The aim of the research was to compare the accumulative macro- and microelements in the shoots of Carex acutiformis, Carex echinata, Carex paniculata, Carex remota and Carex rostrata. The content of components in the shoots of the plants was analyzed in relation the chemical composition of the soil. The research was done within the area of four mid-forest spring niches situated in the valley of a tributary of the Słupia River located within the area of Leśny Dwór Forest Inspectorate (Northern Poland). The examined species of Carex, in comparison to other plants in spring niches, were characterized by an average capacity to accumulate both macro- and microelements, which results in little interest in these species when planning artificial buffer zones. Out of the analyzed species, the shoots of C. echinata accumulated the largest quantities of Mg, Zn and Mn, the shoots of C. paniculata –Fe, C. remota – K, Ni, Al and Sr, C. acutiformis – N and P, and the shoots of C. rostrata –Ca and Cu. Similarities between the species of Carex, which resulted from their accumulative properties, were discovered. C. echinata and C. rostrata were characterized by high levels of bioconcentration factors (BF) for Sr, Cu and Ca and low BF for K. C. paniculata and C. remota represented high BF levels for Ni and Mg and low BF levels for Sr, Al, Mn, Cu, Ca, Fe and N. On the other hand, C. acutiformis was characterized by high BF levels for P, K and Mn. In spite of an average accumulative capacity, the examined species of Carex were characterized by highly developed surface and underground zones which had effective impact on the retention of pollutants.
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Micro- or nanoflowers are self-organized, planar or 3D microstructures similar to macroscopic flowers. The interest in microflowers has increased in recent years because of many potential applications of microflowers, due to their high specific surface area. The analysis of the morphology of carbon flower-like microstructures produced in low-current plasma, generated by high voltage electrical discharge in a mixture of cyclohexane with argon as the carrier gas has been presented in the paper. It was shown that various carbon microstructures, including microfibers and microflowers of different pattern, can be synthesized on the electrodes by the same plasma method, at various process parameters.
This paper presents the results of study on heavy metals in soil and in herbaceous plants in selected pine forests in Słowiński National Park. The heavy metals, such as Zn, Cu, Mn and Fe were studied. Concentrations of zinc in tested soil are strongly and very strongly related to manganese and copper content (r = 0.57 do r = 0.98, p < 0.05). Moreover, the soil moistening has vital impact on copper content in the plants of the ground cover. It was also found that moss in comparison to other forest plants captures higher volume of zinc and copper. The content of the above mentioned metals in the plants of dry coniferous forests (Bs), fresh coniferous forests (Bśw) and humid coniferous forests (Bw) of the ground cover constitute the following decreasing series: Mn(438.1) > Fe(98.6) > Zn(35.2) > Cu(3.5).
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Vaccinio uliginosi-Betuletum pubescentis and Empetro nigri-Pinetum are characteristic of their diverse frequency and density Vaccinium vitis-idaea L. and Vaccinium myrtillus L. on the forest floor. The examined berry under-shrubs show differences in content of nitrogen and phosphorous compounds and the volume of the over-ground net primary production. An average content of the examined biogenes in leaves of the bilberry (Vaccinium myrtillus) within the area of the Słowiński National Park was 1.311% N, 0.102% P and 40.8% C in Vaccinio uliginosi-Betuletum pubescentis and 1.159% N, 0.095% P and 38.7% C in Empetro nigri-Pinetum. Red bilberry leaves are thought to contain nitrogen, phosphorus and carbon in such propotions: 1.083% N, 0.097% P and 44.70% C in Vaccinio uliginosi-Betuletum pubescentis and 0.868% N, 0.085% P and 44.70% C in Empetro nigri-Pinetum. The variable concentration of nitrogen and phosphorus in sprouts of the examined species of berries shows a positive correlation of those elements. The over-ground net primary production of Vaccinium myrtillus is 534.905 kg/ha in Vaccinio uliginosi-Betuletum pubescentis and 216.594 kg/ha within the coastal crowberry coniferous forest. Vaccinium vitis-idaea in Empetro nigri-Pinetum reaches 155.283 kg/ha of over-ground net primary production and only 113.220 kg/ha in Vaccinio uliginosi-Betuletum pubescentis.
PL
Vaccinio uliginosi-Betuletum pubescentis i Empetro nigri-Pinetum charakteryzują się zróżnicowaną frekwencja i zagęszczeniem Vaccinium vitis-idaea L. i Vaccinium myrtillus L. na dnie lasu. Badane krzewinki borówek wykazują różnice w zawartości związków azotowych i fosforowych oraz wielkości nadziemnej produkcji pierwotnej netto. Średnia zawartość badanych biogenów w liściach borówki czarnej (Vaccinium myrtillus) na terenie Słowińskiego Parku Narodowego wynosiła 1,311% N, 0,102% P i 40,8% C w Vaccinio uliginosi-Betuletum pubescentis oraz 1,159% N, 0,095% P i 38,7% C w Empetro nigri-Pinetum. Zawartość azotu, fosforu i węgla w liściach borówki brusznicy (Vaccinium vitis-idaea) wynosiła: 1,083% N, 0,097% P i 44,70% C w Vaccinio uliginosi-Betuletum pubescentis oraz 0,868% N, 0,085% P i 44,70% C w Empetro nigri-Pinetum. Zmienna koncentracja azotu i fosforu w pędach badanych gatunków borówek wykazuje dodatnią korelację tych pierwiastków. Nadziemna produkcja pierwotna netto Vaccinium myrtillus wynosi 534,905 kg/ha w Vaccinio uliginosi-Betuletum pubescentis oraz 216,594 kg/ha w nadmorskim borze bażynowym. Vaccinium vitis-idaea w Empetro nigri-Pinetum osiąga 155,283 kg/ha produkcji pierwotnej netto oraz jedynie 113,220 kg/ha w Vaccinio uliginosi-Betuletum pubescentis.
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