Dr inż. Andrzej Mazur

PERFORMANCE EVALUATION OF THE PRE-DAM RESERVOIR ON THE POR RIVER

In order to improve the quality of retentioned waters in dam reservoirs, the pre-dam reservoirs are built, that are localized above the main one. They aim at keeping contaminants transported by a river. The example of such solution can be the largest reservoir in Lublin region - "Nielisz". Reservoir consists of two parts divided with dam. The main reservoir (water surface area 709 ha at NPP, mean depth 2.8 m, and total capacity 18.30 mln m3) is localized in river Wieprz valley. Its catchment area is 1236.2 km2. The pre-dam reservoir of 179 ha area at NPP, mean depth of 0.7 m, and total capacity of 1.18 mln m3, is situated in river Por valley. The damming section is situated on 1.685 km of its course, while the catchment area amounts to 590.3 km2.Present research aims at presenting the analysis upon the influence of pre-dam reservoir on quality of waters supplying the main reservoir. Water samples were collected with quarter increments at the inflow and outflow from the reservoir. Analysis of results from here conducted survey univocally indicates that analyzed pre-dam reservoir contributes to significant improvement of water flowing into the main one. The largest reduction of pollutant concentrations in ...

Dr inż. Andrzej Mazur

The impact of agriculture on the changes of the landscape based on an example of the agricultural loess catchment in the Lublin Upland

This paper presents the results of studies showing the effect of erosion processes on the evolution of the loess catchment landscape in the conditions of intensive farming in the Lublin Upland spreading over such rural lands as Wielkopole and Zamostek. The research is based on: the inventory of erosion damage on the surface wash; the measurement of the water and suspension runoff in the discharge section line closing the catchment; the execution of studies concerning the upgrading the structure and leveling-soil profile on the slope of transverse-slope crop. The study shows a high risk of water and tillage erosion of the area in question. Being subject to intense anthropogenesis, erosion processes led to the occurrence of a specific mosaic agricultural landscape with: a dense network of dirt roads; great number of long and narrow agricultural parcels situated on the separated by high edges terraces; poor woodiness of the catchment; and the mosaic of soil types and subtypes. The natural landscape has been transformed into a cultural one and the return to its original appearance is impossible due to the still existing anthropopressure. ...

Mgr inż. Justyna Gabryszuk

Dr inż. Andrzej Mazur

Dr inż. Radomir Obroślak

Dr inż. Roman Rybicki

ANALYSIS OF CHANGES IN LAND USE IN LUBELSKIE VOIVODESHIP IN THE PERIOD 2004-2013

The aim of the study is to analyse and compare the changes in land use in rural areas in the Lubelskie Voivodship at the time of implementation of the Rural Development Plan (RDP) during the period 2004-2006 and 2007-2013. The assessment of changes in land use was made based on aggregate voivodship lists of the land and building register covering the years 2004-2013. In detailed analyses the changes in the register area of particular lands in 20 districts. For the purpose of research presentation QGIS software was used, which allowed to present the changes in land use in the form of a cartogram.The research shows a decrease in the acreage of agricultural land and waste land at the time of implementation of the two programmes, at the expense of, among others, forests, wooded and bushy lands, urban and built-up lands, ecological lands and various land. The effect of financing activities related to the reduction of the human impact on the environment during the period 2007 - 2013 in Lubelskie Voivodship can be observed in the changes of ecological land acreage. It was observed the overall area increase of 22,21%. Ecological lands constitute a very small percentage of the lands in ...