bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Urban Expansion Intensity on Urban Ecological Status Utilizing Remote Sensing and GIS: A Study of Semarang-Indonesia
Authors: Indrawati Like , Sigit Heru Murti B S , Rachmawati Rini , Aji Dwi Setyo 
Published: March 2020

Abstract
The rapid urban expansion will drive land-use conversion and cause substantial environmental and ecological impacts. The ability of remote sensing to record spatial and temporal data on the land surface with complete coverage has been proven effective for recognizing spatiotemporal changes in the regional eco-environment quickly. This study utilized Landsat TM / ETM + and Landsat-8 OLI remote sensing data to assess the effect of urban expansion intensity on the urban ecological status with the study area in Semarang, Indonesia. The method to measure urban expansion uses the urban expansion intensity index and to assess the urban ecological status using an integrated ecological index (IEI). The IEI generated from four parameters which include the degree of greenness (i.e. the soil adjusted vegetation index, SAVI), the moisture degree (i.e. the normalized difference moisture index, NDMI), dryness degree (i.e. the normalized difference soil index, NDSI) and built-up aggregation degree (i.e. the normalized difference built-up index, NDBI). Principal component analysis (PCA) is used to compress the four indicators to construct the index of ecological status and Pearson correlation analysis was used to determine the effect of urban expansion intensity on urban ecological status. The result showed that the urban land area increased by 38.98 km2 with an average expansion area of 3.9 km2 y-1 from 2005 to 2015. The index of urban expansion intensity during 2011-2015 increased about 2.1 times from 2005-2011. The pattern of deteriorating urban ecological status of the city of Semarang spreading towards the west, south, southeast, and east. The lowest integrated ecological index is in the central and northern parts of the city of Semarang. The extent of good and excellent urban ecological status continues to decline in a decade, on the contrary, the urban ecological status of poor and extremely poor increased. The negative linear relationship of the index of urban expansion intensity and urban ecological status shows that the intensity of urban expansion influences the urban ecological status in Semarang city.
Climate-based crop pattern determination using Standard Precipitation Index (SPI) and the Oldeman classification in Sangiran Site
Authors: Ahmada Benarifo , Rahmah Cahya Nur , Larasati Lia Amellya , Muchlis Luthfi , Qonita Maryam , Khoiruluswati Nur Medisyanning , Rohmah Siti , Karunia Rahayu Theresia Dhina , Nurjani Emilya 
Published: March 2020

Abstract
Sangiran Site is dominated by rainfed field. Climate parameters, especially rain intensity affects crop patterns. Farmers strongly depend on rain intensity to support productivity thus they need climate-based crop patterns. Sangiran Site is prone to drought hazard since the region has a limited access to groundwater, which is henced by deep well in the region. Drought becomes the main threat to agriculture within Sangiran. This study aims to analyse meteorological drought and crop pattern determination using the SPI and the Oldeman classification respectively. Rainfall data is derived from multi temporal CHIRPS data. A monthly time series with thirty consecutive years (1988–2017) was used to calculate the annual SPI. The annual SPI help to determine crop patterns which is suitable for the region. The results of the study show that angiran Site has monsoonal rainfall with one peak of dry season, and one peak of wet season. Rainfed field is at the highest risk when drought lasts for above four months. Climate based crop patterns with the Oldeman classification indicate that Sangiran Site is classified into type C2 which is adequate for two times palawija crops and one time paddy crops.
Temporal analysis of net radiation in the metropolitan area of San Luis Potosí - México using landsat 5 and 8 satellite images
Authors: Tristan A C , Ortiz J C M , Ovalle A G C , Cárdenas O R , Putri R F 
Published: March 2020

