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All Journal Indonesian Journal of Geography Jurnal Ilmu Pertanian Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Economic Journal of Emerging Markets Jurnal Ilmu Lingkungan Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Majalah Geografi Indonesia JURNAL PENELITIAN SAINTIKA Journal of Degraded and Mining Lands Management Proceeding International Conference on Global Resource Conservation Journal of Engineering and Technological Sciences agriTECH Forum Geografi Jurnal Tataloka Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) MAJALAH ILMIAH GLOBE SAINS TANAH - Journal of Soil Science and Agroclimatology Jurnal Geografi, Edukasi dan Lingkungan Civil and Environmental Science Journal (CIVENSE) Jurnal Mineral, Energi dan Lingkungan Jurnal Penelitian Pengelolaan Daerah Aliran Sungai International Journal of Remote Sensing and Earth Sciences (IJReSES) jurnal Ilmu Pertanian (Agricultural Science) JAGAT (Jurnal Geografi Aplikasi dan Teknologi) Budimas : Jurnal Pengabdian Masyarakat Jurnal Mineral, Energi dan Lingkungan Journal of Applied Geology JURNAL HUTAN TROPIS BIROKRASI PANCASILA Jurnal Ilmu Kehutanan Jurnal Manusia dan Lingkungan Prosiding Seminar Hasil Penelitian dan Pengabdian Kepada Masyarakat Geosfera Indonesia The International Journal of Remote Sensing and Earth Sciences (IJReSES)
Junun Sartohadi
Department Of Soil Science, Faculty Of Agriculture, Universitas Gadjah Mada
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Mechanical Engineering Social Sciences Other

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Estimation of Soil Moisture Regime Based on Analysis of Rainfall, Air Temperature, and Landform - Soil (Case Study on River Regional Unit (SWS) Pemali - Comal) Sartohadi, Junun; Saragih, Junita
Forum Geografi Vol 18, No 2 (2004)
Publisher : Forum Geografi

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Abstract

The objectives of this research were 1) to determine soil moisture regime based on rainfall and temperature data; 2) to make a correction of the first objective based on soil moisture surplus and deficit calulation; 3) to study the pattern of soil moisture regime distribution in the research area. The field sampling tehniques applied in this research was stratified proposed sampling. Landform unit was applied as strata. Soil depth and texture were considered during field soil sampling within the landform unit. Rainfall and air temperature data were analyzed using Newball Simulation Model (NSM) to determine a tentative soil moisture regime. The tentative soil moisture regime was corrected using calculation soil moisture regime of soil moisture surplus and deficit. The soil moisture surplus and deficit was calculated based on soil depth, soil texture, rainfall, and temperature data. The result of this research were 1) soil moisture regime estimated using NSM ranged from ustic to udic; 2) soil moisture regime corrected using surplus and/ or defiit alulation of soil moisture ranged from xeric to udic; 3) the pattern of soil moisture regime distribution in the reaserch area was not only controlled by the pattern of rainfall – air temperature distribution but it was also controlled by the pattern of soil – landform distribution. Under the some amount of annual rainfall, shallow and coarse texture soils have drier soil moisture regime than deep and fine texture soils.
Spatial Correlation Between Land Development Level and Vulnerability Level of Mass Movement in the Watershed of Kayangan, Kulon Progo Regency, Yogayakarta Special Region Sartohadi, Junun; Purwaningsih, Rina
Forum Geografi Vol 18, No 1 (2004)
Publisher : Forum Geografi

