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All Journal Indonesian Journal of Geography Wacana, Jurnal Sosial dan Humaniora AGRIVITA, Journal of Agricultural Science Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) MAJALAH ILMIAH GLOBE
Paulus B.K. Santoso
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Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences

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DYNAMIC SYSTEM MODELLING AND LAND SUITABILITY TO DEFINE PRIORITY AREAS OF SOYBEAN PLANTATION IN PADDY FIELDS IN KARAWANG, WEST JAVA Widiatmaka, Widiatmaka; Ambarwulan, Wiwin; Firmansyah, Irman; Munibah, Khursatul; Santoso, Paulus B.K.; Sudarsono, Sudarsono
AGRIVITA, Journal of Agricultural Science Vol 36, No 3 (2014)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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Abstract

One of the agricultural public commodities in Indonesia which still cannot fulfill its domestic consumption needs is soybean. The objectives of the research, which was conducted in Karawang Regency, West Java, Indonesia, were to: (i) identify the suitable area for soybean plantations in paddy fields, (ii)  assess the development of soybeans in land use and socio-economic context, and (iii) plan the spatially soybean plantation. A soil survey and land evaluation for soybean was completed. IKONOS imagery was applied to delineate paddy fields while a dynamic system modelling was developed using Powersim 8.0 software. The results of the research showed that the suitability class for soybean plantation in the paddy fields of Karawang Regency ranges from unsuitable (N) to suitable (S2), with limiting factors being temperature, fertility, nutrients retention, slope, erosion, rooting media and toxicity. Very limited arable land  has been used so far for soybeans plantations due to low economic returns. The model predicts that, should the development of soybean continues in its business as usual path, a deficit of soybean will occur in 2030. The model provides alternative scenarios to reduce the deficit. Prioritization was done spatially using the suitable land gradually, corresponding to the government budget availability.
PERENCANAAN SPASIAL PENINGKATAN PRODUKSI KEDELAI BERBASIS KESESUAIAN LAHAN DI KABUPATEN LOMBOK TIMUR PROVINSI NUSA TENGGARA BARAT Widiatmaka, Widiatmaka; Ambarwulan, Wiwin; Munajati, Sri Lestari; Munibah, Khursatul; Murtilaksono, Kukuh; Tambunan, Rudi P; Nugroho, Yusanto A; Santoso, Paulus B.K.; Suprajaka, Suprajaka; Nurwadjedi, Nurwadjedi
MAJALAH ILMIAH GLOBE Vol 15, No 2 (2013)
Publisher : Badan Informasi Geospasial

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.475 KB) | DOI: 10.24895/MIG.2013.15-2.86

