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ANALISIS DEGRADASI UNTUK PENYUSUNAN ARAHAN STRATEGI PENGENDALIANNYA DI TAMAN NASIONAL GUNUNG HALIMUN–SALAK PROVINSI JAWA BARAT Carolyn, Rully Dhora; Baskoro, Dwi Putro Tejo; Prasetyo, Lilik Budi
MAJALAH ILMIAH GLOBE Vol 15, No 1 (2013)
Publisher : Badan Informasi Geospasial

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (618.771 KB) | DOI: 10.24895/MIG.2013.15-1.70

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ABSTRAKPenelitian ini mengkaji status degradasi hutan pada Taman Nasional Gunung Halimun-Salak (TNGHS). Petakerapatan tajuk dihasilkan dari citra Landsat tahun 2003, 2006 dan 2011, yang selanjutnya digunakan untukmendeteksi kelas kerapatan hutan dan tingkat degradasi hutan. Degradasi hutan terjadi akibat interaksi berbagaifaktor, oleh karena itu analisis terhadap faktor-faktor yang diduga memberikan pengaruh terhadap degradasi hutanpenting untuk dikaji, antara lain faktor fisik dan sosial. Teknik Stepwise Generalized Linear/Nonlinear Regression yangdigunakan untuk melihat faktor-faktor ini menunjukkan bahwa jarak Desa dengan Kecamatan, laju perubahan luaslahan non pertanian, laju pertumbuhan penduduk dan persentase perubahan jumlah keluarga pertanian merupakanfaktor-faktor yang berpengaruh terhadap luas degradasi. Memperhatikan hal tersebut maka disusunlah alternatifstrategi pengendalian degradasi hutan dengan menggunakan teknik Analytic Hierarchy Process. Berdasarkanpembobotan, disimpulkan bahwa strategi yang paling penting sebagai langkah awal pengendalian degradasi hutanadalah strategi penyelarasan Rencana Tata Ruang Wilayah Kabupaten Bogor dengan Surat Penunjukkan TNGHS.Kata Kunci : Degradasi Hutan, Faktor-Faktor yang Berpengaruh, Regulasi.ABSTRACTThe study investigated the status of forest degradation in Gunung Halimun-Salak National Park. Forest canopydensity maps derived from 2003, 2006, and 2011 Landsat satellite imagery, were used to detect the forest canopydensity and forest degradation level. Forest degradation caused by interaction of many factors, therefore it is importantto examine the driving factors of forest degradation, such as social and physical factors. Stepwise generalizedlinear/nonlinear regression models were applied. The results showed that the distance to the nearest town, the growthof builtup area (non agriculture area), population growth, and amount of agriculture family unit are significantlyinfluencing forest degradation. Considering the driving factors, the alternative strategy have been arranged and scoredby Analytic Hierarchy Process. It was concluded that synchronization between Bogor Regency regional planning andofficially status authorized of the Park was the most important strategy to become starting point to manage forestdegradation in Gunung Halimun-Salak National Park.Keyword : Forest Degradation, Driving Factors, Regulation.
STRATEGI PENGEMBANGAN KOMODITAS PERKEBUNAN BERBASIS DAYA DUKUNG LAHAN DI KABUPATEN MAJENE Fatmawaty, Fatmawaty; Baskoro, Dwi Putro Tejo; Widiatmaka, Widiatmaka
MAJALAH ILMIAH GLOBE Vol 17, No 1 (2015)
Publisher : Badan Informasi Geospasial

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.614 KB) | DOI: 10.24895/MIG.2015.17-1.215

