bluuebunny/crossref_metadata_2025_split huggingface dataset:
Variation of coastal resource potential in Tejakula District
Authors: Citra I P A , Purwanto I P A 
Published: November 2022

Abstract
This research was conducted in Tejakula District, Buleleng Regency with the aim of (1) describing the potential of coastal resources in Tejakula District, (2) analyzing the level of potential coastal resources in each coastal village in Tejakula District. This research uses descriptive design. Data were collected through observation, interview, and documentation techniques and then analyzed qualitatively. The results showed the highest potential of biological resources in the form of fish resources, coral reefs and turtles, non-biological resources in the form of salt ponds, artificial resources in the form of boats, and environmental services in the form of marine tourism including (dolphin attraction, snorkeling, and dive). Second, variations in the potential of coastal resources in Tejakula District are grouped into three. The potential of coastal resources with a high category is in Tejakula Village because coastal resources have been fully managed, especially the utilization of tourism potential, coastal resources with moderate potential namely in Bondalem Village, Les Village, and Penuktukan Village because coastal resources are still in management such as developing tourism potential, and coastal resources with low potential are found in Tembok, Sambirenteng, Julah, Sambiran, and Pacung Village because they have not developed tourism potential and only develop fisheries resources.
Estuary boundary based on waters surface salinity in cimandiri estuary and cisadane estuary, indonesia.
Authors: Octavia W D , Supriatna S , Saraswati R 
Published: November 2022

Abstract
Estuary is an exclusive system and have an important role but also have vulnerabilities that can threaten life in the estuary region, so it is necessary to have knowledge of estuarine boundaries so that conservation can be maintained. This study aims to analyze the boundaries of the Cimandiri Estuary and the Cisadane Estuary based on surface water salinity, and analyze the relationship of estuarine surface water salinity with rainfall, sea surface currents and tides in the Cimandiri Estuary and Cisadane Estuary. The variables used in this study are salinity, rainfall, sea surface currents, and tides. The research method use the Cimandiri Algorithm by processing OLI Landsat 8 Imagery in 2018 and 2019. The results of this study are estuary boundaries divided into 3 estuary boundary classes specifically Mexo-oligohaline (0.5-5 ‰), Mexo-mesohaline (5-18 ‰), and Mexo-polyhaline (18-30 ‰). Cimandiri’s salinity value is strongly affected by season, then by tides and last by the currents, it is because the Cimandiri Estuary has a deep waters. Meanwhile in the Cisadane Estuary, the salinity value is strongly influenced by season, then by the currents and tides, and also influenced by freshwater from land, it is because the Cisadane Estuary has a shallow water.
Adsorption of ammonium ions in aqueous solution using raw and treated peat soil
Authors: Yuliani G , Nandatamadini F , Widhiyatna D , Mollah M , Mutiara S , Setiabudi A 
Published: November 2022

Abstract
Peat exists in abundance in many parts of the world, but has low economic value. The presence of active functional groups, in the form of carboxyl and phenolic groups, makes peat an alternative sorbent having high porosity and ion exchange ability. Washing peat soil prior to adsorption has been reported to be effective in increasing its ion exchange capacity. In this study, the effect of peat washing using NaOH on its adsorption capacity for ammonium ions was investigated. The FTIR analysis indicated decreases in -OH absorption at 3300-3600 cm-1, C=O (carboxylate) at 1625 cm-1 and C-O at 1300-1000 cm-1 possibly due to the replacement of H+ by Na+ upon peat washing using NaOH. SEM analyses of peat samples showed a more homogeneous surface morphology upon washing. BET analysis results showed a reduction in surface area, pore size, and pore volume. However, the adsorption study conducted in batch mode indicated that the adsorption capacities of washed and raw peats were 28.08 mg/g and 14.48 mg/g, respectively. It can be concluded that washing peat soil using NaOH solution may alter its surface properties and may be beneficial in improving its adsorption capacity towards ammonium ions in aqueous solution.
Urban heat island phenomenon in majalengka regency
Authors: Sanad A , Kusratmoko E , Wibowo A 
Published: November 2022

