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Table 2 Distribution of S. borealis, site characteristics, and vegetation layer structure of the surveyed plots from the five national parks

From: Distribution and synchronized massive flowering of Sasa borealis in the forests of Korean National Parks

Properties Seorak Odae Sobaek Deogyu Jiri
S. borealis patches No. of patches found 202 41 32 71 90
Patch size (m2)
 Whole slope (%) 67(1) 85 91 94 67
 1000 ~ 2500 (%) 8 0 0 0 2
 100 ~ 1000 (%) 16 5 3 3 7
 ≤ 100 (%) 9 10 6 3 24
Vegetation Type Quercus mongolica-dominated deciduous forest Abies holophylla mixed deciduous forest Quercus mongolica-dominated deciduous forest Quercus mongolica-dominated deciduous forest Quercus mongolica-dominated deciduous forest
Layer structure
 Tree layer (%) 91.7 ± 0.4 90.4 ± 1.0 89.6 ± 1.3 90.1 ± 1.2 85.2 ± 1.4
 Subtree layer (%) 32.9 ± 1.3 40.8 ± 3.2 36.1 ± 3.2 47.2 ± 2.8 58.4 ± 2.3
 Shrub layer (%) 29.6 ± 1.3 26.1 ± 2.0 27.2 ± 2.2 33.1 ± 2.1 32.6 ± 1.3
 Herb layer (%) 65.2 ± 2.6 86.7 ± 2.8 90.8 ± 2.0 94.3 ± 1.0 91.6 ± 0.5
Site Elevation (range, m) 188–1097 672–1172 741–1317 634–1610 630–1618
Slope (range, °) 5–50 5–35 10–60 5–60 0–70
Topography
 Valley and lower slope (%) 72(2) 73 50 39 48
 Upper and middle slope (%) 16 27 38 34 33
 Ridge and top (%) 13 13 27 19
  1. (1) Relative frequency of each patch size within a park. In Mt. Seorak, frequency was calculated except for eight missing patches
  2. (2) Relative frequency of each topography within a park