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ARAHAN DAN STRATEGI PENGEMBANGAN LAHAN SAWAH DI WILAYAH PESISIR PROVINSI KALIMANTAN BARAT Yustian, Yustian; Sudadi, Untung; Ardiansyah, Muhammad
Jurnal Ilmu Tanah dan Lingkungan Vol 16 No 1 (2014): Jurnal Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (678.605 KB) | DOI: 10.29244/jitl.16.1.31-37

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Wilayah Pengembangan (WP) Pesisir merupakan sentra produksi beras bahkan penyuplai untuk tiga WP lainnya di Provinsi Kalimantan Barat. Pada tahun 2015, penduduk di WP Pesisir diperkirakan 2.29 juta jiwa. Bila terjadi konversi lahan basah 30,000 ha tahun-1 dan tanpa penambahan luas lahan baku sawah, ada indikasi berkurangnya suplai beras diluar WP Pesisir dan tahun 2016 bahkan mengalami defisit beras. Oleh karena itu, diperlukan arahan yang komprehensif dan strategi untuk pengembangan sawah sawah. Penelitian ini bertujuan untuk: (1) mengidentifikasi lahan potensial, (2) menentukan keunggulan komparatif dan kompetitif, (3) menentukan tipologi lahan dan klaster, dan (4) menyusun arah secara spasial dan strategi untuk pengembangan sawah lahan basah di WP Pesisir. Hasil analisis spasial diperoleh luasan lahan potensial 411,950 ha untuk pengembangan padi sawah dari 5,664,580 ha luas total WP Pesisir. Berdasarkan analisis LQ dan SSA ada lima dari tujuh kabupaten/kota sebagai wilayah basis pertanian padi, sedangkan analisis tipologi membentuk tiga klaster wilayah. Keseluruhan hasil analisis menunjukkan bahwa Kabupaten Sambas dan Kabupaten Kubu Raya adalah Kabupaten yang paling besar luas lahan potensialnya disusul oleh Kota, merupakan wilayah basis unggulan dan aktivitas pertaniannya yang sudah berkembang sehingga paling diprioritaskan untuk pengembangan kawasan padi sawah.
ENCOURAGING STUDENTS’ SPEAKING SKILL BY USING DISCUSSION WEB STRATEGY COMBINED WITH ACADEMIC CONTROVERSY STRATEGY FOR SENIOR HIGH SCHOOL Ardiansyah, Muhammad; Handayani, Handayani
Pendidikan Bahasa Inggris Vol 2, No 2 (2013): Jurnal Mahasiswa Bahasa Inggris Genap 2012-2013
Publisher : Pendidikan Bahasa Inggris

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Abstract

ABSTRAKPengajaran berbicara dalam bahasa Inggris (Speaking)  adalah krusial bagi siswa. Bagi siswa pada sekolah menengah atas (SMA), mereka harus bisa menguasai kemampuan berbicara dalam bahasa Inggris (speaking). Dalam aplikasi pembelajaran bahasa Inggris, banyak siswa masih memiliki permasalahan dalam berbicara bahasa inggris (speaking). Banyak siswa yang tidak bisa berbicara dalam bahasa Inggris dengan aktif, ini disebabkan oleh mereka tak punya kesempatan yang lebih untuk meningkatkan kemampuan berbicara dalam bahasa Inggris.Dalam makalah ini, penulis membahas bagaimana pengajaran speaking melalui penggunaan kombinasi strategi Discussion Web dan strategi Academic Controversy. Strategi kombinasi ini mempermudah guru dalam meningkatkan kemampuan siswa dalam berbicara dalam bahasa Inggris. Selain itu strategi kombinasi ini juga meningkatkan kemampuan analisis, kritis, serta mengambil kesimpulan terhadap sebuah permasalahan. Strategi Discussion Web meningkatan kemampuan siswa dalam menganalisis sebuah permasalahan melalui grup. Strategy Academic Controversy  membantu siswa dalam meningkatkan kemampuan berbicara dalam bahasa Inggris (Speaking) melalui debate. Tujuan penggabungan dua strategi ini adalah supaya siswa mendapatkan kesempatan lebih dalam proses pembelajaran. Penulis berharap agar strategi kombinasi ini bisa menjadi panduan bagi guru dalam mengajar teks Analitycal Exposition.  
DINAMIKA PENGGUNAAN LAHAN DAN PERKEMBANGAN PERKEBUNAN KELAPA SAWIT DI KABUPATEN KUBU RAYA DAN SANGGAU TAHUN 1990-2013 Hanjani, Safira Sukma; Ardiansyah, Muhammad; Nadalia, Desi; Sabiham, Supiandi
Jurnal Ilmu Tanah dan Lingkungan Vol 17 No 1 (2015): Jurnal Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (731.355 KB) | DOI: 10.29244/jitl.17.1.39-45