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Kemampuan lahan merupakan potensi lahan untuk penggunaan berbagai sistem pertanian secara umum untuk penggunaan lahan berkelanjutan. Kemampuan lahan adalah salah satu metode untuk mengetahui daya dukung lahan. Kabupaten Majene merupakan salah satu kabupaten di Provinsi Sulawesi Barat yang sebagian besar mata pencaharian penduduknya adalah sebagai petani. Komoditas pertanian seperti perkebunan dianggap sangat membantu perekonomian masyarakat, tetapi penurunan produktivitas perkebunan mengakibatkan dampak negatif bagi pendapatan masyarakat. Kegiatan pertanian selalu ditandai dengan pembukaan lahan baru. Oleh karena itu, jika aktivitas pertanian mengabaikan kemampuan lahan maka lahan akan menjadi rusak. Penelitian ini bertujuan untuk mengetahui kesesuaian penggunaan lahan dengan kemampuan lahan dan RTRW dan menyusun strategi pengembangan komoditas unggulan. Hasil penelitian menunjukkan bahwa terdapat 4 kelas kemampuan lahan dan 12 sub-kelas kemampuan lahan dengan faktor pembatas dominan adalah lereng. Sebagian penggunaan lahan di beberapa area tidak cocok dengan kemampuan lahannya yaitu sebesar 28%, sedangkan ketidakcocokan penggunaan lahan dengan RTRW jauh lebih sedikit, yakni 14,8%. Strategi yang diharapkan dapat meningkatkan komoditas perkebunan adalah menjaga kesuburan tanah, pengendalian hama terpadu, penerapan pola tanam, meningkatkan kualitas sumber daya petani, meningkatkan peran penyuluh, pembangunan dan perbaikan infrastruktur serta manajemen panen/pasca panen.Kata kunci: Strategi pengembangan komoditas, kemampuan lahan, komoditas unggulanABSTRACTLand capability is potentials land for uses of various agricultural systems for general sustainable land uses. Land capability is one of methods to determine carrying capacity of land. Majene Regency is one of regencies in West Sulawesi Province with major of livelihoods is as farmers. Agricultural commodities especially plantation is very important for the people‟s welfare in this area, but the decrease in productivity have negative impacts to the farmers‟ income. Agricultural activities always be marked with opening new land. Therefore, if land capability ignored then the land will be degraded. This research aims to evaluate conformity of the existing land use and land capability with spatial planning (RTRW) and to arrange a leading community development strategy. The results showed that land has four capability classes and twelve capability sub-classes with slope concerns as the dominant limiting factor. The land uses in some areas do not match with their land capabilities accounted for 28%, while unconformity land uses to spatial planning (RTRW) is far less, accounted for 14,8%. The strategies to increase the plantation commodities are by maintaining soil fertility, integrated pest management, implementation of cropping patterns, development of farmer resource, development role of agricultural extension agents, development and improvement of infrastructure and management of harvest and postharvest.Keywords : commodity development strategy, land capability, leading commodity
Analysis of Soil Physics Quality Index in Terms of Soybean Crop Productivity Putri, Savitri Khairunnisa; Baskoro, Dwi Putro Tejo; Rachman, Latief Mahir
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 45, No 2 (2021)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v45n2.2021.163-173

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Abstrak. Sifat fisika tanah merupakan salah satu sifat tanah yang menentukan kualitas suatu tanah serta salah satu penentu kesuburan tanah, serta berperan dalam pertumbuhan dan produksi tanaman, sehingga perlu ditentukan indeks kualitas fisika tanah. Penelitian ini bertujuan untuk mengetahui indeks kualitas fisika tanah (IKFT) pada tanaman kedelai berdasarkan perlakuan yang diberikan dan untuk mengetahui hubungan indeks kualitas fisik tanah dengan produktivitas kedelai. Lokasi penelitian ini berada di Kebun Percobaan Pacet, Kabupaten Cianjur, Provinsi Jawa Barat. Sifat fisik tanah yang digunakan untuk menentukan IKFT adalah tekstur, bulk density, porositas, pori drainase, air tersedia, permeabilitas, dan stabilitas agregat. Setiap parameter fisika tanah menggunakan skor dalam rentang 0 sampai 5. Penetapan IKFT pada lahan dapat menunjukkan berbagai kualitas sifat fisika tanah yang diwakili oleh beberapa sifat fisika tanah. Indeks kualitas fisika tanah (IKFT) pada masing-masing unit yang ditanami kedelai, yaitu berkisar antara 0,74-0,91 dengan kategori agak baik (P10) sebagai kontrol, baik (P1-P7 dan P9), dan sangat baik (P8). Indeks kualitas fisika tanah memiliki hubungan linier positif sedang antara IKFT dengan produktivitas kedelai (R = 0,4223) yang berarti semakin tinggi indeks kualitas fisika tanah maka produktivitas kedelai semakin tinggi.Kata kunci: sifat fisika tanah, indeks kualitas fisika tanah, tanaman kedelai Abstract.  Soil physical properties are one of the soil properties that determine the quality of a soil as well as one of the determinants of soil fertility, as well as contributing to plant growth and production, so it is necessary to determine the physical quality index of the soil. This study aims to determine the soil physical quality index (SPQI) in soybean plants based on the treatment given and to determine the relationship between soil physical quality index and soybean productivity. This research location was at the Pacet Experimental Garden, Cianjur Regency, West Java Province. The physical properties of the soil used to determine the SPQI are texture, bulk density, porosity, drainage pores, available water, permeability, and aggregate stability. Each soil physics parameter uses a score in the range of 0 to 5. Determination of SPQI on land can show various qualities of soil physical properties which are represented by several soil physical properties. The soil physical quality index (SPQI) of each unit planted with soybeans, which ranged from 0.74-0.91 with categories slightly good (P10) as a control, good (P1-P7 and P9), and very good (P8). Soil physical quality index has a moderate positive linear relationship between SPQI and soybean productivity (R = 0.4223) which means that the higher the soil physical quality index, the higher the soybean productivity.Key word: soil physical properties, soil physical quality index, soybean plant
Perubahan Penggunaan Lahan dan Karakteristik Hidrologi DAS Citarum Hulu Muhammad Yahya Fadhil; Yayat Hidayat; Kukuh Murtilaksono; Dwi Putro Tejo Baskoro
Jurnal Ilmu Pertanian Indonesia Vol. 26 No. 2 (2021): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.26.2.213

