Articles

Translation of Micromorphological Terminology Used in "Handbook for Soil Thin Section Description [Bullock et al., 1985]"

Jurnal Ilmu Tanah & Lingkungan Vol 2, No 1 (1999): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Jurnal Ilmu Tanah & Lingkungan

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Abstract

Mikromorfologi merupakan salah satu cabang ilmu dalam ilmu tanah. Dalam studi mikromorfologi, contoh tanah terlebih dahulu disiapkan sebagai suatu irisan tipis (dengan berbagai metoda), kemudian fenomena yang ada di dalamnya diperiksa menggunakan mikroskop. Dengan mengetahui susunan,bentuk, orientasi, pol a distribusi, struktur dll, fenomena yang terjadi dapat diinterpretasi, baik mengenai komposisi tanah, hubungan antar komponen maupun dinamika proses yang telah,sedang atau diperkirakan akan terjadi di dalam tanah. Dengan demikian, mikromorfologi dapat dan sangat prospektif pula untuk dikembangkan dan diterapkan bagi berbagai penggunaan diluar bidang ilmu tanah.

Kajian Finansial Pengembangan Biodiesel Kemiri Sunan (Reutealis Trisperma (Blanco) Airy Shaw) Pada Lahan Tersedia Di Jawa Barat

Jurnal Penelitian Sosial dan Ekonomi Kehutanan Vol 12, No 1 (2015): Jurnal Penelitian Sosial Ekonomi Kehutanan
Publisher : Pusat Penelitian dan Pengembangan Perubahan Iklim dan Kebijakan

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Abstract

Salah satu bahan nabati potensial di Indonesia sebagai sumber biodiesel adalah kemiri sunan (Reutealis trisperma (Blanco) Airy Shaw). Penelitian bertujuan mengkaji: 1) kelayakan finansial penanaman kemiri sunan; 2) kelayakan finansial pengolahan biodiesel kemiri sunan; 3) pengembangan unit usaha pada lahan tersedia. Hasil penelitian menunjukkan bahwa penanaman kemiri sunan layak diusahakan pada luas 60 ha, umur usaha 50 tahun. Nilai kelayakan dengan dana sendiri: NPV Rp 1.101.007.645; IRR 13,52%; BCR 1,36; PBP 14,68 tahun. Nilai kelayakan dengan dana pinjaman : NPV Rp 160.351.357; IRR 13,52%; BCR 1,08; PBP 22,55 tahun. Pembangunan tanaman kemiri sunan sensitif terhadap penurunan harga jual biji kering dan penurunan produktivitas tanaman ≥ 28%. Pengolahan biodiesel layak diusahakan pada umur usaha 15 tahun, kapasitas produksi 202,75 Kl/tahun. Nilai kelayakan dengan dana sendiri : NPV Rp 512.549.740; IRR 27,27%; BCR 1,04; PBP 4,32 tahun. Nilai kelayakan dengan dana pinjaman: NPV Rp 303.310.940; IRR 27,27%; BCR 1,03; PBP 4,94 tahun. Pengolahan biodiesel kemiri sunan sensitif terhadap kenaikan biaya bahan dan tenaga kerja penurunan harga biodiesel mencapai ≥6%. Jika seluruh lahan tersedia ditanami akan berpeluang menghasilkan 2.365 unit usaha dan biodiesel yang memenuhi 16,68% kebutuhan solar Jawa Barat.

