bluuebunny/crossref_metadata_2025 huggingface dataset:
K-Nearest Neighbor method for detecting egg quality conditions using Raspberry Pi
Authors: Ahsan M , Nugraha D A , Yunus A , Budianto A E , Setyaningsih W , Firniawan A , Susilowati M
Published: April 2021

Food production in Indonesia is very strong and constrained, such as rice, corn, eggs and so on. Eggs that are consumed every day by Indonesian citizens, many consumers of egg food are not alert to the condition or condition of the eggs, whether they are feasible or expired. There are many studies related to the nature of eggs, egg quality and others, in part there is no modeling tool for detecting egg quality conditions based on raspberry pi using the K-Nearest Neighbor method which can be used to see good or bad eggs. In this study, the Raspberry Pi was used as the main component with the aid of a camera as an image capture on eggs using training data of 100 egg samples consisting of 50 good eggs and 50 bad eggs in order to get maximum accuracy. With the help of 2 led as a light source and the software uses the Python language. The purpose of this study was to obtain the expected accuracy by collecting 20 eggs randomly to get a percentage (17/20) * 100 = 85%.
Geogebra application for quadratic functions
Authors: Sumartini T S , Maryati I
Published: April 2021

The purpose of this study is to analyze the use of geogebra applications in mathematics learning on quadratic function material. In addition, it needs to be seen how respondents’ conceptual and procedural understanding of the quadratic function material. This research uses quasi-experimental by taking a sample of 80 respondents. Samples were given treatment with the use of geogebra applications in mathematics learning with quadratic function material. Data analysis was performed using SPSS. The results showed that the use of geogebraic applications was effective in developing respondents’ conceptual and procedural understanding of quadratic function material.
Preliminary study as an exploration activity for estimating insitu coal density using the correlation of seismic downhole and geology drilling
Authors: Agustina R D , Pazha H , Rasyid F A
Published: April 2021

The need for coal is increasing every year so that coal exploration activities need to be done to maintain the availability of these materials. Exploration activities generally use the correlation of geological method (analysis) and direct measurement using the geophysical method. One of the geophysical methods used is the downhole seismic method, to determine the quality of coal hardness through several seismic parameters, namely variations in the value of the initial wave velocity (Vp & Vs) and the wave travel time (Tp & Ts). This study aims to avoid mining land clearing and environmental destruction that are misplaced. This exploration activity is carried out at six measurement points. The results showed that the density of coal in the range 1.42 - 2.05 g/cm3, while coal that is feasible to be mined has a density of 1.81 - 2.05 g/cm3 with very soft rock to very hard rock classification.
Exploration of student’s understanding of distance and displacement concept
Authors: Jufriadi A , Kusairi S , Sutopo S
Published: April 2021

This study aims to explore students’ understanding of the kinematics, especially in the concepts of distance and displacement. This survey research involved 21 first-year physics students that registered in the odd semester of the 2019-2020 Physics Education Program at Universitas Kanjuruhan Malang. Justification of students’ understanding of kinematics concept is done by analyzing their responses to multiple choice questions, evaluating their arguments in answering the test items, and also through a series of individual interviews. With a mixed-method approach, the data are analyzed quantitatively and simultaneously as well as qualitatively. The result shows that about 42,8% of new students 2019-2020 understanding of displacement and distance concept, and the other have shallow understandings and even misconceptions. Exploration of understanding the concepts of distance and displacement can be used as reference material and consideration for educators to develop appropriate, measurable, and efficient learning strategies.
Feature extraction of noise signal in motorcycle by Fast Fourier Transform
Authors: Delina M , Nurhusni P A
Published: April 2021

This research aimed to study the feature of noise signal from various exhausts in motorcycles by the Fast Fourier Transform (FFT). The noise signal was examined into three different features; energy, entropy, and zero-crossing rate. The energy and entropy defined the noise came from an exhaust or non-exhaust, while the zero-crossing rate distinguished normal and racing-exhaust. The results showed that the energy of an exhaust noise was always in the range of 2.4 to 2.8 joule. The entropy of exhausts racing was observed in the range of 0.00 to 0.05 joule. When the acceleration pedal was on, the entropy was become higher. The zero-crossing rate of racing exhaust was in the range of 0.00 to 0.05, the non-racing exhaust was in the range 0.05 to 0.1.
Band gap energy calculation of theaflavin and Cyanidin-3-Glucoside molecules as active material in Dye Sensitized Solar Cells using Density Functional Theory (DFT)
Authors: Rizqillah G , Muttaqien I , Perkasa Y S , Sanjaya M , Ramdhani R , Aliah H , Pitriana P
Published: April 2021

