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Tytuł:
Międzynarodowa Konferencja Naukowa Small Area Estimation 2014
International Scientific Conference Small Area Estimation 2014
Conférence Scientifique Internationale Small Area Estimation 2014
Международная научная конференция Small Area Estimation 2014
Autorzy:
Szymkowiak, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/542941.pdf
Data publikacji:
2015-03
Wydawca:
Główny Urząd Statystyczny
Źródło:
Wiadomości Statystyczne. The Polish Statistician; 2015, 3; 85-93
0043-518X
Pojawia się w:
Wiadomości Statystyczne. The Polish Statistician
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Issues of Catchment Boundaries Delimitation in a Suburban Area – the Case Study of Poznań Metropolitan Area, Poland
Autorzy:
Mrozik, Karol
Napierała, Michał
Adamska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/123525.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
suburban area
suburbanisation
catchment
Poznań Metropolitan Area
Opis:
The urbanisation and suburbanisation processes are considered to have a detrimental impact on the environment. Increasing the share of the impervious surfaces is one of their main negative effects, particularly in and near the cities, affecting the water relations of basins. It also results in new catchment boundaries formation and, in many cases, changes in the physiographic parameters affecting the accuracy of hydrological and hydraulic calculations of small suburban catchments. This study is an attempt to delimit the catchment boundaries located in the suburban area of Poznań city, Poland, in three variants: according to the Raster Hydrographical Map of Poland and Raster Topographical Map of Poland, digital elevation model, and rainwater sewage system. The analyses were conducted with ArcGIS software, and the results were additionally verified with geodesic measurements on site. This work focuses mainly on the impact of anthropogenic pressure on the catchment shape and the course of its boundaries. The analyses were conducted on the Rów WB stream catchment located in the Skórzewo village, Dopiewo municipality, which stands out within the Poznań Metropolitan Area as the area where the suburbanisation process is the most intensified. This study proved that the agrotechnical and drainage works performed in undeveloped, agricultural areas affected catchment shape and size as much as suburbanisation itself. According to the authors, the suburban catchment boundaries should be regularly updated due to the intensity of the new investments development and additionally verified on site.
Źródło:
Journal of Ecological Engineering; 2020, 21, 3; 202-208
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Leaf area – sapwood area relationship in Scots pine (Pinus sylvestris L.) under mistletoe (Viscum album ssp. austriacum) infection
Autorzy:
Bilgili, E.
Coskuner, K.A.
Ozturk, M.
Powiązania:
https://bibliotekanauki.pl/articles/2078159.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Leaf area
sapwood area
Scots pine
pine mistletoe
Opis:
Leaf area is linearly correlated with sapwood area in trees. The linearity of this relationship can be affected by some biotic and abiotic factors. Mistletoes are hemi parasitic plants that take up water and mineral nutrients from their hosts and affect host physiological responses. There is no conclusive evidence to show the effect of pine mistletoe (Viscum album ssp. austriacum) on leaf area and sapwood area relationship in Scots pine trees (Pinus sylvestris L.) at tree level. The aim of this study is to determine and quantify the effect of pine mistletoe on the structural variation of leaf area and sapwood area relationship at tree level in Scots pine. A total of 18 mistletoe infected and 12 uninfected Scots pine trees were destructively sampled. All needles and mistletoes were completely removed from sampled trees to determine needle and mistletoe characteristics, biomass and leaf area. Sapwood areas at breast height (BH) and at crown base height (CBH) were determined from wood discs taken from BH (1.3m) and CBH. Sapwood area was delineated by benzidine staining method. Pearson correlation, t-test and regression analyses were conducted to determine the relationship between sapwood area and needle-mistletoe leaf area relationships. The results indicated that both the relationships between sapwood area and leaf area in uninfected, and sapwood area and total leaf area (needle plus mistletoe leaf only) in infected trees were linear. However, the slope of regression equation for mistletoe infected trees was considerably lower when compared to the uninfected trees. As for the variation of the sapwood area along the stem below live crown, there was a slight difference between sapwood area at BH and CBH. The study showed also that mistletoe infection led to a significant reduction in needle size (length, width, area and weight) in Scots pine trees. Significant relationships were found between the sapwood area and leaf area in this study. The results of this study may help fill the gap in the knowledge concerning the impacts of pine mistletoe on the dynamics of Scots pine trees.
Źródło:
Dendrobiology; 2020, 84; 1-11
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wrocławski obszar funkcjonalny (WrOF) - charakterystyka pod kątem potencjalnej chłonności terenów
Wrocław functional urban area - the characteristic of area capacity potential
Autorzy:
Warczewska, B.
Mastalska-Cetera, B.
