bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characterization of Na-P1 zeolite synthesized from pumice as low-cost materials and its ability for methylene blue adsorption
Authors: Prajaputra V , Abidin Z , Widiatmaka  , Suryaningtyas D T , Rizal H 
Published: December 2019

Abstract
Recently, many researchers have been applied zeolitic materials for dye wastewater treatment by adsorption method because of more practical and economical without requiring a lot of solvents. However, the presence of natural zeolite is limited and only available in a specific area. In this research, pumice stones containing the main components of silicate and aluminate were used as an alternative material to synthesize zeolite. The ability of pumice and zeolite was also tested for adsorbing one of cationic dyes, namely methylene blue (MB). Zeolites were synthesized through the hydrothermal method in high pH conditions and characterized by Fourier transform infrared (FT-IR) spectroscopy and X-ray diffraction (XRD). The characterization results revealed that the addition of an alkaline solution changed the molecular structure of pumice into Na-P1 zeolite and caused differences in dye adsorption capacity. The adsorption efficiency of pumice was only achieved 65.83% with the MB uptake as much as 5.89 mg/g at the MB concentration of 50 mg/L for 24 hours, while the Na-P1 zeolite was able to adsorb MB molecules almost 100% with the uptake capacity up to 9.12 mg/g.
Multi-dimensions urban resilience index for sustainable city
Authors: Narieswari L , Sitorus S R P , Hardjomidjojo H , K Putri E I 
Published: December 2019

Abstract
In 2030, more than 73% of Indonesia’s population is predicted to live in cities. Under that massive population concentration, urban problems are becoming more difficult and complex to deal with. Besides chronic pressures of the existing problems, when disasters occur, urban areas and their population are also more prone to be exposed to shocks, leading to increased vulnerability, uncertainty, and risks of the cities. This situation demands the communities and whole urban systems to develop better urban resilience. This paper describes our quantitative study in Semarang City that aims to build an index using secondary data by considering 5 dimensions: social, economic, infrastructure, institutional, and hazard and shows resilience level in scores from 0 – 1 where 0 representing very low and 1 the best. The results shows here are only 3 sub-districts that are at the level of high resilience (Semarang Selatan, Banyumanik, Semarang Tengah) and the infrastructure dimension is a very influencing factor. The index allows for equal spatial and temporal comparisons of several regions, which is important when it comes to conducting further studies on the regional dynamics and making priorities of which areas should be resilience-increased towards sustainable urban development.
Sensitivity analysis of ecosystem services especially food provisioning due to the dynamics of land use change in Bogor Regency, West Java, Indonesia
Authors: Munajati S L , Kartodihardjo H , Saleh M B , Nurwadjedi  
Published: December 2019

Abstract
Land use changes greatly affect the value of ecosystem services. This study aims to analyse the sensitivity of ecosystem services especially food provisioning, affected by land use changes in Bogor Regency. The method used is visual interpretation and manual digitization of Indonesian Topographic Map (RBI) and the SPOT-7 with a resolution of 1.5 meters. The sensitivity assessment of ecosystem services is carried out through analytical hierarchy process (AHP). The results of the study showed that there was a changing in land use of 8.31% in the period 2000 to 2017. Forests area to be the most significant changes contribute 1.86%. Changes in land use are influenced by regional development and population growth, so that conversion of land use occurs massively at some point. Regulatory and supply functions are the most sensitive elements of ecosystem services to land use changes. Conversion of water catchment area causes a decrease in soil infiltration capacity and triggers erosion. This phenomenon leads to land degradation and natural disasters.
The Effect of Tin Mining on Soil Damage in Pedindang Sub-Watershed, Central Bangka Regency
Authors: Rachman L M , Baskoro D P T , Bayu H H 
Published: December 2019