APPRAISAL KEBERLANJUTAN MULTIDIMENSI PENGGUNAAN LAHAN UNTUK SAWAH DI KARAWANG - JAWA BARAT

Jurnal Kawistara Vol 5, No 2 (2015)
Publisher : Sekolah Pascasarjana UGM

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Abstract

Indonesian national food sovereignty is very dependent on the supply of rice from paddy fields in Java Island. Various factors influence the farmer’s decision to continue using his farm. This study aims to analyze the sustainable use of paddy field, determinant factors and strategies for improving sustainability. The study was conducted in Karawang Regency, one of the centers of rice production in West Java. The methodology used is a multi-dimensional scaling (MDS) using 43 attributes of 5 dimensions (ecological, social, economical, technological and legal and institutional dimension). Against the sensitive attribute analysis resulting from MDS, a prospective analysis was conducted to determine the key factors of sustainability. Priority policies for improving sustainability are developed based on the location of the key factors in the prospective diagram. The research results showed that the land utilization for paddy field in Karawang is actually less sustainable. Increasing the sustainability can be done through intervention and improving performance, preferably on sensitive attributes resulting from leverage analysis, covering 16 attributes. Priority policies is directed in the 5 key factors resulting from prospective analysis. Policies suggested are the tightening of new permits for building, strict implementation of the official spatial land use planning and delineation of agricultural land for sustainable food crops, counseling the community, revitalizing the role of BULOG, provision of subsidies as well as capital assistance to farmers.

EFFECT OF ZEOLITE ADDITION TO PLANT GROWTH MEDIA ON CANTALOUPE AND WATERMELON PLANTS IN HYDROPONIC SYSTEM

Jurnal Zeolit Indonesia Vol 3, No 1 (2004)
Publisher : Jurnal Zeolit Indonesia

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Abstract

The objectives of this research are to evaluate the effect of zeolite addition on watermelon and cantaloupe production and growing. The research carried out in green house of Bogor Agricultural University and the plant growth media (PGM) analysis carried out at Department of Soil Science, Faculty of Agriculture, Bogor Agricultural University. Single factor completely randomize design was used with four treatments and five repetitions. Plant growth media composition treatments effect the physical and chemical properties of PGM. The bulk density of PGM increase from from 0.22 to 0.56 g/cm3 and water holding capacity drop from 326.58 to 85.38 along with zeolite percentages added. The effects of zeolite on chemical characteristic of PGM is decreasing electrical conductivity rate before planting. PGM composition treatment did not positively effects on watermelon and cantaloupe growth, however there is an increasing on main stalk length and leaf quantity on cantaloupe. For watermelon, the increasing of growth parameter happened on 10% zeolite percentage. For fruit quality, PGM treatment positively effects on organoleptic test result 10% of zeolite giving the best result on the increasing of the average value of production and growth parameter.

EVALUASI POLA RUANG BERBASIS KERAWANAN BANJIR DI KABUPATEN PIDIE

TATALOKA Vol 17, No 3 (2015): Volume 17 Number 3, August 2015
Publisher : Universitas Diponegoro

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Abstract

Pidie is one of the districts in Aceh Province that has been suffering from flooding. Frequent disasters, especially flooding associated with various causative factors, need mitigation efforts. An appropriate land use planning by considering the risk aspects especially in flood is an important step. Objectives of this study are to determine the factors influencing the flood hazard, to map the areal distribution vulnerable to flood, to analyze the relations of land use in the flood hazard area, and to analyze the relations between the planned spatial pattern and the flood hazard area. ,Multicriteria analysis was used to determine the factors influencing the flood hazard. Spatial analysis was used in mapping the class of flood hazard, the relations of land use in the flood hazard area, and the relations between the planned spatial pattern and the flood hazard area. The results show that the main factors influencing flood vulnerability are land use/cover (0.408), rainfall (0.266), and slope (0.184). Based on the classification of flood vulnerability, the area can be divided into more vulnerable (37.75 %), less vulnerable (30 %), and mildly vulnerable (22.76 %). The vulnerability classes of the land use/cover are: less vulnerable (99.99 %) and more vulnerable (97.57 %) dominated by forest cover; mildly vulnerable (51.07%) and vulnerable (92.65%) dominated by mixed farming; and very vulnerable (97%) dominated by settlement. The flood vulnerability of the planned spatial pattern can be classified as follows: 95.44 % of the conservation area is dominated by less vulnerable and more vulnerable, while 71.20 % of the cultivation area can be categorized into mildly vulnerable, vulnerable and very vulnerable.