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Abstract

The objective of this research were: 1) to study the degree of soil development, and 2) to study the spatial correlation between the degree of soil development and the degree of mass movement susceptibility in the research area. The sampling method applied in this research was stratified sampling. Soil mapping units were applied as strata. The sample within strata was determined according the degree of mass movement susceptibility. The degree of soil development was determined using quantitative method of color indices and proflie index. The color indices were Buntley – Westin (B – W), Harden (H), and Hurst. The profile index was determined using solum, texture, structure, and soil consistency. The degree of mass movement susceptibility map was taken from PSBA UGM (2001). Spatial correlation between the soil development map and the mass movement susceptibility map was analyzed using “error matrix”. The result of this research indicated that the degree of soil development in the research area could be classified into three classes, i.e. class 1 (weakly develop soil); class 2 (moderately developed soil), class 3 (strongly developed soil). The degree of mass movement susceptibility was classified into three classes, i.e. class 1 (low susceptibility), class 2 (moderate susceptibility), and class 3 (high susceptibility). The result of error matrix calculation between mass movement susceptibility and soil development were 9.56%; 21.96%; 30.21% for BW + Ha, Hurst, and profile indices respectively. There values showed that there were low spatial correlations between the degree of soil development and mass movement susceptibility in the study area.
Geospatial Assessment of Coseismic Landslides in Baturagung Area Saputra, Aditya; Sartohadi, Junun; Hadmoko, Danang Sri; Gomez, Christopher
Forum Geografi Vol 29, No 2 (2015): Forum Geografi
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Java, the most densely populated island in Indonesia, is located on top of the most seismically active areas in Southeast Asia: the Sunda Megathrust. This area is frequently hit by strong earthquake. More than 3,300 M>5earthquakesoccurred between 1973-2014. The wide range of mountainous areas and high intensity of rainfall, make several part of the island one of the most exposed regions for coseismic landslides such as Baturagung area, the Southeast mountainous area of Yogyakarta Province. An integrated method between RS and GIS was used to conduct the vulnerability assessment due to the lack of the site specific slope instability analysis and coseismic landslides data. The seismic zonation of Baturagung area was obtained based on the analysis of Kanai attenuation. The geologic information was extracted using remote sensing interpretation based on the 1:100,000 geologic map of Yogyakarta and geomorphologic map of Baturagung area as well. The coseismic landslide hazard assessment has been estimated using scoring analysis in the GIS platform proposed by Mora and Vahrson (1993) with several modification. The accomplished coseismic landslide hazard map shows medium hazard coverage in the eastern areas, in the upper slope of Baturagung area, which consists of Semilir Formation. The result provides a distinct description of coseismic landslides hazard distribution in Batuaragung area. However, it should only be the preliminary assessment of the site specific investigation especially on valuable area or asset. 
A Review of Society’s Behaviour Towards Land Management of Susceptible Area to Landslide in Pekuncen, Banyumas Suwarno, Suwarno; Sartohadi, Junun; Sunarto, Sunarto; Sadharto, Djarot
Forum Geografi Vol 30, No 1 (2016): July 2016
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Land management is a manifestation of the society’s behaviour in utilizing the land. The objective of the research was to examine the effect of education level, income, land tenure, knowledge, and information input on the society’s behaviour in managing the area susceptible to landslide in Pekuncen sub-district, Banyumas district.   The method of this research was survey by employing questionnaire to collect field data. The variable comprised of the data of education level, income, land tenure, knowledge, and information input.. Stratified random sampling was applied to determine the samples of the research. The area susceptibility class  was considered as the strata in which each stratum consisted of 40 family heads as the respondents. The data analysis applied statistical test of multi-regression. Research area was divided into three classes of landslide susceptibility comprising of low, medium, and high class. Education level, income, land tenure, knowledge, and information input significantly influenced the society’s behaviour dealing with land management (determination co-efficiency (R²) was 69.9 %). It occurred in the area of medium susceptibility class. Information input (regression coefficient/(beta) = 0.817) was the most influential predictor of society’s behaviour in land management located in the low susceptibility class. From this research, it was expected that the description about the factors that influenced the society’s behaviour in managing the landslide-prone area would be a valuable reference in preventing landslide in those areas.
Sustainability of Organic Farming System of Lowland Paddy in Deli Serdang Regency, North Sumatra Province Panjaitan, Ernitha; Indradewa, Didik; Martono, Edhi; Sartohadi, Junun
Proceeding International Conference on Global Resource Conservation Vol 6, No 1: Proceeding of 6th ICGRC 2015
Publisher : Proceeding International Conference on Global Resource Conservation