Abstract
The practice of tin mining, especially in the Pedindang Sub-Watershed, Central Bangka Regency, Bangka Belitung Province was not carried out carefully and protectively because it produced soil damage or land degradation. The purpose of this study was to examine soil properties, particularly soil physical properties, and soil damage in the Pedindang Sub-Watershed with various land uses, namely tin mining, forests, dryland agriculture and thicket shrubs-bushes, on various slope classes. The properties of the soil studied were the content of organic matter, sand, silt, clay; bulk density; porosity, and soil permeability. Compared to other land use (forest, dryland agriculture and shrubs) in the Pedindang Sub-Watershed area, tin mining land use show the worst soil properties. Soils in tin mining land use were degraded, has very low organic matter content; the lowest clay content; the highest soil density as indicated by high bulk density and low soil porosity; and the highest sand content so that it can be understood if it has the highest and very fast soil permeability.
Diversity of plant species and the presence of Invasive Alien Species (IAS) in the Sub-Montane Forest at Pakenjeng Region, Southern Part of Garut, West Java
Authors: Kusmana C , Suwandhi I 
Published: December 2019

Abstract
Plant species diversity is an important ecological characteristic, especially to observe the complexity of forest ecosystems. The research is carried out to elaborate on the species composition, species diversity and the forest structure, and to identify the presence of invasive alien species (IAS) in the sub-montane forests at the Pakenjeng region, the southern part of Garut, West Java. The vegetation survey method used was a stratified sampling technique with the transects and line plots as sampling units for inventorying the trees, forest regenerations, and ground cover. These data are further analyzed to obtain information on abundance, dominance, importance value index (IVI), species diversity and evenness. Based on the species composition, the forest formation was categorized as a primary sub-montane forest with high species diversity characterized by the presence of tree species such as Altingia excelsa, Lithocarpus sundaicus, Castanopsis spp. and Podocarpus spp. showing the curve of inversed-J for horizontal structure with A, B and C canopy layers. The species of Eupatorium inulifolium, Musa zebrina, Piper aduncum and Lantana camara are categorized as IAS.
Characteristics of pekarangan in organic settlement and planned settlement along Ciliwung River riparian, Bogor Municipality, Indonesia
Authors: Jesica J , Kaswanto R L , Arifin H S 
Published: December 2019

Abstract
Riparian is part of the river that contributes to ecosystem preservation. There are green spaces in riparian that have many functions. One of the greens spaces in riparian is pekarangan. The purpose of this paper is to show the result of analyse characteristics of pekarangan in the organic settlements and planned settlements along the Ciliwung River riparian. The study area consists of three riparian zones in two types of settlements, organic settlements and planned settlements, i.e. the upper part (Kelurahan Katulampa); the middle part (Kelurahan Babakan Pasar and Kelurahan Sempur); and the lower part (Kelurahan Kedunghalang). Characteristics of pekarangan were analysed through the approach of size and zoning of pekarangan; vertical and horizontal diversity of plants; plant biodiversity; and types of pekarangan utilization. The results showed that the orientation of organic settlements tends to turn away from the river, while planned settlements face the river. The organic settlements and planned settlements, both have small pekarangan (<120 m2). The pekarangan productivity average of the Shannon-Wiener index in organic settlements was 3.76, while planned settlements were 4.11. The result of the study of all sites are typology of pekarangan in organic settlement and planned settlement.
Water infrastructure development using water infrastructure and planning model
Authors: Taufik Isvan , Purwanto M J , Pramudya B , Saptomo S K 
Published: December 2019

Abstract
WEAP is one of the hydrological software in evaluating and planning the water balance of a region. The WEAP approach method operates with the basic principle of water balance and allows the creation of scenarios based on existing conditions to investigate the impact of policies or alternative assumptions in the use and availability of water in the future. The purpose of this study is to develop water infrastructure in the Ciliman watershed - the second largest watershed in Banten Province and a part of the Ciliman-Cibungur River Region with the main river length of 112.83 km, crossing the Lebak and Pandeglang Regencies. The types of data used in this study are secondary data including : (1) hydrological data at the year 1998 - 2015, (2) water use data (3) maps of the Ciliman watershed. The results of the analysis show that the scenario of dam development with 4 alternatives can reduce the number of water supply failures until the year 2036. In August and September, the water needs of Tanjung Lesung SEZ water requirements were only met (5.03% and 53.76%) and South Banten Airport (3.67% and 54.21%). The water needs of the Ciliman Irrigation can not be fulfilled in July to September. It only fulfilled 35.91%, 2.43% and 33.54%.
Application of linear programming (LP) for optimal use of raw water in Cidanau watershed, Banten
Authors: Waspodo R S B , Sahana M I 
Published: December 2019