Abstract
The San Luis Potosí Valley is a basin situated in the municipalities of San Luis Potosí and Soledad de Graciano Sánchez belonging to the San Luis Potosí State and which make up the metropolitan area. This state is located in the north-central zone of México; it has a territorial extension of 64,165 m2 that represents 3.12% of the national territory. It is bounded to the north by the states of Coahuila, Nuevo Leon and Tamaulipas; to the south by Guanajuato, Queretaro and Hidalgo; to the east by Veracruz and to the west by Zacatecas and Jalisco. The analysis of the radiation capture phenomenon was carried out in the San Luis Potosí Metropolitan Area (ZMSLP). The study area is located between latitudes 22° 20′ 00″ and 22° 02′ 00″ north and longitudes 101° 12′ 00″ and 100° 44′ 00″ west. Net radiation is the phenomenon in which radiation fluxes interact between atmosphere and the earth’s surface. This phenomenon leads to processes such as evapotranspiration and photosynthesis. The net radiation analysis can be performed by three methods: (a) by using radiation monitoring stations, (b) by statistical models using data from meteorological stations such as temperature and relative humidity, and (c) by using satellite imagery. Since satellite images offer the possibility of analyzing large tracts of land, this method has been chosen to carry out the study using two images per year, one for the dry season and one for the rainy season between 1990 and 2017. The results show a considerable reduction in net radiation between the study periods, possibly due to the metropolitan area growth that impacts on the environment and therefore to the processes mentioned above.
Household waste management in Sukoharjo Village, Ngaglik District, Sleman Regency, Yogyakarta Special Region
Authors: Prakoso B S E , Pamungkas G S , Yusari T 
Published: March 2020

Abstract
Waste is an item that is considered to be unused and disposed of by the previous owner / user, but actually from the dumped part of the waste it can still be used if managed with the right procedure. The problem faced today is handling waste without going through the right management process. The community disposed of all the waste produced through the officers, buried in the garden or disposed of it wildly. This is found in Sleman Regency in general and in Sukoharjo Village specifically. This study aims to find out the characteristics of the waste management community in Sukoharjo Village; explain waste management in Sukoharjo Village; and examine the differences in waste management by the community in Sukoharjo Indah Housing with Banjarsari Hamlet . The method used in this study is a survey method. Survey is an investigation by using questionnaires for collecting data. Data collection was carried out by observation and interview of 76 respondents. The results, waste management model differences in the two regions due to the differences in household characteristics, such as income level and the land ownership to burn trash. On the other hand, the trash also requires management to avoid direct way disposed to landfill, by making use reduction, reuse, and recycling. However, waste management in both areas is reach the phase of reduction. This is due to the lack of socialization of waste management in the two regions, especially in Banjarsari Hamlet RT 06 surveyed had never held socialization.
Solar suitability map for office buildings using integration of remote sensing and Geographical Information System (GIS)
Authors: Omar R C , Wahab W A , Putri R F , Roslan R , Baharuddin I N Z 
Published: March 2020

Abstract
The rapid growth and urbanization of metropolitan regions has resulted to greenhouse gasses and global warming. The primary anthropogenic greenhouse gas emissions are coal dioxide, CO2, which is produced by natural operations such as cement manufacturing, deforestation and combustion of fossil fuels. This could have a major, damaging impact on human well-being. Energy requirements are anticipated to raise by a ratio of 1.5 to 3.0 by 2050, leading to an ever-increasing rise in carbon dioxide emissions. As rising carbon emissions have become a growing issue, there is a need to reduce carbon emissions. Many countries in the world are aiming at increasing the use of renewable energies and improving energy efficiency in urban and rural areas while utilizing the economic growth potential of the low-carbon sector. Among renewable energy sources such as wind and solar energy, solar energy is one of the oldest, cleanest, and most reliable renewable energy sources. Over the years, numerous methods for estimating solar radiation on a horizontal plane have been developed. In this study, the satellite dataset with the aid of GIS technology was used to generate solar suitability maps for the study area. With the integration of satellite images, spatial datasets, and GIS tools, the best location to set up solar collectors such as photovoltaic and concentrated solar power can be determined.
Agriculture development of Lampung Province based on agropolitan zonation
Authors: Rahmah C N , Purnomo A D , Amalia R D , Putri R F 
Published: March 2020

