Abstract - Instytut Geografii i Przestrzennego Zagospodarowania PAN

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Water flow in the Polish Carpathians was exemplified by long-term (1988‑2017) analysis of two foothill catchments (of the Skawinka and Stobnica) and two catchments in the Beskidy Mountains (of the Soła and Osława). The work allowed for the determination of the duration of low flows and outflow deficits in relation to changes in thermal and precipitation conditions, as well as land use and land cover. In the selected catchments, the 30-year period brought a decrease in the area of arable land and an increase in the area of grassland and forest. In addition built-up areas increased by 495% between 1990 and 2018. A greater susceptibility to the occurrence of total drought was noted for the Beskidy Mountains catchments, in which the duration of low flows and outflow deficit was greater than in the foothill catchments. At the same time, the mountain catchments proved less susceptible to the emergence of deep drought, on account of their higher levels of forest cover and levels of soil permeability. In regional terms, the durations of low flows and outflow deficits were greater in the catchments located in the eastern part of the Carpathians (those of the Stobnica and Osława), in line with this area’s intensified features of a continental climate.
Water-level fluctuations are among the primary factors determining the functioning of lakes. The volume to which lake basins are filled with water is of major importance to the courses of many processes and phenomena. A particular amount of water in a lake, and water-table stability, are also important from the point of view of human activity, as these elements help determine the quantity and accessibility of the water resources lakes have to offer, and therefore the possibilities for them to be used by different branches of the economy, e.g. industry, agriculture or tourism. The work detailed here is thus a presentation of trends as regards water-level fluctuations in 16 lakes in Poland, over the period 1956–2015. The study results, obtained for the first time in relation to such a long time scale and extending to around a dozen lakes, aim to point to the scale and direction of water-level fluctuations in times of the intensive transformation of the natural environment. They were obtained by reference to water-level observations made by the Institute of Meteorology and Water Management – National Research Institute (IMiGW-PIB). Specifically, data referring to the (November-October) hydrological year were analysed for trends as regards mean annual water levels using the Mann-Kendall test. Results point to major variability in the courses noted for these levels over the analysed multiannual period. Nevertheless, three overall situations could be designated from within the group of cases analysed, i.e. increase, decrease or lack of a trend. The first group includes Lakes Sławskie, Jamno, Łebsko, Nidzkie, and Studzieniczne (where increases were statistically significant at p=0.05); the second, Lakes Ostrzyckie and Ełckie (decreases significant at p=0.05); and the last group all remaining lakes, i.e. Charzykowskie, Jeziorak and Rajgrodzkie, Biskupińskie, Drwęckie and Białe, Gopło, Roś, and Wigry. It was, however, noted that in many cases analysed periods of alternating increase and decrease in water level were to be observed. The causes of such fluctuations were complex, but inter alia reflected droughts of several years’ duration, periods featuring higher-than-average precipitation, and local conditions. In general, water-level fluctuations in lakes result from natural and anthropogenic factors determining the hydrological conditions in catchments. And in the context of the lakes considered here, the courses of water-level fluctuations were mostly a reflection of local, rather than wider climatic conditions – a fact i.a. illustrated by the lack of cohesive regional designations. The situation is different from that of, for example, the thermal or ice regimes of Polish lakes, in relation to which observed similarities in properties are seen to be determined mainly by climatic factors. Information of this kind may be of key importance to the (quantitative and qualitative) management of water resources in the context of the climate change being observed currently.
Water storage reservoir in the Kluczbork municipality in Ligota Zamecka is located on the Stobrawa river. In 1997 the river flooded surrounding towns and villages. It was decided to build a reservoir that during successive flood states would protect residents. The aim of this study is to analyze the possibility of using water reservoir in Kluczbork municipality for recreation and tourism purposes. The results of two surveys conducted among residents of Ligota Zamecka have been analyzed. The residents could express their opinion about the project. The first questionnaire was conducted at the time when local community was only aware of the project to build retention and recreation reservoir in Kluczbork. The second survey was conducted when the reservoir was completed and filled with water. The results indicate the change in the attitude of inhabitants towards the reservoir – the opinions were mostly positive. They think that it would be a good promotion for the Kluczbork municipality. Moreover, the physico-chemical properties of water from the reservoir were examined. The samples were collected in the autumn and spring below the inlet of Stobrawa river into the preliminary tank and at the inlet into the main tank.