Dye-Sensitized Solar Cell (DSSC) is one of photovoltaic (PV) cell which converts solar energy into electrical energy, by using dye as its active material. In this study, total energy and bandgap energy of natural dyes such as theaflavin and cyanidin-3-glucoside (C3G) molecules were calculated using density functional theory (DFT) method via quantum espresso software. Optimization of some calculation parameters such as cutoff energy, pseudopotential and k-point have been done to ensure minimum total energy of dyes molecule. Based on the result, the total and bandgap energy of theaflavin is 10172.80 eV and 1.96 eV, while the total and bandgap energy of the C3G molecule is 8442.26 eV and 1.73 eV. From these results, further investigation is necessary to the opportunities of the two dyes as DSSC sensitizers.
Changes in soil respiration after application of in situ soil amendment and phosphate fertilizer under soybean cultivation at Ultisol South Lampung, Indonesia
Authors: Yusnaini S , Niswati A , Aini S N , Arif M A S , Dewi R P , Rivaie A A
Published: April 2021

Several inputs are needed to increase the production of soybean in Ultisol. The Application of organic soil amendment will increase carbon, nutrients, and water stored in the soil. Besides, the soil structure becomes stable so that plants will be more tolerant of climate change. The higher organic C in the soil, the more fertile soils, the plants grow healthier and fertile, and then the emission of CO2gas into the air can be suppressed. Therefore, this study aims to determine soil respiration (CO2) due to the application ofin situsoil amendment and phosphate fertilizer. This research was conducted at the research station of BPTP Natar, South Lampung, from July to November 2019, arranged with random complete block design in two factorials. The first factor is the source of phosphate fertilizer is without P fertilizer, TSP fertilizer 200 kg ha-1, and rock phosphate 5 tons ha-1, and the second factor is the application of soilin situamendments.i.e.: without the soil amendment, rice husk biochar 5 tons ha-1(B1), organonitrofos compost 10 tons ha-1, and cow dung manure 10 tons ha-1. All experimental units were fertilized with urea at a dose of 50 kg ha-1and KCl at a dose of 200 kg ha-1. The result showed that the highest soil respiration was obtained in the plot treated with rock phosphate and cow dung manure at the single factor. The combination of rock phosphate and cow dung manure resulted in the highest of soil respiration.
The effect of silicate fertilizer on the root development of rice and its tolerance to salinity stress
Authors: Rachmawati D , Ramadhani A N , Fatikhasari Z
Published: April 2021

The problem of salinity stress in agricultural land is increasing rapidly, mainly due to climate change. Salinity in the soil has a detrimental effect on the root growth of rice and reduces the ability of the plant to absorb water and other nutrients from the soil resulting in stunted growth. The application of silicate fertilizers is an effort to reduce the negative effects of salinity stress. Absorption of beneficial element silicon (Si) by rice plants can reduce salinity stress. The objective of this research is to analyze the effect of calcium silicate on rice root growth and its tolerance to salinity stress. This research was conducted with the addition of silicate fertilizer consisting of three levels of CaSiO3 (0 mM, 2 mM, 4 mM) in red rice (Oryza sativa L. ‘Sembada Merah’) under salinity stress treatment at the level of 0 dS m-1(control), 3 dS m-1 (low), 7 dS m-1 (moderate) and 10 dS m-1 (high). The treatment with a salinity level of 10 dS m-1 reduced root length, fresh and dry weight of the root. The addition of calcium silicate in salinity stress conditions was able to improve the root anatomical characteristics of rice ‘Sembada Merah’ by increasing the epidermis thickness, cortex thickness, stele diameter and root diameter. Silicate fertilizer is indicated to play a role in increasing suberin and lignin to form apoplast defenses in order to prevent the entry of Na+ ions into the stele.
Assessing major drivers of crop shifting from rice to horticultural production: a case of Landono sub-regency in Southeast Sulawesi
Authors: Saediman H , Indarsyih Y , Abdullah S , Fyka S A , Mboe I S
Published: April 2021

Climate change can have adverse impact on rice as it depends much on precipitation and temperature. In recent years, due partly to climate change, rice farming becomes riskier to failure and less competitive than other crops, so many farmers have left rice farming. This study aimed to determine the major drivers responsible for crop shifting from rice to horticultural production. The study was conducted in Abenggi village of South Konawe Regency in Southeast Sulawesi. Interview and Focus Group Discussions (FGC) were used to collect data and information. Data were analyzed using pairwise comparison method. Study results indicated that the pull factors were more dominant than the push factors. Five most important crop shifting drivers were high farm returns, lower risk of failure, high market demand from horticultural production, and high risk of failure and inadequate water supply from rice farming. Horticulture farming provides more benefits than rice farming in income generation and local economic growth, but abandoning rice fields might compromise food security promotion efforts in the long run. The government and all stakeholders should understand all these drivers to adopt integrated policies and programs in pursuing development objectives of food security promotion, poverty alleviation, and rural development to achieve sustainable development
The fluctuation of rice production of tidal swampland on climate change condition (Case of South Kalimantan Province in Indonesia)
Authors: Khairullah I , Alwi M , Annisa W , Mawardi
Published: April 2021

