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Karakteristik Beberapa Sifat Tanah pada Berbagai Posisi Lereng dan Penggunaan Lahan di DAS Ciliwung Hulu: Characteristics of Several Soil Properties in Various Slope Position and Land Use in Upper Ciliwung Watershed Marisa Dwi Putri; Dwi Putro Tejo Baskoro; Suria Darma Tarigan; Enni Dwi Wahjunie
Jurnal Ilmu Tanah dan Lingkungan Vol 19 No 2 (2017): 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 (304.447 KB) | DOI: 10.29244/jitl.19.2.81-85

Abstract

Bentuk lahan dikenal sebagai unit tanah dengan fase atau takson tertentu tergantung pada sistem pemetaan. Tujuan dari penelitian ini adalah untuk mengkarakterisasi perbedaan beberapa sifat tanah sepanjang bentuk lahan. Dihipotesiskan bahwa posisi tanah dalam bentuklahan menunjukkan sifat yang berbeda. Data dianalisis secara kuantitatif dengan teknik deskriptif termasuk variasi rata-rata, standar deviasi dan koefisien varian dilanjutkan dengan analisis varian menggunakan Least Significance Different (LSD). Hasil penelitian menunjukkan bahwa sifat-sifat tanah, khususnya permeabilitas tanah memiliki perbedaan yang signifikan sesuai dengan posisi urutan kemiringannya dalam bentuk lahan tertentu. Kata kunci: Bentuk lahan, penggunaan lahan, permeabilitas, posisi lereng, bobot isi tanah
Effect ofMeasurement Method and Wet Sieving Time on Index of Soil Aggregate Stability Dwi Putro Tejo Baskoro; Henry D. Manurung
Jurnal Ilmu Tanah dan Lingkungan Vol 7 No 2 (2005): 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 (1521.564 KB) | DOI: 10.29244/jitl.7.2.54-57

Abstract

Aggregate stability is one of the important factors to be taken into account in controlling soil degradation. It influences soil ability to resist soil erosion. Therefore, it is necessary to have accurate measurement of aggregate stability that able to express well its resistance to dispersion. In this study, aggregate stability of various soil types were measured using different wet sieving time and aggregate size. Latosol Sindangbarang showed the highest aggregate stability index (ASI), followed by Podsolik Jasinga, Andosol Sukamantri, Lalosol Darmaga, and Regosol Sindangbarang Wei sieving time significantly affected AS!. The ASI decreased as wet sieving time increased The result also showed that different methods result in significantly different stability index. The method that used smaller size aggregates (< 2.83 mm) results in about 3 to 4 times higher stability index.
Karakteristik Hidrologi Tanah di Bawah Tegakan Pinus (Pinus merkusii), Merawan (Hopea odorata Roxb) dan Mahoni Uganda (Khaya anthoteca): Soil Hydrological Characteristics Under Pine (Pinus merkusii), Merawan (Hopea odorata Roxb), and African Mahogany (Khaya anthoteca) Stands Andria Harfani Qalbi; Suria Darma Tarigan; Enni Dwi Wahjunie; Dwi Putro Tejo Baskoro
Jurnal Ilmu Tanah dan Lingkungan Vol 20 No 1 (2018): 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 (321.339 KB) | DOI: 10.29244/jitl.20.1.7-12