DAYA DUKUNG LINGKUNGAN BERBASIS KEMAMPUAN LAHAN DI TUBAN, JAWA TIMUR

Jurnal Manusia dan Lingkungan (Journal of People and Environment) Vol 22, No 2 (2015)
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

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Abstract

Evaluasi daya dukung lingkungan merupakan bagian dari upaya mewujudkan pembangunan berkelanjutan. Salah satu metoda evaluasi daya dukung lingkungan adalah evaluasi berbasis kemampuan lahan. Penelitian ini bertujuan untuk melakukan evaluasi daya dukung lingkungan berbasis kemampuan lahan di Tuban, Jawa Timur. Evaluasi dilakukan dengan mengkaji kesesuaian antara kemampuan lahan dengan penggunaan lahan aktual dan alokasi Pola Ruang dalam Rencana Tata Ruang Wilayah Kabupaten. Kemampuan lahan dievaluasi pada setiap Satuan Peta Lahan yang diperoleh dari survai lapangan tahun 2014. Penggunaan lahan aktual dianalisis menggunakan citra Landsat 8 OLI tahun peliputan 2013. Hasil analisis menunjukkan bahwa kemampuan lahan di wilayah penelitian berkisar dari kemampuan lahan kelas II sampai kelas VIII. Wilayah dengan kemampuan lahan yang memungkinkan untuk pengusahaan budidaya (kelas II-IV) mencakup 78,6% wilayah studi, sementara wilayah yang tidak memungkinkan untuk budidaya (kelas V-VIII) mencakup 21,4% wilayah studi. Faktor pembatas kemampuan lahan terdiri dari tekstur tanah, kedalaman efektif, drainase, lereng dan genangan/banjir. Saat ini, 32% wilayah di Kabupaten Tuban penggunaan lahannya sesuai dengan kemampuan lahannya, 66,4% wilayah digunakan melebihi kemampuan lahannya. Dalam hal alokasi lahan pada pola ruang, 67,3% wilayah dialokasikan penggunaan lahannya sesuai dengan kemampuan lahannya, sedangkan 31% dialokasikan melebihi kemampuan lahannya. Temuan ini dapat digunakan untuk mengontrol penggunaan lahan di Kabupaten Tuban dan menjadi bahan revisi Rencana Tata Ruang Wilayah Kabupaten agar penggunaan lahan dialokasikan sesuai dengan kemampuan lahannya.

Land Use Planning for Brackish Water Shrimp Ponds in The North Coast of Tuban, Indonesia

Indonesian Journal of Geography Vol 47, No 2 (2015): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

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Abstract

Shrimp is a commodity that is increasingly in demand. The limited land resources implies the need of effective land use planning. The objective of this study was to assess land suitability for brackish water shrimp ponds, which then will be recommended for pond development in the north coast of Tuban, Indonesia. Analytical hierarchy process (AHP) were used to obtain the weight of the different criteria consisted of soil characteristics, topographic, water quality, and infrastructure criteria. The suitable land for brackish water shrimp ponds was determined by weighted overlay in GIS. The results show that the study area contains highly suitable land for brackish water shrimp ponds. Land use and land cover map was interpreted from 2014 SPOT 5 imagery. The area recommended for brackish water shrimp pond wasdelineated by taking into account the suitability and the constraints of land use and land cover.

