dalam katagori tidak sesuai (N), dan hanyaÃ‚Â sebagian kecil yang masuk katagori sesuai (S). Secara alami yang menjadi factorÃ‚Â pembatas lahan adalah kemiringan curam, ketinggian tempat, kedalaman tanah yangÃ‚Â dangkal, dan ketersediaan air. Total luasan lahan yang potensial untuk dikembangkansebagai lahan perkebunan adalah 187.902 hektar, dan sekitar 50 % dari lahan tersebutÃ‚Â terletak di hutan yang dapat dikonversi.

ESTIMASI JEJAK KARBON INDUSTRI MINYAK KELAPA SAWIT Mubekti, Mubekti
Jurnal Teknologi Lingkungan Vol. 15 No. 1 (2014)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Dalam kurun dasawarsa terakhir, produksi minyak kelapa sawit di Indonesia berkembang pesatsebagai akibat dari permintaan baik pasar lokal maupun internasional. Potensi penggunaan minyaksawit sebagai biodiesel untuk mengurangi emisi karbon dan ketergantungan terhadap penggunaanbahan bakar fosil telah menjadi fokus perdebatan berkaitan dengan emisi yang disebabkan olehkonversi lahan perkebunan kelapa sawit, serta proses-proses pengelolaan kebun dan pasca panen.Menghitung jejak karbon dari industri minyak kelapa sawit berkaitan dengan tiga fase prosesproduksi, yaitu (1) konversi tutupan lahan sebelunya, (2) pengelolaan perkebunan kelapa sawit, (3)transportasi dan pengolahan dalam pabrik. Dari berbagai sumber data sekunder hasil penelitiansebelumnya dapat dihitung emisi karbon sebesar 1.641,33 ton per hektar ekivalen CO2 dalam 25tahun siklus pertumbuhan kelapa sawit. Apabila 6000 hektar dianggap sebagai luasan ekonomisperkebunan kelapa sawit, maka total emisi karbon diestimasikan sebesar 9.847.980 ton ekivalenCO2

SPASIAL STATISTIK UNTUK ESTIMASI DAN PERAMALAN PRODUKSI PERTANIAN STUDI KASUS: KABUPATEN INDRAMAYU DAN SUBANG Mubekti, Mubekti
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Applied Study on Agricultural Production estimate and Forecast by using Area Frame Sampling in Indramayu and Subang Districts is based on the successfulness of ‘Area Frame Design’ development for the whole Java Island. A brief explanation of design ispresented to refresh its basic idea. The methodology of the study is discussed and the mathematical formulation to estimate rice refers to direct expansion approach is presented. The main aim of the study is to prove that area frame sampling is reliableto implement for rice production estimate and forecast. For that purpose, sample segments were extracted and inside the segment crop cutting was conducted. Three times ground survey were conducted to map rice growing stage and crop cutting. Theanalysis of ground data for both yield and harvest area was done then production estimate was derived. Furthermore, harvest area forcast for next three months after survey-1 was also conducted. Regarding to the man power capability and the results in both districts, it is considered that area frame sampling is feasible to implement indistrict level.

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