by webadmin | Feb 1, 2015 | Bez kategorii
Natural Environment Monitoring 2007, No 8, 57-63
THE VARIABILITY OF CHEMICAL COMPOSITION IN WATER CIRCULATION IN LAKE GARDNO CATCHMENT ON THE WOLIN ISLAND IN 1997-2005
Robert Kolander
Summary
The variability of chemical composition in water circulation in Lake Gardno catchment on the Wolin Island in 1997-2005 years shows that the result of a physico-chemical transformation of precipitation in the canopy of beech trees, the rainfall is enriched in most of the ions. The loads of hydrogen ions reaching the forest floor show variability correlated with the vegetation season. With the start of the beech growing season in April, the adsorption of hydrogen ions can be observed. The buffering ability of assimilation organs persists throughout the entire season, reducing the number of protons reaching the forest floor even by 99%. The effect is a substantial enrichment of water solutions getting to this part of the forest in potassium, calcium and magnesium loads. The volume of proton loads delivered to the forest floor in the non-growing season is more than 16 times greater. The Mineralization of water circulation in Lake Gardno catchment is lowest in the precipitation (14,5 g •dm-3). In biosphere reaches 37,2 mg •dm-3 (throughfall and stemflow). In lithosphere reaches over 300 mg •dm-3 (inflow, surface waters, and groundwaters on the two levels).
by webadmin | Feb 1, 2015 | Bez kategorii
Natural Environment Monitoring 2007, No 8, 51-56
ACCUMULATION OF HEAVY METALS AND MORPHOLOGICAL CHANGES IN THALLI OF HYPOGYMNIA PHYSODES (L.) NYL. LICHEN
Małgorzata Anna Jóźwiak
Summary
Specific response of organisms to changes in environment is named biomonitoring, and organisms sensitive to these changes are called bioindicators. Thanks to regular tracking of biotests, chemical and macroscopic analyses, data on qualitative changes of ecological systems are obtained. Characteristic constitution and physiology of lichens qualify these organisms to be used in biomonitoring research. The most important lichen features, which are of primary importance, are as follows: ability to absorb pollution on the whole external structure of thallus due to lack of surface protective layer, moisture uptake from the atmosphere together with pollutants deposited on dust particles, year-round continuous vegetation and environmental eurytopicity. Research on environmental pollution by heavy metals in Kielce was carried out in 2006. Grafting of Hypogymnia physodes (L) Nyl. lichen thallia was done in quarterly cycles in selected stands in the city. Grafted lichen thallia were taken from standard clean regions of Northeast Poland (Borecka Forest), and then placed on tree trunks close to research stands. Chemical analysis of heavy metals (Cu, Pb, Fe, Cd, Zn) was performed in “0” sample before exposure, and then another one after 3-month impact of biotopic factors. During macroscopic research, thallus structure was examined using stereoscopic microscope and type of occurring changes (dye penetration, thallus shape, damages of structure on thallus surface) were determined. Results and their evaluation showed that average concentration of tested metals in 2006 in Kielce amounted to 58,87 mg•kg-1 d.w., and reached the highest average values in IV quarter (61,30 mg•kg-1d.w). From all tested metals the highest concentration was noticed for iron (annual average of 153,81 mg•kg-1 d.w.) and for lead (annual average of 52,82 mg•kg-1 d.w.), while the lowest concentration was detected for cadmium (Cd) – fig. 8. Morphological changes of Hypogymnia physodes thallus structure are displayed as colour changes (whitening, browning, blacking) – photo. 3, and severe damage of morphological structure that is characteristic for systematic features of this species (radial greengray rosettes) into spalling, necrotic, brittle and curled thallia come off substratum (photo. 1, 4).
by webadmin | Feb 1, 2015 | Bez kategorii
Natural Environment Monitoring 2007, No 8, 91-98
TWENTY-FOUR HOUR CYCLE OF THE TEMPERATURE OF WATER IN THE ROPA RIVER BELOW WATER RESERVOIR IN KLIMKÓWKA
Łukasz Wiejaczka
Summary
This article is presenting a twenty-four hour cycle of the temperature of water of the Ropa river during summer, below water reservoir in Klimkówka, and in thermal conditions of water changed by him as well as a changeability of this cycle during diversified weather phenomena. Also showing, that the starting water reservoir in Klimkówka has influenced on the course of values of the temperature of water of the Ropa river in the twenty-four hours cycle, below its location.