Abstract
Lampung Province is one of provinces in Indonesia which has a huge agriculture potential. Lampung’s sectoral contribution to gross domestic product (GDP) is predominantly from agriculture sector which makes up to 30% of the total Lampung GDP in 2017. The high agricultural contribution supports Lampung to surpass national economic growth in 2011 – 2017. Lampung is one of Indonesia’s major producer of a wide variety of agricultural products and commodities which include palm oil, cassava, rice, and chili pepper. However, the agriculture potential is not managed properly, thus agriculture sector shows a declining trend on Lampung regional GDP. This research aims to determine zonation of agropolitan area to promote agriculture development in Lampung Province. We use quantitative method by retrieving secondary data of GDP, agriculture commodities, and road map derived from Statistics of Lampung Province and Open Street Map (OSM) respectively. Analysis of the GDP data using Location Quotient (LQ) and Krugman Specialization Index (SI), and analysis of agropolitan zonation using geographic information system (GIS). The result indicates that agriculture development using agropolitan zonation is strongly affected by the percentage of agriculture shares on GDP and the distribution of road network across Lampung Province.
Nitrogen presence diagnosis in the Media Luna water spring, Rioverde-Cd. Fernández, San Luis Potosí, México
Authors: Pérez L A , Tristán A C , Barragán M L , Ovalle A G C , Putri R F 
Published: March 2020

Abstract
Potential water pollution not only changes water quality, it also threatens human health, economic development and social prosperity. This is the reason why it was carried out the analysis of La Media Luna water spring and the surrounding soil by means of a sample. The water spring is located in the municipalities of Rioverde and Cd. Fernandez belonging to the Middle Zone of the San Luis Potosi State, Mexico. The location coordinates are as follows (393791.987 E, 2417785.435 N). Water and soil samples were taken at a depth of 15 to 30 cm at each km of the canals to the north and south from the centre of the water spring, in which the nitrogen concentration was analysed by means of a UV-visible spectrophotometer. The water sampling evaluation was supplemented using geospatial techniques to observe the spread behavior and the dispersion of ammoniacal nitrogen, nitrates, pH and electrical conductivity. The objective of this research project was to identify the nitrogen concentration in the form of ammoniacal nitrogen and nitrate in order to know the impact of anthropogenic activities, the contributions of agrochemicals and fertilizers, and their possible consequences to the water spring.
Differences in adolescent knowledge about Generation Planning (GenRe) based on the characteristics of adolescents in the Ngepring Family Planning Village
Authors: Budiman L S , Listyaningsih U 
Published: March 2020

Abstract
Adolescent reproductive health in Indonesia so far still has problems that need to be addressed. The high birth rate of the age group of 15-19 years shows the low understanding of adolescents about reproductive health regarding family planning. Concerning adolescent behaviour such as early marriage trends, premarital sex, and drug abuse encourage the National Population and Family Planning Agency to implement Generation Planning (GenRe) Program to prepare family life for adolescents. The very diverse characteristics of adolescents in the Ngepring Family Planning Village lead to the assumption that it will lead to differences in adolescent knowledge about GenRe. This study aims to determine differences in adolescent knowledge about GenRe based on the characteristics of adolescents in Ngepring. Methods of data collection through interviews 123 adolescents with questionnaires. The results of the interviews were processed by parametric difference test using Independent Samples T-Test and One-Way ANOVA with SPSS. The variable of GenRe knowledge that is most affected by the characteristics is knowledge of Maturing Marriage Age, Three Basic Risks of Adolescent Reproductive Health and Small, Happy, Prosperous Family. This raises assumption that delivery of information needs to pay attention to the characteristics so that it is right on target.
Hydrochemistry temporal variation of Anjani Underground River, Jonggrangan Karst, Java Island, Indonesia
Authors: Pratama A D , Adji T N , Dwiputra D S 
Published: March 2020

