Article Per Year (5 Year)
p-Index From 2020 - 2025
0.61
P-Index
This Author published in this journals
All Journal Jurnal Pembangunan Wilayah dan Kota Jurnal Perikanan dan Kelautan Media Komunikasi Geografi KOMUNITAS: INTERNATIONAL JOURNAL OF INDONESIAN SOCIETY AND CULTURE JEJAK Jurnal Transportasi Forum Geografi ETERNAL(english, teaching, learning, and Research Journal) JURNAL GEOGRAFI Geografi dan Pengajarannya Jurnal Wana Tropika Makara Journal of Technology Jurnal Wana Tropika
Totok Gunawan
Faculty of Geography, Gadjah Mada University,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

Published : 20 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 20 Documents
Search

 1   2 
Utilization of Remote Sensing Techniques for Monitoring and Evaluation of Solo Watershed Management Gunawan, Totok
Forum Geografi Vol 17, No 2 (2003)
Publisher : Forum Geografi

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

Abstract

This research is an application of remote sensing technology for monitoring and evaluation of watershed management, which was conducted is Solo Watershed, Central and East Java. The research objectives were 1) to investigate the capability of photomorphic analysis of Landsat Thematic Mapper (TM) and Enhanced Themmatic Mapper (ETM +) imagery as the basic for analyzes of landforms, landuse, and morphometry of the land surface; 2) to calculate the overland flow – peak discharge and erosion – sediment yield as indicators of land degradation of the area; 3) to use the indicators as set of instrument for monitoring and evaluation of watershed management. In this study, visual interpretation by means of on-screen digilization of the digital imagery was carried out in order to identify and to delineate land parameters using photomorphic approach. Based on the photomorphic analysis, several image – based parameters such as relief topography, physical soil characteristic, litho – stratigraphy, and vegetation cover were integrated with other themati maps in a geographic information system (GIS) environment. Estimation of overland flow (C) based on Cook methods (1942) and calculation of peak disccharge (Qmax) based on rational method (Qmax = C. I. A) were applied. Meanwhile, estimation of surface erosion was carried out using Universal Soil Loss Equation (USLE, A = R. K. L. S. CP). The sediment yield (Sy) was estimated using seddiment delivery ratio ( SDR) based on the following formula: Sy = [A + (25% x A)] x SDR. Both pairs of C – Qmax and A – Sy, were utilized as the basis for monitoring and evaluation of the watershed. The combination of C – Qmax and A – Sy were also used as the basis for selection of stream gauge setting / AWLR within particular sub – catchment. It was found that the photomorphic analysis is only color/tone, slope aspects, pattern, and texture, unit boundaries between volcanic – origin landscape (Wilis volcanic complex) and folded – hills landforms (Kendeng ridges) can be delineated. Within the volcanic features, coarse – textured units indicating pyroclastic materials with high drainage density (western part of Lawu volcano). In terms of calculated overland flow and peak discharge of 100 sub – catchment within the Solo Watershed, it was found that there are four sub – catchment with relatively high values (> 0.60 and > 1200 m3s1 for overland flow and peak discharge repectively), namely Samin (Karanganyar), Keduang (Wonogiri), Dengkeng (Klaten), and Sungkur (Ponorogo). Five sub-catchment might be categorized as having moderate peak discharge (Qmax ranges from 1000 – 1200 m3s1), namely Ketonggo (Ngawi), Keyang (Ponorogo), Gandong – Semawur (Magetan), Pepe (Boyolali), and Soko (Bojonegoro), while the remaining 91 sub-catchments are categorized as having low peak discharge. Based on the calculation of erosion and sediment yield, there was no sub-catchment with moderate category (60 – 180 ton ha1yr1), i.e. Samin (Karanganyar), Gonggong (Magetan), Ngisip and Kedung Cilik (Tuban), and Pepe (Boyolali). The other 95 sub-catchment might be categorized as gentle to good. In terms of values representing overland flow – flood and erosion – sediment yield, there are several sub-catchments require first priority in monitoring and evaluation, and are recommended as suitable sites for stream gauge setting, i.e. Samin (Karanganyar), Gonggong (Magetan), Ngisip and Kedung Cilik (Tuban).
PENGEMBANGAN METODE BANGKITAN DAN TARIKAN PERJALANAN BERDASARKAN CITRA QUICKBIRD Dg Bau, Qadriathi; Hartono, Hartono; Parikesit, Danang; Gunawan, Totok
Jurnal Transportasi Vol 13, No 2 (2013)
Publisher : Jurnal Transportasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (900.031 KB)

