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The investigations, carried out in the Vistula river valley near Góra Kalwaria (Vistula middle course) were focused on the estimation of connections between alluvial basement position and contemporary channel stability. The culmination of basement was discovered in the upper part of the studied reach. It is generally composed of fluvioglacial deposits, covered by coarse-grained residuum residual lag...
In recent years, the hydraulic conductivity of fme-grained soils has became the most important geotechnical parameter in an environmental engineering, due to its signiftcance in the prediction of contaminant migration. This paper presents the CPTU, DMT and BAT techniques, recently developed for hydraulic conductivity investigations. Finally, the in situ test results obtained at a site consisted pliocene...
The paper presents an extremely important problem of low land river sand dunes and the influence on the riverbed morphology such hydraulics parameters as velocity of running water, shear velocity, shear stresses and resistant coefficient. The sand dunes are typical features for low land river sand beds. The studies on them undertaken on the Rhine River in Germany (the river reach situated in Niderwalluf)...
The analysis of statistical methods used in the determination of consolidation characteristics as a function of other parameters is a very important task in the determination of settlement. Selected methods for estimation of coefficients of a regression function and an algorithm to calculate these coefficients are presented in this paper. Statistical analysis of obtained model for different kind of...
Measurement carbon monoxide (CO) conceniration was done in Ursynów-WAU since February 2001. The primary sources of CO in Ursynów are motor vehicles and local emission. The annual and 24h mean concentrations CO in 2001, 2002 accounted for 40-56% of air quality standards. The 8-hour carbon monoxide concentration exceeds lower threshold evaluation in November 2002.
The hydrologic and environmental studies were carried out in the middle Wkra river natural and reclaimed sections. The reclamation caused the unbending of the riverbed route but did not caused the disappearance of typical, repeatable river microhabitats. The reclaimed sections are only a little bit less environmentally valuable than natural ones. The vertebrate and invertebrate fauna are very similar...
The research was realized in the period from October 1997 to December 2002. The following characteristics were worked out: mean values of sulphur dioxide concentration response to wind velocity and wind direction and wind rose of air pollution for summer half - year period and winter half-year period. The highest rnean annual sulphur dioxide concentration were observed in atmospheric calm and in the...
In the paper the authors shows the results of lysimetric investigation. The aims of the investigations were to get to know the essential doses and reactions of plants chosen for irrigation by leachate from solid waste disposal. The experiments were conducted on 68 lysimeters and 4 kinds of plants (Robinia pseudoacacia, Acer negundo, Sambucus nigra i Primus padus). The research were carried out on...
The paper presents the results of laboratory tests carried out in the modified soil-geotextile permeameter (Fig. 1) recommended in AST Mstandard D 5101-90. Laboratory tests were performed on nonwoven geotextile K-500 (Tab. 1) and clayey sand (Tab. 2). In Figures 2 and 3 the change in permeability coefficient in soil-geotextile system and soil under different hydraulic gradients are shown. The relationship...
The posibilities of the development of agricultural production and non-agricultural kinds of farming on rural areas depend mainly on the state of infrastructure equipment. The condition of the technical infrastructure in these areas is very important, causes the preservation of environment (eg. Sewerage system and waste water treatment plants). This paper shown changes in the equipment of infrastructure...
The research was realized in the period from January 1998 to March 2003. In case of frontal precipitation water, the highest pH were with winds from N, E for warm half-year, for year and with winds S, E for cold half-year. Precipitation water with the lowest pH were for winds directions W, NW in year, SW, W for warm half-year and N, NE in for cold half-year. In case of inside air mass precipitation...
In the paper the authors analised the possibility of waste water utylisation front community Radiowo landfill for irrigation of reclamated areas. Chemical analisys indicates the level of chlorate in waste water up to 31 g/dm3. In order to be used in irrigation process waste water must be pre-treated to get the conductivity lower than 4 mS/cm. Technical and environmental analisys of landfill indicates...
The article presents evaluation of topoclimate and bioclimate as part of the ecophysiografic study. The highest biotopoclimatic differentiation in Raszyn commune has been found between an agricultural area and urban area. In case of appropriation this rural area for housing sparsely building making good condition of ventilation are recommended. Levels of environmental noise requisite to protect public...
The way of building of a one-family country house has evolved within years. Development and transformation processes consist in structural changes leading to tnore complex and improved states. Farm er house not only has a residential function but it also is a center of farm production tools for a farmer and his family disposal. Functional program of a country house is influenced by several factors,...
The quality of irrigation water has an impact on operation of irrigation system and influence on system efficiency. The main objective of the experiments was to examined the performance of drip system under conditions of low quality recycled water irrigation from tobacco manufacture. The results of uniformity coefficients were higher then 90% and performance of the drip system can be evaluated as...
On the basis of 8 years (1993-2000) data from Research Station Wrocikowo at north part of Poland the investigations on the impact of meteorological factors on yields of medium-early varieties (Glad, Kolia, Maryna) of potato were conducted. The role of independent variables played: mean temperatures, sum of precipitation, solar energy and sum of sunshine hours as well as insufficiency of air humidity...
The studies, canded out on reclaimed and close-to-nature sections of the middle Wkra, allowed for identification and presentation of basic, repeatable types of microhabitats in the riverbed. The specific invertebrate fauna is characteristic for each of such microhabitat. Some species live only in one or few microhabitats. The river-sections with muddy bottom (especially marginal parts of the riverbed...
The aim of the presented paper was to determine content of Cd and Se in soils under different impact of anthropopressure. The cadmium and selenium contents were determined in 18 soil samples from southern and northeastern Poland. For cadmium determination in soil samples the GFAAS techniąue was used and the HGAAS technique for selenium determination. The Cd contents in soil samples from region under...
The paper presents the results obtained from DMT, CPTU and SCPTU and methods of evaluation shear modulus G0 from different kinds of in situ tests. The investigation were performed of Stegny site where overconsolidated pliocene clays occures. An analysis of cone penetration and dilatometer tests results indicates that existing formulae for G0 evaluation play regional role and have to be applied for...
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