Articles

FAKTOR-FAKTOR YANG MEMPENGARUHI STATUS GIZI ANAK BALITA DI KABUPATEN TIMOR TENGAH UTARA, PROVINSI NUSA TENGGARA TIMUR Riyadi, Hadi; Martianto, Drajat; Hastuti, Dwi; Damayanthi, Evy; Murtilaksono, Kukuh
Jurnal Gizi dan Pangan Vol. 6 No. 1 (2011)
Publisher : Food and Nutrition Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (244.203 KB) | DOI: 10.25182/jgp.2011.6.1.66-73

Abstract

This research aims to analyze underlying factors affecting child malnutrition at Timor Tengah Utara district, NTT. The design was a cross-sectional study. Sample of this study was household that have underfive years old children residing in the areas of Plan International. Data was collected by using structured questionnaire, focus group discussion and in-depth interview. Nutritional status was measured using anthropometric measurement with weight and height indicators and child consumption was recorded using 24 hours food’s recall. Result showed that in three villages prevalence of malnourished children was high, which were 6.0% classified as severe underweight, 15.3% severe stunting and 0.7% severe wasting. There was no significant difference in term of nutritional status. Child malnutrition was influenced by low access to nutrition and health information, low nutrition knowledge and practices, and low family income.
HUBUNGAN KETERSEDIAAN AIR TANAH DAN SIFAT-SIFAT DASAR FISIKA TANAH Murtilaksono, Kukuh; Wahyuni, Enny Dwi
Jurnal Ilmu Tanah dan Lingkungan Vol 6 No 2 (2004): 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 (577.924 KB) | DOI: 10.29244/jitl.6.2.46-50

Abstract

This research was conducted to study the relationship between soil moisture content and soil physical characteristics that affected the moisture.The soil samples were collected from 22 scattered sites of West Java and Central Java. Analysis of soil physical properties (texture, bulk density, particle density, total porosity and soil moisture retention) and soil chemical property (organic matter) was conducted at the laboratory of the Department of Soil Sciences, Faculty of Agriculture, Bogor Agricultural University. Analysis of simple linear regression was applied to know the correlation between soil moisture content and other basic soil physical properties.Availability of soil moisture (pF 4.20 – pF 2.54) significantly correlated with organic matter, total porosity, and micropores. The higher organic matter content, as well as total porosity and micro, pores the higher available soil moisture. Soil moisture of field capacity significantly correlated with clay content, sand content, micro and macropores. The higher clay content and micropores the higher soil moisture of field capacity. In the contrary, the higher macropores and sand content the lower the field capacity. Soil moisture of the wilting point significantly correlated with clay content and macropores. The higher clay content the higher the wilting point, while the higher macro pores the lower soil moisture of wilting point. Keywords: Available soil water, field capacity, organic matter, soil pores, wilting point
IDENTIFIKASI DAN ANALISIS KARAKTERISTIK LONGSOR DI KABUPATEN GARUT Bakri, Subhan; Murtilaksono, Kukuh; Barus, Baba
JURNAL TEKNIK SIPIL Vol 8, No 2 (2019): Volume 8, Nomor 2, November 2019
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1040.456 KB) | DOI: 10.24815/jts.v8i2.14117

Abstract

Based on the data of earthquake disaster events in Indonesia for the last 12 years then West Java Province was most often experienced landslide disaster. Land movement map of Garut Regency issued by Directorate of Volcanology and Geological Hazard Mitigation (DVMG), indicated Garut included in the category of vulnerability zone of high ground movement, among others: District Banjarwangi, Singajaya and Peundeuy. This study aimed to identify and analyzed the characteristics of landslides in Garut regency, especially in three districts. The first phase of this study conducted a literature study on various factors causing landslides, followed by making a list of fields as a guide in the field. The identification of landslides was done descriptively. Various factors suspected to be the cause of the landslide were identified and analyzed. Based on the results of observation for 14 months at 32 landslide point that occurred in the research area, there were 2 landslide characteristics encountered, namely 1. Soil scrolling (30 cases or 94%) and 2. Decreased / subsidence (2 cases or 6%). The highest landslide was found on paddy fields as much as 25 dots, followed by mixed gardens (talun) as much as four points, in the settlement / infrastructure found two points and one season plantation garden. 
UPAYA PENINGKATAN PRODUKSI KELAPA SAWIT MELALUI PENERAPAN TEKNIK KONSERVASI TANAH DAN AIR Murtilaksono, Kukuh; Darmosarkoro, Witjaksana; Sutarta, Edy Sigit; Siregar, Hasril Hasan; Hidayat, Yayat
Journal of Tropical Soils Vol 14, No 2: May 2009
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2009.v14i2.%p

