Indonesian Journal of Geography
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[RETRACTED] Location–Allocation Model Applied to Urban Public Services: Spatial Analysis of Fire Stations in Mysore Urban Area Karnataka, India
No full textThis article was retracted due to the following reasons. Retraction note here: https://jurnal.ugm.ac.id/ijg/article/view/62031/pdf RETRACTION TO : Javaid Ahmad Tali, Divya S, Asima Nusrath (2020). Location–Allocation Model Applied to Urban Public Services: Spatial Analysis of Fire Stations in Mysore Urban Area Karnataka, India. Indonesian Journal of Geography, 52(2). 201-207 (doi. 10.22146/ijg.25365). This article has been retracted by Publisher based on the following reason:Double publish in Transactions of the Institute by Indian Geographers, 2019, 41(1), pp. 1-12 Based on clarification via email, Authors of the above paper have admitted their double publish to the previously published paper by Transactions of the Institute of Indian Geographers, 2019, 41(1), pp. 1-12We apologies are offered to readers of the journal that this was not detected during the submission process
The Effect of Land Unit Elimination on The Conservation Activity Plan at Air Bengkulu Watershed, Bengkulu Province
No full textTo enable conservation of degraded land requires Map of Conservation Activity Plan (CAP). The map is established based on a model developed by the then Ministry of Environment and Forestry. One step to analyze the CAP is land unit elimination (LUE) having area of < 1 cm2. This study aimed to determine the effect of LUE on the CAP at Air Bengkulu Watershed. Maps used for input to CAP are EHL (Erosion Hazard Level), Soil Depth, Slope, Population Pressure, and the Recommended Landuse, whereas to calculate EHL requires R, K, LS, C, and P Factors. CAP Map as a result without involving LUE is compared to the CAP Map with involving LUE. The research result showed that the LUE influences on the change of the recommended of the CAP up to 77.6% of the total area of the study, either in engineering recommended or in vegetatively recommended conservation, while the rest (22.4%) were unchanged.
Topography changes and thermal distribution at the Kelud crater after the 2014 Plinian eruption
No full textTopography of a volcano crater can change due to endogenic processes such as deformation or eruption, or surface processes. Erosion and deposition are surface processes that may occur and gradually change the slope of the inner volcano crater. Here, we investigated erosion and deposition processes that occurred in the Kelud crater after the 2014 plinian eruption. We used high-resolution Digital Elevation Models (DEMs) and orthomosaic images derived by drone photogrammetry that acquired between September 2018 and July 2019. We obtained hundreds of aerial images which were reconstructed to obtain 3D models of Kelud’s crater by using Structure from Motion (SfM) technique. Results show erosions at alluvial fans that dominantly located at the east valleys of Kelud crater. The erosion removed the volcanic materials up to -5 m which transported and deposited close to the vicinity of the Kelud crater. The deposition process causes the increase of the Kelud crater lake up to 3 m. Moreover, we also mapped the thermal distribution of the Kelud crater lake by using low cost thermal camera. Our thermal investigation is able to identify some hotspots at the vicinity of the Kelud crater lake with range temperature of 43.7°C – 55.3°C, while the average apparent temperature of the Kelud crater lake is ~ 29°C. This high temperature area may indicate underwater active fractures that continuously release volcanic gasses which leads to convection heat transfer through Kelud’s water lake
Migration, Landscape Dynamics, and Fishermen Livelihood: A Case Study At East Kalimantan
No full textThis paper argues for the interrelationship between migration process, dynamics of landscape structure, and sustainable livelihood based on an in-depth study in East Kalimantan, known as a hub of oil and gas and mining industry as well as plantation and housing area for fishing communities. Using anthropological approach, data was collected using a range of methods including observation, GIS-based spatial mapping, household survey, focus group discussion (FGD), and in-depth interviews.Findings of this study showed that the long process of landscape change has affected community livelihood due to differential resource allocation. Intensive migration occurring alongside rapid industrialization has not only increased competition between different interest groups, but has also changed local spatial configuration. Nonetheless, findings also highlighted integration between differentinterest groups which has also influenced livelihood. Such process is a form of ‘smart’ response in showing community resilience and ability to share living space by minimizing conflicts.