Abstract
Anjani underground river was one of the biggest water resource in Jonggrangan Karst. The objective of this research was to describe hydrochemical temporal variation which was expected to assist in defining the aquifer conditions that recharge Anjani underground river in more detail. Sampling was carried out for one year covering dry and wet seasons, as well as the flood events. The hydrochemical analysis was conducted based on dissolved major ion concentration and physicochemical properties. In addition, SIcalcite and log PCO2 were calculated to understand the temporal variation of aggressiveness on calcite mineral. The results showed that all water samples performed HCO3-Ca type. The chemical constituent in water varied temporally which showed high during dry season and decreased during wet season. The high chemical constituent during dry season was caused by the domination of slow-flow (diffuse) so the water had a longer residence time in aquifer, allowing water-rock interaction to be more intensive. Meanwhile, the low dissolved constituent during wet season was caused by input from quick-flow that changed water-rock interaction into dilution by precipitation process. Generally, all water samples was saturated with respect to calcite, except during flood events. One of the factors that affected this condition was CO2 supply from the allogenic river that allowed the dissolution process to be more intensive.
The effects of hydrodynamic process and mangrove ecosystem on sedimentation rate in Kendal coastal area, Indonesia
Authors: Risanti A A , Marfai M A 
Published: March 2020

Abstract
The Coastal Area of Kendal Regency is subjected to continually changing morphodynamic processes. The density of mangroves contributes to the extent of accretion, sediment distribution, and high surface elevation. The study aimed to identify the effects of hydrodynamics on sedimentation, calculate the sedimentation rate, and analyze the significance of mangrove ecosystems in shaping this rate. Located on the west side of Bodri River, the research area includes a mangrove ecosystem directly facing the open water. This quantitative research involved analysis and validation of hydrodynamic parameters, quantification of sedimentation rate, identification of mangrove species, and calculation of the Importance Value Index (IVI) of mangrove at each growth stage. Parameters in November-February represented intensive hydrodynamic processes with the highest monthly average detected in February, meaning that sediment movement is also the most intensive in this month. The lowest sedimentation rate was 0.1501 mg/cm2/day, while the highest was 23.4938 mg/cm2/day. Rhizophora apiculata and Avicennia alba were the two mangrove species growing in the area. A. alba had the highest relative dominance score in the community, as indicated by its IVI. Mangrove density and sedimentation rate showed a directly proportional relationship in Plot 3 at two growth stages, namely, sapling and seedling.
The potential of delta ecosystem in North Coast of Java in reducing CO2 emissions
Authors: Kusumaningrum P B , Haryono E 
Published: March 2020

Abstract
Global warming causes more carbon dioxide (CO2) emissions. The mangrove forest is one of the world’s largest carbon sinks, as it is capable of storing and absorbing CO2 more than other forests. This research aims to determine carbon storage and CO2 sequestration at various zones of mangrove forests on the Wulan Delta, i.e. pond, river, and coastal zone, also determine the potential of delta ecosystem in North Coast of Java in reducing CO2 emissions with Wulan Delta as the sample. Systematic and non-destructive sampling method was used by measuring the Diameter at Height Breast (DBH) of mangrove trees with a diameter of >5 cm inside plot areas of 10 m x 10 m each, and the measurement result was then calculated based on an allometric equation. The mangrove forest of Wulan Delta has the above-ground of carbon density 245.578 ton C/ha, root carbon density of 100.778 ton C/ha, and soil carbon density of 42,991.169 ton C/ha. It sums up to the total carbon storage of 9,171,845.27 ton C and CO2 sequestration of 33,660,672.12 ton CO2 with an annual sequestration value of 1,530,030.55 tons CO2/year. The CO2 sequstration results are then compared with the delta in North Coast of Java with extrapolation method. The results obtained that Delta in North Coast of Java can absorb CO2 national emissions in 2018 by 3.416x10−6 CO2/year.
Estimation of suspended sediment concentrations in the Rhine River using Landsat Satellite Images
Authors: Sutari C A T , Van der Perk M , Middelkoop H 
Published: March 2020