Indonesia has a wet tropical climate which is part of its territory crossed by the equator. The rice planting period in Indonesia follows the climatic conditions generally divided into two planting seasons, namely the rainy season from October to March and the dry season from April to September. Almost every 3 to 5 years extreme climate changes occur namely El-Nino and La-Nina which have an impact on rice production. Nationally, the extreme climate phenomenon above showed the effect on rice production. El-Nino during the year 1970–2010 was reported to cause a decrease in rice production around -4.08%, while La-Nina in the same period caused an increase in production by about 1.78%. However, the two extreme climatic conditions had reduced rice productivity by -0.50% and -0.65%, respectively. Most of the tidal swamplands have long been cleared and used for the cultivation of lowland rice. In an effort to optimize tidal swampland as a source of rice production in the future, several strategic actions are needed. The purpose of this paper is to uncover the effects of extreme climate change (El-Nino and La-Nina) on rice production and productivity in tidal swamplands and strategic efforts to overcome the decline in rice production due to the extreme climate changes.
Thermal comfort assessment over the past two decades in different landscape areas within Palembang City
Authors: Rusdayanti N , Karuniasa M , Nasrullah N
Published: April 2021

Urbanization has an impact on changing landscapes to built-up land so that it triggers changes in microclimate conditions and potentially disrupts the thermal comfort of urban communities. For two decades, the condition of air temperature and thermal comfort at two locations (Sukarami and Sako) in Palembang city with different landscape changes have been assessed in this study. The variations of air temperature over the past two decades were reported. The Temperature Humidity Index (THI) was an indicator for assessing thermal comfort and its values are categorized as comfortable, quite comfortable, and uncomfortable. The results showed that the air temperature in Sako increased by about two times greater than the increase at Sukarami which was 1.1 °C and 0.5 °C. This study clearly reveals that thermal comfort conditions have worsened in the last two decades. During 1999, the THI values were dominated by quite comfortable categories at both locations. After two decades, in 2019, the percentage of days in the quite comfortable category of both locations decreased by almost 60% at Sukarami and more than 80% at Sako. The main factor this difference occurs is the landscape changes with depletion of vegetation area at both locations.
The evaluate soil quality of mangrove forest in Merauke, Papua
Authors: Sumani  , Supriyadi  , Masiyah S , Aryani W
Published: April 2021

Mangroves are very important to reduce climate change impact since they have been the indispensably portion of the environment serving different functions such as coastline assurance, obstructing salt water interruption, aquaculture, fodder for post, kindling, charcoal generation and moderating botanical and faunal species. Knowledge of soil quality is important for appropriate decision making regarding sustainable land use systems mangrove forest. Soil quality management helps to maintain biological productivity; air and water quality; and human habitation and health. The objective was to evaluate and identify an effective SQ indicator dataset from different mangrove forest types in the Payum beach Merauke area, the soil quality index are computed for basic of framework soil management system. The study was carried out from November 2019 to May 2020. This research use descriptive exploratory research method through field survey. Precise inspecting with three trancec each measuring 5 m2 were built up in both plots. The total of 9 soil samples consisting of 3 trancec type were collected from layer surface 0 to 15 cm, for evaluated quantify soil nutrient reserve and soil quality index (SQI). Soil samples were the analyzed for physical, chemical and biology indicators were used standart laboratory method. The results showed that for mangrove forest has the lowest to medium soil quality index (0.34-0.38) so natural forest has the medium soil quality index (0.39). Soil organic carbon and available phosphorus play major roles in making significant differences in the SQI among the different mangrove forest.
Secondary metabolites of turmeric and ginger on various altitudes and soil characteristics
Authors: Setyawati A , Komariah  , Pujiasmanto B , Fatawi A , Batubara I
Published: April 2021

Turmeric (Curcuma longa) and ginger (Zingiber officinale) are included in important spice commodities in Indonesia. The altitude and the environmental condition have an impact on the secondary metabolite content in the medicinal plants. Moreover, the current situation of climate change also affecting on the local environmental condition which is impacting on the secondary metabolite production. This research aims for determining the effects of altitude and soil characteristics on secondary metabolites. The research method was surveyed, then purposive sampling on farmlands with different altitude and soil characteristics at Karanganyar District, Indonesia. The variables observed were altitude, climate, soil characteristics (soil pH, Cation Exchange Capacity, Organic Matter, texture, Nitrogen, Phosphorus and Potassium), and secondary metabolites of turmeric and ginger (curcuminoid, gingerol, shogaol). The results indicated that the secondary metabolite of turmeric affected by altitude, soil pH, soil texture sand and soil available phosphorus. On the other hand, the secondary metabolites of ginger are affected by altitude, soil pH, soil organic matter, soil texture (silt and sand), and soil phosphorus. Turmeric and ginger in the highlands were produced more secondary metabolites compared with in lowlands.
Organic vegetable farming system enhancing soil carbon sequestration in Bali, Indonesia
Authors: Sardiana I K
Published: April 2021