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Abstract

The objectives of this study was to assess the farming system of organic lowland paddy to soil pollution compared with conventional farming system in Deli Serdang Regency. An environmental assesment in this research as limited to the soil pollution caused by pesticides and chemical fertilizers. Soil samples were grouped into low and upper layers. Each soil composites was collected from ten sampling points. Which each consist of 5 sampling points of organic paddy farming system and 5 sampling points of conventional paddy farming  system. The results showed that the levels of pesticides and nitrate in paddy soil was influenced by soil layers, meanwhile although was not statistically significant, the levels of pesticides and nitrate increased due to the way of cultivation.The results indicated that in general the soil pollution on organic paddy farming system was lower than conventional farming. Levels of pesticides and nitrate in the soil layer 20-40 cm was higher than levels of pesticides in the 0-20 cm. Pesticides and nitrate leached by water gets into the deeper layers of soil. The increased level of pesticides in soil of conventional farming was higher 0.96 ppm during the dry season and lowest 0.38 ppm in the rainy season compared with organic farming. The increased level of nitrate in soil of conventional farming was higher 0.45 ppm during the rainy season compared with organic farming, however in the dry season, the level of nitrate in conventional farming was lowest 2.32 ppm compared with organic farming.Keywords: conventional farming; organic farming; paddy; sustainability
A Review of Society’s Behaviour Towards Land Management of Susceptible Area to Landslide in Pekuncen, Banyumas Suwarno, Suwarno; Sartohadi, Junun; Sunarto, Sunarto; Sadharto, Djarot
Forum Geografi Vol 30, No 1 (2016): July 2016
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v30i1.1704

Abstract

Land management is a manifestation of the society’s behaviour in utilizing the land. The objective of the research was to examine the effect of education level, income, land tenure, knowledge, and information input on the society’s behaviour in managing the area susceptible to landslide in Pekuncen sub-district, Banyumas district.   The method of this research was survey by employing questionnaire to collect field data. The variable comprised of the data of education level, income, land tenure, knowledge, and information input.. Stratified random sampling was applied to determine the samples of the research. The area susceptibility class  was considered as the strata in which each stratum consisted of 40 family heads as the respondents. The data analysis applied statistical test of multi-regression. Research area was divided into three classes of landslide susceptibility comprising of low, medium, and high class. Education level, income, land tenure, knowledge, and information input significantly influenced the society’s behaviour dealing with land management (determination co-efficiency (R²) was 69.9 %). It occurred in the area of medium susceptibility class. Information input (regression coefficient/(beta) = 0.817) was the most influential predictor of society’s behaviour in land management located in the low susceptibility class. From this research, it was expected that the description about the factors that influenced the society’s behaviour in managing the landslide-prone area would be a valuable reference in preventing landslide in those areas.
The Landslide Distribution in Loano Sub-District, Purworejo District, Central Java Province, Indonesia Sartohadi, Junun
Forum Geografi Vol 22, No 2 (2008): December 2008
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v22i2.4987

Abstract

This research was proposed to figure out the importance of human influence on landslide disaster. The research objectives were: (1) to map the locations of landslide during the period of January 2004-March 2008 of the study area; (2) to map the degree of landslide hazard of the study area; (3) to analyze the distribution of landslide based on the landslide hazard map; and (4) to analyze the distribution of landslide based on the road network. The method of this research consists of field survey and laboratory works. The field survey was intended to map the location of landslide which happened during the period of January 2004 up to March 2008. The land characteristics and land qualities data have been collected based on geomorphological approach. The laboratory works were proposed to analyze the field data of land characteristics and land qualities for landslide hazards classification and mapping purposes. Scoring method was applied for landslide hazard evaluation. Some geographical information techniques were applied for mapping purposes and spatial data analysis of landslide distribution. Map overlay and buffering techniques were applied during landslide distribution analysis. The results of the research showed that: (1) there were 291 landslides collected during the research period; (2) the study area consists of very high, high, moderate, and low of landslide hazard classes. There was no safe area of landslide hazard within the study area; (3) most the landslide occasions were more influenced by human activities than derived by physical conditions. Some of human activities that induced landslide in the study area were slope cutting for: road construction, houses, agricultural purposes, and sand and stone mining in the river canal; (4) the spatial distribution of most landslide (>90%) were parallel with road networks.
Tinjauan Kerentanan, Risiko dan Zonasi Rawan Bahaya Rockfall di Kulonprogo, Yogyakarta Hizbaron, Dyah R.; Hadmoko, Danang Sri; Wibawa, Samodra; Dalimunthe, Syarifah Aini; Sartohadi, Junun
Forum Geografi Vol 24, No 2 (2010): December 2010
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v24i2.5021