Abstract

As a basic model, trip generation model aims to obtain the number of movement generated by each origin and the one attracted to each destination zone. Based on the movement, trip generation model is categorized into home-based trip generation and non home-originated/destinated trip attraction. Given that the different types of activities attract trips with different characteristics, it can be concluded that land use management determines the movement and activities. Remote sensing imagery has been extensively used in various research themes including land use management or land use and detailed land utility. As one of the remote sensing imageries, Quickbird imagery is advantageous with its high spatial resolution which is 0.61 cm. Therefore, it is interesting to apply the 0.61 cm spatial resolution to the trip generation model to estimate the number of trips at the trip generation. This aims is to minimize field activities which are high cost, extensive workers, and relatively time consuming.Keywords: trip generation model, trip attraction, quickbird imagery
Impact of Community Forestry Policy on Farmers in Rinjani Protected Forest Area Nandini, Ryke; Kusumandari, Ambar; Gunawan, Totok; Sadono, Ronggo
JEJAK: Jurnal Ekonomi dan Kebijakan Vol 9, No 1 (2016): March 2016
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jejak.v9i1.6653

Abstract

The aim of this research is to know: (1) the economic conditions of the community forestry (HKm) farmers seen from the income and the poverty level; (2) the social conditions of the HKm farmers seen from the education level and the behavior changes; and (3) the change of social economic conditions of the HKm farmers in 2008-2015. This research is conducted from April to July in 2015 and located in four HKm groups of Rinjani protected forest area (RTK I). The data collection is conducted by the interviews with questionnaire to 102 HKm farmers using the Slovin’s formula with 10% of significant degree. This is implemented in descriptive analysis. The research result shows that: (1) the average income of the HKm farmers is Rp 1,739,677 per month/ha and 59.8% of farmers are above the poverty line; (2) the farmers are increasingly aware of education (there are only 5.9% members of farmer’s family who are uneducated) and the lack of firewood utilization (there are only 23.5% farmers who are still using the firewood); and (3) in the period of 2008 to 2015 the average income of the farmers per month increases at 52,03%; the poverty level decreases at 46.5%, and there is a behavior change in which the dependence on the forest resources in the form of firewood decreasesKey words : community forest, income, poverty, behavior change
Social Capital Role in Solving Land Degradation in Tulis Watershed Kusbiantoro, Ari; Awang, San Afri; Gunawan, Totok; Maryudi, Ahmad
KOMUNITAS: INTERNATIONAL JOURNAL OF INDONESIAN SOCIETY AND CULTURE Vol 8, No 2 (2016): Komunitas, September 2016
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/komunitas.v8i2.5438

Abstract

The research aimed at studying social capital role in land degradation solving of Tulis watershed. The parameters under observation were social capital (trust, norm, and social networking), social-economic condition, and land management in Tulis watershed. The parameters were achieved by using data triangulation principle. The analysis used was Structural Equation Modeling (SEM). The model used five variables, which were social capital (X1), society structure (X2), land using conflict (Y1), land management strategy (Y2), and land degradation (Y3). Perspective of social capital theory could be used to explain the interaction between society socio-cultural behaviors and land degradation of Tulis watershed. The model proved that society structure with effective social capital, low conflict in land using, and good land management strategy afforded to decrease land degradation of Tulis watershed.
Impact of Community Forestry Policy on Farmers in Rinjani Protected Forest Area Nandini, Ryke; Kusumandari, Ambar; Gunawan, Totok; Sadono, Ronggo
JEJAK: Jurnal Ekonomi dan Kebijakan Vol 9, No 1 (2016): March 2016
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jejak.v9i1.7185

Abstract

The aim of this research is to know: (1) the economic conditions of the community forestry (HKm) farmersseen from the income and the poverty level; (2) the social conditions of the HKm farmersseen from the education level and the behavior changes; and (3) the change of social economic conditions of the HKm farmers in 2008-2015. This researchis conducted from April to July in 2015 and located in four HKm groups of Rinjani protected forest area (RTK I). The data collection is conducted by the interviews with questionnaireto 102 HKm farmers using the Slovin’s formula with 10% of significant degree.This is implemented in descriptive analysis. The research result shows that: (1) the average income of the HKm farmers is Rp1,739,677 per month/ha and 59.8% of farmers are above the poverty line; (2) the farmers are increasingly aware of education (there are only 5.9% members of farmer’s family who are uneducated) and the lack offirewood utilization (there are only 23.5% farmers who are still using the firewood); and (3) in the period of 2008 to 2015 the average income of the farmers per month increases at 52,03%; the poverty level decreases at 46.5%, and there is a behavior change in whichthe dependence on the forest resources in the form of firewood decreases
PENGEMBANGAN METODE BANGKITAN DAN TARIKAN PERJALANAN BERDASARKAN CITRA QUICKBIRD Dg Bau, Qadriathi; Hartono, Hartono; Parikesit, Danang; Gunawan, Totok
Jurnal Transportasi Vol 13, No 2 (2013)
Publisher : Jurnal Transportasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (900.031 KB) | DOI: 10.26593/jt.v13i2.530.%p

