Table 1. Geographic/climatic data of the study sites and chemical properties of rhizosphere soils of Miscanthus sinensis.
| Site (collection year) | ||||||
|---|---|---|---|---|---|---|
| Variable | Rankoshi (2005) | Hazu (2005) | Nago (2006/2007) | Atsuma (2006) | Ishikari (2007/2008) | Mukawa (2009) |
| Latitude/ longitude (n)a | 42°80′N/ 140°47′E | 34°80′N/ 137°15′E | 26°62′N/ 127°98′E | 42°73′N/ 141°87′E | 43°25′N/ 141°35′E | 42°85′N/ 142°26′E |
| Climatic zone (c) | Subarctic | Temperate | Subtropical | Subarctic | Subarctic | Subarctic |
| Location (c) | Hokkaido Isl. | Honshu Isl. | Okinawa Isl. | Hokkaido Isl. | Hokkaido Isl. | Hokkaido Isl. |
| Temperature/ precipitation (n) | 7.4°C/ 1,542 mm | 16.0°C/ 1,093 mm | 23.0°C/ 2,325 mm | 6.8°C/ 1,213 mm | 8.3°C/ 822 mm | 7.2°C/ 1,092 mm |
| Surrounding vegetation (c) | Deciduous broad-leaved trees | Evergreen broad-leaved trees | Casuarina-plantation and sugarcane | Deciduous broad-leaved trees | Coastal dune grassland | Deciduous broad-leaved trees |
| Land use/ habitat type (c) | Abandoned quarry | Abandoned quarry | Surrounding slope of sugarcane field | Primary grassland after clear cut | Natural grassland | Abandoned quarry |
| Soil type (c) | Acid sulfate soil | Acid sulfate soil | Acid sulfate soil | Sandy loam soil | Dune soil | Ultramafic soil |
| Soil chemical properties (n)b | ||||||
| pH (H2O) | 3.5−3.9 (3.0−5.4) | 4.0−4.4 (3.7−5.0) | 5.5−5.9 (3.5−5.7) | 5.5−5.9 (5.4−6.1) | 6.5−6.9 (5.9−7.3) | 7.0−7.4 (7.1−7.4) |
| Available P (mg kg-1) | 12.6 ± 1.5 | 38.7 ± 4.7 | 15.6 ± 2.8 | 6.7 ± 1.5 | 19.5 ± 1.9 | 1.7 ± 0.6 |
| Total N (g kg-1) | 0.24 ± 0.03 | 0.11 ± 0.01 | 0.78 ± 0.05 | 1.34 ± 0.14 | 0.41 ± 0.04 | 0.41 ± 0.11 |
| Total C (g kg-1) | 3.2 ± 0.5 | 3.1 ± 0.4 | 8.9 ± 0.8 | 19.5 ± 1.80 | 5.5 ± 0.7 | 8.3 ± 1.6 |
| Data source | An et al. (2008) | An et al. (2008) | An et al. (2008) and this study | An et al. (2008) | Kawahara & Ezawa (2013) | This study |
aLetters in parentheses represent the type of variable employed in community analyses: n, numerical variable; c, categorical variable.
bMean value ± SE is presented, except for pH for which a mode with a range (minimum–maximum) is indicated.