APPRAISAL KEBERLANJUTAN MULTIDIMENSI PENGGUNAAN LAHAN UNTUK SAWAH DI KARAWANG - JAWA BARAT

Jurnal Kawistara Vol 5, No 2 (2015)
Publisher : Sekolah Pascasarjana UGM

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Abstract

Indonesian national food sovereignty is very dependent on the supply of rice from paddy fields in Java Island. Various factors influence the farmer’s decision to continue using his farm. This study aims to analyze the sustainable use of paddy field, determinant factors and strategies for improving sustainability. The study was conducted in Karawang Regency, one of the centers of rice production in West Java. The methodology used is a multi-dimensional scaling (MDS) using 43 attributes of 5 dimensions (ecological, social, economical, technological and legal and institutional dimension). Against the sensitive attribute analysis resulting from MDS, a prospective analysis was conducted to determine the key factors of sustainability. Priority policies for improving sustainability are developed based on the location of the key factors in the prospective diagram. The research results showed that the land utilization for paddy field in Karawang is actually less sustainable. Increasing the sustainability can be done through intervention and improving performance, preferably on sensitive attributes resulting from leverage analysis, covering 16 attributes. Priority policies is directed in the 5 key factors resulting from prospective analysis. Policies suggested are the tightening of new permits for building, strict implementation of the official spatial land use planning and delineation of agricultural land for sustainable food crops, counseling the community, revitalizing the role of BULOG, provision of subsidies as well as capital assistance to farmers.

ANALISIS STATUS KEBERLANJUTAN PENGELOLAAN AIR BAKU DI KABUPATEN KONAWE PROVINSI SULAWESI TENGGARA

Bumi Lestari Vol 14, No 2 (2014)
Publisher : Udayana University

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Abstract

The water supply to support the development and human needs need to be guaranteed forthe sustainable condition. Decreased water availability and increased water demand hasoccurred in Konawe Regency Southeast Sulawesi Province. In order to the management forwater supply in Konawe Regency can take place in a sustainable condition, it is necessary toapply the concept of sustainable development through the conservation of water resources.This study aims to analyze the sustainability of the status of water management for sustainablewater supply in Konawe Regency, and analyze the important factors that affect the sustainabilityof water management in the Konawe Regency. The analytical method used is a MultiDimensional Scaling called Rap-Konawe. The results are expressed in terms of index andstatus of sustainability. The analysis on the five dimensions indicate that the ecologicaldimension is sustainable enough (52.36%), economic dimension is less sustainable (36.93%),social dimension is less sustainable (34.16%), technology dimension is less sustainable(35.39%), and institutional dimension is less sustainable (35.39%). There was 12 attributesneed to be taken care immediately because of the sensitive affect on the increase of index andsustainability status.

ANALISIS KELEMBAGAAN PENGELOLAAN AIR BAKU BERKELANJUTAN DENGAN METODE INTERPRETATIVE STRUCTURAL MODELLING (ISM) DI KABUPATEN KONAWE SULAWESI TENGGARA

Jurnal Ecogreen Vol 4, No 2 (2018)
Publisher : Universitas Haluoleo

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Abstract

ABSTRAKPenurunan ketersediaan air dan peningkatan kebutuhan air telah terjadi di Kabupaten Konawe Provinsi Sulawesi Tenggara. Hal ini disebabkan karena perubahan penggunaan lahan akibat eksploitasi lahan secara terus menerus sehingga terjadi penurunan kapasitas infiltrasi dan peningkatan aliran permukaan. Berdasarkan permasalahan diatas maka diperlukan strategi pengelolaan dan pengembangan peran kelembagaan sehingga pengelolaan air baku untuk penyediaan air bersih di Kabupaten Konawe dapat berlangsung secara berkelanjutan. Penelitian ini dilakukan dengan tujuan: (1) menganalisis peran kelembagaan ditinjau dari aspek kendala yang dihadapi, kebutuhan program pemerintah terkait, dan lembaga yang berperan dalam pengelolaan air baku untuk penyediaan air bersih berkelanjutan di Kabupaten Konawe; dan (2) mengembangkan model kelembagaan pengelolaan air baku untuk penyediaan air bersih di Kab. Konawe dengan metode Interpretative Structural Modeling (ISM). Hasil penelitian menunjukkan bahwa untuk implementasi model, terdapat tiga elemen sistem yang perlu diperhatikan. Tiga elemen sistem dengan masing-masing sub elemen kuncinya yaitu: (1) kendala (menurunnya fungsi resapan air akibat berkurangnya vegetasi pada daerah tangkapan air, dan kurangnya koordinasi dan keterpaduan pengelolaan sumber daya air antar stakeholder terkait); (2) kebutuhan (peningkatan pengetahuan dan ketrampilan aparat SKPD terkait, dan peningkatan kesadaran stake holder terkait); dan (3) lembaga (BP DAS Sampara, Forum DAS Sultra dan Dinas Kehutanan Kab. Konawe). Kata kunci: model, kelembagaan, air baku, air bersih, ISM   ABSTRACTDecreased water availability and increased water demand has occurred in Southeast Sulawesi Konawe. This is caused by changes in land use due to continuous exploitation of land resulting in a decrease in infiltration capacity and increased surface runoff. Based on the above issues will require the development of management strategies and the role of institutions, so that the management of raw water for water supply in Konawe District can take place in a sustainable manner. This study was conducted with the aim of: (1) analyze the role of institutional on the aspects of constraint, the needs related government programs, and agencies that play a role in the management of raw water for water supply sustainable in Konawe district, and (2) develop a model of water management institutions of water supply in the Konawe District with Interpretative Structural Modeling method (ISM). The results showed that for the implementation of the model, there are three elements of the system that need to be considered. Three elements of the system with each of the key sub elements, namely: (1) constraint (decreasing function of water absorption due to reduced vegetation in the catchment area, and the lack of coordination and integration of water resources management among related stakeholders), (2) needs (increased knowledge on education and skills related apparatus, and an increased awareness of all related stakeholders), and (3) agency (BP DAS Sampara, Forum DAS Sultra and Dinas Kehutanan Konawe District) . Keywords : models, institutional, raw water, clean water, ISM