We present a training set, the database involving physical-chemical water parameters together with the subfossil Cladocera and diatoms community composition in the surface sediments of 64 postglacial lakes in NE Poland sampled along a wide trophic gradient (from oligo- to highly eutrophic). The most important water parameters measured in water were chlorophyll-a, electrical conductivity (EC) and oxygen concentration. In addition, total phosphorus (TP) and Secchi depth (SD) were determined for the surface water layer. The data collected will be used to calculate a transfer-function for quantitative reconstruction of trophic state in freshwater temperate lakes.
We studied the effects of landscape structure and agricultural land-use on ground beetles (Carabidae) in a temperate farmland mosaic and homogeneous landscape. The research was carried out at twelve research sites located in two regional units, i.e. (a) the northern part of mesoregion 842.72 West Lake District in the macroregion of the Lithuanian Lake District and (b) in the southern part of mesoregion 313.44 Damnicka Upland, within the macroregion of the Koszalin Coastland. By administrative division, these positions are respectively: in the gmina of Dubeninki, voivodeship of Warmian-Masury (Rogajny and Łoje), and in the gmina of Przerośl in Podlasie voivodeship (Rakówek) – hereinafter referred to collectively as the “Dubeninki area”; as well as in the gmina of Potęgowo in the Pomeranian Voivodship (villages of Wieliszewo, Malczkowo, Darżyno and Darżynko – hereinafter referred to as the “Potęgowo area”). Four of the research sites were located in fields of large area, and four in complexes of small fields subject to traditional cultivation. The faunistic data comes from 12 transects (6 for each regional unit and 3 for each field type – large-area fields and complexes of small fields) using standard trapping methods (Barber˙s traps). A set of landscape-structure indicators adapted to the local scale of the study was then applied. Results point to a relationship between the structure of the landscape, the expressed number of patches of plant communities, the diversity of vegetation in the surroundings and the presence of trees in the landscape, and species richness and diversity of ground beetles. Where agricultural areas nevertheless have a diversified landscape these are characterised by greater species richness of Carabidae than homogeneous areas. Furthermore, the shorter the distance to the nearest tree, the greater the species richness and diversity of Carabidae. However, soil type, as well as soil diversity, at a study site and its vicinity are not found to exert a direct impact on the species richness of Carabidae. Different soil types may be characterised by similar grain size, and thus similar humidity conditions and soil reaction, with these in turn determining other habitat conditions of importance to the studied taxon.
When estimating the reach of the flood zones, a mathematical model that describes the flood wave propagation, as well as the digital elevation models can be used. In this study, a two step approach has been applied. In the first step, in order to find the most relevant flooding areas, a one dimensional hydraulic model HEC-RAS has been used, which assumes steady state flow conditions and a discharge of Qp 1% = 7210 m3/s and Q p 0.1%= 9960 m3/s. The segment of the Vistula Valley analysed is 47.05 km long. In the second step, a smaller area has been analysed using the 2D hydraulic model of shallow water flow which is based on the Roe scheme of finite volume method.
When we speak about the role of infrastructure in networks, traffic corridors or internet might come to our minds. Nevertheless, a school is also a crucial element within local and regional infrastructure, through which many networks are created and reproduced. Moreover, the principle of a school in a network of relationships could be perceived from several different points of view, such as: 1) a school as a part of the educational system, interactions between institutions; 2) a school network in an area unit, its character and connections to other characteristics of the region; 3) the relationships between a school and its local/regional community, including children, parents or representatives of the municipality. Although geography has a lot to say regarding these issues, we find few articles dealing with geography of education, both in Czechia and throughout the world. Therefore, the aim of our contribution is to discuss the position of school within the types of networks mentioned, as an institution, which teaches individuals to act while simultaneously acting in its environment as well. Emphasis is placed on elementary schools and examples of research topics are presented.