Abstract
The Majalengka Regency considering by The Government of West Java Province is one of the priorities of infrastructure development to sustain the accelerate of development. The conversion function of agricultural land into non-agricultural or industrial will affect land surface temperature, which triggers the urban heat island phenomenon. The purpose of this study was to analyze the spatial and temporal distribution of urban heat island and the assosiation of land cover, building density, and vegetation greenness with land surface temperatures in Majalengka in 2013, 2016, and 2019. Variables used in this study were land cover, vegetation greenness, building density, and land surface temperature obtained from the processing of Landsat Image 8 are validating survey at 98 points selected by random sampling method. The results showed that the phenomenon of urban heat island dominates the north to the Majalengka Regency. The Areas with low land surface temperatures are found in areas with land cover in the form of built land, low greenness, and high building density. The southern of Majalengka Regency of the land surface temperature is getting lower with vegetation land cover, high vegetation greenness, and low building density. Low land surface temperature is associated with high vegetation greenness and low building density while the highest surface temperature is associated with built-up area with high building density. The difference in temperature between 2013-2019 is around 6°C with a reduction in vegetation area around 109 km2.
Application of remote sensing and gis to identify the vulnerability of ground-water pollution in topograhic karst
Authors: Prasetyo K , Yulinar  
Published: November 2022

Abstract
Karst or limestone is a landscape in the form of unique. Karst or limestone has sensitive properties and is easily dissolved in water so that the karst topography has a subsurface water system in the form of holes that are susceptible to degradation due to the very fast flow of water so that it is easy to pass water underground. The purpose of this study was to determine the level of vulnerability of karst underground water pollution based on remote sensing data and GIS in the Rengel-Tuban Indonesia karst region. This type of research is quantitative research. Data analysis techniques in this study used image interpretation and logistic regression tests. The researched result is known that Remote sensing imagery and GIS as a tool to identify the level of vulnerability of underground water pollution in the karst region. Utilization of remote sensing imagery and GIS is presented as information of vulnerability of underground water pollution, and the study showed that the average area of karst Rengel was classified as vulnerable to pollution. In conclusion that the average area study was classified as vulnerable to pollution, and the Rengel karst hills are in line with local levels of vulnerability and pollution
mapping build-up area density using normalized difference built-up index (ndbi) and urban index (ui) wetland in the city banjarmasin
Authors: Muhaimin M , Fitriani D , Adyatma S , Arisanty D 
Published: November 2022

Abstract
Density and undeveloped land can be identified using digital transformation through remote sensing data. This study aims to map the distribution of building densities with the Normalized Difference Built-Up Index (NDBI) and Urban Index (UI), analyze the comparison of building densities of the NDBI and UI methods, and analyze the relationship between the transformation of NDBI and UI on building densities in Banjarmasin City. The data used to obtain building density image Landsat 8 Oli Tirs. The method used to separate the built area and non-building area using digital classification. The area was developed from the results of the multispectral classification filtered with NDBI and UI transformation for the classification of the building density level. The results of this study indicate that building density has a positive relationship with the transformation of NDBI and UI because the high building density in the transformation of NDBI and UI has a high value. Non-built area and constructed land shows an NDBI accuracy of 91.4505% and 92.5359% accuracy of UI, there is a difference of 1.0854% greater accuracy UI. Overall accuracy exceeding 80% indicates very high accuracy for building density mapping.
Analysis of urban heat island and urban ecological quality based on remote sensing imagery transformation in semarang city
Authors: Kusumawardani K P , Hidayati I N 
Published: November 2022