Abstract

This research aims at identification of spatial plan zonation in rock fall prone areas. Research method applies hazard, vulnerability and risk analysis as an input for spatial modeling using Multi Criteria Evaluation (MCE). Research reveals that in Girimulyo is susceptible towards rock fall. In the last decades, there were 16 occurrences of rock fall that impacted to physical damages. Fortunately, such disaster did not cause any harm to human life. Therefore, research argue that physical vulnerability analysis can be analyzed, while social vulnerability cannot be analyzed further, since it had less data support. According to the research, there are more than 48 housing units located in hazard zone. Hence, local government should initiate structural mitigation to avoid further loss. Research also reveals that areas with high susceptibility will not directly consider as high risk zone, unless it has high vulnerability index. Example: areas along escarpment, where it has high susceptibility, but it has no element at risk in the area. Thereby, research tries to present zonation for prone hazard areas, using risk index. The result is quite representative, since possible areas to be developed is anywhere alongside road network. Indication of the area is produced from the multi criteria analysis. Multi criteria analysis is an essential method to combine spatial data and its attribute. Using such method requires more data input and expertise in justifying indicator to be selected.
Estimation of Soil Moisture Regime Based on Analysis of Rainfall, Air Temperature, and Landform - Soil (Case Study on River Regional Unit (SWS) Pemali - Comal) Sartohadi, Junun; Saragih, Junita
Forum Geografi Vol 18, No 2 (2004)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v18i2.617

Abstract

The objectives of this research were 1) to determine soil moisture regime based on rainfall and temperature data; 2) to make a correction of the first objective based on soil moisture surplus and deficit calulation; 3) to study the pattern of soil moisture regime distribution in the research area. The field sampling tehniques applied in this research was stratified proposed sampling. Landform unit was applied as strata. Soil depth and texture were considered during field soil sampling within the landform unit. Rainfall and air temperature data were analyzed using Newball Simulation Model (NSM) to determine a tentative soil moisture regime. The tentative soil moisture regime was corrected using calculation soil moisture regime of soil moisture surplus and deficit. The soil moisture surplus and deficit was calculated based on soil depth, soil texture, rainfall, and temperature data. The result of this research were 1) soil moisture regime estimated using NSM ranged from ustic to udic; 2) soil moisture regime corrected using surplus and/ or defiit alulation of soil moisture ranged from xeric to udic; 3) the pattern of soil moisture regime distribution in the reaserch area was not only controlled by the pattern of rainfall – air temperature distribution but it was also controlled by the pattern of soil – landform distribution. Under the some amount of annual rainfall, shallow and coarse texture soils have drier soil moisture regime than deep and fine texture soils.
Evaluasi Potensi Degradasi Lahan dengan Menggunakan Analisa Kemampuan Lahan dan Tekanan Penduduk terhadap Lahan Pertanian di Kecamatan Kokap Kabupaten Kulon Progo Sartohadi, Junun
Forum Geografi Vol 22, No 1 (2008): July 2008
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v22i1.4921

