bluuebunny/crossref_metadata_2025_split huggingface dataset:
Blue-Green infrastructure determines the microclimate mitigation potential targeted for urban cooling
Authors: Sanusi R , Jalil M 
Published: December 2021

Abstract
Urban Heat Island (UHI) exacerbated by global warming can increase the thermal load in cities, which leads to more extreme climate events. One of the strategies to mitigate the impact of extreme climates and UHI is through nature-based solutions such as the Blue-Green Infrastructure as it provides environmental and community benefits However, Blue-Green Infrastructure’s role in urban cooling in the tropics still needs to be further investigated. Therefore, this study examined the role of Blue-Green Infrastructure on microclimate modifications in an urban park. Microclimate measurements were made using systematic random sampling with random start (total of 64 sampling points) at a waterbody (Blue Infrastructure) and tree and grass (Green Infrastructure) areas during solar noon time (1200-1400). Blue-Green Infrastructure showed greater microclimate benefits compared to the open space with the reduction of air temperature by up 1.6°C. However, green infrastructure had greater cooling benefits compared to Blue Infrastructure especially trees with significantly lower air temperature and solar radiation interception (0.71°C and 250.3 W/m2, respectively) as well as higher relative humidity (12.17%). Moreover, stand characteristics determine the microclimate mitigation function. This study provides a useful indication of the role of blue and green spaces in urban cooling, where it further emphasizes the importance of Blue-Green Infrastructure utilization in urban landscapes. It further recommends that urban planners, managers and policymakers should consider these strategies for urban cooling purposes : 1) Utilising Blue and Green Infrastructures especially trees 2) Tree canopy cover and DBH should be set as priority traits.
Green space in Ternate: tree species diversity and physical condition assessment
Authors: Ashari R , Irmayanti L , Peniwidiyanti  , Nurhikmah  , Fatrawana A 
Published: December 2021

AbstractGreenspace has become an essential element in the built environment. As a crucial living component, trees in the green space need to be maintained to secure their longevity. In Ternate, information on the green space relating to species diversity, tree performance, and other environment variables is still lacking. One of the important green spaces in Ternate is Nukila Park. The purpose of the study was to describe the species diversity and the physical condition of trees in Nukila Park. Data was collected by recording all three species at the research site and observing their physical condition using visual tree assessment (VTA). Results showed that the tree species are dominated byPterocarpus indicus,Samanea saman, andS wietenia macrophylla. Diversity index (Shannon Wiener, H’), evenness index (E), and Richness index (Margalef, R) were H’=1.92, E=0.69, and R=2.92, respectively. These values indicate that species diversity and evenness were moderate while species richness was low. The tree health showed that most of the trees (81%) were in good condition, while the rest (19%) were damaged caused by pests and diseases. The results could be used to formulate appropriate management of Nukila Park, such as pest and disease control and species enrichment to improve tree health.
Relationship of trees as green infrastructure to pro-environmental behavior for psychological restoration in urbanized society: a systematic review
Authors: Othman N , Hamzah H , Mohd Salleh M Z 
Published: December 2021

Abstract
The need for green infrastructure has increased with the awareness towards a sustainable environment. Trees are considered one of the “green infrastructure” elements due to the “green” benefits they have provided to the urban environment. Greener environments are associated with mental health, and to the urban inhabitants, trees bring a multitude of environmental benefits. Even though there are various opinions on pro-environmental behavior (PEB), there are similar understandings of protecting and preserving the environment. Psychological Restoration (PR) is a cognitive progression in replenishing a good emotion via a connection with the natural environment and urban park. This paper reviews the literature published between 2005-2021 on SCOPUS and describes the current knowledge regarding PEB and PR connected to urban trees. Preferred reporting items for systematic reviews and meta-analyses known as PRISMA were employed, which deals with identification, evaluation, exclusion, and inclusion of data. Some studies have focused on how the natural environment can affect human health and well-being. Other studies have looked into the built environment and considered urban trees as a positive solution to stress alleviation and social cohesion. Hence, the reviews will provide a proposition for future research in the respective field to yield relevant results to the societies.
Future production of bioethanol from microalgae as a renewable source of energy
Authors: Wusnah  , Supardan M. D. , Haryani S. , Yunardi  
Published: December 2021

