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Risk assessment of climate change impacts and the post-mining land reclamation on the example of the “Brzeziny” Natural Aggregate Mine

100%
Pawelczyk K.
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
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2018
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tom 50
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nr 1
2

Gravel pits as habitat islands: floristic diversity and vegetation analysis

84%
Bzdon G.
Polish Journal of Ecology
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2008
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tom 56
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nr 2
239-250
Open-cut excavations formed as a result of exploitation of mineral deposits are the least studied ecological sites. Habitat heterogenity is reflected by remarkable floristic and phytocoenotic diversity. Being isolated by the surrounding vegetation of contrasting types – they can be considered as “habitat islands”. Twenty excavations (area from 100 m² to 2 ha) were selected – 10 located in cropland, 10 – in coniferous forest. The intensiveness of gravel pit exploitation was differentiated. Some of them were exploited, other ones were abandoned 10–30 years ago. The floristic records were taken during summer period in each pit and in near-by vegetation at the distance not larger than 200 m. As much as 280 species of vascular plants were found in 10 selected gravel pits surrounded by coniferous forest communities, which contained only 111 taxa. The flora of mid-field excavations was definitely richer that the flora of their surroundings. Sörensen’s similarity index (So ) for mid-forest gravel pits and their surroundings ranged between 27% and 40% while that for midfield gravel pits and their neighbourhood – from 15% to over 27%. The U Mann-Whitney test demonstrated that the number of species noted in selected gravel pits significantly differed from that in the surrounding. It was true for both (mid-forest Z = 3.70; P = 0.00021) and mid-field gravel pits (Z = 3.78; P = 0.00016). Native species were dominating in the flora of both mid-field and mid-forest excavations (77% and 82 % respectively). Hemicryptophytes were found to dominate (46%) over other groups of life forms in both types of gravel pits. A high contribution of terophytes – over 19% in mid-forest excavations and over 25% in mid-field ones is noteworthy. The results showed that gravel pits could play a role of enclaves for natural and semi-natural vegetation thus acting as local centres of floristic diversity in human modified monotonous agricultural or monospecies pine forest landscape.
3

Grasses [Poaceae] of the gravel-pits of the Siedlecka Upland [E Poland]

84%
Bzdon G., Krechowski J.
Electronic Journal of Polish Agricultural Universities. Series Biology
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2006
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tom 09
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nr 2
Data on share of grasses in the flora of selected 65 gravel-pits of the Siedlecka Upland as well as their ecological characterisation are presented in the paper. The Poaceae is one of the most species-rich families found in these localities. Among 60 grass species the most frequent include Arrhenatherum elatius, Dactylis glomerata subsp. glomerata and Elymus repens. The domination of meadow species from classes Molinio-Arrhenatheretea and Trifolio fragiferae-Agrostietalia stoloniferae as well as synanthropic grasses from classes Stellarietea mediae and Agropyretea intermedio-repentis was observed. The dominant life form of grasses are hemicryptophytes. Native species prevail over anthropophytes in the studied objects. This paper also presents the results of analysis of the flora based on ecological indicator values [21].
4

Charakterystyka małych zbiorników wodnych oraz możliwości ich rybackiego zagospodarowania. V.Nieużytki poeksploatacyjne surowców mineralnych

43%
Guziur J.
Acta Academiae Agriculturae ac Technicae Olstenensis. Protectio Aquarum et Piscatoria
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1989
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tom 16
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