Climate change as an implication of global warming due to the influence of increasing concentrations of greenhouse gases in the atmosphere has become an important issue in recent decades. Organic farming plays an important role in mitigating climate change by reducing atmospheric greenhouse gas emissions through increased soil carbon sequestration. This study was designed to compare soil carbon sequestration levels between conventional and organic vegetable farming fields in Bali, Indonesia. Soil samples were taken from organic fields and conventional fields in pairs. Variables of soil organic carbon, soil labile carbon, and soil bulk density are measured. Vegetable yields were estimated by fresh weights from a quadrant of 45 plants (1.12 m2) in each farming system, which is then converted to the fresh weight per hectare. The results from soil analysis indicate that organic farming leads to soil with significantly higher soil carbon storage capacity than conventional farming. The labile C fraction shows a more significant increase compared to total C. Organic farming can increase by 1.13 tons C per hectare per year compared with the conventional farming system. The use of manure compost as an alternative in vegetable fields of Bali has resulted in increased soil organic carbon storage and gross benefits for farming. Although more research is needed on the actual emissions of CO2 gas from organic and conventional farming, this research can be used as an early indication that organic vegetable farming system can increase the mitigation of global warming, and build sustainable agriculture in Bali, Indonesia.
Land suitability evaluation for sorghum (Sorghum bicolor L.) at Gunungkidul, Yogyakarta, Indonesia
Authors: Komariah  , Ariyanto D P , Rachmawati V A
Published: April 2021

Gunungkidul, Yogyakarta is a dry area with limited water availability for farming. To support food security problems that may be resulted by climate change impact in the future, various possible commodities with the low water requirement, including sorghum, should be evaluated. This study aims to evaluate the land suitability of Gunungkidul in Yogyakarta, Indonesia for sorghum (Sorghum bicolor L.). This research was conducted in Purwodadi Village, Tepus District, Gunungkidul in Yogyakarta with purposive sampling and survey method at four land units. The results showed that the area was classified as marginally suitable (S3) due to the slope of more than 20% which is prone to erosion hazard, and not suitable (N) because of the loamy sand soil texture which may inhibit the root growth. However, constructing terraces and adding soil ameliorant such as organic fertilizer for rather long period are potential to increase the status to moderately suitable (S2) and S3, respectively. Overall, the sorghum farming at the area is feasible since the revenue cost ratio (R/C ratio) was bigger than 1 (1.46).
Climate change adaptation strategies in the highland by vegetable farmers
Authors: Hermawan A , Ambarsari I , Sarjana  , Kusumasari A C , Oktaningrum G N
Published: April 2021

The Highland of Magelang Regency has a strategic role as a vegetable production center in Central Java. Farmers in the highlands of Magelang cultivate various types of vegetables. Since highland vegetable farming hugely depends on rainfall as a primary water source, climate change remarkably affects farming. Vegetable farmers often encounter problems due to climate changes in drought and highly intense rainfall, which caused crop damage. Since specific studies on vegetable farmers’ adaptation strategies to cope with climate changes and their economic effects are still limited, this research aimed to study the phenomenon. The observation was performed by interviewing all members (20 farmers) of the Mutiara Organic farmers group in Sumberejo Village, Ngablak Sub-Regency, Magelang Regency, conducting field observation and soil analysis in September-November 2018. The results showed that farmers developed several adaptation strategies to deal with climate change, namely applying multiple cropping systems, developing organic agriculture, growing vegetables under plastic shelters, and expanding a vegetable nursery as an alternative source of income. Farmers cultivated extra crops in the wet season due to abundant water availability. Organic vegetable farming, which began in 2013, from the higher value of the benefit-cost ratio, was more profitable than non-organic farming. Besides, organic farming’s land quality was also better based on organic carbon (C-organic), Nitrogen (N), Cation Exchange Capacity (CEC), and other nutrients. Therefore this study recommended to develop organic vegetable farming on a broader scale and seriously support farmers’ vegetable nursery business, since it was profitable, contributed significant income for farmers, and strategic for vegetable farming industries development.
Factors influencing the adoption of integrated crop-livestock to support land conservation of organic agriculture in Mojosongo area, Karanganyar, Indonesia
Authors: Purnomo S H , Sari A I , Emawati S , Rahayu E T
Published: April 2021

The current climate change must be anticipated with various efforts in order to preserve nature, especially agricultural land. One effort to preserve sustainability is to apply organic agriculture that brings together crops-livestock. This study aims to determine the influence of four factors (farmer attitude, knowledge and skills, infrastructure, and government support) on the adoption of an integrated crop-livestock system. The basic method in this research is the survey research method. The research sample was determined by convenience sampling consisting of 40 farmers. Data collection techniques were carried out through interviews, observation and questionnaires. The variables used on the adoption of integrated crop-livestock were attitude (X1), knowledge (X2), infrastructure (X3) and government support (X4). Data analysis involved validity analysis, reliability analysis and multiple linear regression analysis. Validity and reliability tests showed the results were valid, with the value of r statistic > 0.5 and the reliability value of α > 0.6. Multiple linear regression analysis showed that all variables had positive values with regression equation Y = 1.102 + 0.374X1 + 0.153X2 + 0.108X3 + 0.145X4 + e and showed the coefficient of determination (R2) of 0.719. F test showed F-statistic > F-table (9.455 > 2.53) at significance level P < 0.05. T-test showed that t-statistic values of X1, X2, X3, and X4 were 2.435, 0.138, 0.478 and 1.209, respectively, while the t-table value was 2.030. Simultaneously, adoption factors (X1, X2, X3, and X4) affected significantly the adoption of integrated crop-livestock (Y), while partially only the X1 variable affected significantly the adoption (Y), and X2, X3, and X4 variables did not affect significantly.
Effect of organic fertilizers on CH4 and N2O production from organic paddy field
Authors: Anshori A , Sunarminto B H , Haryono E , Pramono A , Mujiyo
Published: April 2021