Abstract

Land use is the result of the intervention of humans to land in order to satisfy the needs of life the material and spiritual, and it changes in line with the growing number of people's activities in regulating economic, social and cultural life. Land use patterns in Kubu Raya and Sanggau regencies for three decades changed significantly. Forest land cover in the decade 1970s in Kubu Raya was 100%, then it was started to open until 1991 for smallholder plantations, large plantations and mix plantations. While, in the Sanggau regency, in the period of 1996-2005 land cover forest and agroforestry change decreased significantly, which was followed by increasing plantation. The objectives of this research were to identify land use/cover change in Kubu Raya and Sanggau regencies and to determine the development of oil palm plantation that occurred during the years 1990-2013. The spatial data land use/cover was obtained from the Ministry of Forestry, which were reexamined using Landsat satellite images with the Land Cover Classification System of the Ministry of Forestry (SNI 7654: 2010). During the 1990-2013 period, land-use change had occurred dynamically. Forest land use consistently decreased while non-forest land such as open land, shrubland, swamp shrubland, and oil palm plantation relatively increased. In general, oil palm plantation in Sanggau regency increase was largely derived from the conversion of non-forest land use. In the period 1990-2009 the increase of oil palm land use was from secondary swamp forest while in the period 2009-2013, that was from non-forest land. Keywords: Land use/cover change, oil palm plantation
DETEKSI KONDISI KETAHANAN PANGAN BERAS MENGGUNAKAN PEMODELAN SPASIAL KERENTANAN PANGAN Dirgahayu, Dede; Jaya, I Nengah Surati; Purwadhi, Florentina Sri Hardiyanti; Ardiansyah, Muhammad; Triwidodo, Hermanu
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 2, No 2 (2012): 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.2.2.85

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In 2005 and 2009, BKP and WFP has provided food security conditions in Indonesia on Food Insecurity Map which were developed using food availability, food accessibility, food absorption and food vulnerability. There are 100 out of 265 districts in Indonesia or about 37,7%, which fall into the vulnerable to very vulnerable categories, where 11 districts were found in Java. The main objective of this research is to develope a spatial model of the rice production vulnerability (KPB) based on Remote Sensing and GIS technologies for estimating the food insecurity condition. Several criteria used to obtain food vulnerability information are percentage level of green vegetation (PV), rainfall anomaly (ACH), land degradation due to erosion (Deg), and paddy harvest failure due to drought and flood in paddy field (BK). Dynamic spatial information on the greenness level of land cover can be obtained from multitemporal EVI (Enhanced vegetation Index) of MODIS (Moderate Resolution Imaging Spectroradiometer) data. Spatial information of paddy harvest failure caused by drought and flood was estimated by using vegetation index, land surface temperature, rainfall and moisture parameters with advance image processing of multitemporal EVI MODIS data. The GIS technology were used to perform spatial modelling based on weighted overlay index (multicriteria analysis). The method for computing weight of factors in the vulnerability model was AHP (Analytical Hierarchy Process). The spatial model of production vulnerability (KPB) developed in this study is as follows: KPB = 0,102 PV + 0,179 Deg + 0,276 ACH + 0,443 BK. In this study, level of production vulnerability can be categorized into six classes, i.e.: (1) invulnerable; (2) very low vulnerability; (3) low vulnerability; (4) moderately vulnerable; (5) highly vulnerable; and (6) extremely vulnerable. The result of spatial modelling then was used to evaluate progress production vulnerability condition at several sub-districts in Indramayu Regency. According to the investigation results of WFP in 2005, this area fall into moderately vulnerable category. Only few sub-districts that fall into highly and extremely vulnerable during the period of May ~ August 2008, namely: Kandanghaur, Losarang, part of Lohbener, and Arahan.Keywords: remote sensing, GIS, food vulnerability, vegetation index, AHP
ANALISIS HUBUNGAN KODE-KODE SPBK (SISTEM PERINGKAT BAHAYA KEBAKARAN) DAN HOTSPOT DENGAN KEBAKARAN HUTAN DAN LAHAN DI KALIMANTAN TENGAH Prasasti, Indah; Boer, Rizaldi; Ardiansyah, Muhammad; Buono, Agus; Syaufina, Lailan; Vetrita, Yenni
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 2, No 2 (2012): 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.2.2.101

