bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hypocenter Determination of Volcano-Tectonic (VT) Earthquake around Agung Volcano in Period October-December 2017 Using a Non-Linear Location Method: A Preliminary Result
Authors: Rahsetyo P P , Sahara D P , Nugraha A D , Syahbana D K , Zulfakriza  , Ardianto  , Martanto  , Afif H , Baskara A W , Hermawan I B , Sasongko A D 
Published: November 2021

Abstract
Agung is one of active volcanoes in Indonesia, located on island of Bali. Since 1963, Agung has not had significant activity, until in September 2017 the volcano was active again which was marked by increased seismic activity and eruptions in November 2017. Therefore, to analyze the dynamics and processes of active volcanic eruptions requires an understanding of the structure of the volcano, especially the position of the magma reservoir and its path. The depiction of the structure of this volcano can be analyzed by determining the location of the earthquake due to volcanic activity, especially Volcano-Tectonic (VT) earthquake. In this study, we determined the location of the hypocenter around the Agung using the non-linear location method. VT earthquakes have similar characteristics to tectonic earthquakes so this method can be used to determine the initial hypocenter. The data used in this study came from 8 PVMBG seismographs from October to December 2017. We manually picking arrival time of P- and S-waves from the 3948 VT events found. Pair of P and S wave phases with 18741 P-wave phases and 17237 S-wave phases, plotted in a wadati diagram resulting in a vp/vs ratio of 1.7117. We use 1D velocity models derived from Koulakov with the assumption that the geology of the study area is not much different from the volcanoes in Central Java. The resulting hypocenter distribution shows a very random location and has uncertain X, Y, and Z directions from a range of 0 to 91 km. This study limits this uncertainty to 5 km resulting in a more reliable earthquakes distribution of 3050 events. The results indicate 2 clustered events, a swarm of VT events that occur every month at a depth of 8 to 15 km and there are 2 paths that lead to the top of Agung and SW of that swarm. These preliminary results will be used to update 1D velocity model and relocate the events beneath Agung region for further studies.
Urban landscape for birdwatching activities
Authors: Kurnia I , Arief H , Mardiastuti A , Hermawan R 
Published: November 2021

Abstract
Urban landscapes are usually dominated by built spaces and human-made vegetation, which different from natural landscapes. This difference will affect the composition of birds that can be found in the urban landscape. For birdwatchers, birds are the main object in birdwatching activities. The objectives of this paper were to analyze the feasibility of urban landscapes for birdwatching activities and find out the characteristics of urban landscapes favored by birdwatchers in four cities in Java (Bogor, Sukabumi, Bandung, and Surabaya). Birdwatchers’ site preference and perception were surveyed through online questionnaires in February through May 2020 (n=1,247 respondents). Surveyed data revealed that birdwatching sites’ size varied between 0.05 and 76.82 ha, mainly urban forests and city parks. Most of the urban landscape was habitat to various bird species typical of the urban landscape (e.g., Eurasian tree-sparrow, Cave swiftlet, Black-headed Bulbul). Raptors (e.g., Black-thighed Falconet) are found in several locations. Among the respondents, 25 % (n=309) had previously conducted birdwatching activities in urban landscapes, while 72.0% (n=808) expressed their interest in birdwatching in urban landscapes, indicating that urban landscapes was feasible for birdwatching. The most favorite locations were the Bogor Botanical Gardens, Darmaga Research Forest (both in Bogor), Merdeka Field Park, Cikundul Agrotourism Area (Sukabumi), Bandung Zoo, Babakan Siliwangi City Forest (Bandung), Bungkul Park, and Flora Park (Surabaya). Characteristics of sites favored by birdwatchers were a shady area, not noisy location, and any facilities for birdwatching. The diversity of bird species did not became the main reason.
The role and importance of plant purification systems in the ecological approach to landscape design
Authors: Dika I R , Rimac M 
Published: November 2021