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The Citarum watershed is one of the priority watersheds due to problems of critical land, flooding, erosion, and sedimentation which continue to increase every year. As the main catchment area that contributes to maintaining the availability of water resources, the upstream Citarum watershed continues to experience a reduction in forest and an increase in built-up land. A research aimed to analyze land use changes to the hydrological characteristics was carried out at the Watershed. The methods used include interpretation of SPOT image data, analysis of land use changes, and determining the values of KRA and KAT. The results of the analysis of land use change conditions in 2009-2018 saw a reduction in forest area (-5.5%), rice fields (-17.4%), and shrubs (-60.8%). Land use increased in built up land (39.7%), dry land agriculture (13%), plantations (6.4%), and open land (95.5%). The highest discharge occurred in 2010 at 606,3 m3/second and the lowest discharge in 2012 was 4,3 m3/second. The KRA and KAT values of the Upper Citarum watershed were moderate and very high. The multiple linear regression model of the relationship between land use changes that affect river flow fluctuations is Y = 2380.5 + 0.9 rainfall -206.5 forest + 6.1 build-up area -31.8 dryland agriculture + e. Other factors that influence the increase in river discharge are the slope of land slopes, rainfall patterns, and inadequate land use methods. Keywords: hydrological characteristics, landuse change, Upper Citarum watershed
Peranan Pergerakan Air Dalam-Tanah dalam Menurunkan Aliran Permukaan Enni Dwi Wahjunie; Dwi Putro Tejo Baskoro; Suria Darma Tarigan
Jurnal Ilmu Pertanian Indonesia Vol. 26 No. 2 (2021): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.26.2.292

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The main cause of flooding and erosion that creates critical land in various regions in Indonesia is surface runoff. The surface runoff will occur if rainfall exceeds the capacity of soil water absorption (infiltration capacity). The soil management of each land use could improve the infiltration capacity. The water movement both on the surface and in the soil determines the water infiltration. This study predicts surface runoff based on the infiltration rate of various land uses and rainfall in the Ciliwung Watershed. A series of studies were performed in the upstream and middle areas of the watershed. Observations of soil properties, water movement, and rainfall were carried out in various dry land uses. The results showed that the soil's physical properties mostly determine the constant infiltration rate, which affected the water movement in the soil. The initial water content, the degree of saturation of the initial moisture content, and the soil's physical properties determine the time of constant infiltration rate. The value of constant rate infiltration and the time of its achievement determine the amount of surface runoff that occurs. Keywords: hydraulic conductivity, run off, soil management, time achievement of infiltration capacity
Pendugaan Erosi Tanah dan Perencanaan Tutupan Lahan Hulu DAS Jeneberang, Sulawesi Selatan Balqis Nur Aisyah; Dwi Putro Tejo Baskoro; Kukuh Murtilaksono
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 2 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.2.302

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Soil erosion is the main cause of land degradation. Jeneberang watershed is one of the priority watersheds in Indonesia. It has a big problem related to erosion in the upstream area. Jeneberang watershed is important area, its function is as water catchment for Bili-bili reservoir. It is served for flood control, irrigation water sources, water and hydroelectric energy supply. The aims of this study were to analyze the soil erosion prediction based on existing condition; develop an ideal land cover scenario to decrease soil erosion; and suggest land cover planning recommendations based on tolerable soil loss indicators in the upstream of Jeneberang watershed. This study was conducted using map overlay method to determine the value of the erosion factor. Erosion was predicted based on Universal Soil Loss Equation (USLE). Land scenarios and simulations was calculated by estimating the erosion in forest area and spatial planning land cover. The result showed that soil erosion of existing condition was approximately 813.1 tons/ha/year. The tolerable soil loss was only 22.9 tons/ha/year. The landuse scenario that chooses the lowest presumed erosion result is the implementation of spatial planning of Gowa district 2012-2032 with soil conservation technique applied. It can reduce erosion and sediment as 96.6% in upstream Jeneberang watershed. Keywords: erosion, Jeneberang watershed, scenario, landuse
Penetapan Alokasi Sawah Penerima Air Irigasi Berdasarkan Kondisi Hidroklimatologi di Daerah Irigasi Cihea Nur Etika Karyati; Latief Mahir Rachman; Dwi Putro Tejo Baskoro
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 2 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.2.216

