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Journal : JURNAL TEKNOLOGI LINGKUNGAN

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (227.446 KB) | DOI: 10.29122/jtl.v10i1.1501

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1851.228 KB) | DOI: 10.29122/jtl.v13i1.1403

Abstract

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. kata kunci: Satuan lahan, kesesuaian lahan, GIS, Remote Sensing 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. 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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.139 KB) | DOI: 10.29122/jtl.v9i2.452

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1353.725 KB) | DOI: 10.29122/jtl.v12i3.1239

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (447.004 KB) | DOI: 10.29122/jtl.v15i1.1455

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (249.767 KB) | DOI: 10.29122/jtl.v9i3.468

Abstract

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.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.139 KB) | DOI: 10.29122/jtl.v9i2.452

Abstract

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.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (249.767 KB) | DOI: 10.29122/jtl.v9i3.468

Abstract

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.