Organic fertilizer potentially results in healthy soils and sustainable agriculture. Organic fertilizer is a nutrients source in organic farming. Organic fertilizer application affects CH4 and N2O production. CH4 and N2O production affect increasing greenhouse gas emission concentration, global warming and further climate change. This study aimed to determine organic fertilizers effect on CH4 and N2O production from organic paddy fields. Five types of organic fertilizer namely mixed compost (MC), cow manure (CM), cow manure compost (CMC), straw compost (SC) and solid biogas waste (SBW) were added to paddy soil and determined CH4 and N2O production. The result showed that CH4 and N2O production were affected by organic fertilizer addition. CH4 production was 109.52 mg kg soil-1 day-1 and N2O production was 1.70 mg kg soil-1 day-1. The lowest production of both gasses was in SBW treatment. CH4 production was 177.21 mg kg soil-1 day-1 and N2O production was 2.80 mg kg soil-1 day-1. The highest was in soil with cow manure (CM) treatment. CH4 and N2O production correlated positively with organic carbon and Carbon and Nitrogen ratio (C/N) of organic fertilizers (p < 0.05). Application of solid biogas waste (SBW) with drainage treatment on 10th day and composting are the best effort to mitigate CH4 and N2O production.
Does soil type hold a role in the dynamic of carbon dioxide (CO2) emission from paddy rice fields?
Authors: Ariani M , Hanudin E , Haryono E
Published: April 2021

Soil holds a vital role in forming greenhouse gas (GHG) emission from paddy rice fields. There are three main GHG from paddy rice, namely Methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2). This research aimed solely to explore the dynamic of CO2 emission from paddy rice with different soil types, namely sandy loam and clay soil. In each site, two-factor treatments were applied. There was water regime namely 1) continuously flooded, and 2) alternate wetting-drying (AWD) as the first factor and organic matter application namely 1) without organic matter (OM), 2) bio-compost 5 t ha-1, and 3) bio-compost 10 t ha-1. Carbon dioxide flux in sandy loam soil ranged between -11.50 to -0.47 mg CO2 m-2 d-1 under continuously flooded conditions and -7.64 to 3.03 mg CO2 m-2 d-1 alternate wetting-drying conditions. The clay soil was lower, ranging between -7.43 to 0.51 mg CO2 m-2 d-1 under continuously flooded conditions and -5.54 to 0.47 mg CO2 m-2 d-1 under alternate wetting-drying conditions. Clay soil tended to emit less CO2 emission than sandy soil. The result showed that soil physical characteristic plays an important role in controlling CO2 from paddy rice.
Estimation of household greenhouse gas emissions from different activities in Bintang Alam, Karawang Regency, Indonesia
Authors: Ahmad D A , Kristanto G A
Published: April 2021

Since the Sustainable Development Goals (SDG’s) declaration in 2015, nations have attempted to meet the 17 goals, one of which is addressing climate change. In this respect, current conditions have brought forth a significant challenge to the environment, global economy, and human health. This study aimed to analyze greenhouse gasses from household activities in the Bintang Alam housing complex, Indonesia. Data on waste were collected based on Indonesia National Standard 19.3964.1994, while data on fuel consumption from waste transportation to landfills were collected through interviews. Data on household consumption of water and electricity as well as demographics were gathered using questionnaires. The waste reduction model and the IPCC (Intergovernmental Panel on Climate Change) method were used in the estimation. Results showed that solid waste management, wastewater management, clean water production, and electricity consumption resulted in emissions of 1,634.26; 89.13; 381.24, and 4,122.87 tons CO2e/year, respectively. The total GHG emissions were 6,227.5 ton CO2e/year or an equivalent of 4,151.6 ton CO2e/household/year or 1,149.60 ton CO2e/person/year. To reduce GHG emissions, electricity-saving through behavioral changes, a shift to energy-saving household appliances and waste management through recycling and composting should be encouraged. If these practices were applied, GHG emissions in the study site would decline to 1,619.15 ton CO2e/year, accounting for a 26% reduction in total current emissions.
Potential of essential oil of galam (Melaleuca cajuputi) leaf waste in Palangka Raya City
Authors: Azhari M , Novrianti
Published: April 2021