Powiązania:
https://bibliotekanauki.pl/articles/100937.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
chłonność terenu
obszar funkcjonalny
Wrocław
area capacity
functional area
Opis:
Zgodnie z kierunkiem zintegrowanego podejścia terytorialnego (integrated territorial approach) miejskie obszary funkcjonalne ośrodków wojewódzkich wymagają prowadzenia spójniej, całościowej i skoordynowanej polityki rozwoju. Obecnie w Polsce brakuje uregulowań prawno-organizacyjnych rozwiązujących kwestię zarządzania wielopoziomowego. W takiej sytuacji rolę koordynacyjną przypisać można planowaniu przestrzennemu w skali regionalnej i subregionalnej. Jednym z jego elementów jest ocena realnej chłonności terenów przeznaczonych pod zabudowę. W artykule przedstawiono metodę analiz będących podstawą do szacowania chłonności terenów w miejskim obszarze funkcjonalnym Wrocławia. Analizami objęto 25 gmin wiejskich i miejsko – wiejskich oraz jako obszary odniesienia gminy miejskie Oława, Oleśnica i rdzeń obszaru, jakim jest Wrocław. Przyjęto założenie, że w analizach wykorzystane zostaną ogólnodostępne dane statystyczne i na tej podstawie zaproponowano zestaw wskaźników, w podziale na przestrzenne, demograficzne i środowiskowe. Zakres analiz obejmuje lata 1995, 2005 i 2015. Celem pracy jest charakterystyka obszaru funkcjonalnego Wrocławia pod kątem jego potencjalnej chłonności oraz porównanie uzyskanych wyników w czasie i przestrzeni. Zaproponowana metoda bilansowania może być przydatna do wyznaczania racjonalnych kierunków planowania i zagospodarowania przestrzennego na szczeblu lokalnym i subregionalnym.
In accordance with the integrated territorial approach, the urban functional areas of regionalcentres require a coherent, comprehensive and coordinated development policy. Currently, there are neither legal nor organizational regulations in Poland solving the problem of multi-level management. In such situation the coordinating role can be attributed to spatial planning in both regional and sub-regional scale. One of its elements is the real capacity assessmentof the land planned for development.The article presents the method of analyses being the basis for estimating area capacity in the urban functional area of Wroclaw.The conducted analyses covered 25 rural and urban-rural municipalities, and as the reference areas the municipalities of Oława, Oleśnica and the core area i.e.Wrocław. It was adoptedthat the generally available statistical data will be used in the analyses and on this basis a set of indicators, divided into spatial, demographic and environmental criteria, was proposed. The scope of analyses covers the years 1995, 2005 and 2015. The purpose of the study is to characterize the functional area of Wroclaw in terms of its potential capacity and to compare the obtained results in time and space. The suggested balancing method can be useful for determining rational planning and spatial management directions at a local and sub-regional level.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2018, I/1; 211-224
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of surface runoff from the modelled area
Autorzy:
Kaletova, T.
Nemetova, Z.
Powiązania:
https://bibliotekanauki.pl/articles/10009.pdf
Data publikacji:
2017
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
surface run-off
velocity
SMODERP model
NRCS method
rural area
urban area
Opis:
Knowledge of surface runoff characteristics allows creating better conditions for landscape management, whether rural or urban. We focused on a determination of a volume of surface water runoff and it velocity in this paper. A direct measurement was done on an experimental area with three different slopes in a laboratory. Results of direct measurements were compared with results from a model SMODERP and NRCS method used in GIS environment. The velocity of surface runoff was also calculated by a mathematical equation used in literature. The results of surface runoff volume from GIS were equal in all cases, but not the velocity. The results of SMODERP simulation and direct measurements are similar. The calculated velocity was the highest in case of first slope, and the lowest in other cases. Differences of the velocity varied in a range 1.10 - 11.06 %. The volume of surface runoff varied more, mainly the results of NRCS Curve Number method in GIS (up to 41 %). The results show that the higher slope, the higher runoff velocity and volume is.
Źródło:
Environment, Earth and Ecology; 2017, 1, 1
2543-9774
2451-4225
Pojawia się w:
Environment, Earth and Ecology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Comparison of Small Area and Calibration Estimators via Simulation
Autorzy:
Hidiroglou, Michael A.
Estevao, Victor M.