AbstractThe traditional methods for measuring water quality and suspended sediment concentrations (SSC) are time-consuming and often do not give the spatial and temporal detail needed for assessment of the water quality and sediment transport. The determination of the suspended sediment concentrations using remote sensing through the main channel and tributaries of Rhine River can provide valuable information to assess the spatial and temporal of the suspended sediment. The main objective of this study is to estimate the suspended sediment concentrations (SSC) using Landsat satellite images. This study developed a method of quantifying SSC based on Landsat imagery and corresponding SSC data from the International Commission for the Protection of the Rhine (IKSR) and Dutch Rijkswaterstaat from 1995 to 2016. The model was built using the ratio of logarithmic transformation of a red/green band and logarithmic transformation of SSC based onin-situsampling measurements. The SSC model works well and shows satisfactory performance. Landsat satellites (Thematic Mapper (TM), Multi-Spectral Scanner (MSS), Enhanced Thematic Mapper (ETM), Operational Land Imager (OLI)) explained an acceptable result accuracy.
Slope stability analysis using Universal Distinct Element Code (UDEC) method
Authors: Roslan R , Omar R C , Putri R F , Wahab W A , Baharuddin I N Z , Jaafar R 
Published: March 2020

Abstract
Slope stability analysis was conducted using the Universal Distinct Element Code (UDEC) technique in this research. This technique stimulates the spread of stress waves in the jointed rock mass owing to dynamic loading caused by the blast. Simulation is a vital component of the slope stability analysis, as it generates a model called discontinuum capable of simulating the movement of fragments owing to the burst of production. Besides, the discontinuous codes used in this analysis may duplicate the entire method of fragmentation of the rock from fracture to fragment throw. This discontinuous analysis can also simulate joints and porosity attributes in a rock mass.
Landslide Susceptibility Zone using Frequency Ratio Method in Karangkobar Catchment, Merawu Watershed, Banjarnegara District, Central Java Province
Authors: Radjah V Y G , Suryatmojo H , Ngadisih  
Published: March 2020

Abstract
Karangkobar catchment is located in the upstream area of Merawu watershed, classified as one of the most critical watershed in Indonesia. Land use change from forested area to agricultural land has changed the hydrological process in the catchment. A huge landslide disaster has occurred at the end of 2014 and causing 95 people deaths. It is important to have a landslide susceptibility map for disaster risk mitigation in this area. The purpose of this study is to apply the frequency ratio method to analysis the landslide susceptibility in Karangkobar catchment. Actual landslide data is obtained from the results of field survey. Frequency ratio method is used to assess the landslide susceptibility using 70% of total landslides data while 30% is used for model validation. The results shown that the highest FR value is found in the distance from the road at range of 0-25 m, distance from the river at range of 100-125 m, flat curvature and garden land use. The broad percentage of low landslide susceptibility is 38%. moderate susceptibility is 48% and high susceptibility is 14%. The results of validation for landslide susceptibility showed that the resulting susceptibility model is very effective for assessing the landslide susceptibility.
Livelihood strategies of farmer households in the face of changing weather patterns: a case study from Sangiran Region
Authors: Budiman L S , Adlina L , Aisyah D A N , Irfan M , Diadasa N Q , Zain N A , Aliyya R R , Capilano A J , Rofi A 
Published: March 2020

Abstract
Java Island is the region where agriculture plays an important role in the economic activity of Indonesia. Nevertheless, the changing weather pattern in Sangiran has affect the cropping patterns, time of planting, production, and quality of the agriculture. Climate change affects the agricultural production loss between 5 - 20 %, while the long-term impact is the absence of farmers working on dry land. This sort of thing recently happens in Sangiran region which is a granary in Central Java because of the adaptation of the community. The purpose of this study was to determine the household livelihood strategies of farmers in the face a changing weather pattern in the Sangiran region. This research uses descriptive quantitative and qualitative approaches (mix method) in Sangiran region with multi-stage random sampling technique. The results of the research show that farmer households in Sangiran region face a changing weather pattern. Coping strategies that the farmers do while their facing changes in rainfall patterns are selling assets or property, money loan, reduce daily consumption, and change jobs. Strategies that the farmer households do to cope with the loss of assets are applying for a loan to a financial institution and working for someone else.