One of the causes of environmental and climate problems is human-generated waste such as Galam (Melaleuca cajuputi) leaf waste. Galam leaf waste with Essential oil ingredients can be a solution to the problem. The research objective was to utilize Galam Leaf waste in the form of essential ingredients and to determine the impact of climate change from the continuous utilization of Galam Plants The formula used was 10 liters of water, 4, 5, and 6 kg of Galam leaf biomass. Distillation activities carried out for 3 hours/formula. Repetition of each formula is done 5 times with the distillation technique. The essential oil results obtained from the formula of 4 kg of Galam leaf biomass are 4 ml, 6.2 ml, 12 ml, 7.5 ml, and 14 ml. Formula 2 is 11.5 ml, 16 ml, 14.5 ml, 13.5 ml and 15.5 ml. Formula 3 is 24.5 ml, 28 ml, 27 ml, 20.5 ml and 16 ml. Galam leaf waste processing activities can be a solution to reduce the impact of environmental and climate pollution.
Migration as a coping strategy of Indonesian farmers in the face of climate change
Authors: Hidayati I
Published: April 2021

This research explains an increase in migration flow of the Indonesian farmer that occurs as a result of climate change’s impact. Crop failure has disrupted the livelihoods of the population, so they have to do coping strategies to fit their livelihood. The explanation in this research is to understand the coping strategy of Indonesian farmers in dealing with climate change. Temporary migration is the last battle that can be done by farmers. This research applied a qualitative method to explore the coping strategy of the farmer with data from in-depth interviews, FGDs and observation. The results showed that the farmer had made several coping strategies for climate change. When the harvest fails, farmers migrate temporarily to the nearest town. The types of work carried out by farmers are very diverse, including trading and construction. Temporary migration is a final choice for survival and fulfil their livelihood. The ability to cope itself is influenced by various factors, such as gender, age, social capital, social networks, and the level of knowledge of the community.
Corona in Pupuh Ginada
Dasar: A cultural response to crisis situations due to the Coronavirus pandemic
Authors: Pradana G Y K
Published: April 2021

The Corona pandemic is further exacerbated by the climate change that is happening. This situation also affects the Balinese people. I found the Pupuh Ginada Dasar in the middle of the Coronavirus Pandemic. Pupuh Ginada Dasar can be understood as a new type of Balinese poetry that arises during seasonal changes in the coronavirus pandemic. The purpose of this research was to uncover the Corona in the Pupuh Ginada Dasar. The problems are 1.) What is the Corona in the Pupuh Ginada Dasar?; 2.) What is the meaning of Corona in the Presentation of Pupuh Ginada Dasar?. This research was completed with a qualitative method with the Emic approach. Observation techniques, interviews are used for primary data collection and literature study connected with secondary data search. All data were analyzed qualitatively with symbol theory and reception theory. The results showed that the form of Corona in the Pupuh Ginada Dasar figures could be understood in the form of words that are strung together as an expression of new creativity in presenting the Pupuh Ginada Dasar. Corona in Pupuh Ginada Dasar means a source of disaster, source of the financial crisis, source of life woes, motivation in finding new jobs, source of motivation in cultural revitalization, and source of motivation for the socialization of virus prevention during the Coronavirus Pandemic.
Impact of weather changes on the potato cultivation quality with the LEISA system
Authors: Setiyo Y , Gunadnya I B P , Gunam I B W , Yuliadhi K A
Published: April 2021

The aspect of potato cultivation well known to most farmers is closely related to the climatology of the cultivated site. Therefore, this study aims to obtain the basic information on climatic change in potato cultivation quality using the LEISA system or in potato cultivation, compost is used as fertilizer at a dose of 10-30 tonnes/ha. The experiment was designed based on four treatments namely, (1) cultivation in normal weather conditions from April - June 2019, (2) in foggy air conditions from July to September 2019, (3) in extremely hot conditions from October to December 2019, and (4) in extremely rainy conditions from January to March 2020. The parameters observed were (1) microclimates around the plants, (2) the condition of the growing media depth 0-30 cm, (3) plant growth, and (4) productivity. The changes from normal to foggy, extremely rainy, and hot weather had impacts on soil temperature by 22.1±5.2%, 8.6±2.2%, and 10.3±5.9% respectively. In extremely hot and rainy weather, the cation exchange capacity (CEC) value was low by 22.1±0.16 and 23.8±0.21 meq/100g of dry soil. The extremely hot, rainy, and foggy weather reduced the productivity of potato plants by 32.13–60.2%, 19.5– 43.0%, and 16.7–18.0% respectively. In addition, they also reduced the quality of potato tubers by 19.9–94.7%, 26.0–62.9%, and 8.8–15.9% respectively.
Growth response of rice (Oryza sativa L.) plant towards magnetized seawater treatment
Authors: Sutiyanti E , Rachmawati D
Published: April 2021

Climate change has impacted many sectors, especially ecology and agriculture which are related to water supply and quality. The amount of available fresh water on Earth has been less than 1%, potential effects include drought, water quality impairment, and saltwater intrusion to coastal water supplies. An alternative to overcome the shortage of fresh water in the agricultural sector is to substitute freshwater with other sources of water, for example, seawater. Seawater availability is 97%, but it cannot be used directly in the agricultural sector due to the high salinity of seawater. High salinity causes numerous disturbances to the growth of the plant. The ability of a magnetic device for seawater desalination can be used in this research to evaluate seawater potential for irrigation water. This research aims to analyze the growth response of rice plants ‘IR 64’ and ‘Inpari 35’ with magnetized seawater treatments. This experiment was conducted using a randomized design with three factorials, i.e., rice cultivars (‘IR 64’ and ‘Inpari 35’), level of seawater salinity (0 and 10 dS m-1), and type of magnetized seawater (untreated and treated by magnetic treatment). The experiment result showed that magnetized seawater treatment decreased salinity level in seawater to minimize the negative impact of salinity on the growth of rice plants as indicated by increasing plant height, number of leaves, plant biomass, carotenoid, and chlorophyll content.
Risks of community-based groundwater users in the transition to West Semarang drinking water supply
Authors: Rahdriawan M , Pradoto W , Pratama F A , Hanifah M S , Muzdalifah S
Published: April 2021