Abstract
Cidanau watershed area has an important role in fulfilling water needs, especially for industrial, settlements (population), and agricultural needs. However, along with the increasing development of the Cilegon area, the need for clean water also increased. In 1984, the water demand for the Cilegon region for industrial and settlements was only 0.36 m3/second. But, in 1989 it increased to 1102 m3/second and in 2000 it was 2.200 m3/second. One of the ways to optimize the utilization of limited water resources while the community’s need for water is increasing was watershed management using linear programming (LP) method which supports optimal water distribution. Optimization discharge was carried out to determine water requirements. The optimal discharge for domestic needs was 16.50 liters/second to fulfill the water needs of the population of 47,519 people. The optimum discharge for the industrial sector was 27 liters/second with a total industry of 46 (small industries). When it was added with Krakatau Tirta Industri (KTI) discharge, the total industrial discharge became 1,527 liters/second. The optimum agricultural discharge with an area of 4,689.29 ha was 1,219 liters/second.
Mapping of tenure status of paddy field and their relation to rice farming
Authors: Munibah K , Barus B , Tjahjono B , Mandalika T 
Published: December 2019

Abstract
Some important government programs, such as Sustainable Agriculture Food Protection, in its implementation need to be supported by tenure status of paddy field map. High resolution satellite imagery is data source that can be used for mapping of that data. The rice is a staple food for Indonesian people, however the conversion of paddy field into built-up area increase due to population growth and economic activity. This study aims to map the tenure status of paddy field and rice farming. Mapping of the tenure status is based on paddy fields parcel resulting from visual interpretation of high-resolution satellite imagery and field verification. The tenure status of paddy fields were obtained from fieldwork with the census method on each parcel. Analysis of rice farming was assessed based on the area and tenure status of paddy fields. The results showed that the mapping accuracy of the parcel number was 96.72%. The spatial pattern of parcel based on owner and sharecropping categories show all have cluster patterns (NNI <1). Rice farming of paddy managed by owner or sharecropping are both still feasible (R/C ratio> 1) and the highest profit is >2 hectare, but those managed by owner is more profitable (R2 = 0.71).
Impact of ASEAN-China free trade agreement in CO2 emission of marine transportation
Authors: Mulatsih S 
Published: December 2019

Abstract
World Summit and Sustainable Development (WSSD) agreed to link international trade with the environment from two aspects to realize sustainable development, namely, mutual support between trade, environment and development; and mutually beneficial between the multilateral trading system and multilateral environmental agreements. In the ASEAN-China Free Trade Agreement (ACFTA) that has been running since 2010, research was mostly focused on trade aspect. This study aims to evaluate CO2 emission from the marine transportation of trade, before and during ACFTA. The data was taken from the UNCTADSTAT, WITS, CEPII. By using the IATA standard of CO2 emissions i.e. 985.97g/ton-km from air transport, and 9.53g/ton-km of sea transport, the results showed that there was an increase 1.6 time in CO2 emissions from ASEAN-China trade transportation from period 2001-2009 (before ACFTA 2009) to period 2010-2018 during ACFTA.
Anatomical feature of royal palm leaf sheath
Authors: Adzkia U , Nugroho N , Karlinasari L 
Published: December 2019

