Polish village of the interwar period was not very rewarding ground for modernist architecture. Construction was based on traditional technology, with occasional use of new materials such as reinforced concrete and steel. Socio-economic changes taking place slowly. Industry did not play in Poland at that time such a role as in Western Europe. Modernism in Poland was a phenomenon in an artificial advantage, promoted by a group of architects fascinated with western art. The end result of the mansion in Ciechanki project is a compromise between the needs of snobbish current and future residents of the social customs of the manor.

The objective of the study presented here was an analysis of variations in the level of the groundwater table and of the levels of surface water at the melioration object Piwonia-Uhnin. The ditches are 1–1.2 m in depth and overgrown with willow. The water in the ditches stagnates at a very low level, and in some of them it dries out completely. The present differentiation of the level of groundwater table on the studied area was identified on the basis of static hydrometric measurements performed in 9 piezometric wells by means of a hydrogeological whistle and on 7 water-level gauges using a measuring rod. In ditches 2, 3 and 4 the water levels were 15–35 cm, while ditches 1, 5 and 6 remained without water for a long period of time. Unfavourable meteorological factors and the present status of structures regulating water runoff cause an excessive lowering of the groundwater table with the resultant occurrence of water deficit in the soil. Excessive drying of soil is most frequently observed in the case of mineral soils (points 7–9) and, periodically, on strongly transformed shallow peats (points 4–6) situated, in addition, within the zone of effect of the drainage ditch. Depth of drainage exceeds the value of the maximum drainage norm h3. During the early spring period it even happens that the depth of the groundwater table is lower than the value of the drainage norm h1.

The results of survey and hydrometric measurements and calculations made aimed for verifying of the rating curve of the cross-section in the km 8+400 of river Dłubnia, elaborated by Institute of Meteorology and Water Management (IMWM), were introduced in the work. This water-gauge, located above 300 m below the dam of water reservoirs in Zesławice, enables the recording of the water states, being the sum of outflow from reservoirs and the tributary of the waters of the Baranówka stream. The intensity of the water flow was calculated on the basis of the hydrometric data using the Harlacher’s method and using the Chézy’s formula. The rating curve, which was worked out on the results of measurements and calculations, was compare with the rating curve worked out in 1993 by IMWM Branch Cracow. It was stated that the maximal conveyance of river channel in water-gauge section, established according to the IMWM study, is 95.6 m³ · s^–1. However the maximal conveyance qualifying in results of calculation executed according to measurements carrying out in 2011 is equal 88.1 m³ · s^–1. Corrected, the lower conveyance of the channel of the Dłubnia river below water reservoirs, should be considered in the operation instruction of reservoirs in note relating to the outflows during the freshet.

The flood situation which caused the threats of submergence of the terrains which are below the reservoir did not happen in during above forty five years of the operations of reservoirs. It was except intensive flood in the day 18 July 2010, in result which happened the submergence of settlement in Zesławice, located between Mistrzejowice and Grębałów. According to victims the cause of submergence was the uncontrolled waters outflow from the reservoirs. The preliminary analysis of the freshet inflow to reservoirs with the analysis of their outflow was introduced in this work. According to the result this analysis the impact of the Zesławice water reservoirs on the reduction of the flood wave was defined. The analysis of the flood course was worked out on the basis of the registered states of water on the watergauge of Zesławice water reservoirs, installed from the upper side of the weirs of the dam (W1) and on the water-gauge IMGW, located 300 m below the dam of water reservoirs (W2), and on measurement coss-section (W3), located 140 m below the dam of reservoirs . It was stated, that already during the first day of freshet, possibility of retention of the flood flow in reservoirs becomes limited, because of quick their fulfilment and such situation forces the outflowing the whole of the inflow to reservoirs. It was also affirmed that flood situation of 18 July 2010 had not been caused accidental, or the also uncontrolled outflow from water reservoirs in Zesławice. On the basis of the analysis of average flows twenty – four hours one can affirm that the reservoir reduced the flood wave about 4% only.

The investigations regarded a holomictic Lake Wulpińskie located near Olsztyn. Samples were taken during the autumn circulation 2007 and spring circulation 2008 over the deepest site of each of the bay and compared to previous data. The lake consists of two parts: eumictic tomaszkowska (459 ha, 22 m), and bradymictic barwińska (246 ha, 54.6 m), separated by an inlet with a length of about 60 m and depth 3.8 m. Subcatchments both of bays vary in size and the way of use. Tomaszkowska is more vulnerable to tourist pressure and 62.7% used of agriculture, while the fields and meadows in subcatchment of Barwińska constitute 46.3%. This was reflected in the findings obtained: tomaszkowska has lower visibility of Secchi disc (1.5–1.75 m), higher chlorophyll a concentration (23.25– –26.19 mg ∙ m^–3) and pheophytin (60.11–64.77 mg ∙ m^–3), a larger amount of allochthonous matter and a clear upward trend of this parameter in the deepest part of water. The total nitrogen pool was dominated by organic form.

Abstract: The purpose of this article is project of country garden in Podlasie region. Garden project takes account of features of the Polish countryside with particular emphasis on the characteristics typical for Podlasie. The area is a parcel of 5700 m² located in the Werstok village. To achieve the goal dendrology tests, phytosociologycal analysis of selected elements of the inanimate environment and analysis of environmental and scenic inventory links were performed. The project is designed on a scale of 1 : 250.

The article assesses the impact of rainfall hyetograph shape and reaction time of the catchment on flow from the NRCS-UH model. Calculations were performed on the example of Mlynowka stream – left-tributary of the Ropa river, with area equall 18.03 km². To describe the precipitation method was used Kupczyk and Suligowskiego method, hyetograph recommendations by DVWK and described by function of beta distribution. The sensitivity of the model NRCS-UH for the input parameters were performed using the coefficient of elasticity. The analysis showed that rainfall hyetograph influence on wave of flood. In this study it was found that the largest peak flow obtained when DWVK rainfall hyetograph was use. NRSC-UH model is sensitive to changes in parameter CN – an increase of 1% CN parameter leads to an increased Qmax discharge by 1.1%. Less impact on the output values of the model has a lag time.

The aim of the paper was to evaluate the possibility of use a geomorfoclimatics instantaneous unit hydrograph based on Clark’s model GcIUH-Clark for simulation of runoff. Results got from the model were compared with classical Clark’s instantaneous unit hydrograph IUH Clark. The analysis were made for two rainfall-runoff episodes which were recorded in Godowa gauging station on Stobnica river. All simulations were made with use of HEC-HMS 3.4 application. The analysis showed usefulness of GcIUH Clark’s model for simulation of runoff, but better results were got from classic IUH Clark’s model. Because of the fact that GcIUH-Clark parameters of catchment depend on geomorfoclimatics characteristics, this model could be used for flood simulation in uncontrolled catchments.