Yazar "Eroglu, Engin" seçeneğine göre listele
Listeleniyor 1 - 4 / 4
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Analysis of activity, space and user relations in urban squares(Sage Publications Ltd, 2020) Acar, Habibe; Yavuz, Aysel; Eroglu, Engin; Acar, Cengiz; Sancar, Cenap; Degermenci, Ahmet SalihWith the increasing density of built spaces in urban areas, the need for open spaces increases every day. Squares are one of the most important of these open spaces. Urban squares allow various activities and exhibit functional differences based on location and culture. The diversity of activities conducted in squares is extremely important for the quality and viability of liveable urban spaces. Urban residents prefer spaces that are suitable for individual requirements and desires and allow for a variety of activities. These spaces also contribute to social life. This article aimed to determine the user profile, occupancy, facilities and activity diversity at the Ataturk Plaza (Trabzon urban square) in Trabzon, the capital city of Trabzon Province, Turkey. The occupants of the square and their numbers were analysed via the behaviour observation method. As a result of the observations conducted in the square over one year, 17 activities were identified. The majority of these activities were necessary activities and that the most common activity was walking. The occupancy density and distribution in the square were analysed using the Geographical Information System (GIS). These research findings and analyses could serve as a guide for future urban square and urban open space designs.Öğe Bird diversity along a riparian corridor in a moderate urban landscape(Elsevier, 2020) Keten, Akif; Eroglu, Engin; Kaya, Sertac; Anderson, James T.Civilization built around rivers directly affects riparian corridor structure and ecology. Degradation, pollution, and deterioration along riparian corridors in urban landscapes change species composition and biodiversity. Birds are one of the most vulnerable taxa to ecological changes. The main objective of our study was to spatially compare bird species richness, abundance, and community structure along the Asar River, an urban riparian corridor in Duzce, Turkey. We identified 63 bird species, comprising 6722 individuals, and classified them into one of three groups: generalist species (11 species), woodland species (40 species), and waterbird species (12 species). Bird species richness was positively related to vegetative cover and negatively to urbanization. Richness was low in the winter and was higher during spring and summer. Riparian Quality Index (RQI) scores (mean = 54.8 +/- 33.7; max. = 97 and min. = 5) were relatively low for all sampling plots and was reduced by human activities (e.g., roads, farmland, settlement). The number of woodland bird species changed positively (r = 0.71) with RQI. The generalist bird species, adapted to urbanization, were more common around settlements and open areas. Human population and settlement around Asar River increased one-third and farmland and natural habitat decreased onefifth during the last decade. The area has high potential for growth and increased urbanization, thus increasing the pressure on the natural areas. Activities that diminish the amount of tree cover in the riparian corridor should be avoided. Habitat restoration and rehabilitation will increase RQI values, which can be used as indicators for bird richness in urban landscapes and benefit avian diversity along the riparian corridor. The existing riparian corridor and any enhancements to the corridor will help conserve Duzce's biodiversity in the future.Öğe Evaluation of flood risk analyses with AHP, Kriging, and weighted sum models: example of capakcur, Yesilkoy, and Yamac microcatchments(Springer, 2021) Meral, Alperen; Eroglu, EnginThe present study aims to use the Bingol city center and agricultural plain as a base in future flood management plans and scenarios through flood modeling. In accordance with this purpose, the precipitation map of the catchment was prepared using the Kriging method by assigning values, with the Schreiber formula. Then, the slope, aspect, distance to the stream, land use, geology, soil, and precipitation maps were classified according to the analytical hierarchy process, and consistency indices and consistency ratios were calculated; thus, the factors affecting the flood were ranked as precipitation (CI 0.324), distance to the stream (CI 0.207), slope (CI 0.168), geology (CI 0.101), soil (CI 0.091), land use (CI 0.087), and aspect (CI 0.022). In the last step, consistency indices calculated by the AHP method were superposed on the weighted sum method, and then flood risk analysis was performed.Öğe Soil organic carbon exchange due to the change in land use(Springer, 2024) Basaran, Nermin; Cinal, Gamze Akdogan; Eroglu, EnginThis study analyses the decrease in soil organic carbon (SOC) stocks due to changes in land use following the earthquake in D & uuml;zce, Turkey, 1999. The primary objective of the study is to determine the changes in land use within D & uuml;zce and to provide a multi-dimensional approach to the spatial and quantitative distributions of SOC losses. Corine Land Use- Land Cover (LULC) within the study is used to determine the change in land use. The loss of LULC and carbon stocks were identified by means of LULC with transfer matrix method and GIS-based analysis. The study of land-use change caused by urbanisation and agricultural activity shows that the limited green spaces around the urban core created by degrading natural areas do not compensate for the loss of SOC. SOC stocks decline after the land use changes from agricultural regions to artificial areas (- 5%), Natural- Semi-natural (N-SN) regions to artificial areas (- 15%), N-SN areas to agricultural areas (- 20.9%) and agricultural areas to water bodies (- 9%), and SOC stocks increase after land use changes from artificial areas to N-SN areas (+ 29.6%), artificial areas to agricultural areas (+ 8%), agricultural areas to N-SN areas (+ 25%). However, in some agricultural areas, SOC stocks are similar to semi-natural and natural areas. For instance, in sparsely vegetated areas, SOC stocks from fruit and berry plantations may be poor. Although it is generally assumed that SOC loss can occur on land transformed from natural areas, this rule of thumb may be revised in some particular circumstances. Therefore, local ecological restoration decisions should not be based on land cover generalisations.