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One of the main supporting factors for the agricultural sector in the Cihea Irrigation Area is the availability of sufficient water resources. However, uncertain climatic conditions due to climate change lead the changes in the rain distribution and affect the availability of water resources. The study aims to (1) assess the land water balance and drought index in Cihea Irrigation Area and (2) develop alternatives related to irrigation priority locations based on hydro climatological conditions. The water balance was analyzed using the Thornthwaite-Mather method (1957), while the irrigation priority locations were determined using the composite performance index method. Based on the annual water balance analysis, this irrigation area had a 568 mm/year water surplus. However, there was a water shortage from July to October, at 132 mm per month. From ten land systems,the highest deficit was in SL_9, while the lowest was in SL_1. These conditions triggered drought in some locations. The highest drought index occurred in August (56,89%), while the lowest occurred in July (3.98%). Based on hidroclimatological ,the prioritised locations for escalated productivity are paddy fields in CDK.16 Ka, CDK.17 Ki, PD.1 Ka, PD.1 Ki, PD.2 Ka, PD.2 Ki, CRJ.6 Ki, CRJ.7 Ki, CRJ.8 Ki, CRJ.9 Ki, CRJ.10 Ki, and CKR.1 Ki in the Ciranjang subdistrict. Meanwhile, to gain the equal irrigation distribution, the priority locations consist of paddy fields in CSK.1 Ki to CSK.5 ki, CSK.6 Ki, CSK.6 Ka, CSK.7 Ki to CSK.9 Ki, CSK.10 Ki, and CSK.10 Ka, situated in Bocongpicung District. Keywords: drought index, irrigation priority, water balance
Soil Moisture Characteristics on Several Soil Types Dwi Putro Tejo Baskoro; Suria Darma Tarigan
Jurnal Ilmu Tanah dan Lingkungan Vol 9 No 2 (2007): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (334.671 KB) | DOI: 10.29244/jitl.9.2.77-81

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Soil water availability is one of the important factors injluencing plant growth. Soil that can store more water in alonger time can support a better plant growth. This study was aimed to evaluate the dynamics of soil water of four differentsoils with different characteristics. Four soils classes are clayey textured soils-Red Yellowish Podsolik Jasinga, Clayeytextured soils-Latosol Darmaga, . Sandy Textured soil-Regosol Sindang Barang, and highly organic mater content soi/sAndosolSukamantri. The result showed that at every-suction analyzed, Andosol Sukamantri had consistently highest watercontent while Regosol Sindang Barang was consistently lowest. Similar tendency wasfoundfor available water capacity. Theresult also showed that moisture content at Regosol decrease more rapidly than those of the other three soils. The time need to reach likely constant moisture content is variable with soil type; lowest at Regosol Sindangbarang (45 hours after completely saturated and drained) followed by Podsolik Jasinga (73 hours), Latosol darmaga (74 hours) and Andosol Sulcamatri (76 hours).
Application of Fuzzy Sets Function for Land Attributes Mapping Dwi Putro Tejo Baskoro
Jurnal Ilmu Tanah dan Lingkungan Vol 10 No 1 (2008): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (480.976 KB) | DOI: 10.29244/jitl.10.1.20-26

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A study was conducted to evaluate the potential use of Geographical Information System (GIS) for mapping thebiophysical resources of watershed PC-based GIS soft-wares were used in the analysis, processing and mapping of spatialdata. The conventional mapping technique that presents land attribute in form of polygon with abrupt change across classboundaries was improved using Fuzzy technique. This technique involves the generation of membership maps for each soiltype based on the relationship between the soil type and it's forming factors like geology, elevation, slope gradient, slopeaspect, slope curvature, and land cover. The fuzzy technique was found to be more appropriate than the conventionaltechnique of mapping in expressing continuous and gradually changing soil or land attributes. Validation with observed soilor land attributes values indicated that root mean square error (RMSE) obtained for Fuzzy method was lower than that fromthe conventional method
PRIORITAS PERLINDUNGAN LAHAN SAWAH PADA KAWASAN STRATEGIS PERKOTAAN DI KABUPATEN GARUT Zluyan Firdaus Afif; Baba Barus; Dwi Putro Tejo Baskoro
Jurnal Ilmu Tanah dan Lingkungan Vol 16 No 2 (2014): Jurnal Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (710.213 KB) | DOI: 10.29244/jitl.16.2.67-74