Abstract
The continuous city expansion and use of various impermeable pavement materials greatly hinder the rainwater surface runoff by conventional drainage systems, especially during heavy and extreme precipitation, which is occurring more frequently. Also, mostly as a rule, natural watercourse discontinuity and/or their canalization results in more frequent floods in cities. An additional problem is rainwater pollution, which, with conventional drainage systems, ends up in natural watercourses, rivers, lakes and seas often without any or even minimal treatment. These are some of the main reasons why rainwater management is becoming an increasingly more important and indispensable segment of contemporary sustainable city development. Among many other approaches, it also includes conventional rainwater drainage systems replacement and the application of biological rainwater treatment systems as much as possible. The positive impact of sustainable and environmentally friendly rainwater treatment systems has already been widely recognized. However, their application is still slightly limited compared to the problems that occur in modern cities. The aim of this paper is to present biological rainwater treatment systems (basic categories and characteristics) and to analyze their implementation possibilities in urban green areas. Their ecological and aesthetic values will be considered, and how users generally perceive structures of ‘natural’ characteristics within designed landscapes will be discussed. The analysis of fourteen recently constructed parks will be carried out to determine the ways of integrating biological purifier systems in the park, the possibilities of their use, and the degree of biological purification systems influence on the overall park design concept. Criteria or guidelines that should be taken into account when designing biological rainwater purification systems will be proposed in order to simultaneously meet their basic function and other roles of such structures within the city park.
Response of bird community to gradual landscape transformation in Darmaga campus, IPB University, Bogor, Indonesia
Authors: Nugroho S P A , Mardiastuti A , Mulyani Y A , Rahman D A 
Published: November 2021

Abstract
When a landscape gradually transforms, the bird community that inhabits the landscape will also adapt and change accordingly. Long-term data on the bird-habitat relationship, however, is still lacking in the sub-urban tropical areas. The objective of this paper was to analyze the response of bird community along with the gradual transformation of the landscape. Darmaga Campus of IPB University (± 2.67 km2) was selected as the study area due to its landscape transformation for campus development/construction, and the availability of bird monitoring data. Data on landscape transformation were gathered from the IPB building construction book published in 2017, and bird community (1982-2020) were gathered from published reports and papers. During the observed period, Darmaga Campus that initially consisted mostly of old rubber plantation has been gradually transformed into various academic-related uses, such as some areas for buildings dan field laboratories. From 1982 to 2020, the cumulative bird species in the study area at least was 124 species. During the observed years, the bird community was highly dynamics (bird species number in 1982 = 41 species, 1985 = 39 species, 1986 = 68 species, 1991 = 68 species, 2001 = 39 species, 2003 = 72 species, 2013 = 52 species, 2020 = 99 species). New incoming species were Chestnut-winged Cuckoo, Asian Brown Flycatcher, Tiger Shrike, and babblers (e.g., Black-capped Babbler); Brown Shrike, White-rumped Shama, Oriental Magpie-Robin and Green Junglefowl have not been observed or have become increasingly rare in the last ten years. Meanwhile, Red-breasted Parakeet, Fulvous-breasted Woodpecker, Sunda Pygmy Woodpecker, Black Drongo, and Sooty-headed Bulbul are always present species. Bird species such as Orange-headed Thrush, White-rumped Shama, White-browed Shortwing, and Velvet-fronted Nuthatch are species that entered to rarely found species. Gradual landscape transformation, from an old rubber plantation into a mosaic of small patches of human-made ornamental plants, shrub, and tree plantation, turns out to be beneficial for some bird species, but could also disadvantageous for others, causing a dynamic bird community composition.
Spatial development of Russia and international transport corridors
Authors: Tulokhonov A K , Mikheeva A S , Batomunkuev V S , Boldanov T A 
Published: November 2021

Abstract
The article analyses the current system of transportation, which is mainly focused on raw material exports. The structure of Russian railways transportation and the volume of raw material supplies to China have been discussed. It is noted that the coming decades will bring a reduction in hydrocarbon power generation and a transition to a green economy, which will inevitably reduce global demand for Russian hydrocarbons. Plans for the development of Russian transport systems and their place in international transport corridors, risks and limitations of major transport flows through the Suez Canal and the Northern Sea Route have been presented. We propose to consider opportunities to optimise freight traffic and reduce the cost of new transport construction, primarily by reducing empty runs and reducing international transport competition.
Territorial analysis of structural and sectoral shifts in the steppe Russian-Kazakh cross-border region
Authors: Sokolov A A , Rudneva O S 
Published: November 2021

Abstract
The most important aspect for sustainable development of cross-border territories is a balanced sectoral structure of the economy. At the current stage of development, processes of transformation and restructuring of the economy occur in the Russian-Kazakh cross-border region, resulting in structural and sectoral shifts that expand the spatial division of labour and shape the further specialization of the region. This paper studies transformation of the sectoral structure of the Russian and Kazakh border regions by the main types of economic activity, including various components of the productive and non-productive sectors (manufacturing, mining, energy, trade, transport, agriculture, etc.). As a result, we found a structural and sectoral restructuring of the economy in the transboundary regions, affecting a wide range of different industries, while at the same time the regional economy experienced a catching-up phase, the share of the non-productive sector was growing, and the share of industry and agriculture, although declining, remained high.
The multi-dimensional nature of Tatarstan’s entry into the trans-continental transport corridor
Authors: Samigullina G S 
Published: November 2021

