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2021 ◽  
pp. 69-107
Author(s):  
Anton A. Abushin ◽  
◽  
Gennady I. Erdnenov ◽  

The article presents the results of the Steppe Eagle (Aquila nipalensis) study in the Republic of Kalmykia. 135 breeding territories of eagles were examined and 155 birds were observed during summer registrations and counts. The average distribution density of the occupied breeding territories in 2021 in the main part of the area was 2.15 (1.54–2.99)/100 km², in the zone of the large number of food resources – 5.72 (4.45–7.35)/100 km². The percentage of occupied breeding territories was 71%, and 43% of the occupied territories were successful. The number of nestlings in broods ranged from 1 to 3, averaging 1.81±0.69 per successful nest (n=43) and 0.73±0.95 per occupied nest (n=105). The percentage of nests with dead clutches and nestlings was high at all surveyed plots. The main diet of eagles during the breeding period included the Little Ground Squirrel (Spermophilus pygmaeus) (44%) and several additional prey items. A preliminary assessment of habitat suitability for the Steppe Eagle in terms of food conditions was carried out using GIS methods. Based on the registration data and clarification of the breeding range borders (47086.7 km²), the number of the Steppe Eagle in Kalmykia was re-estimated at 789 (587–1059) pairs. The signs indicating a negative trend in the population intensified: the percentage of immature birds in breeding pairs was 27%, the percentage of abandoned breeding territories was 19%. There is a consolidation of breeding groups in the population nucleus with a simultaneous decrease in breeding density at the periphery. Among the negative anthropogenic factors in 2021 there were the following: mass mortality on power lines, destruction of the food potential by the locals, disturbance during breeding, probable taking away of nestlings from nests.


2021 ◽  
Author(s):  
◽  
Jacob Eric Daubé

<p>Evidence in New Zealand suggests that spatial access to aged residential care facilities (ARCFs) has been declining. Poor spatial access to facilities has been shown internationally to lead to reduced frequency of visitation by family and friends, and in turn poorer mental health and wellbeing of people in care. However, the New Zealand population is ageing and older people are increasing as a proportion of the total population. Subsequently, total demand for ARCFs is set to increase dramatically and a substantial number of facilities will likely need to be built by 2026. The intent of this thesis is to explore how geographic information science (GIS) methods can be used to identify potential locations for these ARCFs in New Zealand so that travel time for friends and family is minimised.  Providers were surveyed on the relative importance of a series of spatial attributes when deciding where to place new facilities. Maps for each spatial attribute were generated from their preferences and overlaid using weighted linear combination and areas exceeding a suitability threshold were identified as potential locations. To choose optimal locations, maximal covering location-allocation models were used based on projected populations and demand for 2026. The spatial accessibility of these locations was then compared to the spatial accessibility of facilities in 2011. The results suggest that GIS methods have the potential to improve the spatial access to ARCFs to friends and family of people in care.</p>


2021 ◽  
Author(s):  
◽  
Jacob Eric Daubé

<p>Evidence in New Zealand suggests that spatial access to aged residential care facilities (ARCFs) has been declining. Poor spatial access to facilities has been shown internationally to lead to reduced frequency of visitation by family and friends, and in turn poorer mental health and wellbeing of people in care. However, the New Zealand population is ageing and older people are increasing as a proportion of the total population. Subsequently, total demand for ARCFs is set to increase dramatically and a substantial number of facilities will likely need to be built by 2026. The intent of this thesis is to explore how geographic information science (GIS) methods can be used to identify potential locations for these ARCFs in New Zealand so that travel time for friends and family is minimised.  Providers were surveyed on the relative importance of a series of spatial attributes when deciding where to place new facilities. Maps for each spatial attribute were generated from their preferences and overlaid using weighted linear combination and areas exceeding a suitability threshold were identified as potential locations. To choose optimal locations, maximal covering location-allocation models were used based on projected populations and demand for 2026. The spatial accessibility of these locations was then compared to the spatial accessibility of facilities in 2011. The results suggest that GIS methods have the potential to improve the spatial access to ARCFs to friends and family of people in care.</p>