Abstract

Effort to Increase Oil Palm Production through Application Technique of Soil and Water Conservation (K. Murtilaksono, W. Darmosarkoro, E.S. Sutarta, H. H. Siregar, and Y. Hidayat): The study was carried out at block 375, 415, and 414 (block 1, 2, and 3) Afdeling III, Mangement Unit of Rejosari, PT Perkebunan Nusantara VII, Lampung from June 2005 until December 2007.  Objective of the study is to examine the effect of soil and water conservation measurement, namely bund terrace and silt pit that are combined with retarded-water hole on production of oil palm. Sampled trees of each block were randomly selected as much as 36 trees.  Parameters of vegetative growth (additional new frond, total of frond, number of new bunch), production (number of bunch, fresh fruit bunch (TBS)), and average of bunch weigh (RBT) were observed and recorded every two weeks.  Production of palm oil of each block was also recorded every harvesting schedule of Afdeling.  Tabular data were analyzed descriptively by logical comparison among the blocks as result of application of bund terrace and silt pit.  Although the data of sampled trees were erratic, bund terrace and silt pit generally increasing number of frond, number of bunch, average of bunch weight, and fresh fruit bunch.  Bund terrace gived the highest production of TBS (25.2 t ha-1) compared to silt pit application (23.6 t ha-1), and it has better effect on TBS than block control (20.8 t ha-1).  Aside from that, RBT is the highest (21 kg) at bund terrace block compared to silt pit block (20 kg) and control block (19 kg).
Characterization of Surface Runoff, Soil Erosion and Nutrient Loss on Forest-Agriculture Landscape Hidayat, Yayat; Murtilaksono, Kukuh; Sinukaban, Naik
JOURNAL OF TROPICAL SOILS Vol 17, No 3: September 2012
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2012.v17i3.259-266

Abstract

The study was aimed to quantify volume of surface runoff, soil erosion and nutrient loss from the forest-agriculture landscape (forest margins) in Lore Lindu National Park Central Sulawesi.  Surface runoff volume and soil erosion were measured daily on erosion plots. It was installed on  several land use types i.e. forest land,  maize,  young cocoa, medium cocoa, old cocoa, vanilla, shrub and bush and bareland, on the soil Typic Dystrudepts with slope ± 40%. The nutrient content in surface runoff and sediments were analyzed from selected surface runoff and sediment samples.  Surface runoff and soil erosion from agriculture land were respectively 2.1 to 3.4 and  3.6 to 5.8 times higher than from forest lands. Meanwhile, surface runoff and soil erosion from bareland were respectively 7.0 and 23.7 times greater than forest land respectively.  Sediment nutrient contents from forest land were  higher than agriculture land.  In the contrary, total nutrient lost from agriculture land were higher than forest land ones.  Nutrient losses carried by surface runoff were larger than those losses carried by sediments.  Dissolved organic carbon (DOC) loss in surface runoff was 6,1 to 8,0 times higher than total organic carbon (TOC) loss in sediments.  Likewise, nitrate (NO3-) loss in surface runoff was 1.9 to 12.1 times higher than total nitrogen (TN) in sediments as well as potassium, calcium, magnesium and sodium losses.  Potassium is dominant cation loss carried by the surface runoff, while calcium is mainly carried by sediment.Keywords:  Dissolve organic carbon; forest-agriculture landscape; nutrient loss; soil erosion; surface runoff[How to Cite: Hidayat Y, K Murtilaksono and N Sinukaban. 2012. Characterization of Surface Runoff, Soil Erosion and Nutrient Loss on Forest-agriculture Landscape. J Trop Soils, 17 (3): 259-266. doi: 10.5400/jts.2012.17.3.259][Permalink/DOI: www.dx.doi.org/10.5400/jts.2012.17.3.259]
Reformulation of Crop and Management Factor in ANSWERS model Hidayat, Yayat; Sinukaban, Naik; Pawitan, Hidayat; Murtilaksono, Kukuh
JOURNAL OF TROPICAL SOILS Vol 13, No 2: May 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i2.155-160