Abstract
Royal palm (Roystonea regia) is an ornamental plant species which are copiously planted in many landscapes in the urban area. At the end of their life cycle, the palm fall naturally and it becomes waste. The purpose of this study was to evaluate the anatomical characteristics of both macroscopic and microscopic features to explore some potential uses. This study found that the length average of the leaf sheath of royal palm was 161.60 cm with the width of 53.47 cm, and the thickness was about 3.54 mm which was decreasing from the center or core to the edge. The percentage of vascular bundle was increasing from edge to core at the width-radial direction and was followed by the increasing of diameter of vascular bundle toward core of the leaf sheath. The type of vascular bundle was type I with the majority component of the vascular bundle at the positon in the center part in the leaf sheath cell structure. Based on its properties the leaf sheath has the potential to be used as the particle component for composite boards.
Soil and regional characteristics of paddy field in Ngoro Sub- district, Mojokerto, Indonesia: Understanding Land Use Change
Authors: Fakhiroh Z , Mulya S P , Suryaningtyas D T , Mulyanto B 
Published: December 2019

Abstract
The Ngoro sub-district has an extensive and productive agricultural land. The rice production of the studied area formerly was 6.02 ton MDG/ha, but recently only 0.70 ton MDG/ha. The study aims to characterize the soil and regional aspects of the studied area. The study was conducted in three villages: Sedati, Kembangsri and Candiharjo. There were three sample points determined based on differences in depth used for physical and chemical analysis of soil. Based on the laboratory analysis, the soils were considered as fertile and there were no problems in terms of physics or soil chemistry. Problems that can be identified were regional aspects. Based on the analysis of the alignment of land use with the Regional Spatial Plan (RTRW) shows that 39.8% were aligned, 59.4% transitions, and 0.8% were out of alignment. Although inconsistency was very small, what needs to be considered is the transition. Transition is land whose use is still possible to be adjusted to the RTRW. The area of transitional land can be indicated as an opportunity for changes in current land use due to adjusting to the RTRW. The agricultural sector is the widest sector that has the opportunity to convert into industry and settlements. High land values due to adequate infrastructure also trigger changes in land use.
Utilization of geothermal drill cutting into bricks and concrete roads for reducing drilling waste
Authors: Hidajat R A , Utomo S W , Garniwa I , Karuniasa M 
Published: December 2019

Abstract
In the process of geothermal power plants, it is necessary to drill wells to take hot steam from inside the earth to rotate the power plant turbines. In its operation, these steam wells need to be maintained through workover activities. From drilling and workover activities resulting in drill cutting which becomes a problem because it cannot be disposed into the environment. In one drilling campaign program, 200-300 tons of drill cutting were produced which could not be disposed into the environment. For this reason, the best way to manage drill cutting waste is to use it for its own needs, so that the volume of waste is reduced. Based on the results of the study, the appropriate use of drill cutting is to use it as raw material for making bricks and concrete roads, because the processing is low cost, absorbs quite a lot of local manpower and the results can be used for internal purposes such as buildings, roads, drainage, and other infrastructure projects, so that economic, social and environmental benefits can be obtained at the same time. The drill cutting processing method is very simple starting with the drying process by drying it to reduce the water content, then drill cutting that has been dried mixed with cement in a certain formula, then printed into bricks and concrete roads which are then dried for the hardening process. Based on the use of drill cutting in the Gunung Salak geothermal power plant, this drill cutting utilization method has succeeded in reducing drill cutting to 100% so that it is not a problem for the environment. During the running time monitoring is done by monitoring wells, especially along concrete roads and the results show good parameters. From the results of the strength test, the brick and concrete roads produced from drill cutting have a strength that meets Indonesia National Standards (SNI).
Vegetative growth of vanilla cuttings after addition of weed clippings mulch under 2 climatic condition, wet and dry seasons
Authors: Adiputra I G K , Winaja I W , Sumarya I M 
Published: December 2019