2021 ◽  
Vol 13 (21) ◽  
pp. 12286
Author(s):  
Carlos Romero ◽  
Clara Zamorano ◽  
Emilio Ortega ◽  
Belén Martín

Investments in high-speed rail (HSR) development contribute to reducing regional disparities and improving territorial cohesion. When studying the efficacy of HSR investments, the travel time (and effort) spent on getting to and from the HSR station is crucial. In large urban areas there may be more than one station, and a peripheral station may complement the central stations and become a powerful vector for development. The rationale of this paper revolves around the possibility of applying a methodology based on generalised cost (GC) functions to study the advantages of new HSR-related projects in different locations. With this aim, we evaluate a real example in Seville (Spain) to determine whether the improvement in metropolitan accessibility to HSR services justifies the implementation of a new peripheral station, using a methodology to assess the territorial accessibility based on GC functions and modal travel times obtained with GIS methods, followed by an economic assessment based on a cost-benefit analysis. The paper ends with the main conclusions and a discussion of the methodology applied, the reductions in generalised costs resulting from the new station, the relevance of the case study, the limitations of the approach and further research stemming from this study.


Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7156
Author(s):  
Marek Helis ◽  
Maria Strzelczyk ◽  
Wojciech Golimowski ◽  
Aleksandra Steinhoff-Wrześniewska ◽  
Anna Paszkiewicz-Jasińska ◽  
...  

Marginal land is the area remaining in agricultural use, which is not suitable for food production because of its unfavorable ecological, anthropological, and economic conditions. A certain amount of such land exists in mountainous areas. An analysis was undertaken on the example of the Polish Sudeten mountain range of energy use. The study aimed to estimate the biomass potential for the efficient use of agricultural land in mountain areas. The characteristics of the Polish Sudeten Mountains mountain range were characterized using Geographic Information System (GIS) methods. The Polish Sudeten Mountains covers an area of 370,392 ha, 95,341 ha of which is arable land, 35,726 ha of which is class 5 bonitation land with a northern exposure of 19,030 ha and southern exposure of 16,696 ha. Depending on the sowing structure, we can obtain 331,639 tons/year of dry biomass (Miscanthus sacchariflorus on the southern and Helianthus tuberoses on northern exposure). Fertilization levels will significantly affect low yielding plants, and water stress significantly reduced yields in all cases. Due to the steep slope of the 5th-grade halves and intensive rainfall in the mountain region, the establishment of perennial plantations is recommended. The research shows that after the first year of cultivation, yields of 9.27 tons/ha of dry matter can be obtained with a low yield of trees, shrubs and perennials.


2021 ◽  
Vol 10 (10) ◽  
pp. 638
Author(s):  
Cemil Atakara ◽  
Mitra Allahmoradi

Urban morphology studies generally study how a city grows and transforms to embody its embedded history. This study examines the potentials of using space syntax and GIS methods to study the morphological evolution of traditional city centers throughout the historical periods. Using space syntax properties, human activities and movement patterns in the city can be investigated, typically by considering the degree to which urban spaces are integrated and connected. Through the syntactic analysis of street networks, urban planners can derive a better comprehending of the evolution of urban growth, and gain new insights to help with the new urban development. Space syntax theory and tools can extend the modeling capabilities of GIS, particularly in terms of the development of new advances and experimentation in the analysis of street network systems. Indeed, this study brings academic rigor and attention to details in the spatial growth and morphological evolution in the case of Famagusta city. The finding of this study will redound to the advantage of society considering that socio-economic processes and physical configuration play a significant role in the evolution of a city.