Abstract

Pemanfaatan data survei tanah dan evaluasi lahan dilakukan untuk perencanaan peningkatan produksi kedelai menjawab tantangan kelangkaan pasokan kedelai di Kab. Lombok Timur, Provinsi Nusa Tenggara Barat. Data yang digunakan adalah hasil survei oleh Pusat Pemetaan dan Integrasi Tematik, Badan Informasi Geospasial dilengkapi dengan analisis citra dan evaluasi lahan fisik dan ekonomi untuk kedelai. Analisis kesesuaian lahan fisik dan ekonomi untuk kedelai dilakukan menggunakan Automated Land Evaluation System (ALES). Penggunaan lahan diinterpretasi menggunakan citra SPOT-5, dipertajam dengan data lebih detil menggunakan citra IKONOS dari Kementerian Pertanian. Hasil-hasil analisis diinterpretasi dalam term potensi intensifikasi kedelai pada lahan sawah eksisting dan potensi perluasan tanaman kedelai pada lahan kering yang potensial. Hasil analisis menunjukkan bahwa di wilayah Kabupaten Lombok Timur masih dimungkinkan dilakukan intensifikasi dan ekstensifikasi untuk peningkatan produksi kedelai dalam rangka peningkatan ketahanan pangan regional. Persoalannya, keuntungan petani dalam budidaya kedelai pada berbagai kelas kesesuaian lahan jauh lebih kecil dibandingkan pengusahaan padi sawah. Perencanaan fisik berbasis kesesuaian lahan perlu diikuti dengan upaya menciptakan kondisi agar penanaman kedelai menarik bagi petani dari sisi ekonomi.Kata Kunci: Ketahanan Pangan, SPOT-5, Kesesuaian Lahan, Sistem Evaluasi Lahan Otomatis.ABSTRACTData from soil survey and land evaluation were used in planning for increasing  soybean production, answering the lack of soybean supply in East Lombok Regency, West Nusa Tenggara Province. The results of the survey of Center for Integrated Mapping, Geospatial Information Agency were used, combined with image analysis and physical and economical land suitability analysis for soybeans. Analysis of physical and economical land suitability for soybean was performed using Automated Land Evaluation System (ALES). Land use was interpreted using SPOT-5 imagery, completed by the data of IKONOS imagery from Ministry of Agriculture. The results of the analysis were interpreted in terms of the potential intensification of soybean on existing ricefield and the potential expansion of soybean crops ondry land. The analysis showed that in East Lombok Regency, there is still possible to do the intensification and extension of soybean in order to improve regional food security. The problem is, benefit of farmers in the cultivation of soybeans in various land suitability classes are much smaller than rice cultivation. Physical planning based on land suitability needs to be coupled with efforts to create an attractive situation to farmers for planting soybean.Keywords: Food Security, SPOT-5, Land Suitability, Automated Land Evaluation System.
Farmers Adaptation of Post Conversion Land in Subang District, West Java, Indonesia Paulus Basuki Kuwat Santoso; Widiatmaka Widiatmaka; Supiandi Sabiham; Machfud Machfud; I Wayan Rusastra
Wacana Journal of Social and Humanity Studies Vol. 21 No. 1 (2018)
Publisher : Sekolah Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1233.606 KB)

Abstract

Subang Regency has an important role as the rice supplier area. As one of the rice production centers in Indonesia, rice farmers address rice fields as an asset or resource. As an asset, farmers conduct rice farming activities in the rice fields with economical orientation and rely on their food source mainly from the rice production. Conversions of paddy fields have changed the socioeconomic balancing amongst the farmers. They responded to the changes by adapting to new conditions, thus farmers’ post-conversion responses are an interesting aspect to study. This research aimed to understand the rice farmers adaptations, which was involved 15 key informants using in-dept interviews and purposive sampling method of 164 respondents. The analysis of the interview results used the concept of adaptation based on objectives, timing, and then strengthened with relevant documents for the study area. This study found, that: 1) farmers tried to make adjustments in using the compensation funds, livelihood, professions, farming, and household needs; 2) farmers’ adaptation are their way to earn the income and maintain their livelihood, and 3) some farmers firmly stated that their adaptations have made newly more prosperous conditions for them.
Land use planning of paddy field using geographic information system and land evaluation in West Lombok, Indonesia Widiatmaka Widiatmaka; Wiwin Ambarwulan Ambarwulan; Rudi P Tambunan; Yusanto A Nugroho; Suprajaka Suprajaka; Nurwadjedi Nurwadjedi; Paulus B.K. Santoso
Indonesian Journal of Geography Vol 46, No 1 (2014): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2130.338 KB) | DOI: 10.22146/ijg.5004

Abstract

Planning analysis to increase rice production either through intensiḀcation of existing paddy Ḁeld area or ex-tensiḀcation in potential land area was conducted in West Lombok Regency, West Nusa Tenggara Province, Indonesia. Existing paddy Ḁeld was delineated using high-resolution data from IKONOS imagery of 2012. Land use and land cover outside existing paddy Ḁeld were interpreted using SPOT-5 imagery of 2012. ἀe Automated Land Evaluation System (ALES) was used for land suitability analysis for paddy. ἀe results are interpreted in terms of the potential of paddy Ḁeld intensiḀcation in existing paddy Ḁeld area and the potential of extensiḀcation in land potentially used for paddy Ḁeld. ἀe result of analysis showed that in West Lombok Regency, there are still possible to do intensiḀcation and extensiḀca-tion of paddy Ḁeld to increase rice production in order to improve regional food security.
ANALISIS POLA KONVERSI LAHAN SAWAH DAN STRUKTUR HUBUNGAN PENYEBAB DAN PENCEGAHANNYA (STUDI KASUS KABUPATEN SUBANG, PROVINSI JAWA BARAT) Paulus Basuki Kuwat Santoso; Widiatmaka Widiatmaka; Supiandi Supiham; Machfud Machfud; I Wayan Rusastra
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 7 No. 2 (2017): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.7.2.184-194