Abstract
Experiments were performed to determine the effect of allelochemicals released by weed clipping on the growth of vanilla cuttings. The objective of these experiments was to find out safe plant material for mulching vanilla plantation. The first experiment was conducted in the wet season, where two nodes cuttings were transplanted into 5 groups of pots containing topsoil and mulched with grass (G), fern (F), taro (T), dry leaf (DL) and without mulch as control cuttings (C). The second experiment was under dry season but using a similar procedure like that in the first experiment except dry leaf was replaced with coconut husk (CH). These two experiments were using 8 replicates and grown in a shaded greenhouse. Phenolic compounds in weed clippings were examined using the Folin-Ciocalteu method. This study found that fern and taro clipping decreased soil pH, delayed emergence of new root and bud burst in vanilla cutting. By contrast, grass clipping, dry leaf and coconut husk did not decrease soil pH and did not delay root emergence and bud burst. The growth rate of the new stem in grass added plant was 1.4 folds relative control but only 0.4 fold in taro added plants. It is concluded that vanilla plant resistant to phenolic compound released by grass clipping, but susceptible to phenolic compound released by taro clipping.
Building energy efficiency and conservation on air conditioning loads (Case study: residential and building development information center in Makassar)
Authors: Sandi R Y , Garniwa I , Panjaitan T H , Pratiwi D M 
Published: December 2019

Abstract
Environmental problems are a concern of the world today, considering the exploitation of energy sources from natural resources such as coal and oil causing damage to the environment, humans and ecosystems. Sustainable development programs are strategies to meet current human needs without reducing future needs. Reducing energy consumption is one that can be done in various ways to meet sustainable development programs. 50% of energy consumption is dominated by the building sector, while 50% of building energy consumption is charged by air conditioning. Conservation and energy efficiency of the building load is carried out to achieve the target of potential energy savings of 10-30%. This study aims to analyze the air conditioning loads and conservation and efficiency strategies in the building of Information and Settlement Information Center in Makassar with a target of 10-30% energy savings. This method uses thermal balance analysis by calculating heat energy from external, internal and human heat that will be charged by AC (Air Conditioner). The Conservation Strategy by planning microclimate control with vegetation and the use of materials in building envelopes that can reduce heat and efficiency strategies on thermal comfort by raising the maximum temperature from the comfort standard can save energy from 17-19% energy. the burden on the building sector to reduce the total overall energy consumption of 8-9%.
Corrosion of carbon steel in synthetic freshwater for water distribution systems
Authors: Royani A , Prifiharni S , Priyotomo G , Triwardono J , Sundjono  
Published: December 2019

Abstract
Corrosion is one of the most common problems in water distribution systems. The purpose of this research is to investigate the corrosion rate of carbon steel in synthetic freshwater. The influence of a variety of time exposure that represents the actual conditions in practice was performed. Research conducted by weight loss methods using immersion test. The parameters of water quality were measured by using a multimeter portable (Hach HQ40d). From the experiments obtained that the corrosion rate of carbon steel in freshwater ranged between 0.41 - 0.76 mpy. The results of this study are expected as a first step, as input for prevention, to prevent leakage flow and pipe due to corrosion by the life that has been designed.
Daily behavior Sumatran Rhinoceros (Dicerorhinos sumatrensis) in Sumatran Rhino sanctuary Way Kambas National Park
Authors: Awaliah A T S , Dewi B S , Winarno G D , Harianto S P , Koike S , Tokita N 
Published: December 2019

Abstract
The Sumatran rhino is one of Indonesia’s endemic species. The decreasing number of its population made the sanctuary project become more important to maintain the population’s existence. Sumatran Rhino Sanctuary is one of the breeding projects to keep the existence of Sumatran rhinoceros. For successful management in a sanctuary, it is necessary to understand how wildlife daily behavior so it can be adjusted with any management steps that will be applied. The purpose of this research is to understand and to analyze the daily behavior of Sumatran rhinoceros in Sumatran Rhino Sanctuary at Way Kambas National Park. This research was conducted in July 2017. The data was collected by using Focal Animal Sampling and was analyzed with quantitative descriptive technique. The result showed that Sumatran rhinoceros behavior in the Sumatran Rhino Sanctuary was not significantly different from their natural behavior. The dominant behavior in the morning was feeding and at noon was resting, while the moving behavior constantly occurred between that behavior.