AbstractFossil fuels that mainly supply the current increasing world’s energy demand originated from non-renewable resources. In addition to the depletion of their resources within the next short time, the combustion of fossil fuels to power industries and transportation also negatively impacts humans and the environment due to the release of various gaseous pollutants. To increase the share of renewables in the primary energy mix, the Government of Indonesia is currently struggling to meet a target of 23% by 2025. Therefore, more significant efforts to search for potential renewable energy sources are the only way to overcome this issue. Bioethanol is an eco-friendly renewable energy source since its combustion emits a low concentration of pollutants. Microalgae have gained significant interest in bioethanol production because of rapid biomass growth and relatively easy pre-treatment steps. It is renewable, carbon-neutral, sustainable and can be grown in wastewater coupling as wastewater treatment. This paper reviews bioethanol production, providing knowledge on the characteristics of microalgae potential for producing biomass to be converted into bioethanol, introducing process for bioethanol production, and presenting the potential challenges of bioethanol as a future renewable energy.
Effectiveness of using the dose of mycorrhiza bio-fertilizers to increase growth and production of red paprika (Capsicum annum L.) in Ultisol Aceh
Authors: Syafruddin S , Syakur S , Jumini  , Sulaiman I 
Published: December 2021

Abstract
Using dose mycorrhizal bio-fertilizers can spur the growth and production of red paprika (Capsicum annum L.) on Ultisol Aceh. Besides that, it can also increase root colonization by mycorrhizal and P2O5 uptake, which red paprika plants need to produce high growth and yield. The purpose of this research was to study the effect of dose bio-fertilizer mycorrhizal on the growth and production of red paprika in Ultisols Aceh. The research was arranged by a non-factorial randomized block design with three replications. The investigated factor was the dose of bio-fertilizer mycorrhizal from local specific strain mixing between Glomus mosseae and Gigaspora sp. The dose of the mycorrhizal bio-fertilizer used was control (without mycorrhizal) of each plant, 5, 10, and 15 gram. The observed parameters were plant height and stem diameter of red paprika at 15, 30, and 45 days after transplanting; additionally, the parameter of red paprika production was observed at 125 days after transplanting and P2O5 uptake and root colonization by mycorrhizae at 60 days after transplanting. The results showed that the best dose of mycorrhizal bio-fertilizers on growth and production, root colonization, P2O5 uptake was found in the treatment of doses of 10-gram mycorrhizal bio-fertilizer for each plant.
The effect of water-saving irrigation on the growth of local rice plants
Authors: Yanti D , Berd I , Naspendra Z 
Published: December 2021

Abstract
The decline in the function of the watershed causes the increasing scarcity of water, while the competition for water use is increasing. A conventional method of rice cultivation (continuous inundation) is very wasteful in the use of irrigation water. Water-saving irrigation by regulating the water availability in rice fields is an effort to reduce water loss due to percolation, seepage, and runoff. The study’s purpose was to examine the effect of water availability in the field on the growth of local rice varieties. The study used 5 treatments of water availability in the field (GW < 50% AW, 50% AW < GW ≥ 60% AW, 60% AW< GW ≥ 70% AW, 70% AW < GW ≥ 80% AW, and saturated) with 3 replicates and the parameters observed were the height of plants and number of tillers. The results showed that the availability of water in the field did not affect the plant height but did affect the number of tillers. From the vegetative phase at the age of ±28 days after planting (DAP) to the beginning of the generative phase ±55 DAP, there was an addition of tillers. When the generative phase period from ± 55 DAP, the formation of the tillers stopped, and some of the tillers dried up or died.
Effects of rations containing leubiem fish (Chanthidermis maculatus) waste and phytogenic suplementation on local ducks performance in the starter phase
Authors: Daud M , Yaman M A , Zulfan  
Published: December 2021

Abstract
This study aims to examine the potential use of leubiem fish (Chanthidermis maculatus) waste and phytogenic supplementation on ration, in order to increase the performance of local ducks in the starter phase. This study used 100 local ducks aged 1 week old, and maintained them until 8 weeks old. The ducks were placed in 5 treatments and 4 replications groups (5 ducks / repetition). The study was conducted experimentally, using a Completely Randomized Design (CRD), consisting of 5 ration treatments, including: R1 (control); R2 (basal ration containing leubiem fish skin flour 10% + phytogenic 0.5%); R3 (basal ration containing leubiem fish head flour 10% + phytogenic 0.5%); R4 (basal ration containing leubiem fish bone flour 10% + phytogenic 0.5%) and R5 (basal ration containing leubiem fish gill flour + phytogenic 0.5%). Observed variables were feed consumption, body weight gain, final weight, feed conversion, and local duck mortality in the starter phase. The data obtained were both analyzed using Analysis of Variance (ANOVA) and Duncan’s multiple range test. The results showed that the use of leubiem fish waste and phytogenic supplementation in the ration both increased the performance of local ducks in the starter phase and had a significant effect (p <0.05) on ration consumption, weight gain, and final weight. However, they had no significant effect on feed conversion and local duck mortality in the starter phase. It was concluded that the use of leubiem fish (10% bone meal) and phytogenic supplementation 0.5% in the ration was able to increase body weight gain, and the final weight of the starter phase local ducks (aged 1-8 weeks).
Effect of irrigation methods and testing some rice cultivars against growth, root development and yield on rainfed Ultisols of Aceh Besar
Authors: Helmi H , Zakaria S , Efendi  , Munawar A A , Aulia R 
Published: December 2021