One of the phenomena of climate change is the reduction in groundwater resources, such as in Semarang. However, many people utilize this water source, whereas it can damage the environment and land subsidence. Therefore, the government-private partnership builds West Semarang Drinking Water Supply System, one of which functions to address groundwater use. This study aimed to determine community-based groundwater utilization characteristics that would switch to the municipality piping system. The research method used qualitative by reviewing documents and interviews community-based groundwater stakeholders and managers. The results showed that most people feel comfortable using water. They had long been less aware of the risks of groundwater exploitation. There were patterns and characteristics of the area, economy, and groundwater utilization by the community that affected their acceptance of switching to a new water supply system. In the future, there is a need for more intense socialization regarding the transition of drinking water supply by considering the characteristics of the current community-based water supply.
Symbolic convergence of #ClimateCrisis: A content analysis of Greenpeace Indonesia campaign on Instagram
Authors: Pramana P D , Utari P , Naini A M I
Published: April 2021

Climate crisis campaign is being promoted worldwide to raise awareness of climate change impact, including in Indonesia. One of organizations actively voicing the importance of environmental awareness is Greenpeace. This research aimed to identify the fantasy theme of climate crisis campaign messages created by Greenpeace Indonesia through images and narratives posted on Instagram account @greenpeaceid. Qualitative content analysis was used as research method. This research sample was the images using hashtag #ClimateCrisis which were posted from January to June 2020. This research used Symbolic Convergence Theory and Fantasy Theme Analysis to interpret the conveyed visual storytelling. The research finding showed that Greenpeace Indonesia used three dominant fantasy themes; they were (1) horrible climate crisis threat, (2) an urgent need to switch to use the renewable energy resources, and (3) issuing environmentally-friendly regulations. Dramatization pattern of visual messages created were various phenomena of natural disasters as real evidence of climate crisis, concerning the bad impact of the coal electric steam power plant’s extension plan, and how the bill of Omnibus Law has bad implication for climate crisis in Indonesia.
Managing mangrove forest in Bintan Island: socio-economic benefits of climate change mitigation and adaptation
Authors: Akbar D , Irman  , Yudiatmaja W E , Fadli K
Published: April 2021

In Climate Change mitigation, mangroves have an important role as one of the most effective and economic methods of offsetting carbon emissions and protecting shoreline erosion. Mangroves in Indonesia have a total area of 2.9 million hectares, 52 thousand hectares of them disappear every year and aquaculture is responsible for 40 percent. In contrast, with the level of mangroves damage threats is high, the level of sustainable ecosystem awareness is low. In accordance with previous studies, mangroves forests in Bintan Island have been cut down to supply combustion and ended up into charcoal. However, it can be minimized by enabling the local communities to avail themselves of carbon offset/conservation payments under approved climate change mitigation strategic-plans. The law enforcement of Law no 32 Year 2009 and the PERDA No. 14/2007 about neighboring Bintan Island Regional Coastal Planning were designed to support the Mangroves Conservation in Bintan Island. This paper aimed to examine mangrove ecosystem management through the collection of data and information on the socio‐economic in 8 potential villages in Bintan; Busung, Kuala Sempang, Penaga, Pengujan, Bintan Buyu, Tembeling, Mantang Baru and Sebong Lagoi. This study found Busung, Kuala Sempang, Penaga and Pengujan as 4 potential Villages to be seriously developed and recommends the government to gain more partnerships in arranging and solving mangroves conservation problems.
Implementation of Climate and Disaster Resilience Initiative (CDRI) in Kampung Sewu, Surakarta, Central Java, Indonesia
Authors: Suryanto  , Arrasyid Pradiptya , Amelia Choya TR
Published: April 2021