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Land and forest fire is one of causes ofland degradation in Central Kalimantan. Remote sensing dataapplications, especially READY-ARL NOAA and CMORPH data, are benefit forthe available climate observation data. The objectives of this research are: (1) to analyzis relationship between hotspots, FDRS and occurences of land and forest fire, and (2) to develop the estimation model of burned area from hotspot and FDRS codes. The result of this research showed that burned area can not be estimated by using number of hotspots. The drought code (DC) wich is one of FDRS codes has correlation with burned area. So, burned area can be estimated using drought code (DC) (R-sq = 58%) by using the following formula: Burned Area (Ha) = -62.9 + 5.14 (DC – 500).Keywords: land and forest fire, NOAA, CMORPH, hotspot
Hubungan antara Tingkat Pendidikan dengan Kejadian Penurunan Daya Ingat pada Lansia Khasanah, Novia; Ardiansyah, Muhammad
Jurnal Mutiara Medika Vol 12, No 3 (2012)
Publisher : Fakultas Kedokteran dan Ilmu Kesehatan Universitas Muhammadiyah Yogyakarta

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Prevalensi terjadinya demensia pada lansia di Indonesia semakin meningkat. Demensia dapat terjadi karena berbagai faktor. Tingkat pendidikan merupakan salah satu faktor yang memiliki hubungan dengan kejadian demensia pada lansia. Penelitian ini bertujuan untuk mengetahui hubungan tingkat pendidikan dengan kejadian demensia pada lansia. Penelitian ini dilaksanakan di Panti Sosial Tresna Wredha Yogyakarta unit Abiyoso dan Budiluhur. Jenis penelitian ini adalah analitik observasional dengan pendekatan studi cross sectional. Sampel yang diambil dengan menggunakan teknik purposive sampling berjumlah 32 orang lansia usia 70-80 tahun, dengan kriteria inklusi dan eksklusi tertentu, dengan menggunakan data dari kuesioner, serta instrument MMSE (Mini Mental State Examination) untuk mengetahui derajat demensia pada respoden tersebut. Data yang diperoleh dianalisis dengan menggunakan uji korelasi Spearman dan hasil perhitungan didapatkan hasil korelasi negatif kuat (r=-0,686), dengan nilai p 0,01 (p<0,05), maka ada hubungan yang signifikan. Penelitian ini menunjukkan terdapat hubungan antara tingkat pendidikan dengan kejadian demensia pada lansia. The prevalence of dementia in Indonesia is increasing. Dementia is caused by many factors. Level of education is one of the dementia related factors in elderly. The aim of the research is to identify the correlation between level of education and dementia in elderly. The location of research at Panti Sosial Tresna Wredha Abiyoso and Budiluhur unit. This research is analytic observational which is using cross sectional study. Sampel is taken with purposive technique sampling, 32 elderly 70 – 80 years old, with inclution and exclution  criteria. This research is using data from questioner, and also MMSE (Mini Mental State Examination) to asses their dementia degree. The data analysed with Spearman correlation. The result of correlation is r=-0,686, and p value = 0,01 which is p value < 0,05, it means that the correlation is significant. Based on the result obove show there is significant correlation between level of education with dementia.
MITIGASI DAN ARAHAN PENGELOLAAN AIR ASAM TAMBANG MELALUI HUTAN RAWA BUATAN DI LAHAN PASCA TAMBANG Yusmur, Armaiki; Ardiansyah, Muhammad; Mansur, Irdika
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 9 No. 3 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.3.566-576

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The application of remote sensing using Unmanned Aerial Vehicle (UAV) technology to identify distribution of Acid Mine Drainage (AMD) as part of mitigation process has been done in PT. Jorong Barutama Greston. UAV imagery was interpreted visually to produce land cover map. Bare land area from land cover map is used as the boundary of the analysis area for the mitigation of AMD source. Color of soil in UAV images is used as training area for supervised classification to differentiate different pH. The result shows distribution of soil with pH between 2-3 is 1.2 ha, pH 3-4 is 4.5 ha, and pH 4-5 is 9 ha. This analysis can show that mapping results using aerial photo is effective to identify pH of soil in bare land as a source of acid to water in void and it used as input for revegetation and swamp forest planning as bio-phytoremediation efforts. Swamp forest as a wetland is one recomendation for sustainable water management on mine to increase pH and reduce heavy metal content. The success of constructed swamp forest as passive treatment for bio-phytoremediation is determined by the selection of plant species, site location, design and construction of swamp forest and maintenance. Typha latifolia, Salvinia sp., Fimbristylis globulosa, Chrysopogon zizanioides, Melaleuca leucadendra, Melaleuca cajuputi, Nauclea subdita and Nauclea orientalis L. are recom-mended as local selected plants for phytoremediation. Obtained six variables that significantly affected to determination of site location for constructed swamp forest are elevation (T), slope (S), land cover (L), cathment area (C), distance from channel (K) and distance from the monitoring pool (P). The model X = 0.2T + 0.2S + 0.1L + 0.15C + 0.3K + 0.05P applied to find very suit-able area with ? = 0.05 and the R-square (R2) value 93.4%.
STUDI PROVENANCE BATUPASIR FORMASI WALANAE DAERAH LALEBATA KECAMATAN LAMURU KABUPATEN BONE PROVINSI SULAWESI SELATAN Ardiansyah, Muhammad; Farida, Mutia; Irvan, Ulva Ria
Jurnal Penelitian Geosains Vol 11, No 1 (2015)
Publisher : Jurnal Penelitian Geosains