Abstract

Forest destruction may affect forest hydrological functions either as a water regulator, maintaining the timing and distribution of river water flows, maintaining microclimate, or being able to protect the underlying areas from disasters such as floods. Revegetation is considered as an effort to improve the condition of forest and environment. The objective of this study was to examine the hydrological characteristics of soil under stands of Pinus (Pinus merkusii), Ugandan Mahogany (Khaya anthoteca), and Merawan (Hopea odorata Roxb). The method used is periodic measurement of soil physical variables. Our investigation reveals that hydrological and physical properties of soil under the stands were different. Within the same depth of soil, water content changed from the highest to the lowest in Pine (3.05%), Merawan Siput Jantan (2.40%), and African Mahogany (1.89%), respectively. The highest infiltration was 116.25 cm hour-1 under Pine stand, while the lowest was 24 cm hour-1 under Merawan Siput Jantan stand. The highest permeability was 13.27 cm hour-1 under Pine stand, while the lowest was 2.72 cm hour-1 under Merawan Siput Jantan stand. Dominated by clay, the soil texture was relatively similar in each stand. Further, the soil under the three stands were categorized as the soil hydrological group B.
Alternatif Teknik Konservasi Tanah dan Air untuk DAS Cilemer, Banten: Alternative of Soil and Water Conservation Techniques in Cilemer Watershed, Banten Evi Nursari; Latief Mahir Rachman; Dwi Putro Tejo Baskoro
Jurnal Ilmu Tanah dan Lingkungan Vol 20 No 1 (2018): 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 (321.815 KB) | DOI: 10.29244/jitl.20.1.33-39

Abstract

Banjir dan kekeringan merupakan persoalan rutin yang terjadi di Daerah Aliran Sungai (DAS) Cilemer karena kualitasnya menurun. Penerapan Konservasi Tanah dan Air (KTA) merupakan salah satu upaya untuk meningkatkan kualitas DAS Cilemer. Studi ini bertujuan untuk mensimulasikan beberapa teknik KTA, mendapatkan alternatif teknologi KTA, dan menyusun arahan pengelolaan DAS yang baik. Penelitian dilaksanakan kedalam beberapa tahap yaitu: (i) pengumpulan data sekunder, (ii) survei lapang (pengumpulan data primer), (iii) analisis data, (iv) running model SWAT, (v) simulasi KTA dengan model SWAT, (vi) skenario pengelolaan DAS, serta (vii) penyusunan arahan pengelolaan DAS. Hasil penelitian menunjukkan bahwa penerapan KTA dapat memperbaiki kualitas DAS yang ditandai dengan menurunnya rasio Qmax/Qmin dan aliran permukaan langsung serta meningkatnya aliran dasar dan water yield. Strip cropping, agroforestry dan embung dapat dijadikan alternatif teknologi KTA yang dapat diimplementasikan secara simultan di DAS Cilemer pada sub agroekosistem dimana teknologi tersebut sesuai untuk diterapkan. Embung adalah skenario pengelolaan DAS terbaik, yang mampu menurunkan aliran permukaan langsung sebesar 29.24%, koefisien aliran tahunan menurun dari 0.25 menjadi 0.17, meningkatkan aliran dasar sebesar 46.00% dan hasil air sebesar 3.99%.
Identifikasi Daerah Risiko Bencana Longsor di Kota Bogor: Identification of Landslide Risk in the City of Bogor M. Galih Permadi; Boedi Tjahjono; Dwi Putro Tejo Baskoro
Jurnal Ilmu Tanah dan Lingkungan Vol 20 No 2 (2018): 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 (572.181 KB) | DOI: 10.29244/jitl.20.2.86-94

Abstract

Landslide is one of the disasters that often hit Indonesia. Data collected from BPBD Office of Bogor City also shows that landslide events ranked first out of 6 types of disasters in Bogor City; in 2017 there were 179 landslides (40.5%) of the 442 recorded disaster events. To support development programs in the city, landslide risk research is needed. This study aimed to assess and map the risk of landslides in Bogor City and formulate mitigation recommendations. The method used is the Multi Criteria Evaluation where the weights and scores of each parameter are obtained from the Analytical Hierarchy Process (AHP). The results obtained show that the highest level of susceptibility and landslide hazard is in the South Bogor District, this is in accordance with the landform conditions in the region, where 60.5% of the area has landforms with steep slopes i.e. denudational volcanic cones, river banks, and valleys with alluvial terrace. However, for the highest risk, the extent area is located in North Bogor District. This is due to the dominance of residential and high population, so the vulnerability factor is an indicator of rising risk values. For Bogor City which is dominant with residential, recommended mitigation include 3 types of engineering, namely civil, vegetative, and social for medium and high risk classes. Bogor Selatan sub-district in this case is the district with the most extensive area to implement mitigation measures.
Analisis Kinerja DAS Pedindang Pasca Tambang Timah Kabupaten Bangka Tengah Provinsi Bangka Belitung: Analysis of Pedindang Bassin Performance Post Tin Minning in Central Bangka Regency, Bangka Belitung Province Hendi Hendra Bayu; Dwi Putro Tejo Baskoro; Latief Mahir Rachman
Jurnal Ilmu Tanah dan Lingkungan Vol 21 No 2 (2019): 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 (738.438 KB) | DOI: 10.29244/jitl.21.2.72-77