Co-Authors Achmad Yamani, Achmad Asep Sapei Astiana Sastiono Atang Sutandi Bambang Pramudya Benar Darius Ginting Soeka, Benar Darius Ginting Boedi Tjahjono, Boedi Budi Mulyanto Budianto, Bambang Setio CECEP KUSMANA Chairunnisa, Chaida Dudung Darusman Dwi Putro Tejo Baskoro Ema Suhaema, Ema Endang Suhendang Ernan Rustiadi Fatmawaty Fatmawaty, Fatmawaty Hefni Effendi Herwirawan, Fransiscus Xaferius I WAYAN RUSASTRA Irman Firmansyah Jarwadi Purwanto, Muhammad Yanuar Juwarin Pancawati, Juwarin K MURTILAKSONO Kadarwan Soewardi Keratorop, Marianus Khursatul Munibah Komarsa Gandasasmita Kukuh Murtilaksono Kusmaryandi, Nandi Lilik Budi Prasetyo M Ardiansyah, M M Yanuar J Purwanto M Yanuar J. Purwanto, M Yanuar M. Bagus Pangestu, M. Bagus M. Yanuar J. Purwanto Machfud Machfud Muhamad Yanuar Jarwadi Purwanto, Muhamad Yanuar Jarwadi Muhammad Ardiansyah Nata Suharta Nia Rachmawati Nurwadjedi Nurwadjedi, Nurwadjedi Paulus B.K. Santoso Prima Jiwa Osly Purnama, Hendri Rachman, Noer F Rafiuddin, Alwan Ridwan Adi Surya, Ridwan Adi Rudi P Tambunan, Rudi P S H Sutjahjo S Sabiham Saida, Saida Santoso, Paulus Basuki Kuwat Santun R.P. Sitorus Sarwono Hardjowigeno Sigit Santosa Siti Nurisjah Sitorus, Santun R. P. Solihin, Muhammad Amir Sri Lestari Munajati, Sri Lestari SUDARSONO SUDARSONO Supiandi Sabiham Suprajaka Suprajaka Suwardi Suwardi Suwarno Suwarno Taryono Taryono Tejaningrum, Miranti Anisa Teti Arabia Wening Sri Wulandari, Wening Sri Wiwin Ambarwulan Wiwin Ambarwulan Ambarwulan Wuri Cahyaningrum, Wuri Yudi Setiawan Yudi Setiawan4, Yudi Yusanto A Nugroho, Yusanto A