While 70 forms created by debris flows have been mapped for the Polish part of the Karkonosze Mountains, only 14 of these have a known time of origin and have been described in available literature. The oldest registered and described flows occurred in 1964, as followed by further events in 1994, 1997, 2001, 2002 and 2006. In 2011-2012 and 2014. Lichenometric measurements were carried out for the forms created by debris flows in the Karkonosze Mountains, i.e. the Great Snowy Cirque, the Black Cirque of Jagniątków, the Small Tarn Cirque, the Łomniczka Cirque and the White Jar nivation niche, in order to investigate levels of activity over the past 150 years. The lichenometric dating was based around lichens of the Rhizocarpon group. A major obstacle proved to be the limited amounts of lichens, or even their total absence in the case of the youngest forms created by debris flows. An exception was the Łomniczka Cirque. On the basis of the lichenometric dating it proved possible to identify three phases to the activity of Karkonosze debris flows. The first of these was characterised by a high intensity of the processes studied, and was associated with the Little Ice Age. As in the Tatra Mountains, this phase was seen to end in the 1920s, and was followed by a period of relative calm, interspersed with a small number of debris flows in the 1930s and 40s, and then in 1964. The next phase of increased activity as regards the transport of rock material within the forms created by flows (and including new debris flows), began in the 1980s, and has continued through to the present day. The debris flows in the Polish part of the Karkonosze Mountains are thus characterised by a course of activity similar to that noted in the Tatra Mountains.
While a gradual increase in the permeability of the boundaries present in Europe was long seen as a linear process irreversible in nature, that situation in fact started to change around 2015. The process that then ensued reflected crises associated with influxes of refugees, the geopolitical situation in Ukraine, and then, from 2020 onwards, the COVID-19 pandemic. These changes might further be set against the two facts that there are, on the one hand, numerous locations in which cross-border or transboundary functional connections have become so strong that mechanisms hitherto acting in support of their development simply fail to suffice; as well as, on the other hand, many near-border areas that remain entirely peripheral. Pandemic circumstances made plain the inadequate level of institutional support extended to the development and functioning of transboundary functional areas, including as regards, their labour markets. And so to the articles brought together in the present edition of ‘Europa XXI’, which seek to address the above issues and derived research questions. They do this by way of both general reflection and the concrete results of research carried out on the situations in border areas, as well as the conditioning, level and structure of border traffic. Taken together, the texts presented here incline the reader to conclude that EU support for cross-border or transboundary cooperation needs redefining even in the present, and all the more so as we arrive at further programming periods. The support in question ought to be coordinated more effectively with Cohesion Policy as a whole, while also taking the global geopolitical context into account. It should also address matters of cross-border or transboundary public services, resilience in the face of crisis, and the natural heritage present in or constituted by border zones.
While border areas are usually perceived as peripheral in nature, denoting only a limited level of economic development, it is clear that a border location might also be in a position to offer measurable benefit. In that context, work described here in relation to Poland has focused in on: (1) the delimitation of border areas; and (2) an identification and subdivision of units into those whose location by a state border brings either positive or negative economic consequences. The criterion applied most often in designating border areas is administrative (cf. Kałuski, 1990), with different hierarchical levels referred to (e.g. the NUTS 3 where pursuit of the EU policy on Territorial Cooperation is concerned; or LAU 2 where the need is to designate areas characterised by small-scale border traffic, with account then taken of the criterion of distance of a given administrative unit from the border). Alongside the administrative, a second main criterion relates simply to physical distance from a border, and usually gains application in denoting a zone of particularly intensive scrutiny by the Border Guard and other state services such as the Customs Administration (e.g. in the United States). Use of this criterion actually does much to hinder scientific research, given the lack of concordance with units of administration. Neither of the divisions referred to above embraces real functional linkages, while the real-life zone of impact of a border is likely to be indicated by just such linkages, of a socioeconomic nature, and specific in the sense that other parts of a country do not manifest them (Węcławowicz et al., 2006). Such linkages would seem to offer a basis to determine, first, if border areas actually exist at all, and, second, how they can be delimited in a detailed way, by reference to multiple criteria. It is certain that a key aspect is involved here, as the attempt is made to set the benefits of a border location against the “non-benefits”. But it is clear that attention also needs to be paid to the configuration of internal interactions, as aspects of a border location become all the more unfavourable the more peripherally a given unit is located. Ultimately, it is possible to indicate which border areas are actually problem areas, and to set these apart from other areas by a border whose geographical position ensures that a border represents no barrier to development and/or does not determine peripheral status. For the above reasons, the work presented here does indeed propose a delimitation based on real economic linkage (levels of export), as well as the degree to which regional centres are accessible from the given area. The first stage of the delimitation procedure thus takes in the designation of a border area formed from a belt of Polish communes (LAU 2) “two deep”. A second stage then sees elimination from this set of those units with a favourable location vis-à-vis the nearest regional centre (s), it being assumed that the proximity of these centres helps even out any potentially negative impact of the border; as well as with a high value for the statistic regarding the value of exports to the neighbouring country (the assumption then being that such units benefit from a border location, rather than suffering as a result of it). Units left behind following the application of this procedure were deemed to be border communes of problem status, potentially in need of support if they are to develop. In the event, such units are found to be located primarily along Poland’s borders with the Russian Federation, Lithuania, Belarus and Slovakia (as opposed to Germany, the Czech Republic and Ukraine). Unsurprisingly, it is communes by the Polish-German border that are seen to benefit most from their location. The authors set other divisions and classifications already in effect against the proposal for delimitation which is offered here, along with relevant recommendations for the development of regional policy.
