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나타났습니다. 토양 종자 은행에서 토종 식물의 출현은 삼잎국화 Rudbeckia laciniata
묘목에 의한 토양 표면의 빠른 음영으로 인해 낮습니다. 그러나 토종 종자가
종자은행에 남아 있기 때문에 정기적인 관리를 통해 침범된 지역의 복원을 촉진하는
역할을 할 수 있습니다.
출처
J?drzejczak E, Klichowska E, Nobis M (2022) Effect of Rudbeckia laciniata
invasion on soil seed banks of different types of meadow communities. Nature
Scientific Reports https://doi.org/10.1038/s41598-022-14681-1
3. 원 문
Effects of Rudbeckia laciniata on the soil seed bank
Rudbeckia laciniata (Asteraceae) is a rhizomatous perennial originating from the Eastern USA
and was introduced into the EPPO region as an ornamental plant at the beginning of the 17th
century. It prefers moist habitats, rivers streams and drainage ditches, ruderal habitats along
transportation networks. In invaded areas, it can form dense monocultures which can alter the
species composition of the habitat. The study was conducted in Southern Poland in two types
of abandoned meadows. The first location was outside a river valley in a fresh meadow, and
the second was within a river valley in a wet meadow. In each meadow, the soil seed bank
was sampled from sites dominated with R. laciniata (sites where it exceeds 70% of the
vegetation cover), sites of intermediate invasion (less than 70% cover but greater than 0%
cover), and sites where R. laciniata was absent. Soil samples were taken from each site from
the upper soil layer (0-5 cm) and the lower layer (5-10 cm) in early spring. The soil seed
bank was estimated using the seedling emergence method. Soil was placed on trays in a
greenhouse and emerging seedlings were identified. In the wet meadow, the seed bank of R.
laciniata in the invasion zone was 17 476 seeds/m2, and in the fresh meadow, it was 4132
seeds/m2. The majority of the R. laciniata seeds were located in the surface layer of soil. The
results showed that 47 % (in fresh meadow) and 56 % (wet meadow) of recorded species
occurred only in the soil seed bank, and were absent in aboveground vegetation. Emergence
of native plants from the soil seed bank is low due to rapid shading of the soil surface by R.
laciniata seedlings. However, as native seeds persist in the seed bank regular management may
act to promote the restoration of the invaded sites.
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묘목에 의한 토양 표면의 빠른 음영으로 인해 낮습니다. 그러나 토종 종자가
종자은행에 남아 있기 때문에 정기적인 관리를 통해 침범된 지역의 복원을 촉진하는
역할을 할 수 있습니다.
출처
J?drzejczak E, Klichowska E, Nobis M (2022) Effect of Rudbeckia laciniata
invasion on soil seed banks of different types of meadow communities. Nature
Scientific Reports https://doi.org/10.1038/s41598-022-14681-1
3. 원 문
Effects of Rudbeckia laciniata on the soil seed bank
Rudbeckia laciniata (Asteraceae) is a rhizomatous perennial originating from the Eastern USA
and was introduced into the EPPO region as an ornamental plant at the beginning of the 17th
century. It prefers moist habitats, rivers streams and drainage ditches, ruderal habitats along
transportation networks. In invaded areas, it can form dense monocultures which can alter the
species composition of the habitat. The study was conducted in Southern Poland in two types
of abandoned meadows. The first location was outside a river valley in a fresh meadow, and
the second was within a river valley in a wet meadow. In each meadow, the soil seed bank
was sampled from sites dominated with R. laciniata (sites where it exceeds 70% of the
vegetation cover), sites of intermediate invasion (less than 70% cover but greater than 0%
cover), and sites where R. laciniata was absent. Soil samples were taken from each site from
the upper soil layer (0-5 cm) and the lower layer (5-10 cm) in early spring. The soil seed
bank was estimated using the seedling emergence method. Soil was placed on trays in a
greenhouse and emerging seedlings were identified. In the wet meadow, the seed bank of R.
laciniata in the invasion zone was 17 476 seeds/m2, and in the fresh meadow, it was 4132
seeds/m2. The majority of the R. laciniata seeds were located in the surface layer of soil. The
results showed that 47 % (in fresh meadow) and 56 % (wet meadow) of recorded species
occurred only in the soil seed bank, and were absent in aboveground vegetation. Emergence
of native plants from the soil seed bank is low due to rapid shading of the soil surface by R.
laciniata seedlings. However, as native seeds persist in the seed bank regular management may
act to promote the restoration of the invaded sites.
- 620 -
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