Abstract

As a basic model, trip generation model aims to obtain the number of movement generated by each origin and the one attracted to each destination zone. Based on the movement, trip generation model is categorized into home-based trip generation and non home-originated/destinated trip attraction. Given that the different types of activities attract trips with different characteristics, it can be concluded that land use management determines the movement and activities. Remote sensing imagery has been extensively used in various research themes including land use management or land use and detailed land utility. As one of the remote sensing imageries, Quickbird imagery is advantageous with its high spatial resolution which is 0.61 cm. Therefore, it is interesting to apply the 0.61 cm spatial resolution to the trip generation model to estimate the number of trips at the trip generation. This aims is to minimize field activities which are high cost, extensive workers, and relatively time consuming.Keywords: trip generation model, trip attraction, quickbird imagery
Multidimensional Scaling Approach to Evaluate the Level of Community Forestry Sustainability in Babak Watershed, Lombok Island, West Nusa Tenggara Nandini, Ryke; Kusumandari, Ambar; Gunawan, Totok; Sadono, Ronggo
Forum Geografi Vol 31, No 1 (2017): July 2017
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v31i1.3371

Abstract

Community forestry in Babak watershed is one of the efforts to reduce critical land area. The aim of this research was to evaluate the level of community forestry sustainability in both of community forest (HKm) and private forest in Babak watershed. Multidimensional scaling (MDS) was used to analyse the level of community forest sustainability based on the five dimensions of ecology, economy, social, institutional, and technology as well as 29 attributes. Leverage analysis was used to know the sensitive attributes of sustainability, while Monte Carlo analysis and goodness of fit was used to find the accuracy of MDS analysis. The result shows that HKm was in moderate sustainability level (sustainability index 54.08%) and private forest was in less sustainability level (sustainability index 48.53%). Furthermore, the ecology and technology in HKm were classified as less sustainable, while the institution and technology in private forest were considered less sustainable. There were 11 sensitive attributes of HKm and 19 sensitive attributes of private forest. The priorities of attribute improvement in HKm include land recovering (the dimension of ecology) and cooperative development (the dimension of technology). In private forest, the priorities of attribute improvement include leadership capacity building (the institutional dimension) and also the use of silviculture intensive and soil conservation (the dimension of technology).
Modeling of Percentage of Canopy in Merawu Catchment Derived From Various Vegetation Indices of Remotely Sensed Data Sulistyo, Bambang; Gunawan, Totok; Hartono, H; Danoedoro, Projo
Forum Geografi Vol 27, No 1 (2013): July 2013
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v27i1.5075

Abstract

The research was aimed at studying Percentage of Canopy mapping derived from various vegetation indices of remotely-sensed data int Merawu Catchment. Methodology applied was by analyzing remote sensing data of Landsat 7 ETM+ image to obtain various vegetation indices for correlation analysis with Percentage of Canopy measured directly on the field (PTactual) at 48 locations. These research used 11 (eleven) vegetation indices of remotely-sensed data, namely ARVI, MSAVI, TVI, VIF, NDVI, TSAVI, SAVI, EVI, RVI, DVI and PVI. The analysis resulted models (PTmodel) for Percentage of Canopy mapping. The vegetation indices selected are those having high coefficient of correlation (>=0.80) to PTactual. Percentage of Canopy maps were validated using 39 locations on the field to know their accuracies. Percentage of Canopy map (PTmodel) is said to be accurate when its coefficient of correlation value to PTactual is high (>=0.80). The research result in Merawu Catchment showed that from 11 vegetation indices under studied, there were 6 vegetation indices resulted high accuracy of Percentage of Canopy maps (as shown in the value of coefficient of correlation as >=0.80), i.e. TVI, VIF, NDVI, TSAVI, RVI dan SAVI, while the rest, namely ARVI, PVI, DVI, EVI and MSAVI, have r values of < 0.80.
Utilization of Remote Sensing Techniques for Monitoring and Evaluation of Solo Watershed Management Gunawan, Totok
Forum Geografi Vol 17, No 2 (2003)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v17i2.532