Abstract

Aktifitas kegitan manusia di dalam DAS Pedindang secara langsung mempengaruhi keadaan fisik lahan, kualitas air, dan kinerja DAS Pedindang. Aktifitas kegiatan penambangan merupakan salah satu faktor yang mengakibatkan kerusakan tanah, menurunnya kualitas air dan meningkatnya aliran permukaan. Tujuan penelitian ini adalah: i) menganalisis kualitas air di DAS Pedindang pada daerah hulu dan daerah lain yang mengalami pencemaran; ii) menganalisis tingkat kerusakan tanah yang berada di DAS Pedindang pasca penambangan timah; iii) mengevaluasi kinerja DAS Pedindang dengan pendekatan Koefisien Regim Aliran (KRA) dan Koefisien Aliran Tahunan (KAT). Penelitian ini menggunakan metode analisis tumpangtindih GIS serta penilaian ambang batas kerusakan tanah, penilaian ambang batas kualitas air dan kinerja DAS dengan penilaian KRA dan KAT. Hasil evaluasi DAS Pedindang menunjukkan bahwa kondisi kualitas air dalam DAS pedindang mengalami penurunan di wilayah hilir akibat aktifitas tambang, sehingga perlu adanya penanganan tanah tambang.
Perencanaan Pertanian Konservasi pada Pengelolaan Lahan Tradisional di Kecamatan Amarasi Barat, Nusa Tenggara Timur: Agricultural Conservation Planning on Traditional Land Management in Amarasi Barat District, East Nusa Tenggara. Astrid Aryani Ndun; Kukuh Murtilaksono; Dwi Putro Tejo Baskoro; Yayat Hidayat
Jurnal Ilmu Tanah dan Lingkungan Vol 23 No 1 (2021): 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 | DOI: 10.29244/jitl.23.1.7-17

Abstract

Traditional land management system for agricultural activities is carried out throughout the year. It will trigger soil degradation, if it is not accompanied by adequate soil conservation practices. This research aimed to analyze the environmental friendliness of traditional land management systems based on erosion predictions and analyze, plan, and determine appropriate land use planning or conservation measures to increase their environmental friendliness.This research was conducted at three locations representing three traditional land management systems i.emamar system at Teunbaun, slash and burn system at Niukbaun and silvopasture at Merbaun, Amarasi Barat, Kupang, East Nusa Tenggara. This research was conducted in several stages, such as: secondary data collection, observation or primary data collection in the field, laboratory analysis, calculation of erosion factors, prediction of erosion according to the USLE method and recommendations for soil and water conservation measures. The results showed that the slash and burn system had the highest predictive value of erosion (A), namely 2,368.7 ton ha-1 year-1, followed by thewanaternak and mamar system 599.9 to 1,534.5 ton ha-1 year-1. The erosion value (A) can be minimized with conservation measures. Hence the erosion is less than tolerable soil loss (TSL). The recommended conservation action is construction gulud terraces. Crop management that can be done is to increase the density of plant canopy through high agroforesty, crop rotation, and mulching.
ANALISIS KEMAMPUAN LAHAN KPHP UNIT VII HULU SAROLANGUN DAN ARAHAN PENGGUNAANNYA Ansori Ansori; Dwi Putro Tejo Baskoro; Omo Rusdiana
Jurnal Analisis Kebijakan Kehutanan Vol 17, No 1 (2020): Jurnal Analisis Kebijakan Kehutanan
Publisher : Centre for Research and Development on Social, Economy, Policy and Climate Change