Abstract
The aim of the article is to reveal the problems of the Republic of Tatarstan’s entry into the transcontinental transport corridor, taking into account the infrastructural potential of the republic. The following factors provide opportunities for integrating Tatarstan into the global transport network: positioning the republic as a globally competitive and sustainable region with a favourable investment climate, a national tourist rating, a favourable physical, economic and geographical location, a significant share of transport services in the gross domestic product, and the availability of logistics centres and terminal and warehouse complexes. The construction of the transport corridor Europe – Western China – part of Russia – Kazakhstan – China section will allow Tatarstan to be included in transcontinental transportation. The article also touches on environmental issues, recognising the importance of people living in harmony with nature. There are about 30 settlements in the route’s area, some of them will be divided, it is necessary to consider nature conservation areas: rivers, woodlands, natural zoological (hunting) reserves and natural monuments of regional importance, emission load factor of chemical carcinogens in atmosphere and level of traffic load.
Assessment and mapping of demographic potential of urbanized territories of the Baikal-Mongol region
Authors: Vorobyev N V , Vorobyev A N 
Published: November 2021

Abstract
This article provides an assessment of the demographic potential of the Baikal-Mongolian region, which unites the adjacent territories of the two countries. The cores of the research site are the urbanized territories of Irkutsk, Ulan-Ude and Ulan-Bator, and communications are railways and highways connecting the main centres. The demographic potential is characterized by the level and possibilities for the development of demographic processes and population structures, and mainly numerous quantitative characteristics of the population of the territory are used. The authors limited themselves to using quantitative characteristics of the demographic potential according to statistical data for 2019–2020 within the territories of the municipal districts and urban districts of the Irkutsk region, the Republic of Buryatia and aimags of Mongolia. Data on density and proportion of urban population reflect the size of the main urban areas. Data on demographic processes reflect the characteristics of the natural and migration movement of the population. Demographic structures are represented by the age structure and the demographic load of the working-age population, which is minimal throughout Mongolia and in the suburbs of Russian regional centres. Generalizing characteristics of demographic potential calculated from the average sum of individual indicators.
Assessment of the geomorphological safety of the Daurian region for the purpose of effective nature management
Authors: Bazhenova O I , Tyumenseva E M , Tukhta S A 
Published: November 2021

Abstract
The risk assessment of the dangerous geomorphological processes development in the Dauria steppes in conditions of pronounced cyclical fluctuations in climate and high dynamism of geomorphological systems is carried out on a five-point scale. The analysis of the spatial and temporal structure of fluvial and aeolian processes for the purposes of nature management is fulfilled. The role of extreme geomorphological events is shown, which are a serious limiting factor of conflict-free nature management in the Daurian region. The revealed catastrophic manifestations of fluvial and aeolian processes require careful planning of economic activities and serious environmental protection measures. The result of the assessment is the zoning of the Dauria territory according to the degree of geomorphological risk. The types of economic activities that do not violate the stability of the regime of geomorphological systems, and, on the other hand, are undesirable, increasing the risk of critical natural situations, are indicated.
Impact of the mining industry on surface waters in the Arctic zone of the Republic of Sakha (Yakutia)
Authors: Ksenofontova M I 
Published: November 2021

Abstract
The article presents the results of hydrochemical studies of northern rivers of the Arctic zone of the Republic of Sakha (Yakutia). It was revealed that the background hydrochemical composition of surface waters in the study area is diverse: from hydrocarbonate-sodium waters in the North-West and hydrocarbonate-sulphate waters in the North-East of Yakutia. During the study of the microelement composition of surface waters in the Arctic zone, high concentrations of total iron, manganese, and copper are found everywhere, indicating their natural origin. In places where groundwater influence is observed we found that the characteristic elements are lithium, strontium and barium. Analysing the research results, we can say that each mining enterprise has its own specific effect on surface waters, which makes its own adjustments to the chemical composition of surface waters.
Some peculiarities of functional zoning in specially protected natural territories: case study of the Tunkinsky National Park, Russia
Authors: Budaeva D G , Sharaldaeva V D , B-Zh Maksanova L 
Published: November 2021

Abstract
As the global ecosystem protection agenda continuous to unfold, the topic of functional zoning of protected areas’ remains the subject of intensive discussions. The paper discusses the essence, specific features, key factors and actions taken to improve the functional zoning of national parks in Russia. On the example of the national park “Tunkinsky” it is shown how the functional zoning has changed since its creation and what factors influenced this process. The paper presents analysis of natural, historical, cultural, socio-economic, tourist-recreational and organizational conditions for functional zone allocation in the Tunkinsky National Park, as well as changes in the composition, naming, and area of the functional zones in the national park. Using the data from geolocation services, such as photos with a given geolocation posted by tourists in social networks, and GPS tracks of tourist routes, the authors prove the validity of changes in the functional zoning of the National Park, with an increase in the recreational zone, providing an optimal combination of nature conservation, tourist and recreational and economic functions was proved.
Navigational Atlas of the Selenga River section within Mongolian People’s Republic, 1925
Authors: Batotsyrenov E A 
Published: November 2021