Abstract
The main obstacle in rice cultivation on dryland is the limitation of water availability and large fluctuation of groundwater availability. It causes plant metabolic processes to be hampered. The threat of such natural conditions can be overcomed by intensifying and using superior cultivars to adapt widely to the environment, such as being resistant to drought. This study aims to determine the effect of irrigation methods and the response of several different cultivars to growth, yield potential, and rice root systems. This research using a Split Plot Design pattern. The factors examined in this study were irrigation methods, which consisted of 3 levels of treatment, namely continuous irrigation (P1), intermittent irrigation (P2), and sprinkler irrigation (P3). Variety factors consisted of 4 levels, namely: Batutegi (V1), Situ Patenggang (V2), Inpago 5 (V3), and Sanbei (V4), so there were 12 treatment combinations with three repetitions of 36 treatment plot units. The results showed that the continuous and intermittent irrigation methods gave the highest yield per hectare and had the same weight, while the sprinkler gave the lowest yield per hectare, although not significantly different from other irrigation methods. The cultivar that gave the highest yield per hectare was Sanbei, while the lowest was Situ Patenggang, and the cultivar that gave the highest 1000 grain weight was Inpago-5, while the lowest was Sanbei, although it was not significantly different from other cultivars.
Controlled sprinkler irrigation system for agricultural plant cultivation
Authors: Satriyo P , Nasution I S , Della D V 
Published: December 2021

Abstract
In recent decades, precision agriculture and smart farming have become promising issues particularly in the industrial revolution era 4.0. The main objective of this presented paper is to apply the optimized controlling system developed by means of Internet of things for controlling sprinkler irrigation systems used for agricultural product cultivation where in this study, we used shallot plants. The controlling systems were established by designing hardware and software used to monitor water distribution in sprinkler irrigation for onion plants during five initial days of cultivation. The result showed that controlled irrigation can optimize and monitor all plant growth indicators namely soil moisture, temperature, air humidity and water discharge and be able to carry out watering according to the desired level of soil moisture. It may conclude that a controlled sprinkler irrigation system can be applied as a part of precision agriculture practice in order to enhance production and sustainable agriculture.
Design and performance testing of areca nut thresher machine using solid triangle spike tooth type
Authors: Bulan R , Mustaqimah  , Siregar K , Lesdiana S R , Anwar K , Sitorus A 
Published: December 2021

Abstract
Technology for handling agricultural products from areca nut has received less attention. However, the economic potential of the areca nut is comparable to that of other palm trees. Threshing areca nut from the bunch is one of the procedures that must be completed to obtain high-quality betel nut. Therefore, this research aims to design and test an areca nut threshing machine that uses a solid triangle spike-type threshing tooth. This study uses an experimental manufacturing method in the workshop and laboratory testing. A detailed engineering drawing of areca nut thresher machine is a guide in carrying out the manufacturer. The influence of rotational speed on the threshing shaft (34 rpm, 42 rpm, and 50 rpm) was investigated to determine the machinery’s performance (percentage of threshing results, engine capacity, and fuel consumption). This study indicates that the areca thresher machine has been successfully designed with a diesel motor driving source of 6.5 hp, 2200 rpm. Applied a rotational speed of 50 rpm will give the best percentage of threshing products. The increase in rotational speed applied to the threshing machine will be in line with the rise in the engine capacity. In addition, the fuel consumption of a diesel engine from this thresher machine is 0.039 l/hr.
Diversity of Benthic Organisms on Artificial Reef Structure
Authors: Hudatwi M , Syari I A , Utami E , Nugraha M A , Akhrianti I , Pamungkas A 
Published: December 2021

Abstract
One of the methods of a marine rehabilitation program to accelerate the recovery of damaged coral reefs is to make artificial reefs as a new coral growth substrate. Interestingly, many benthic invertebrates overgrowth the artificial reef structures. The purpose of this study was to investigate the benthic organisms encrusting the artificial reefs including the cement and iron substrates. In June 2018, 10 artificial reef structures were deployed in 7-8m depth around Putri Island, Belinyu, Bangka Regency. The artificial reef structures were made in the form of an iron frame with a cement concrete weight. Colonization of sessile benthic organisms is generally marine invertebrates; Scleractinia corals, sponges, bivalves, hydrozoa, bryozoa, soft corals, gastropoda, crinoid, ascidian, and gorgonian. Natural recruited coral Pocillopora sp. was found in all artificial reef structures with colony sizes 3-8cm and surprisingly only coral pocillopora found adhered in iron frames and sinkers. The other benthic organisms are sponge, crinoid, and bryozoa with the number of densities are 2 organism/m2. Meanwhile, the lowest benthic density are groups of Mollusc and Ascidian with organism/m2. The type of succession that occurs in this research was likely a primary succession. The preference of benthic organisms among reefs appeared to be related to the proximity of natural hard-bottom habitat and type of iron and coating materials.
Environmental management and the implications to the plant varieties protection in Bangka Belitung Islands
Authors: Darwance D , Sari R , Anwar M S 
Published: December 2021