Abstract

The extent of land use and land cover (LULC) of paddy field in Subang Regency has decreased because of the conversion into non-paddy field. The objectives of this research were to review the spatial pattern of LULC change, to analyze the cause and to identify the anticipation strategy of paddy field conversion. The analysis used the Landsat data of 1999, 2004, 2009, and 2014 which were interpreted by supervise technique. The interpretation result was compared with the existing LULC and was examined by Kappa methode. This research focuses on the spatial pattern of LULC change, integrated with the Interpretative Structural Modeling (ISM) to review the cause and the anticipation strategy of the conversion. The results revealed that the paddy field was converted into plantation, built-up area, and dryland agriculture. The ISM result revealed that the conversion causes were: (1) increasing the farmer economic needs, (2) increasing the built-up area, (3) increasing the selling price of land and (4) decreasing the farming motivation. To anticipate the conversion, several priorities are needed, namely (1) rehabilitation of the irrigation infrastructures and regulation of the spatial planning, (2) tighten the conversion permit and maximization of the abandoned land, and (3) giving the incentive and disincentive for the farmers, land consolidation, and establishment of corporate farming.
LAND SUITABILITY AND DYNAMIC SYSTEM MODELLING TO DEFINE PRIORITY AREAS OF SOYBEAN PLANTATION IN PADDY FIELDS IN KARAWANG, WEST JAVA Widiatmaka, Widiatmaka; Ambarwulan, Wiwin; Firmansyah, Irman; Munibah, Khursatul; Santoso, Paulus B.K.; Sudarsono, Sudarsono
AGRIVITA Journal of Agricultural Science Vol 36, No 3 (2014)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v36i3.432

Abstract

One of the agricultural public commodities in Indonesia which still cannot fulfill its domestic consumption needs is soybean. The objectives of the research, which was conducted in Karawang Regency, West Java, Indonesia, were to: (i) identify the suitable area for soybean plantations in paddy fields, (ii)  assess the development of soybeans in land use and socio-economic context, and (iii) plan the spatially soybean plantation. A soil survey and land evaluation for soybean was completed. IKONOS imagery was applied to delineate paddy fields while a dynamic system modelling was developed using Powersim 8.0 software. The results of the research showed that the suitability class for soybean plantation in the paddy fields of Karawang Regency ranges from unsuitable (N) to suitable (S2), with limiting factors being temperature, fertility, nutrients retention, slope, erosion, rooting media and toxicity. Very limited arable land  has been used so far for soybeans plantations due to low economic returns. The model predicts that, should the development of soybean continues in its business as usual path, a deficit of soybean will occur in 2030. The model provides alternative scenarios to reduce the deficit. Prioritization was done spatially using the suitable land gradually, corresponding to the government budget availability.
Co-Authors Atang Sutandi I Wayan Rusastra I Wayan Rusastra Irman Firmansyah Irman Firmansyah Khursatul Munibah Kukuh Murtilaksono Machfud Machfud Machfud Machfud Nurwadjedi Nurwadjedi Nurwadjedi Nurwadjedi, Nurwadjedi Rudi P Tambunan Rudi P Tambunan, Rudi P Sri Lestari Munajati, Sri Lestari Sudarsono Sudarsono Sudarsono Supiandi Supiham Suprajaka Suprajaka Suprajaka Suprajaka Widiatmaka Wiwin Ambarwulan Wiwin Ambarwulan Ambarwulan Yusanto A Nugroho Yusanto A Nugroho, Yusanto A