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Crop and management factor value is significantly corelated with outputs of ANSWERS model especially on soil erosion.   Using daily crop and management factors (daily C factors), the ANSWERS model performs well in predicting soil erosion which is showed by determination coeffient (R2 = 0.89), model efficiency (0.86), and average of percentage model deviations (24.1 %).  Whereas using USLE C factor (2 cropping systems), predicted is much higher than measured soil erosion (over estimate).  Output of the model is not statisfy, it is represented by model coefficient (0.40) and average of percentage model deviations (63.6 %).
ANALISIS WAVELET DAN VARIABILITAS TEMPORAL HIDROKLIMATOLOGI DAERAH ALIRAN SUNGAI (STUDI KASUS SUB-DAS CISANGKUY KABUPATEN BANDUNG) Subarna, Dadang; Purwanto, M Yanuar J; Murtilaksono, Kukuh; Wiweka, Wiweka
Berkala Perikanan Terubuk Vol 40, No 2 (2012): Juli 2012
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1131.288 KB) | DOI: 10.31258/terubuk.40.2.20-33

Abstract

The research was conducted in the Sub Watershed Cisangkuy of theUpper Citarum Watershed in the Bandung regency. Cisangkuy river playsimportant role in the water supply to the population of Bandung regency andBandung city. In the last ten years, the debit of the river was decreased at dryseason but increased at rainy season that causes of flood in some places. It isneeded to research the variability of hydroclimatology at the region. The monthlyrainfall and debit in range of 2001-2011 was processed using the coefficient ofvariation (CV), wavelets and moving average analysis. The result of thecoefficient of variation and wavelets analysis show the monthly rainfall of fourweather stations: Cileunca, Kertamanah, Cipanas and Ciherang have the CV of78%, 82%, 84%, 70% respectively and show the dominant oscillation around 8-16months. The debit of two hydrology stations: Pataruman and Kamasan have theCV of 97%, 86% respectively and show the dominant oscillation around 128months and 64 months. The analysis of moving average with the simple,exponential, adaptive methods show the increase of five yearly debit significantlyin the range of observed data which cause of the flood in the Kamasan Banjaranregion. The 8-16 months oscillation is associated with the apparent position of theSun between the Tropics of Cancer and Capricorn which cause regional variationsin the intensity of monsoon and it’s called annual oscillation. The 128 monthsoscillation of debit is associated with the ten to twelve (TTO) years oscillation inthe tropical tropospheric temperature. While 64 months oscillation is associatedwith the the tropical Pacific phenomena El Niño (warm condition) and La Niña(cold conditions) are the cause of 2-7 years oscillations which famous with ENSOcycle.Keywords: Watershed, Rainfall, Debit, Variability, Hidroclimatology, Wavelets,Moving Average, Oscillation
FRACTIONATION OF IRON (FE) AND MANGANESE (MN) IN THE HORIZONS OF A FOREST SOILS, AGROFORESTRY, AND DRYLAND AGRICULTURE Parjono, Parjono; Anwar, Syaiful; Murtilaksono, Kukuh; Indriyati, Lilik
Journal of Environmental Science and Sustainable Development Vol. 2 No. 1 (2019)
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