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Abstract

Almost of Walanae Formation consist of siliciclastic rocks. Provenance study is needed to determinate the source rocks because these rocks formed from earlier rocks. Administratively, the study area is located in Lalebata area, Lamuru District, Bone Regency, South Sulawesi Province.The purpose of this research is to study the provenance of Walanae Formation sandstone. The method were used measuring section and petrography analysis that used in genetic and empiric classification. Based on thin section analysis by compare between the monoquarst and polyquarst. The sandstone provenance of the area are plutonic igneous rocks, volcanic rocks and metamorphic rocks. The result of this study indicate that provenance of the Walanae sandstone derived from arround Formations are Igneous rocks and metamorphic rocks and included as Recycled Orogen and Mamatic Arc Provenance type.Keywords: Walanae Formation, Provenance, monoquarst, polyquarst, Recycled Orogen, Magmatic Arc Provenance
Pengembangan Model Ellips Untuk Pendugaan Fluktuasi Muka Air Tanah pada Lahan Rawa Pasang Surut Ngudiantoro, Ngudiantoro; Pawitan, Hidayat; Ardiansyah, Muhammad; J. Purwanto, M. Yanuar; H. Susanto, Robianto
Jurnal Penelitian Sains Vol 11, No 3 (2008)
Publisher : Faculty of Mathtmatics and Natural Sciences

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Banyak fenomena pergerakan objek dalam alam berupa elips. Gerakan fluktuasi permukaan air di bawah tanah antara dua saluran tersier juga mungkin digambarkan dalam bentuk elips. Permukaan air di bawah tanah di atas area dataran rendah berubah-ubah sesuai dengan ruang serta waktu. Faktor-faktor yang mempengaruhi fluktuasi permukaan air di bawah tanah adalah curah hujan, evapotranspiration, rapi dari permukaan air laut, konduktivitas hidrolik tanah dan sistem reklamasi penjaringan. Tujuan-tujuan penelitian ini untuk mengembangkan satu model fluktuasi permukaan air bawah tanah terhadap area dataran rendah. Hasil dari penelitian adalah diharapkan mendukung pengembangan agrikultur terhadap area dataran rendah, terutama manajemen air, karena manajemen air berperan penting pada agrikultur terhadap area dataran rendah. Kirkham telah merumuskan persamaan dari ketinggian permukaan air di bawah tanah dan pengaturan jarak parit sebagai digambarkan oleh elips Dupuit-Forchheimer. Model fluktuasi permukaan air di bawah tanah dikembangkan pada penelitian ini berbasis pada konsep lonjong. Berlawanan dengan Kirkham, perbatasan parit di model difluktuasi permukaan air di bawah tanah adalah terletak di atas titik utama dari elips (fokus dan titik puncak elips). Hasilnya dari penelitian itu adalah memperkirakan model tabel dalamnya air terhadap area dataran rendah rapi serta persamaan pengaturan jarak parit di blok tersier. Simulasi dari permodelan menunjukkan bahwa parameter dari permukaan air di saluran tersier mempunyai sensitifitas tinggi ke/pada model.
PEMODELAN FLUKTUASI MUKA AIR TANAH UNTUK MENDUKUNG PENGELOLAAN AIR PADA PERTANIAN LAHAN RAWA PASANG SURUT TIPE A/B Ngudiantoro, Ngudiantoro; Pawitan, Hidayat; Ardiansyah, Muhammad; J. Purwanto, M Yanuar; Susanto, Robiyanto H.
Jurnal Matematika Sains dan Teknologi Vol 10 No 2 (2009)
Publisher : LPPM Universitas Terbuka

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The objectives of this research are to develop a model of water table fluctuation on tidal lowland area of A/B type. The results of the research are expected to support of the agricultural development on tidal lowland area, especially on water management, because the water management play an important role in the agricultural on tidal lowland area. The water table on tidal lowland area fluctuates according to space and time. The water table controls at a certain depth can support the plant growth and the pyrite oxidation restraint. The model of water table fluctuation which is developed in this research based on the ellipse concept. The research was conducted on the reclamation area of tidal lowland at the fourth tertiary block in P8-12S Delta Telang I, Banyuasin district, South Sumatra province. The simulations of model show good result of estimating the depth of water table on tidal lowland area of A/B type. The proportion of variation the depth of water table which can be explained by model that is 89,6% up to 95,5% with standard error of the estimate is 0,021-0,035 meters. The parameter of the water level in the tertiary canals has high sensitivity to the model.