Abstract
Urban physical and biotic heterogeneity phenomena that caused by the decrease of vegetation and the expansion of built-up land can influence the urban climate response. The increase of land surface temperature brings on the Urban Heat Island (UHI) phenomenon. Spectral resolution, temporal resolution, and the synoptic overview capability of remote sensing data are capable in urban study. Remote sensing imagery is able to extract the land surface temperature changes widely and simultaneously. The aims of this research are to identify UHI phenomenon and analyze the ecological condition in Semarang City using Landsat 7 ETM+ in 2002 and Landsat 8 OLI in 2019. Urban Thermal Field Variance Index (UTFVI) transformation is used to measure the intensity of UHI. Remote Sensing Ecological Index (RSEI) that based on principal component analysis transformation is used to analyze the urban ecological quality with the occurrence of UHI phenomenon. The results show that the land surface temperature mean value increase to 3,19°C so that some parts of Semarang occured UHI. The trend is also increased and stronger. It is consistent with the decrease of RSEI. The increase of temperature and UHI phenomenon during 2002-2019 impact on the degradation of urban ecological quality in Semarang City.
Spatial-temporal of the growth phase and rice varieties using sentinel-1a radar imagery in ciasem district, subang regency
Authors: Nurhuda A , Wibowo A , Kustiyo  
Published: November 2022

Abstract
Most Indonesians people consume rice as a staple food and monitoring of sufficient rice crop growth required for national food security. Remote sensing with Synthetic Aperture Radar (SAR) data could use to observe the growth and classification of agricultural plants. The purpose of this research is to analyze spatial-temporal patterns of the growth phase and rice varieties in Ciasem District, Subang Regency. The Sentinel-1A radar image used to align research objectives based on VH backscatter polarization value in the planting period of 2018-2019. Google Earth Engine and maximum likelihood classification method used to process Sentinel-1A image data. The results showed that the rice-growing phase characteristic resulted in a trend of average backscatter value, which increased in the vegetative phase to the maturation phase and decreasing again after the harvest phase. Temporal average backscatter values in the rice planting period I was higher than period II. The spatial pattern of rice growing phase on planting period I start from the north to south, and planting period II starts from the south to north. The spatial patterns of rice varieties in the first and second planting periods categorized as random with the dominance of Inpari 42, Ciherang, and Mekongga varieties.
The impact of tourism development on the changes of the household economy in ciwidey tourism area, bandung regency, west java
Authors: Setiadi A , Rizqihandari N , Setiadi H 
Published: November 2022

Abstract
Ciwidey Tourism Area is a tourism destination in the Province of West Java which has a rapid development. In 2007, the provincial government officially declared the area as the agropolitan region. It stimulated the fundamental impact on the household economy in the area. This study aims to elaborate on the spatial pattern of household economy alteration due to tourism penetration. It is a descriptive stud y that relies on primary data that comes from field observation and questionnaire - interview with local people. The study exercises spatial dan time series analysis to analyze the change of occupation and income of households between before and after the year 2007. The results showed that the development of tourism is situated at a distance of 2.5 km-5 km outside the core of the tourism area. It was marked by the development of tourism objects, tourism attractions, and secondary facilities. Such development resulted in changes in the type of household economy, from both the “unemployed” and “agricultural” to the “tourism” households. This change in household types was followed by an increase in population income, mostly around the tourism core.
The vantage point of geopolitics: capturing indonesia’s maritime axis
Authors: Fathiraini N , Darmawan W , Ma’mur T , Fauzi W I 
Published: November 2022