Abstract

Kokap sub district is located in Kulonprogo District, Yogyakarta Province. It has some problems of landslides and misuse of land. The research was proposed to determine the regions having potential of land degradation based on the land capability and population pressure analysis. This research was carried out using field survey. The field survey was based on landform unit as area sampling unit. The (Land Classification and Land Use Planning) LCLP software was applied for land capability classification. The Soemarwoto method was applied for the evaluation of population pressure on the agriculture land. The results of this research were: (1) land capability in the study area was varies from class II – class VII with limitation factors of slope, soil erodibility, soil texture, soil permeability and soil effective depth, (2) the whole study area fell into high population pressure class (that means it had exceed of its land capability), (3) most of the study area (51.9%) had been classified into high potential of land degradation.
Co-Authors . Awaluddin, . Adhera Sukmawijaya Adhitama, Adib Prima Aditya Saputra Afid Nurkholis Ahmad Priyo Sambodo Ahmad Syukron Prasaja Ajun Prayitno Akbar, Aji Ali Amir Noviyanto Anastasia Neni Candra Purnamasari Andi Sungkowo Andi Syahputra Andri Kurniawan Anggri Setiawan Anggri Setiawan Ardila Yananto Awaluddin Azwar Maas Christanto, Nugroho Christanto, Nugroho Christopher Gomez Christopher Gomez Christopher Gomez, Christopher D Daryono Danang Sri Hadmoko Danang Sri Hadmoko Danang Sri Hadmoko Danang Sri Hadmoko Daryono, D Dema Azmir Hatta Didik Indradewa Didik Indradewa Djarot Sadharto Djarot Sadharto, Djarot Djati Mardiatno Djati Mardiatno Djati Mardiatno Dyah R. Hizbaron Dyah Rahmawati Hizbaron Edhi Martono Edhi Martono Ekha Yogafanny Erika Galih Ayu Priyawati Ernitha Panjaitan Erny Wibawanti Estuning Tyas Wulan Mei Fathia Lutfiananda Ferad Puturuhu Franck Lavigne Franck Lavigne, Franck Hairil Adzulyatno Hadini Harlin Jennie Pulungan, Nur Ainun Hartanti Hartanti Hero Marhaento Hero Marhaento, Hero Hizbaron, Dyah R. Hizbaron, Dyah R. Ihsan, Haikal Muhammad Jetten, Victor G Junita Saragih Junita Saragih, Junita Khairisa, Noor Husna Kuswaji Dwi Priyono Lies Rahayu M Pramono Hadi, M Pramono M. Anggri Setiawan Makruf Nurudin Maola Maqdan Maria E. I. Shrestha Marshanda Sasmita Putri Masruroh, Heni Maulana, Edwin Meiarti, Rini Mohammad Kholid Ridwan Mohammad Pramono Hadi Mr. Suwarno, Mr. Mudrajat Kuncoro Muhammad Anggri Setiawan Muhammad Anggri Setiawan Muhammad Anggri Setiawan Muhammad Anggri Setyawan Nehren, Udo Ngadisih Ngadisih Ngadisih Ngadisih Nisaa', Ratri Ma'rifatun Nugroho Crhristanto Nurul Hidayati Nurwihastuti, Dwi Wahyuni Pertiwi, Rianita Praharto, YB Pramasti Dyah Nhindyasari Projo Danoedoro Pulungan, Nur Ainun Harlin Jennie Punuf, Defritus Aldrin Puspita Indra Wardhani R. Rijanta Ratri Ma'rifatun Nisaa' Retnadi Heru Jatmiko Rimawan Pradiptyo Rina Purwaningsih Rina Purwaningsih, Rina Rini Meiarti Rosalina Kumalawati S Sudibyakto S Sunarto Saidah Istiqomah Samodra Wibawa Samodra Wibawa Samodra, Guruh Santika Purwitaningsih Seftiawan Samsu Rijal Seftiawan Samsu Rijal Setiawan, Anggri Setiawan, M Anggri Setiawan, M. Anggri Setiawan, M.Anggri Setiawan, Muhammad Anggri Setiawan, Muhammad Anggri Seto, Toshikazu Setyawan, Muhammad Anggri Shrestha, Dhruba Phika Shrestha, Druba Phika Shrestha, Maria E. I. Su Ritohardoyo Sudibyakto, S Sunarto Sunarto Sunarto Sunarto Sunarto Sunarto Sunarto, S Surya Sabda Nugraha Suryanto Susatio, Raja Suwarno Suwarno Syarifah Aini Dalimunthe Syarifah Aini Dalimunthe, Syarifah Aini Tjut Sugandawaty Djohan Toshikazu Seto Trida Ridho Fariz Tris Sugiarto Tris Sugiarto Victor Jetten, Victor Wahyu Wardhana Wahyu Wilopo Wahyudi Wahyudi Waode Asryanti Wida Yeni Astuti, Yeni Yoga Darmajati