Defining Rural Diversification in a small-farming region: The Case of Yogyakarta Special Province, Indonesia
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Evaluation of Blended Irrigation Schemes: A Micro-Level Decadal Study of Shrigonda Tahsil in Drought Prone Western Maharashtra, India
Get PDFThe qualitative parameters of development of a quantitatively increasing population for a resource stressed country like India, is dependent on the sustainability of food availability. Agriculture remains to be a backbone of the economy and food supply. Agriculture, however, in many parts of India, even today, remains to be rain-fed. Recent efforts at the government level, Centre and State, have helped to bring a significant amount of land, initially under rain-fed agriculture, to under irrigation of various types. These varied types of irrigation change regionally; on various agro-factors. Source of water resources to be used for irrigation in the respective climatic sub-regions and the subsequent crop cultivated in the respective region are just a few primary factors controlling the effectivity of the type of irrigation method used. Irrigation requires technological inputs, which, in turn, requires financial expenses that need to be under the significant agro-factors mentioned above. Governments at the Centre and State levels; have been continuously making efforts to support irrigation practices through direct and indirect supportive schemes. These schemes have their positive, and at times, negative impact on the local agriculture at a micro-level. Agriculture is a state subject in India. The Centre does provide finance for various agricultural projects as well. Micro-irrigation has been and will play an essential role in the future in India. Ever since 1992, the government has been taking initiatives in micro-irrigation. These have eventually transpired into schemes, i.e., Centrally Sponsored Scheme (CSS) in 2006, later upgraded to the National Mission on Micro Irrigation (NMMI) implemented since 2013-14 and subsequently National Mission for Sustainable Agriculture. The present study is an attempt to evaluate such 'State' (Central and State Governments)sponsored irrigation programs on agricultural practices at a micro level, over a decade (2005-2016). The study area identified for the same is a tahsil in the Ahmednagar district of Western Maharashtra. What is significant is that, the said tahsil Shrigonda; lies in the drought-prone region and that there have been cyclic variations in the rainfall, and the various agriculture crops cultivated through the last decade. State Government-sponsored schemes are seen to have been blended with Central Government schemes by the local farmers to achieve sustainability of crops. The effects of the same, on the cycle of products, is worth an observation.Human factors also play an equally important role while using the developing Technology of micro-irrigation. Farmers try-and-test various crops with the respective Micro-irrigation technique, in the respective agro-climatic regions, particularly when the source of water is not assured in the drought-prone area. Subsequent allied government schemes (farm ponds), the market value of the product, and perishability or shelf-life of the products also play a significant role in the choice of crop. The success of the micro-irrigation schemes will, however, be dependent on the effective delivery mechanism through close coordination among all the tiers of government and capacity building of beneficiaries.
