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ECOPHYSIOLOGICAL RESPONSE OF INVASIVE SPECIES ON SPOIL HEAP WITH DIFFERENT TYPE OF RECLAMATION: SOLIDAGO GIGANTEA AITON STUDY
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Natalia Malcherczyk, Ewa Szwajczak, Magdalena Biela, Edyta Sierka
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10.5593/sgem2024/5.1
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1314-2704
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English
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24
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5.1
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• Prof. DSc. Oleksandr Trofymchuk, UKRAINE • Prof. Dr. hab. oec. Baiba Rivza, LATVIA
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Coal mine spoil heaps are subject to reclamation processes in order to restore their environmental, social and economic functions. The reclamation may consist of placing soil layers (topsoil, TS) on the surface of the bare rock (carboniferous rock accompanying the coal seam) and then planting vegetation. However, waste rock (bare rock, BR) is usually left in place without overburden due to high costs. In both cases, there is a spontaneous succession of consisting vegetation of native and alien species.
In this study, we compare the efficiency of seed germination populations of the alien invasive species Solidago gigantea Aiton (Sg) originating from the TS and BR areas of the same spoil heap and the ecophysiological response of plants grown from germinated seeds. The research was carried out under laboratory conditions, measuring the content of pigments in leaves, the efficiency of the photosynthetic apparatus (EPA), plant height and response to environmental stress factors (H2O2, MDA concentration). Significant differences between the two groups were tested using the t-test (p<0.05). The results showed that the seeds from SgBR germinated (GP) more effectively (SgBR–93.5%, SgTS–82.69%) and had a higher germination synchrony index (Z) (SgBR–0.21, SgTS–0.16). However, the seeds from SgTS showed a higher mean germination time (MGT) (SgBR–5.75, SgTS–7.9). There was no statistically significant difference between plants grown from SgBR and SgTS seeds in plant height, content of chlorophyll a, flavonols and anthocyanins. However, plants from SgBR seeds exhibited higher stress tolerance, indicated by higher H2O2 content and better photosynthetic apparatus performance parameters–higher FV/FM, PIabs, PItotal, FV/FO, and lower VJ, VI. Further studies at the genomic level of both populations are recommended to obtain more detailed information on the adaptation mechanisms. |
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conference
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
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24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
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107-116
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1 - 7 July, 2024
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website
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9964
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novel ecosystems, reclamation processes, coal-mine spoil heaps, seeds germination
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