While mountain regions face territorial disparities when set against lowlands, the EU’s post-2020 Cohesion Policy seeks to reduce such between regions by focusing on those that are most vulnerable. Along with regions that are otherwise remote, mountainous areas are mostly seen as in decline, and deprived of opportunities to achieve sustainable development. They face serious demographic issues connected closely with migration outflows, while they are characterised by low-quality educational services and a paucity of employment opportunities compared with circumstances in the lowlands. It against this background that the work detailed here was carried out to investigate inequalities between mountain and lowland areas of Greece. Specifically, the focus is on disparities in levels of education and unemployment, as well as population shifts. While the temporal frame comprises the period 2001-2011, the locality is the mountainous Municipal Unit of Ioannina, in the Region of Epirus. The findings reveal high level of inequality in all sectors of vital importance to one of the EU’s poorest regions, while the further aim of the paper id to reveal the main drivers underpinning disparities in the context of post-2020 policy.
While Poland has been perceived as a country that mainly receives migrants from the neighbouring Eastern Europe, it is also increasingly now representing an attractive place to work or study for migrants from other countries completely foreign from Poland in terms of their language and culture. However, as data on such international migrations are affected by numerous errors but can be supplemented by long-term statistics on border traffic, the work detailed here has sought: (a) to evaluate longterm trends to the structure of foreign traffic incoming across the country’s eastern border; (b) to identify causes of change in the composition of incoming cross-border traffic in terms of nationality, in relation to the geopolitical situation (pertaining both in Europe and the countries of origin); (c) to define the roles particular sections of Poland’s eastern border play in the migration-pressure context. The study was based on statistical data for the period 1994-2019 obtained from the Polish Border Guard. In an effort to encapsulate current migration tendencies, particular attention was paid to the citizens of Syria, Somalia, Nigeria, Iraq, Bangladesh and India. However, analysis also extended to the inflow of citizens of relatively closer migration origin, i.e. from countries like Moldova, Georgia, Armenia and Kazakhstan. In the period under investigation, Poland’s eastern border was found to have been subject to the impact of economic factors (influencing cross-border traffic), while also – over time – becoming ever-more susceptible to geopolitical events (e.g. the crisis in Ukraine and the migration crisis in Europe as a whole). Significant growth was to observed, not only (obviously) in numbers incoming from neighbouring countries, but also where other, non-European countries were concerned. Looked at long-term (over the last 30 years), Poland’s eastern border can be seen to have changed in nature several times, transcending local status in favour of global, but also moving in the opposite direction.