Land Surface Temperature Assessment in Central Sumatra, Indonesia
No full textLand Surface Temperature (LST) assessment can explain temperature variation, which may be influenced by factors such as elevation, land cover, and the normalized difference vegetation index (NDVI). In this study, a multiple linear regression model of LST variation was constructed based on data from the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA’s Terra satellite, relating to the period, 2000-2018. The highest LST variation of nearly 1.3 °C/decade was found in savanna areas while the lowest variation was in the evergreen broadleaf forest and woody savanna, which experienced a decrease of 2.1 °C/decade. The overall mean change of LST was -0.4 °C/decade and the regression model with LST as the dependent variable and elevation, land cover type, and NVDI as independent variables produced an R square of 0.376. The variation in LST was different depending upon the NDVI
Spatial and Temporal Analysis of Seasonal Rainfall on the East Coast of North Sumatra, Indonesia
No full textThe east coast of North Sumatra has lower rainfall than the central (Bukit Barisan) and the west coast. Meanwhile, the literature on the influence of climate phenomena, such as El Nino, La Nina, and positive/negative IOD, on the rainfall distribution in North Sumatra remains quite limited. This paper aims to describe the spatial distribution of seasonal rainfall on the east coast of North Sumatra and its correlation with ENSO and the IOD. Hopefully, the spatial analysis of seasonal rainfall and its correlation to ENSO and IOD can improve the understanding on rainfall distribution and the influenced factors in the study area. For 16 years (1999–2014), the monthly rainfall data at 52 rain gauge stations that passed the homogeneity test were divided into the seasonal 6-month and 4-month. Hereafter, the seasonal rainfall was spatially analyzed with the Inverse Distance Weighting (IDW) method using ArcMap software. The spatial analysis results can clearly describe the rainfall dynamics and its anomalies, therefore, can be more easily understood. The repetition of rainfall anomaly patterns can be seen in January to June (JFMAMJ), January to April (JFMA), and May to August (MJJA), which occurs in 3–4 years. Furthermore, the Pearson-correlation analysis shows that SOI has a strong positive correlation on JFMAMJ (0.529), JFMA (0.485), and MJJA (0.366), while IOD has a strong positive correlation on MJJA (0.512) and negative on September to December - SOND (-0.341).
The Reconstruction of a Javanese Civilization Cultural Landscape in 8 AD based on Canggal Inscription in Gendol Hill Complex, Magelang, Central Java
No full textThe research took place in the Gendol Hill complex, Magelang, Central Java. One of the peaks in the hills complex is Mount Wukir, where a Canggal Inscription was found. The Canggal Inscription mentions an area named Java, rich in agricultural products with many sacred buildings. The term Javanese refers to an area of Gendol Hill complex, which is part of the Kedu–Central Java region. This paper aims to 1) interpret the cultural landscape of the Gendol Hill complex, 2) reconstruct the spatial structure (layout), and its utilization as a settlement area for Javanese society in the 8th century. This paper interprets the Canggal Inscription and collates information about the potential of both biotic and non-biotic resources. Data processing is conducted through inductive–explanatory analysis. The results suggest that the Cultural Landscape of Gunung Wukir Temple was in a place protecting it from disaster. The complex was protected by Gendol Hills, acting as a barrier against volcanic eruptions from Mount Merapi. Gendol Hill complex was located in an environment that flourished with both biotic and non-biotic resources. The community cultivated its alluvial plains and established settlements in this area. The denuded structural hills were also perceived as sacred spaces to erect temples with natural resources close by such as andesite rocks available from rivers around the hills
Basement Characteristics of Jakarta Groundwater Basin Based on Satellite Gravimetry Data
Get PDFJakarta groundwater basin is one of the most developed basins in Indonesia as Jakarta city is located within the basin, with an elevation ranging from 0 to 1000 m above sea level. The study of the basement characteristics of groundwater basins still needs further study in the Jakarta Groundwater Basin. The objective of this study is to examine the basement characteristics of Jakarta Groundwater Basin by satellite gravimetry. Gravity forward models were constructed using Oasis Montaj and 2-D GM-SYS software for two north-south sections, A and B, and west-east section C-D. Regional anomalies in the study area with a value range of 36.7 to 53.2 mGal, while the residual anomaly values in the study area were in the range of -7.0 - 10.0 mGal. There are four rock formations based on forwarding modeling. Holocene Beach Ridge Deposit formation has a density of 2.0 gr/cc. The thickness of this formation is estimated to be around 10-20 meters. Late Pleistocene Alluvial fan has a density of about 2.2 gr/cc. The depth of this layer ranges from 10-50 meters. Early Pleistocene Formation, has a density of 2.35 gr/cc. The thickness of this formation is at a depth of 50-200 meters in the cross-section. The Tertiary Marine Sediment Formation is a basement of the Jakarta Groundwater Basin. This formation has a rock density of 2.45 gr/cc.