Vertical and longitudinal variations in plant communities of drawdown zone of a monsoonal riverine reservoir in South Korea

Table 2 Comparisons of numbers of seeds of the main species detected in soil seedbanks from two plant community types, either dominated by annuals or perennials, within the drawdown zone of the Soyangho Reservoir, South Korea. The elevations of the sampled communities and the Sorensen Similarity Indices calculated between the composition of the seedbank and their respective plant communities presented

Soil seedbank	Plant community
	Annual				Perennial
	Persicaria trigonocarpa	Bidens frondosa	Persicaria nodosa	Total (mean ± SE)	Carex orbicularis var. brachylepis	Scirpus radicans	Phalaris arundinacea	Total (mean ± SE)
No. of seeds (m⁻²)	68,917	6583	19,417	31,639 ± 19,004^a	10,750	24,833	7083	14,222 ± 5410^a
No. of species	11	11	9	10.3 ± 0.7^a	14	11	9	11.3 ± 1.5^a
Sorensen Similarity (%)	50.0	28.6	31.6	36.7 ± 6.7^a	16.7	10.0	23.5	16.7 ± 3.9^b
Elevation (m a.s.l.)	169	172	166	169.0 ± 1.7^a	186	188	181	185.0 ± 2.1^b

^{a, b}The different superscripts between values of the annual and perennial communities indicate the significant difference at α=0.05 by t test

ISSN: 2288-1220