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Perlindungan lahan sawah di Kabupaten Garut perlu dilakukan sejak dini, hal ini dimaksudkan untuk menjaga keberadaan lahan sawah serta jati diri Kabupaten Garut sebagai lumbung padi Provinsi Jawa Barat. Upaya ini dilakukan untuk mendukung ketahanan pangan nasional ditengah maraknya isu konversi lahan pertanian. Terutama pada Kawasan Strategis Perkotaan yang pada dasarnya merupakan pusat perekonomian di Kabupaten Garut. Hasil kajian ini diharapkan diperoleh gambaran kondisi aktual lahan sawah di Kawasan Strategis Perkotaan Kabupaten Garut. Penghitungan neraca lahan dilakukan dengan membandingkan kebutuhan dan ketersediaan lahan pada Kawasan Strategis Perkotaan di Kabupaten Garut. Penentuan lahan prioritas dilakukan atas parameter: 1) kelas kesesuaian lahan; 2) intensitas pertanaman (IP); 3) sistem Irigasi; 4) luas hamparan; dan 5) jarak dari bahu jalan. Selanjutnya dilakukan pengelompokan berdasarkan kriteria fisik yang homogen, sehingga diperoleh empat karakteristik tipologi perlindungan lahan sawah di Kawasan Strategis Perkotaan. Sebaran lahan prioritas pertama kemudian di bandingkan dengan pola ruang dalam RTRW Kabupaten Garut tahun 2011-2013, sehingga diperoleh luas lahan prioritas pertama yang sesuai dengan Rencana Tata Ruang Wilayah Kawasan Strategis Perkotaan adalah sebesar 2,079 ha atau setara dengan 25.67% dari luas wilayah. Artinya, jika lahan sawah prioritas pertama ini digunakan sebagai sumber untuk Ruang Terbuka Hijau (RTH) dengan standar minimal 30%, pemerintah hanya tinggal mengakumulasi kekurangan sebesar 4.33%.
Co-Authors A Akbar Aditia Sapto Utomo Affan Chahyahusna Agis Mulyani Alim, Nurmaranti Andrea Emma Pravitasari, Andrea Emma Andria Harfani Qalbi Ansori Ansori Asti Nurmilah Astrid Aryani Ndun Asyhari, Adibtya Baba Barus Balqis Nur Aisyah Basuki Sumawinata Benadikta Widjayatnika Boedi Tjahjono Budi Mulyanto Carolyn, Rully Dhora Darmawan Darmawan Desy Fatmawati Diyah Novita Kurnianti Dyah Retno Panuju Elianah Elvina Nora Lubis Enni Dwi Wahjunie Enny Dwi Wahyunie Ernan Rustiadi Evi Nursari Evi Nursari Fajar Nugraha Fatmawaty Fatmawaty, Fatmawaty Fatoni, Arif Fayra Parahita Fulki Dwiyandi Araswati Gangga, Adi Gilang Munggaran Harisman Edi Hendi Hendra Bayu Henry D. Manurung Iman Sadesmesli Irvan Zidni Iskandar Iskandar Jepri, Kristoporus Jon Hendri JUBAEDAH JUBAEDAH, JUBAEDAH Khursatul Munibah Komarsa Gandasasmita Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Murtilaksono Latief M Rahman Latief Mahir Rachman Latief Mahir Rachman Leonard Kristofery LILIK BUDIPRASETYO M. Galih Permadi Mahardika, Rabbirl Yarham Mahartika Setianingsih Malahayati, Sri Marisa Dwi Putri Maswar Maswar Maudy Susanti Mohammad Sofyan Muhammad Yahya Fadhil Nabila Nurhaliza Navisha Maulita Dewi Neneng Laela Nurida Nur Etika Karyati Nuraida Nuraida Nurmaranti Alim Nursari, Evi Omo Rusdiana Oteng Haridjaja Purwakusuma, Wahyu Putri, Savitri Khairunnisa Rahmah Dewi Yustika, Rahmah Dewi Rahman, Latief M Ramadhi, Muhammad Haris Achyar Ratna Yestina Ravelle, Adzan Pandu Reni Kusumo Tejo Selamet Kusdaryanto Seniarwan Seniarwan Siregar, Mariana Sella Suria Darma Tarigan Surya Darma Tarigan Syaiful Anwar Tiwi Astriani Toga Pandapotan Sinurat Vinni Lovita Widiatmaka Wistha Nowar Yayat Hidayat Yusuf, Sri Malahayati Zluyan Firdaus Afif