by webadmin | Feb 1, 2015 | Bez kategorii
Natural Environment Monitoring 2007, No 8, 73-90
TEMPORAL VARIABILITY OF THE SPATIAL STRUCTURE OF MAXIMUM DAILY PRECIPITATION TOTALS
Alfred Stach
Summary
Extreme precipitation events are of great significance for the operation of natural systems and can do much economic damage. Most of the climate change forecasts predict as highly probable an increase in their frequency and intensity. So far, however, little thought has been given to a possible change in the spatial structure of extreme precipitation. In the present study, a 25-year measurement series of maximum monthly and annual daily precipitation totals (MDPTs) from the area of Poland was employed to test a hypothesis about the existence of seasonal and multi-year variability of their spatial structure. For each of 325 sets of data an isotropic empirical semivariogram of normalised data with a range of 212.5 km (85 intervals 2.5 km in width) was calculated. The analysis of the seasonal and multi-year variability of the spatial structure was performed on parameters of semivariance models. The models were complex: they contained from two to five components. The spatial structure of MDPTs shows great variability, both yearly and multi-annual, which makes it hard to establish seasonal cyclicity and possible multi-year trends. On the basis of the results of univariate analysis of variance, it was found that statistically significant seasonal variability was displayed by the nugget variance (C0), the range (A1; about 15 km on average) and the variance of the first structure (C1). Mean values of other parameters also change in a regular way, but the differences are not significant statistically. The three above-mentioned parameters (C0, A1 and C1) also show distinct multi-year trends. They take the form of cyclic variability with a period of some 19 years (C1 and A1) and an indeterminate period longer than 25 years (C0). The nugget variance is the final effect of measurement errors and short-distance variability (including spatial discontinuity and the nonsynchronic nature of MDPTs). The first component can be identified primarily with precipitation from single convective cells. Thus, the performed analysis indicates that temporal changes largely affect the spatial structure of local precipitation.
by webadmin | Feb 1, 2015 | Bez kategorii
Natural Environment Monitoring 2007, No 8, 19-27
THE POSSIBILITIES OF USING ANALYSIS OF METAL FORMS OCCURRING IN SURFACE WATERS IN ENVIRONMENTAL MONITORING
Anna Rabajczyk
Summary
Water cycle and a fact that water is a very good solvent cause that water does not occur in nature as a chemically pure compound made of oxygen and hydrogen but it is a very diluted solution of salts, acids, bases and gases. Colloidal compounds and suspensions are present in water together with substances diluted in water. Water contains almost all natural substances occurring in Earth’s crust or admixtures and anthropogenic substances or pollutants. Amount and types of substances in natural waters may vary and they depend on their universally occurring in given environment, solubility and physicochemical processes shaping the transformations. Chemical composition of rivers, lakes and ground water changes significantly under the influence of natural factors such as chemistry of elements, weathering conditions or biological processes, and as well as a result of human activity. When performing environmental monitoring of tested ecosystem, in order to gather complete information, all ecosystem components have to be analysed. Field research including location and evaluation of research area with regard to geological aspect as well as land development should be taken into account as well as field and laboratory analysis including analyte forms in different environmental samples. The introduction of the metals adsorbed on suspension matter or other solid particles analysis into procedure of metal analysis in water is necessity and gives the possibility of receives information about concentration of metal forms.
by webadmin | Feb 1, 2015 | Bez kategorii
Natural Environment Monitoring 2007, No 8, 65-72
TEMPORARY VARIABILITY OF THE ORGANIC MATTER FALL IN FIR-BEECH STANDS IN YEARS 1994-2006 ON THEMAIN MASSIF OF ŁYSOGÓRY
Alojzy Kowalkowski, Marek Jóźwiak
Summary
In the years 1994-2006, within a framework of integrated monitoring, research on dynamics of organic deposition in two biogroups of mountain acid beech wood (Dentario glandulosae-Fagetum, Klika, 1927, Matuszkiewicz, 1964) was conducted. The beech wood comprises 3-layer fir-hornbeam-beech stand while beech is between 60-140 years old, and fir is up to 150 years old (“A” biogroup), and 2-layer beech-stand is aged between 60-140 years with addition of sycamore (“B” biogroup). The research was carried out on the Northern slope of the main quartzite £ysogóry Massif on the OEwiêty Krzy¿ Mountain at heights from 509 to 520 m ASL. 12 components were selected from organic deposition assimilation organs of fir, beech, hornbeam, sycamore and mountain ash; fruits of beech, hornbeam and maple; small tree branches, bud hulls, bark and other components. In the time of the dynamics of organic deposition, the key role was played by quantitative ratios of assimilation organs of fir and deciduous trees occasionally with those aged 1 or 2 years (seminal years). In the years 2002-2006, a remarkable increase of organic deposition was observed in both biogroups in comparison to the previous period. In “A” biogroup which was getting old, unbalanced and high deposition of coniferous needles of fir which was under die-back and acidifying soil environment was observed, the fructification of deciduous trees decreased significantly. In “B” biogroup of beech-stand maturing, where foliage deposition dominated, total organic deposition is higher, fructification is several (2.7x) times higher, while deposition of tree branches and bark is lower in “A” biogroup.
