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Paprocie wychodzą z cieni i wkraczają do miast

Piwowarski Bartosz

Zieleń Miejska

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2023

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Nr 10

30--33

PL

Paprocie to jedne z najdłużej żyjących na Ziemi organizmów roślinnych. Pierwotne paprotniki pojawiły się na przełomie syluru i dewonu, ok. 400 mln lat temu, dając początek współcześnie żyjącym paprociom. Przez miliony lat dostosowywały się do różnorodnych warunków klimatycznych i siedliskowych, co obecnie przejawia się ich dużym bogactwem gatunkowym. Dzięki temu można je również szeroko wykorzystywać w ogrodnictwie – w założeniach nie tylko naturalistycznych, ale także miejskich.

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Assessment of Grasslands Improvements for Faunistic Purposes in a Mountain Area of Central Italy

Argenti Giovanni, Messeri Alessandro, Ponzetta Maria Paola

Journal of Ecological Engineering

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2023

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Vol. 24, nr 3

366--377

EN

Restoration of grassland habitats useful for wildlife is an intervention often carried out in various marginal environments (such as some mountainous areas) where agriculture and grassland management have undergone deep changes in recent decades. To assess some of these interventions, a study was conducted in an Apennine reserve in Central Italy, where some grassland areas recovered through different techniques were identified, represented by shrub clearing followed by sowing of a forage mixture and shrub clearing alone, which were compared with natural areas on which no interventions were carried out. Several parameters related to the botanical composition and quality of the recovered pastoral resources were analysed. In addition, in three different experimental sites, further in-depth investigations were carried out to assess the actual animal frequentation and the impact of the in-take of the wild animals present (mainly red deer) on the occurring vegetation. Results highlighted the importance of recovery interventions in these situations, the success of mechanical treatments (even if represented by clearing shrubs alone), and the real appreciation for the recovered areas by wildlife, whose utilisation on different vegetal species could be assessed, highlighting a diverse feeding behaviour for some taxa, compared to domestic animals.

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Distribution of Mercury in Soil, Water, and Vegetable Fern in a Former Gold Mining Area – Evidence from Nagan Raya Regency, Aceh Province, Indonesia

Nisah Khairun, Muslem Muslem, Ashari Tengku Muhammad, Afkar Majral, Iqhrammullah Muhammad

Journal of Ecological Engineering

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2022

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Vol. 23, nr 8

30--39

EN

The mercury contamination associated with the former intense illegal gold mining activities is suspected in the watershed of Krueng Cot Satu, Nagan Raya Regency, Aceh Province, Indonesia. The aim of this study was to evaluate the mercury contamination residue in the water, soil, and vegetable fern (Pityrogramma calometanos (L)) The samples were collected from locations in the already closed artisanal gold mining sites. The sampling locations were purposively determined by considering their closeness to the previous gold mining activities sites. The content of mercury was analyzed using flow injection for atomic spectroscopy – atomic absorption spectroscopy. The method used was validated by linearity, Limit of Detection (LoD), Limit of Quantification (LoQ), Relative Standard Deviation (RSD), and recovery. The validation test showed that this method is well linear, sensitive, accurate, and precise with a correlation coefficient, LoD, LoQ, RSD and recovery of 0.9999, 0.0477 μg/L, 0.1447 μg/L, 2.96% and 95–105%, respectively. Herein, it was found that the concentrations of mercury contents in the water samples were below the detectable range. However, a high range of mercury concentration of 0.236 – 0.328 μg/g was found in soil, with the highest concentration obtained in the sample collected from the riverbank. The fern sample collected near the riverbank contained mercury in all its parts and concentrated in the root (0.408 μg/g in the leaves, 0.276 μg/g – stalks, and 9.994 μg/g – roots). Meanwhile, the absence of mercury contamination was obtained in the leaves and stalks of the fern samples collected far from the riverbank. The roots, however, were detected with mercury contamination with the highest concentration reaching 27.660 μg/g. Despite its disappearance in the water, mercury contamination residue from the former artisanal gold mining activities still could be traced in the soil and heavy metal accumulating plant – P. calometanos (L).

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Paprocie w naszych parkach

Skutnik E.

Zieleń Miejska

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2017

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Nr 7-8

43--44

PL

Paprocie to szczególna grupa roślin, które nie wydają kwiatów i nasion, lecz zarodniki. Należą do najstarszych roślin lądowych, a po raz pierwszy pojawiły się na Ziemi ok. 400 mln lat temu, znacznie wcześniej niż te, które wytwarzają kwiaty. Występują we wszystkich strefach klimatycznych, z wyjątkiem obszarów skrajnie suchych lub wybitnie chłodnych