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In the paper there have been presented the results of a field studies performed in 2001-2003 (carp breeding period), in order to establish the dynamism of the light conditions changes in a fish pond. The influence of shade caused by vegetation growing on the shore of the light conditions in the pond has been also analyzed. The results show a great changeability of the light conditions in a breeding...
The paper presents the relationships between daily sums of global solar radiation and real sunshine duration and separately, mean for a day amount of total cloudiness (computed from three standard observation terms) within 11 May - 31 July period in Felin. This period is approximated to the insolation summer one and is characterised by a long day (at least 15.5) and slight differentiation in time...
The papers presents previous water managements strategies of the Selmęt Wielki Lake and the influence of change of the lake damming height on surroundings. Possibilities of increase retention capacity of the lake (till 1 mln m2), for using water for protected area in the lower part of the Jegrznia River, are considered. Prolongation of time with higher damming level of the lake would increase amount...
The paper presents natural and anthropogenic causes changes of the Poland’s climate on the base of the meteorological data. It is difficult to distinguish anthropogenic climatic changes from the natural ones. The change of climate conditions in the 20th century resulted from the change of the character of atmospheric circulation (cyclonic south-western circulation) especially during winter and autumn...
Recently observed the changes in Poznań suburban area (PSA), that have been mentioned above are mainly connected with a chaotic, spatially incoherent and harmful process of occupation not only of the PSA but also other open spaces - rural spaces (like fields and meadows) and forest ones. It has been postulated to indicate the areas permanently exempted from urbanization by the use of local plans....
Outdoor noise propagation, is influenced by the energy of the sound source as well as properties of the medium in which acoustic waves travel. Elements of component phenomena, popularly called meteorological phenomena, influence noise energy propagation in open area, shaping the air mass dynamic. Two case studies are offered: the city of Łódź (Poland) and Montelimar (France). The comparison shows...
The paper presents results of investigation carried out on compaction ability of coarse grained burnt colliery spoils from “Wesoła” mine. The work was aimed at determining the infl uence of granulation, compaction energy and diameter of Proctor’s apparatus mould on compactibility parameters of colliery spoils. Compactibility parameters were determined with the use of standard and middle-size Proctor’s...
In our paper, we give the simulation results concerning the multiple-comparison procedures, especially their error measures, such as FWER and FDR. We compare the powers of four popular multiple-comparison procedures, applied to three standard statistical models. All of our simulations were carried out by using the R-project package.
The aim of this work was the characteristic of spatial and temporary distribution of nitrogen oxides concentration (NO2, NO) from 10 monitoring air pollution stations in Warsaw agglomeration. The measurements of 1-hour NOx (NO2, NO) concentration data were used. The results of analysis mean annual value of NO2 concentration in regarding stations situated in rural areas and Warsaw is included in 8,4...
Mathematical model groundwater level lawering in aquifer located between two lawpermeable layers due to vertical drainage system is presented. In order to determine the distributions of water heads calculations were performed for three modes of subsoil configuration.
The relationships between the yield and meteorological elements have been stated by the use of multiple regression model selection. Winter wheat yield was taken as dependent variable and three groups of meteorological elements were taken as independent variables. Simple meteorological elements belong to the first group of independent variables; their nonlinear combinations (square, square root) belong...
Results of the rainfall kinetic energy flux measurements conducted during 2004 in Wrocław are presented at the paper. Kinetic energy measurements were made with the use of electronic impactometer and associated with rainfall intensity registrations. Measured rainfalls kinetic energy flux values were found to have similar shapes of temporal changes, as their intensity values. Estimates of rainfalls...
These procesess are conditioned by natural parameter of environment and its using. There were evaluate the surface runoff and erosion values on different kinds farming land on base of long-term measurements. Annual size surface flow and soil erosion were correlated mutually and with precipitation. The subsurface runoff is important element of water circulation. Authors showed the amount and course...
In the paper the analysis of the time variability of meteorological elements affecting tourist values of the climate in Central Pomerania in 1971-2000 was carried out. On the basis of the tourism climatic index (TCI) the usefulness of climatic conditions of the towns of Chojnice and Szczecinek for tourism during a year was assessed. It was observed that in 1971-2000 the values of some meteorological...
In this paper an attempt was made to apply kriging method for the creation of isoline maps of particulate matter PM10 concentration for Warsaw agglomeration for the following days: 20.02.2005, 21.02.2006, 22.02.2006, either distinguished by the presence of different meteorological conditions. Obtained empirical variograms of PM10 concentration values were of irregular course on account of a low number...
This article deals with a short characteristics of technical and social infrastructure in a selected commune in Mazowieckie Voivodship in comparison with binding requirements of the EU. The main directions of the European Union concerning technical infrastructure are as follows: improvement of transport quality, introduction of law provisions, tightening controls and stricter penalties in the road...
The aim of the studies was to determine relationships between the concentration of nitrogen dioxide and sulphur dioxide in the countryside area and the selected meteorological elements. In the studies the data concerning the immission of gas pollution and meteorological data were taken into account and they were gathered, respectively, at the station monitoring the air quality and the agrometeorological...
The main role in forming the so-called small landscape retention in the Wielkopolska region is ascribed to the extent of afforestation of a given area - the size of the afforested surface in a catchment species composition and age structures of the stands. Non-climatical, physiographical parameters influence water storage capacity in a modifying manner only, nevertheless essential. We can say that...
The aim of the paper is evaluation of conformability between actual soil moisture appointed in laboratory and indices of soil moisture used in hydrology: Lambor’s anterior precipitation index (IL) and American index (Ia). The notation for soil moisture is taken from experiments conducted in Department of Agronomy experimental station in Chylice between April and November 2006. Statistical analysis...
WZ index is an aggregated indicator of air pollution, that encompasses the joint impact of various meteorological elements on pollution (sulphur dioxide) concentration level. Following meteorological elements were taken into account: mean daily air temperature, wind speed at the height of 10 m above the ground level at the time 12 UTC, precipitation, atmospheric air pressure and existence of lower...
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