Abstract
After the East Asia Summit in 2014, the Indonesia Maritime Axis became a priority under Joko Widodo’s administration. The maritime development aspect once articulated in the Djuanda Declaration in 1957, however, during several periods of leadership, the government marginalized the Maritime realm and was more directed to encourage agricultural as well as inland centric development vigorously. Truly unfortunate, it became contrast with the fact that Indonesia, as an archipelagic country based on the United Nations Convention for the Law of the Sea (UNCLOS) in 1982, hibernated over periods to maritime development. This study examined Indonesia Maritime Axis policy from a geopolitics perspective in international relations and national interests. The research method utilized qualitative with a descriptive analysis approach. The main argument rest in a state which performed geopolitics in regional dynamics, prominently towards Indo-Asia-Pacific rim to achieve national interests. The United States and China tried to anchor down their influence over this vast and vibrant region while Indonesia seeks opportunities towards cooperation to increase economic growth. Furthermore, Indonesia firmly showcased a rising middle power, as well as an archipelagic country, which struggle to protect its maritime sovereignty.
The strategy of regional media in campaigning pollution control and damage of citarum river watershed in west java (a case study of the citarum harum program)
Authors: Zaenudin H , Komariah K S 
Published: November 2022

Abstract
It is a fact that the condition of the Citarum River is full of problems. The problems are about plastic waste, pollution of household waste, and industrial waste. To deal with the problems, the President intended to revitalize the Citarum River by establishing the Republic of Indonesia Presidential Regulation Number 15/2018 concerning the Acceleration of Pollution Control and Damage to the Citarum River watershed. The program is intently broadcasted through various mass media to raising people’s awareness of controlling pollution and damage of Citarum River watershed. It is the vital function of media to inform environmental insights and activate community actions (proper disposal of industrial and domestic wastes). By informing actual information, mass media can contribute to structuring social understanding and social-behaviour improvement. The present study employed a case study approach. The researchers focused on the deep-longitudinal aspects of Citarum Harum Program. The analysis was following stages; observation, data collection, analysis, and dissemination. The analysis was mainly based on interviews to reliable individuals ranging from mass media practitioner, government officials, activists, and scholars. The results shows that printed media, television, and radio have social responsibility to educate the society about the river protection. In addition, policies in several media are considered to be consistent in disseminating the messages and ideas as they also create innovations in structural, social, and cultural approaches.
Contribution of critical thinking in the disaster preparedness of geographic students
Authors: Raisa S , Maryani E , Ningrum E 
Published: November 2022

Abstract
Disaster Risk Reduction Efforts (PRB) continue to be built and addressed through various activities considering that Indonesia is a country that is prone to disasters. In the era of the Industrial Revolution 4.0, with an abundance of information The educational community as one of the important stakeholders Risk Reduction Efforts (PRB) were required to be critical of the information that was spread out including disaster information. However, students do not aware with the abundance of information available that is appropriate for the basis of disaster preparedness. Therefore the writing of this article aims to measure the level of critical thinking and its contribution to disaster preparedness, especially flooding, in geography education students. The research method chosen in this study is the Quantitative Survey. The results showed that the level of critical thinking and disaster preparedness of students included in the medium category. The results of the contribution of critical thinking to disaster preparedness showed the result of R square (R2) determination of 50.4%. This shows that critical thinking has an influence on student disaster preparedness. Therefore, it is time to think critically about information to be the focus in one of the efforts in disaster preparedness activities.
Integrated waste processing in pangandaran beach tourism area
Authors: Kastolani W , Darsiharjo  , Setiawan I , Supriatna U 
Published: November 2022

Abstract
Pangandaran Beach is one of the iconic tourist destinations in the province of West Java. This beach tourism area is a favorite of local tourists with a number of 3.9 million tourists at the end of 2018. The large number of tourist visits to Pangandaran Beach in addition to being economically profitable, also has a negative impact in the form of waste generation. Tourism activities produce organic waste in the form of hotel and restaurant food scraps and then inorganic waste such as plastic food wrappers, plastic bottles and others. Based on these problems in the research plan for three years, divided into three main focuses, namely in the first year is how integrated waste management for Pangandaran Beach tourism area. The focus of the second year research is the processing of waste from the food and beverage industry in Pangandaran Regency and in the third year is processing organic waste for freshwater fish feed. The research method used in the first year research is a descriptive method that aims to describe how waste processing has been done so far, community participation and how integrated waste management is in the Pangandaran Beach tourism area. Based on the results of the study, it was found that the processing of waste in the tourist area is still by collecting-transporting-dumping, the final disposal site (TPA) uses an open dumping system that is the garbage is disposed of without any treatment. Community participation in waste processing is in the medium category (score 56.5%) and integrated waste processing is still in the early stages of development.
Spatial analysis: overview of unfit for living in tanggamus regency-lampung
Authors: Miswar D , Sugiyanta I G , Yarmaidi  , Istiawati N F 
Published: November 2022