Powiązania:
https://bibliotekanauki.pl/articles/465930.pdf
Data publikacji:
2016
Wydawca:
Główny Urząd Statystyczny
Tematy:
area level
unit level
calibration estimates
small area estimates
simulation
Opis:
Domain estimates are typically obtained using calibration estimators that are direct or modified direct. They are direct if they strictly use data within the domain of interest. They are modified direct if they use both data within and outside the domain of interest. An alternative way of producing these estimates is through small area procedures. In this article, we compare the performance of these two approaches via a simulation. The population is generated using a hierarchical model that includes both area effects and unit level random errors. The population is made up of mutually exclusive domains of different sizes, ranging from a small number of units to a large number of units. We select many independent simple random samples of fixed size from the population and compute various estimates for each sample using the available auxiliary information. The estimates computed for the simulation included the Horvitz-Thompson estimator, the synthetic estimator (indirect estimate), calibration estimators, and unit level based estimators (small area estimate). The performance of these estimators is summarized based on their design- based properties
Źródło:
Statistics in Transition new series; 2016, 17, 1; 133-154
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tourism Studies on Łódź and its Metropolitan Area
Autorzy:
Liszewski, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/627484.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
tourism research on Łódź
tourism research on the area surrounding Łódź
the metropolitan area of Łódź
Opis:
This paper is an overview, and its aim is to identify published research works on tourism in Łódź and around the city as well as the tourism trips of the city’s inhabitants. This target allowed around 100 articles to be gathered which have been divided into eight thematic groups and analysed for merit. Their names are the titles of subchapters: the city’s tourism resources, land use planning, tourism space, the tourism activity of the citizens of Łódź, the tourism product – tourism development strategies, and tourism research of surrounding areas in the metropolitan area of Łódź. In the final part, the author divides the research into stages leading up to an explanation of the current development of research on Łódź and its metropolitan area and then suggests further research directions.
Źródło:
Turyzm; 2015, 25, 2; 11-19
0867-5856
2080-6922
Pojawia się w:
Turyzm
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soft planning for soft spaces. Concept of Poznań metropolitan area development - a case study
Autorzy:
Kaczmarek, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2138673.pdf
Data publikacji:
2018-09-30
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Spatial planning
soft spaces
metropolitan area
governance
territorial contract
Poznań Metropolitan Area
Opis:
The article presents the essence, goals and instruments of soft (informal, non-statutory) spatial planning, developed in the countries of Western Europe and relatively new in Poland. It targets areas with fuzzy borders (soft spaces) and areas between administration tiers. The article presents conceptual issues and non-formal planning tools used in Western Europe. The planning approaches which are generally described as “soft” are characterised by non-formalised and non-binding procedures, and by their focus on achieving a consensus. In the first part of the article presents the conceptual issues and further informal planning instruments used in Western European countries at diferent spatial scales The following section presents deficits of spatial planning of metropolitan areas and against this background - the legitimacy of creating informal plans in Poland, using Metropolia Poznań as an example
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2018, 22, 4; 181-186
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Artificial intelligence in solving collision problem in restricted area
Autorzy:
Mąka, M.
Dramski, M.
Powiązania:
https://bibliotekanauki.pl/articles/359349.pdf
Data publikacji:
2013
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
shortest path
safe route
restricted area
trapezoidal grid
area discretization
simplified ant algorithm
A* algorithm
Opis:
This paper presents one of the approaches to solve the collision problem in restricted area for two moving objects using artificial intelligence (SACO algorithm). Although AI should be used only when the classic methods fail, a simple comparison between them is very interesting. As we know the main task of navigation is to conduct safely an object from the point of departure to destination. This problem does not seem easy, especially if we consider the movement in restricted areas such narrow passages, ports etc.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 36 (108) z. 2; 118-122
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka zagospodarowania działek zagrodowych w gospodarstwach specjalistycznych
Characteristics of the farmstead area management in specialized farms
Autorzy:
Rudnik, K.
Powiązania:
https://bibliotekanauki.pl/articles/239055.pdf
Data publikacji:
2012
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
powierzchnia
działka zagrodowa
wskaźnik intensywności zabudowy
wskaźnik wykorzystania powierzchni
powierzchnia biologicznie czynna
farmstead area
indicator of development intensity
indicator of area use
biologically active area
Opis:
Zgodnie z nową ustawą o planowaniu i zagospodarowaniu przestrzennym, miejscowe plany zagospodarowania ustanawiane i realizowane przez gminę, muszą określać m.in. wskaźniki intensywności zabudowy i udział powierzchni biologicznie czynnej w odniesieniu do powierzchni działki. Celem pracy było określenie parametrów charakteryzujących zagospodarowanie działek zagrodowych w gospodarstwach specjalizujących się w produkcji mleka, o obsadzie 41-140 DJP. Średnie wartości wskaźników charakteryzujących zagospodarowanie działki wyniosły: wskaźnik intensywności zabudowy J = 0,251; wskaźnik wykorzystania powierzchni działki zagrodowej W = 0,475; wskaźnik powierzchni biologicznie czynnej B = 0,525.
In compliance with the new act on spatial planning and development, local development plans decided and implemented by the municipality, have to specify, among others, the indicators of building intensity and participation of biologically active area with respect to the plot area. The study analysed characteristic parameters of farmstead development on the farms specialized in dairy production at the livestock density 41 to 140 LU. Mean values of farmstead development indicators were as follows: indicator of building intensity J = 0.251, indicator of using farmstead area W = 0.475, indicator of biologically active area B = 0.525.
Źródło:
Problemy Inżynierii Rolniczej; 2012, R. 20, nr 1, 1; 25-31
1231-0093
Pojawia się w:
Problemy Inżynierii Rolniczej
Dostawca treści:
Biblioteka Nauki
Artykuł

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