One of the main problems with acidic soils is the availability of soil nutrients. In such soils, iron (Fe) and manganese (Mn) ions are highly present. This study evaluated the Fe and Mn fractions in the soil profiles of forests used for agroforestry and dryland agriculture in the upper Ciliwung watershed. The watershed is a zone of high rainfall washing. The evaluation was based on the results of analysis of soil samples taken at four soil horizons (Ao or Ap, A1 or A2, B1, and B2) for each type of land use. Research was conducted by survey and laboratory analysis. Fractionation of Fe and Mn employed sequential extraction methods with different compounds in each fraction. Fractionation was divided into exchangeable fractions (Exch), acid extractable (Acex), can be reduced (Red), oxidized (Oxs), and residual (Res). Results showed that Res Fe was (>23000.8 ppm or 76.3%) and Oxs Mn (>1642.9 ppm or 52.9%) dominated each type of land use, while the lowest fractions were Exch Fe (<12.2 ppm or 0.022%) and Exch Mn fraction (<97.2 ppm or 1.50%) in each type of land use.
PRAKIRAAN CURAH HUJAN DI WILAYAH SITU CILEUNCA KABUPATEN BANDUNG DENGAN METODE STATISTIK NON-LINEAR [RAINFALL PREDICTION OVER THE CILEUNCA LAKE AREA AT BANDUNG REGENCY WITH NON-LINEAR STATISTICAL METHOD] Subarna, Dadang; Purwanto, M. Yanuar J.; Murtilaksono, Kukuh; Wiweka-, -
Jurnal Sains Dirgantara Vol. 10 No. 1 Desember 2012
Publisher : Lembaga Penerbangan dan Antariksa Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (877.299 KB)

Abstract

Sebagai bagian dari Cekungan Bandung, Situ Cileunca memegang peranan penting dalam memasok sumber air baku untuk penduduk Kabupaten dan Kota Bandung. Curah hujan di area Situ Cileunca memperlihatkan bentuk fungsi distribusi probabilitas logaritmik normal yang tak simetris dengan kurtosis berharga negatif. Sesuai dengan karakteristik data maka metode analisis deret waktu linear dan non-linear yang sesuai telah diterapkan untuk mendapatkan nilai statistik deskriptif, probabilitas, pemodelan dan prakiraan ke depan berbasis data curah hujan bulanan dari tahun 1993 sampai 2011 di atas Situ Cileunca Kabupaten Bandung. Data curah hujan bulanan terdiri dari 230 data dengan koefisien variabilitas sebesar 78%, sedangkan untuk pemodelan digunakan 200 data dalam rangka memperoleh parameter non-linear optimal. Langkah pertama, dicari waktu tunda dari keseluruhan data yang diterapkan dengan menggunakan metode autokorelasi dan informasi mutual yang menghasilkan waktu tunda 2, lalu dicari dimensi embedding secara iterasi. Diperoleh dimensi embedding 23 dengan koefisien korelasi 0,6 yang merupakan nilai paling besar dari 30 dimensi embedding yang dicoba. Dimensi embedding 23 merupakan batas atas dari jumlah variabel bebas yang cukup untuk pemodelan dinamika curah hujan.Kata kunci: Curah hujan, Non-linear, Statistik, Situ Cileunca Waktu tunda, Dimensi embedding
KARAKTERISTIK HANTARAN HIDROLIK JENUH TANAH PADA PERKEBUNAN KELAPA SAWIT, PTPN VII LAMPUNG SELATAN Syahadat, Pungkas; Tarigan, Suria Darma; Murtilaksono, Kukuh
Jurnal Ilmu Tanah dan Lingkungan Vol 13 No 2 (2011): 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 (168.536 KB) | DOI: 10.29244/jitl.13.2.58-62