2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Ali Mahdi ◽  
Domokos Esztergár-Kiss

Finding the place of accommodation is one of the most crucial issues during a journey. This study aims to support the decision-making of tourists for choosing the optimal accommodation by combining fuzzy analytic hierarchy process (FAHP) and geographic information system (GIS) techniques. The adopted criteria are the cost per room, the distance from the center, the level of security, the place rating, and the availability of free cancellation and breakfast. Due to some uncertainty and diversity of criteria, the FAHP approach is applied to consolidate tourists’ decisions by applying criteria weighting, while the GIS is used to overlay the weighted criteria and to visualize the ranked places of accommodation on a map. The combined technique is applied on a case study in Budapest City, where the analysis is conducted on 364 places of accommodation. The results show that half of the places are recommended for tourists, and more than fifth of the accommodations are highly recommended. Furthermore, it can be concluded that the cost per room was the highest influential criterion with 0.233 importance weight, followed by the security level with 0.205. The lowest factor affecting the choice of accommodation was the free cancellation service. It was demonstrated that the rating weight importance was 0.182, while the breakfast and the distance from the center had approximately the same importance. As a recommendation, some improvements on the accommodation, such as decreasing the cost per room, enhancing the services, or developing the quality of the places, would increase their attractiveness for tourists.


Author(s):  
Giuseppe Cosentino ◽  
Francesco Pennica ◽  
Emanuele Tarquini ◽  
Giuseppe Cavuoto ◽  
Francesco Stigliano

MzSTools is a plugin for QGIS developed by the National Research Council (CNR) as part of the activities concerning the coordination of seismic microzonation studies in Italy. It train from the need to create a practical and easy-to-use tool to carry out seismic microzonation (SM) studies by producing standards compliant geographic database and maps, thus making them accurate, homogeneous and uniform for all municipalities in Italy. A geodatabase based on SQLite/SpatiaLite Relational Database Management System (RDBMS). It has been designed to collect and store data related to elements such as: geognostic surveys; bedrocks and cover terrains; superficial and buried geomorphological elements; tectonic-structural elements; elements of geological instability such as landslide zones, liquefaction zones and zones affected by active and capable faults; homogeneous microzones in seismic perspective, microzones characterized by a seismic amplification factor. The QGIS plugin provides tools such as data entry forms designed with Qt Designer; a QGIS project template with layers, symbol libraries and graphic styles; layouts for the SM Maps. MzSTools assembles in a single software environment a set of useful tools for those who work in. The plugin is open source, whose code hosted on the GitHub platform, and is published via the official QGIS plugins repository (https://plugins.qgis.org/plugins/MzSTools/).


2021 ◽  
Author(s):  
Emma Brownlee

This article analyses the use of grave goods in burials across early medieval Europe and how that use changed over the course of the 6th to 8th centuries CE with the widespread transition to unfurnished burial. It uses data gathered from published cemetery excavation reports from England, France, Germany, Belgium, Switzerland, and the Netherlands. The grave good use in these cemeteries was analysed using GIS methods to visualise regional differences, as well as statistical methods to analyse how grave good use evolved over time in those regions. This analysis revealed clear regional distinctions in grave good use, with England and Alamannia appearing similar, with relatively high levels of grave good use. Meanwhile, parts of Frankia and of Burgundy had considerably lower levels of grave good use. Distributions of individual artefact types tended to match those of overall numbers, but there were a few key exceptions, such as vessels, which followed a quite different pattern, being found in high numbers along the Frankish coast, but in much lower numbers elsewhere. Despite these overall trends, there was still considerable intra-regional and intra-cemetery variation that suggests communities and individuals had the ability to make highly individual choices about the way to bury their dead, along with the ability to subvert local norms. It also revealed that while there was a general decline in the use of grave goods across this period, and everywhere eventually reached the point of almost completely unfurnished burial, this decline occurred at different rates. In particular, there was a zone around the North Sea, including Kent, western Frankia, and the Low Countries, where there was little change in grave good use until it was suddenly abandoned in the early 8th century. Different types of objects declined at different rates across different regions, with few clear trends, suggesting that only personal accessories held a common significance across Europe; the meanings of all other object types were negotiated on a local basis.


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