Abstract
Plant varieties protection is one of intellectual property rights branches providing protection to breeders, a people who carries out research and testing or the activity of discovering and developing a plant variety to produce new variety. In addition, it also known local varieties, namely varieties that already exist and are cultivated from generation to generation by farmers, and belong to the community. Varieties cannot be protected if one of them on the contrary to the environmental sustainability. On the other hand, the environment is one of the problems faced by the people of Bangka Belitung Islands until now, especially when it is associated with mining activities. This empirical juridical research method analyzes how the impact of environmental protection and management efforts towards the efforts to protect plant varieties in the Bangka Belitung Islands. The result of the research indicates that the damaged environment due to massive mining has implications to the protection of plant varieties in this area. The clearing of land plots and housing that has been happening lately also has implications, either cleared or built on land that was originally primary forest or built on land that was originally a plantation consisting of local varieties.
The effect of shape toward characteristics of cerium-iron-boron thin layer
Authors: Indriawati A , Sari R , Sulanjari  
Published: December 2021

Abstract
The development of spintronic devices in the magnetic memories industry has attracted researchers over decades. Therefore, researchers are trying to obtain materials which compatible to improve device performance. These materials are made in the form of thin layer. Cerium-iron-boron (Ce-Fe-B) alloy is one of potential materials to be applied for magnetic devices. In this study, the nucleation changes in the Ce-Fe-B thin layer were analyzed using circular and rectangular shapes. This phenomenon was observed through micromagnetic simulations. The magnetic moment stability of Ce-Fe-B was analyzed based on the response of the magnetic moment towards the presence of an external magnetic field. The magnitude of applied external magnetic applied is 0.4 Tesla in x-axis direction. Changes in the arrangement of magnetic moments due to external magnetic fields produce magnetization and anisotropy energy value which describing the characteristics of the Ce-FeB thin layer. Magnetization value of Ce-Fe-B thin film in circular shape was greather than rectangular shape. These value was 0.98 for circular shape and 0.93 for rectangular shape. On the other hand, anisotropy energy value on magnetic external apllied 400 mT, circular shape anisotropy energy’s value of Ce-Fe-B was 4.85×10-18 J, and 6.71×10-18 J for rectangular shape.
Groundwater vulnerability assessment and mapping in shallow groundwater
Authors: Aribowo K , Wilopo W , Barianto D H 
Published: December 2021

Abstract
The increasing population density can contaminate groundwater. So far, groundwater is still the primary source to fulfill clean water and drinking water in Muntilan, Salam, and Ngluwar Sub-District. Studies on groundwater vulnerability are essential to minimize the contamination risks as a piece of basic information for land use planning. This research aims to assess groundwater vulnerability in Muntilan, Salam, and Ngluwar Sub-District. The simple vertical vulnerability (SVV) method with GIS was selected to develop a groundwater vulnerability map. The parameters of this method consist of the type of soil/rock, the thickness of the water-unsaturated zone, and the recharge value. The results show that the research area can be divided into three vulnerability classes: very low, moderate, and high groundwater vulnerability. Very low groundwater vulnerability has a value of more than 70 with very high protection effectiveness. The class is distributed in Muntilan and Salam Sub-Districts. Moderate groundwater vulnerability has a value less than 35 to 65 with moderate protection effectiveness, and high groundwater vulnerability has a value ranging from 24 to 35 with low protection effectiveness. Both of the class is evenly distributed in Muntilan, Ngluwar and Salam Sub-Districts.
Removal of Congo Red and Procion Red Using Zn/Fe Pillared Bentonite
Authors: Desnelli  , Asri W R , Hasanudin  , Said M , Hariani P L 
Published: December 2021

Abstract
The process of pillarization of metal oxide Zn/Fe compounds in bentonite has been carried out. The study of adsorbent weight, pH, adsorption time, and initial concentration were investigated to get the optimum reduction of Congo red and Procion red concentration. In addition, the pseudo kinetic also determined to investigate the rate and type of adsorption. From the experiment, the optimum conditions for removal of Congo red for the adsorbent weight, pH, and adsorption time were 0.02 g, 2, 20 minutes, respectively, while for the removal of Procion red was 0.04 g, 2, 20 minutes, respectively and both of adsorbent followed the pseudo-second-order model kinetics with chemisorption mechanism. Although the optimum conditions for removal of the two dyes were similar, in fact the percentage removal of the Congo red dye was greater. In conclusion, the Zn/Fe pillared bentonite was more suitable for the removal of the Congo red than Procion red.