Global climate change causes the occurrence of natural disasters like floods. Disaster causes a loss or other negative impacts on the community. Community resilience is necessary to increase the capability to cope with the negative impacts. Besides the local wisdom, many aspects should be improved to reduce the disaster risk. This study aimed to determine the level of community resilience facing floods in Kampung Sewu and to find out the variables that cause the level of resilience of Kampung Sewu community low. This research was conducted in Kampung Sewu, Jebres Subdistrict, Surakarta City, precisely in Neigborhood Association (RT) and Citizenz Association (RW), namely: RT 02/RW I, RT 03/RW I, RT 01/RW II, RT 02/RW II, RT 01/RW II, RT 01/RW IV, RT 01/RW VIII and RT 01/RW IX. The method used in this research was descriptive quantitative. The analysis used was Climate and Disaster Resilience Initiative (CDRI). The sampling technique was purposive sampling. The results of this study indicated that the area that had the highest level of community resilience was RT03/RW I because the location had low risk and rare from intervention of Sibat Community to anticipate of flooding. Location that had the lowest resistance level was RT01/RW IX because the location had never been flooded and there was no interference in Sibat Sewu in anticipation of flooding. Sibat Sewu educates people actively improving capacity building for community in Kampung Sewu. The variables causing low endurance were sanitation and waste disposal, education and awareness variables, disaster preparedness variables, income variables, financial and savings variables, budgetary and subsidy variables and land-use.
Wayang Wong Bali performance in era pandemic Covid 19
Authors: Ruastiti N M , Sudirga I K , Yudarta I G
Published: April 2021

This article aims to discuss the art of Wayang Wong Bali during the Covid 19 pandemic era. In line with the influence of the Covid 19 pandemic amid climate change and the tendency for many people to choose to stay at home, it has implications for the Balinese Wayang Wong performance’s marginalization. However, there appear to be differences in the presentation of the Wayang Wong Bali performance during the Covid 19 pandemic. The questions are : (1) What is the form of the Wayang Wong Bali performing arts in the Covid 19 pandemic era?; (2) What are the implications for their environment and the Wayang Wong performance art itself?. The research, which is located in Bali, was conducted using qualitative methods to study the Balinese Wayang Wong in the era of the Covid 19 pandemic. In this study, the data sources were the Wayang Wong Performing Arts performed by the millennial generation themselves, dancers, figures, and observers of the Balinese Wayang Wong performing arts. All data collected through observation, interviews, and literature study techniques were analyzed using aesthetic theory and reception theory. Based on the results of this study it can be concluded that : (1). The Millennials presented the Wayang Wong Bali Performing Arts during the pandemic era in the form of a technology-based mini oratorium. This can be seen from the way of presentation, fashion make-up, narration, and musical accompaniment from the show. (2) The development of Wayang Wong performing arts during the pandemic seems to have indirect implications for reducing audience concerns about disasters due to climate change and cultural enrichment, namely the emergence of new performing arts, cultural preservation, and character strengthening for those involved.
Revitalization of traditional fisheries rights of indigenous people in sustainable fisheries management in Indonesia
Authors: Sari D A A , Latifah E
Published: April 2021

Climate change that increases the ocean surface temperature has affected life in the ocean ecosystems. Fish migrate from their natural habitat and seawater intrusion will affect the coastal ecosystem, so that fishermen need to adjust their fishing methods. Indonesia’s oceans hold enormous fisheries potential wealth and enormous potential economic value that needs to manage properly. For decades, the traditional and local wisdom in coastal communities has become the prime movers of marine and fisheries development. Unwritten customary rules in fisheries resource management are presumed to be a factor in the loss of local communities’ wisdom in the modernization era. The customary institution’s effectiveness in the implementation of compliance and supervision of customary rules is prone to degradation and this is partly due to the current generation’s lack of local knowledge and the rapid development of fisheries management technology, which in some cases is a threat to the preservation of marine ecosystems. This research was a normative study based on primary and secondary legal materials. This research aimed to revitalize traditional fisheries rights in the management of Indonesia’s marine resources. The result showeds that some hereditary traditional knowledge made indigenous peoples more able to adapt to climate change so the involvement of indigenous peoples and the fulfillment of their traditional rights must be considered in fisheries management policies.
Modeling changes in land use using the integration of MLP-NN, CA-Markov models and GIS for settlement development in Tembalang District
Authors: Subiyanto S. , Amarrohman Fauzi Janu , Rahmah Azizah Nur
Published: April 2021

The effects of dynamic land use change can be modeled by Artificial Neural Network (ANN) models with Multi-layer Perceptron (MLP) network architecture and backpropagation algorithms. The setting process and predictive capabilities testing will be generated by the models with a combination of MLP-NN, CA-Markov methods and Geographic Iinformation System (GIS) from several previous studies so the results is accurate. This study aims to analisys land use change in Tembalang District in 2010 as first period models, 2014 as period models, and land use in 2018 as validation data, make a model of land use change with ANN methods and projection land use in Tembalang District in 2026. CA-Markov models are used for future projections. In modeling land use change, several driving force variables are used, namely distance to roads, rivers, settlements, and population density. This research are using maps for 2010, 2014 and 2018 from digitization process of hight resolution satellite imagery and validation land use in the field. In this research, data on land use change from 2010 to 2018 is dominated by land use changes from vacant land to settlements and housing. Settlement increased by 2,13%, housing increased by 102,69%, and vacant land already allocate increased by 47,32% and vacant land decreased by -61,18%. The results of modeling validation have a Kappa index of 0.959, an the root mean square value is 2.579 m that means this value is accepted, and 85% of the area between the prediction map and the digitization map are said to be appropriate, so this model is classified as having very good similarities with existing land use conditions in 2018. Overall prediction results show that land suitability is 70.52% and 29.48% of land is not in accordance with Semarang City RTRW map for 2011-2031.