Abstract

This research is an application of remote sensing technology for monitoring and evaluation of watershed management, which was conducted is Solo Watershed, Central and East Java. The research objectives were 1) to investigate the capability of photomorphic analysis of Landsat Thematic Mapper (TM) and Enhanced Themmatic Mapper (ETM +) imagery as the basic for analyzes of landforms, landuse, and morphometry of the land surface; 2) to calculate the overland flow – peak discharge and erosion – sediment yield as indicators of land degradation of the area; 3) to use the indicators as set of instrument for monitoring and evaluation of watershed management. In this study, visual interpretation by means of on-screen digilization of the digital imagery was carried out in order to identify and to delineate land parameters using photomorphic approach. Based on the photomorphic analysis, several image – based parameters such as relief topography, physical soil characteristic, litho – stratigraphy, and vegetation cover were integrated with other themati maps in a geographic information system (GIS) environment. Estimation of overland flow (C) based on Cook methods (1942) and calculation of peak disccharge (Qmax) based on rational method (Qmax = C. I. A) were applied. Meanwhile, estimation of surface erosion was carried out using Universal Soil Loss Equation (USLE, A = R. K. L. S. CP). The sediment yield (Sy) was estimated using seddiment delivery ratio ( SDR) based on the following formula: Sy = [A + (25% x A)] x SDR. Both pairs of C – Qmax and A – Sy, were utilized as the basis for monitoring and evaluation of the watershed. The combination of C – Qmax and A – Sy were also used as the basis for selection of stream gauge setting / AWLR within particular sub – catchment. It was found that the photomorphic analysis is only color/tone, slope aspects, pattern, and texture, unit boundaries between volcanic – origin landscape (Wilis volcanic complex) and folded – hills landforms (Kendeng ridges) can be delineated. Within the volcanic features, coarse – textured units indicating pyroclastic materials with high drainage density (western part of Lawu volcano). In terms of calculated overland flow and peak discharge of 100 sub – catchment within the Solo Watershed, it was found that there are four sub – catchment with relatively high values (> 0.60 and > 1200 m3s1 for overland flow and peak discharge repectively), namely Samin (Karanganyar), Keduang (Wonogiri), Dengkeng (Klaten), and Sungkur (Ponorogo). Five sub-catchment might be categorized as having moderate peak discharge (Qmax ranges from 1000 – 1200 m3s1), namely Ketonggo (Ngawi), Keyang (Ponorogo), Gandong – Semawur (Magetan), Pepe (Boyolali), and Soko (Bojonegoro), while the remaining 91 sub-catchments are categorized as having low peak discharge. Based on the calculation of erosion and sediment yield, there was no sub-catchment with moderate category (60 – 180 ton ha1yr1), i.e. Samin (Karanganyar), Gonggong (Magetan), Ngisip and Kedung Cilik (Tuban), and Pepe (Boyolali). The other 95 sub-catchment might be categorized as gentle to good. In terms of values representing overland flow – flood and erosion – sediment yield, there are several sub-catchments require first priority in monitoring and evaluation, and are recommended as suitable sites for stream gauge setting, i.e. Samin (Karanganyar), Gonggong (Magetan), Ngisip and Kedung Cilik (Tuban).
Social Capital Role in Solving Land Degradation in Tulis Watershed Kusbiantoro, Ari; Awang, San Afri; Gunawan, Totok; Maryudi, Ahmad
KOMUNITAS: International Journal of Indonesian Society and Culture Vol 8, No 2 (2016): Komunitas, September 2016
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/komunitas.v8i2.5438

Abstract

The research aimed at studying social capital role in land degradation solving of Tulis watershed. The parameters under observation were social capital (trust, norm, and social networking), social-economic condition, and land management in Tulis watershed. The parameters were achieved by using data triangulation principle. The analysis used was Structural Equation Modeling (SEM). The model used five variables, which were social capital (X1), society structure (X2), land using conflict (Y1), land management strategy (Y2), and land degradation (Y3). Perspective of social capital theory could be used to explain the interaction between society socio-cultural behaviors and land degradation of Tulis watershed. The model proved that society structure with effective social capital, low conflict in land using, and good land management strategy afforded to decrease land degradation of Tulis watershed.
Co-Authors Abd. Rasyid Syamsuri Agung Setyawan Ahmad Maryudi Ambar Kusumandari Annisa Shofa Tsuraya Ari Kusbiantoro, Ari Ashari, Windi Atikawati, Dini - Bambang Sulistyo Danang Parikesit Danoedoro Danoedoro Djoko Marsono Fitriadi Fitriadi H Hartono Hadi, Mohammad Pramono Hartono Hartono Hj. Mardianah, Hj. Nur Arifatul Ulya Projo Danoedoro Puguh Dwi Raharjo Qadriathi Dg Bau R. Rijanta Ronggo Sadono Ryke Nandini Sakinah, Zaida Haiyun Sambas Sabarnurdin San Afri Awang Saputro, Eko Ali Slamet Suprayogi Sofyan P. Warsito, Sofyan P. Sri Rum Giyarsih Sunarto Sunarto Suprapto Dibyosaputro Suratman Suratman Wahyu Andayani Wirdati Irma Yundari, Yundari