Abstract
The article provides information on the manuscript atlas of the Selenga and Orkhon rivers within the Mongolian People’s Republic (MPR), compiled on the basis of data from 1924-1925. It was developed for the Selenga Technical Section of the Ministry of the River Fleet to guide navigation along the rivers of Mongolia. The shooting was carried out on a steam boat “Shilka”. The atlas is of interest for the dynamics of river channel processes in northern Mongolia. The materials provide information on where and how to carry out technical work to improve navigation. In addition to information on navigation, it provides economic and geographical information on the north of Mongolia in the 1920s.
Air pollution in the cities in Asian Russia: problems and prospects
Authors: Tsydypov V E , Gomboev B O , Motoshkina M A 
Published: November 2021

Abstract
in this article, we look at the issue of air pollution in cities in the Asian part of Russia, which are the industrial centres of the regions. Air pollution is shaped by a number of factors, including natural ones. In recent years, studies have been carried out in Russia and in foreign countries to determine the impact of pollutants emitted into the atmospheric air. There is a direct correlation between the state of public health and the amount of pollutants in the atmospheric air. Exceeding the maximum allowable concentrations in the air of territories threatens the life and health of people living in them. We have looked at the level of air pollution in cities, including the most polluted ones, and the measures taken by the government and large companies to mitigate the negative effects.
Historical-cultural education functions of geosystems of specially protected nature areas on the example of the Pribaikalsky National Park
Authors: Myadzelets A V 
Published: November 2021

Abstract
The paper considers the role of historical-cultural objects in the forming educational functions of geosystems. This task is essential for specially protected nature areas, where educational ecotourism activity is implemented. A model area is the Pribaikalsky National Park. We studied historical peculiarities of formation of the local natural complexes, socio-cultural and other anthropogenic processes that influenced the modern configuration of the park landscapes. The research revealed that various relief forms, geographic object location and vegetation have the primary role in determining the historical-cultural functions of geosystems. Modern socio-economic and tourist infrastructure, in contrast to old settlements, gravitates towards the local historical-cultural sites. The created geoinformation database includes different characteristics of the local historical-cultural objects. These are a type, location, availability, approximate historical time age and significance for educational tourism development. In the result we also presented a fragment of the schematic map of the historical-cultural, archaeological and other object significance for educational tourism on the one of the key plots of the Pribaikalsky National Park. The determining the historical-cultural functions of geosystems is important for assessment of the recreational potential of the territory and further mapping recreational and educational activity goals for national parks.
Biological activity of meadow-chernozem and sod-taiga permafrost soils of the Yeravninsky basin
Authors: Korsunova Ts D-Ts , Valova E E 
Published: November 2021

Abstract
The biological and biochemical parameters of two types of permafrost soils of the Yeravninsky basin (the carbon content of the microbial mass, different groups of microorganisms, protease, catalase and the intensity of cellulose decomposition) were studied, depending on the water-thermal properties and the type of soil formation. It is established that permafrost soils do not have an optimal combination of potential and real (actual) enzymatic activity. It is also noted that the acidic reaction of the soil solution and the low availability of nutrients in sod-taiga soils increases the development of fungal microflora. The most significant soil-ecological factor that determines the microbiological activity of meadow-chernozem and sod-taiga permafrost soils is humidity, as evidenced by a direct correlation. In turn, these microbiological indicators can be used for diagnostic assessment of the biological state of soils, and also, along with other soil properties, should be taken into account when developing methods to increase the productivity of existing hayfields and pastures on them.
Ultra-Short-term Power Prediction of the Wind Farm Based on Multivariate Data Combination
Authors: Jian Yong , Li Zhong , Li Biao , Cao Xuyuan , Zhu Jiayuan 
Published: November 2021

Abstract

Accurate
wind power prediction is an important way to promote large-scale wind power grid connection. First, to address the abnormal wind farm actual measurement data caused by wind abandonment and power limitation, the DBSCAN method is used to pre-process the wind farm actual measurement data and eliminate the abnormal data. Then, a short-term wind power prediction model with a combination of GA-LSSVM and ARIMA weights is established, and the Lagrange multiplier algorithm is used to obtain the weighted values of each single model in the combined model to further obtain the wind power prediction results. Finally, the effectiveness of the proposed method is verified by arithmetic examples, and the results show that the proposed model and method can effectively improve the prediction accuracy of short-term wind power.