While significant increases in air temperature are being observed in the context of climate change, precipitation characteristics, indicators and indices seem to be changing in a more regionally-variable manner. High-mountain areas prove particularly subject to fluctuations and changes of climate, given that mountains serve as barriers to masses of air flowing over them, with the result that atmospheric precipitation totals are high in the context of the so-called orographic rainfall. Overall, the Chornohora represents the highest range anywhere in Ukraine’s Carpathian Mts, as there are six peaks over 2000 m a.s.l. capable of serving as a barrier running NW-SE. Nevertheless, the main ridge of the High Tatras (of the Slovakia-Poland borderland) is even higher and runs W-E. Each massif is some 30 km in length, while the two ranges are separated by a distance of almost 350 km. Main drainage divides run along the highest ridges here, with the Tatras separating the drainage basins of the Vistula and Danube, while the Chornohora represent a divide between the Prut and Tysa basins. The aim here has been to present characteristics of atmospheric precipitation in Tatra and Chornohora Mts. as these are seen to relate to atmospheric circulation. To this end, the dependent relationship between intensity of precipitation and atmospheric circulation was examined exhaustively, with changes in the latter considered from the point of view of intensity of precipitation in the massifs under study, and with trends for precipitation over the study period also looked for.The Niedźwiedź (2017) classification of types of atmospheric circulation was applied, with annual values calculated for circulation indicators P (a W-E inflow), S (a S-N inflow) and C (a cyclonic/anticyclonic inflow). Overall, the study drew on 1961‑2015 daily precipitation data from the north-eastern slope of Chornohora Mts. (as represented by Ukraine’s Pozhyzhevska weather station, PO, 1451 m a.s.l.), as well as the north slope of the Tatra Mts. (as represented by Poland’s Hala Gasienicowa weather station, HG, 1520 m a.s.l.).An air inflow from western directions was found to have prevailed over 28% of the days in the average year (Fig. 1). The most frequent types involved here were: Ka (12%), Bc (10%), Wc (10%) and Wa (8%). During the summer months (JJA), it is the Ka and Bc types that are even more frequent (present on approx. 15% of summer days). Types Wc and Wa in turn occur more frequently in winter (DJF) – respectively 13% and 12% of the time. In autumn, these types reach a level of occurrence around 10%.At 1712 mm, the average annual rainfall total for Tatra Mts is higher than that for the Chornohora (on 1446 mm). While the seasonal distribution of rainfall in spring and autumn looks almost the same in the two massifs, winter brings more precipitation in the Chornohora, while summer is a wetter season in the Tatras (Fig. 2). Largest amounts of precipitation nevertheless fall in the warm half-year, in the circumstances of N+NEa advection, cyclonic situations and under arctic, polar-marine or polar-marine transformed air masses (Figs. 3 and 4).The largest changes over time are to be observed for the zonal inflow index (P) and the cyclonic index (C). The P index points to increased numbers of days with a western circulation, while the C index confirms the domination of anticyclonic circulation (Fig. 5). The trend for annual rainfall totals is an upward one overall in both regions, but in neither does this achieve statistical significance (Fig. 6). Equally, there is a downward trend line for numbers of days featuring precipitation (RRdays) in the cases of both the Chornohora and Tatra ranges (equal to -7.3 days/10 years and -7.59 days/10 years respectively) (Fig. 7). On the other hand, the trend for numbers of days with higher rainfall, e.g. with RRdays>10mm is upward for the Chornohora (at +1.23 days/10 years), but downward for the Tatra Mts (at -0.6 days/10 years) (Fig. 8).
While the Colombian city of Medellín used to be infamous as the world’s most violent (1991), a more recent image is as the most innovative (2013). The case of Medellín is thus taken to epitomise possibilities for positive change, with the city being looked up to by others. The particular renown here is as one of the cradles of the so-called ‘social urbanism’, an approach to city-making that aims to resolve social issues by means of interventions in urban space, via infrastructure, public places, etc. However, while the successes of this approach have been acknowledged and vaunted internationally, certain less-successful effects have often tended to be silenced. This paper therefore focuses on the more-shadowy side to social urbanism, and on ways of proceeding that remain in place despite the transformations announced. The aim is thus to contribute to a fact-based discussion on the actual effectiveness of social urbanism in addressing social challenges.
Windthrows are ubiquitous in forest environments, and they lead to many ecologic, pedologic, and geomorphic consequences. The distribution of wind damage is not uniform, and may be controlled by many factors. This study examines the role of topography, canopy gaps, and forest edges in the distribution of windthrow damage within the Polish part of the Western Tatra Mountains (121.7 km2 ). A set of aerial photographs was used to map windthrows created in 4 different periods: before 2009, 2009-2012, 2012-2014, and 2014-2015. GIS mapping, image classification, and t-test were applied to analyze the data. Among all topographic characteristics, the highest diversification of windthrow distribution was observed in the case of aspect, which was probably connected with different wind directions in analyzed periods. Slope and elevation also controlled damage distribution, mainly by a decreased damage within the steepest slopes and the highest elevations. Canopy gaps did not influence damage distribution significantly. Forest edges, particularly those created by recent windthrow, were the most important factor influencing the distribution of wind damage.

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