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2572.204 KB) | DOI: 10.20886/jakk.2020.17.1.1-16

Abstract

Increasing land demand has resulted land conversion, one of which is forest land conversion. The objectives of this research are to identify: the conversion patterns of forest land use, the classification of land capability, the spatial direction of agroforestry programsand the land conversion in 2025. This research implements map overlay, land capability analysis, and CA-Markov method. The results show that the pattern the conversion in 1990-2015is dynamic, the biggest change was from 1996 to 2003 covering the area of   24,487 hectares. There are five classesof Land capability: classes II, III, IV, VI, and VII with erosion as the biggest limiting factor (e4) dominant inclasses IV and VI. Management suggestions consist of   11,361 hectares of agroforestry patterns, 11,228 hectaresof reforestation,   3,013 hectares of Tanah Obyek Reformasi Agraria,   102,928 hectares of other management inaccordance with Rencana Karya Usaha Pemanfaatan Hasil Hutan Kayu and Rencana Pengelolaan Hutan JangkaPanjang. Prediction of land use change in 2025 with bussiness as ussual scenario shows 3.6% reduction of HutanSekunder with RPHJP implementation scenario, 0.5% HS is reduced; with the strategy of agroforestry scenarioshows 105.3% HS increase.
Land Use Projection for Spatial Plan Consistency in Jabodetabek Diyah Novita Kurnianti; Ernan Rustiadi; Dwi Putro Tejo Baskoro
Indonesian Journal of Geography Vol 47, No 2 (2015): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.18 KB) | DOI: 10.22146/ijg.9249

Abstract

Land use changes in Greater Jakarta area are very dynamic because of the need for settlements and converting agricultural land. It indicates land use inconsistency regard to spatial plan that can cause land damage in the future. Land use which has potential inconsistency in the future are requires for land use control in this region. This study uses spatial analysis to look at the potential inconsistencies by comparing land use projection in the future in two scenarios that is with and without control by policies. Policies in this study are land suitability and forest allocation. The result shows that land use consistency with policies raise until 97,4 % but only 93.9 % without control by policies. Areas that could potentially have inconsistency in the future are Bogor, Bekasi, Tangerang and Jakarta North City for area which is directed as forest and buffer zones of cultivation.
Pengembangan Komoditas Unggulan Tanaman Pangan di Kabupaten Bone A Akbar; Baba Barus; Dwi Putro Tejo Baskoro
TATALOKA Vol 16, No 2 (2014): Volume 16 Number 2, May 2014
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/tataloka.16.2.94-107

Abstract

Crop farming sector is an important sector in Bone, but it’s productivity is still fluctuating. Currently commodities occur in the area, that may contribute to agriculture development, and they may distribute in unappropriate physical suitability and lack support of infrastructure. This study aims to (1) Identify the superior crop commodities in Bone, (2) Identify availability of  agricultural infrastructure and facilities, (3) Evaluate land suitability for food crops in Bone, (4) Develop guidelines for location and strategies for development of superior commodity crops  in Bone. The analytical method used is the LQ analysis, MCDM-TOPSIS, schallogram, land suitability, and A'WOT. Results showed that paddy, corn and soybeans are superior commodities. Suitable land for development are  20,7% for rice, 16,0% for corn and  0,9% for soybean. Location for development commodity is directed in district Libureng, Awangpone, Tellusiattinge, Ponre, Kahu, Lamuru, Cina, Salomekko, Ajangale, Tonra, Bontocani, Cenrana, Kajuara, Amali, Mare, Tellulimpoe dan Patimpeng.  Strategies development, namely: (a) Optimizing and utilizing the potential of the area/natural resources, human resources and government policies for the development of food crops selected; (b) Increasing partnerships between stakeholders; (c) Enhancing the ability of research institutions to develop new technologies, and (d) Utilizing a strategic position region business import export trade of agricultural products.
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