Abstract

Kelapa sawit (Elais guineensis Jacq.) merupakan salah satu tanaman yang memerlukan air dalam jumlah yang banyak. Ketersediaan air merupakan salah satu faktor pembatas utama bagi produksi kelapa sawit. Pada musim kemarau kelapa sawit akan mengandalkan cadangan air bawah tanah untuk kebutuhan airnya. Hantaran hidrolik merupakan parameter sifat fisik tanah yang berperan dalam penambahan air bawah tanah. Tujuan dilakukannya penelitian ini adalah mengetahui karakteristik hantaran hidrolik jenuh pada berbagai jenis lokasi yang meliputi gawangan mati, piringan, dan jalan pikul pada perkebunan kelapa sawit PTPN VII Lampung. Karakteristik ini dapat dijadikan acuan pengelolaan lahan agar dapat meningkatkan cadangan air bawah tanah. Nilai hantaran hidrolik jenuh pada lokasi gawangan mati berkisar antara 2.9-30.4 cm jam-1 dengan kelas sedang sampai sangat cepat, pada lokasi piringan berkisar antara 2.5-13.4 cm jam-1 dengan kelas agak lambat sampai cepat, dan pada lokasi berupa jalan pikul nilai hantaran hidrolik jenuhnya berkisar antara 1.6-12.8 cm jam-1 yang berada pada kelas agak lambat sampai cepat. Tingginya hantaran hidrolik pada gawangan mati disebabkan terjaganya struktur tanah oleh tumpukan pelepah yang sudah mati. Hasil penelitian menunjukan bahwa aktifitas pemanenan yang intensif menurunkan nilai hantaran hidrolik jenuh tanah pada areal piringan dan jalan pikul tempat mengangkut hasil panen disebabkan peningkatan kepadatan tanah.
Co-Authors . SUDARSONO Andi Nuddin Anthon Monde Apriyeni, Baiq Ahda Razula Arief Hartono Arifin, Syaiful Arifudin arifudin Astuti, R.K. Baba Barus Bakri, Subhan Bambang Pramudya Boedi Tjahjono, Boedi Bramasto Nugroho Bunasor Sanim CECEP KUSMANA Dadang Subarna Dessy Arianti, Dessy Diah Retno Panuju Didiek Hadjar Goenadi Djuara P. Lubis Drajat Martianto Dwi Andreas Santosa Dwi Hastuti Dwi Putro Tejo Baskoro Eddy Sigit Sutarta Edy Sigit Sutarta Endriatmo Soetarto Enni Dwi Wahjunie Evy Damayanthi Fadhila, Cut Hashfi Fahri Setiawan, Fahri Febrianti, Nur Febrianti, Nur Gusdini, Ninin Hadi Riyadi Hadi S. Alikodra Hakim, Nurman Halim Akbar, Halim Hasril Hasan Siregar Hendrayanto Hendrayanto Hidayat Pawitan I Nengah Surati Jaya Indrihastuti, Dinik Indriyati, Lilik Kholil Kholil, Kholil Khursatul Munibah Kristofery, Leonard Kusumawardani, Mawar Kuztakov, Yakov Kuzyakov, Yakov Laksmita Prima Santi Lilik Tri Indriyati, Lilik Tri M Yanuar J Purwanto M. Arif Yusuf M. Yanuar J. Purwanto Magriaty, Riry Mira Ariyanti Moch. Anwar Mohamad Yani Naik Sinukaban Nilasari, Afrisna Nining Puspaningsih Nora H. Pandjaitan NUR LAILA Nurwadjedi Nurwadjedi, Nurwadjedi Omo Rusdiana Parjono, Parjono Paulus B.K. Santoso Pratama, Khabibi Nurrofi' Prima Jiwa Osly Pungkas Syahadat, Pungkas Purwanto, M. Januar J Putra, Gilang Sukma Rudi P Tambunan, Rudi P Rusyana, Nana Samsuri Samsuri Samsuri, Samsuri Setia Hadi Setyo Nugroho Siregar, Hasril H. Sitanala Arsyad Sjarif . Slamet Budi Yuwono Soma, Seokmana Sri Lestari Munajati, Sri Lestari Sri Malahayati Yusuf, Sri Malahayati Sudarmo . Sudarmo, . SUDIRMAN YAHYA Sudradjat Sudradjat Sunarti Sunarti Suprajaka Suprajaka Suria Darma Tarigan Susila Herlambang Sustama, Achmad Surya Adi Sutarta, Edy Sigit Sutarta Sigit Suwarto Suwarto Syaiful Anwar Syamsul Arifin Wahyuni, Enny Dwi Widiatmaka Widiatmaka Widiatmaka, W Witjaksana Darmosarkoro Wiweka Wiweka Wiweka-, - Wiwin Ambarwulan Wuryanto, Wicaksono Tri Yadi Setiadi Yakobus C. W. Siubelan, Yakobus C. W. Yayat Hidayat Yenni Asbur Yohanes Aris Purwanto Yuli Suharnoto Yusanto A Nugroho, Yusanto A Yusdinar, Haki Zaenal Mubarok Zuma, Defri Satiya