Abstract
This study aims to conduct spatial mapping to obtain data on the distribution of uninhabitable houses in Tanggamus Regency. Data collection was carried out by survey related to the location of the coordinates of the uninhabitable house and its conditions, literature study, interviews, and documentation supported by data from related agencies. Data analysis was performed using ArcGIs software and qualitative descriptive with a spatial approach. The results showed: the location of the uninhabitable houses in Tanggamus Regency, based on the coordinates of as many as 6,042 houses and the map of the distribution of houses unfit for habitation in each district. The conclusions in this study indicate that the map of the distribution of houses unfit for habitation in each sub-district can be used for regional development planning, especially in Tanggamus Regency.
Livelihood sustainability of small-scale fishermen in depok beach, special region of yogyakarta
Authors: Pratiwi M M , Susiloningtyas D , Susilowat M H D , Handayani T 
Published: November 2022

Abstract
Marine fisheries activities on the southern coast of Special Region of Yogyakarta province, especially in the Depok Beach area, has gradually developed. Small-scale fishermen as a group of people classified as poor rely on livelihood assets accessible by them. Sustainable Livelihood Approach (SLA) is used to enhance understanding of the livelihoods of the poor. This research aims to analyze the livelihood level of small-scale fishermen at Depok Beach in 2020. The methods used in this research are quantitative descriptive analysis to determine the level of sustainability and spatial analysis by dividing the study area into three radii, i.e. 0-500 meters, 500-1000 meters, 1000-1500 meters, and beyond 1500 meters from the coast. Fishers living in 0-500 meters, 500-1000 meters, 1000-1500 meters, and beyond 1500 meters from the coastline, in general, had a high level of assets, meaning that the natural resources (fish stocks) are not depleting, financial condition is sufficient, the infrastructure available is adequate, majority of fishers attended formal education and are members of fishing societies or another social group. Overall, based on the calculation of the average score, livelihood of fishermen in Depok Beach are considered sustainable.
Describing the impacts of the extreme weather event on plants communities in Cibodas Botanic Gardens
Authors: Hidayat I W 
Published: November 2022

Abstract
From November 30th to December 1st, 2017 has occurred extreme weather events in the Cibodas Botanic Gardens (CBG) and its surroundings. At that short moment, it has destructed many plant collections and tended to become an ecological disaster on a microscale. It has highly suspected that this happened due to the heavy rainfall and strong wind. This study aimed to analyze the volume of rain rate and wind speed conditions at pre-, on-, and post- those periods, compared to the circumstances from 2017 to June 2018, those impacts on the lost number of trees and shrubs, and to describe the CBG operator emergency response procedures. The rain rate and wind speed were inventoried monthly, but on those two days, they were inventoried hourly. The number of plant losses assessed by census analysis and the response procedures has been adjusted based on CBG ISO 9001:2015. A regression test was conducted to examine the correlation between the number of losses, rain rate, and wind speed. Results showed a maximum rain rate of 58.8 mm hour-1 and the highest wind speed up to 83.7 km hour-1 in those periods, which caused losses of 48 trees and five shrubs. The maximum wind speed was the main factor in the plant loss occurrence, where the correlation was strongly positive. However, the operator only required less than three days to manage the impacts by reporting, documentation, and inventorying the damages, cutting the collapsed trees, and cleaning and reorganizing the environment. This study has expected to provide an overview of how's CBG capability in addressing extreme weather impacts.