Table 2 Association between the location of six demarcation tree species recorded in 2011 and land use in the 1880s in the Rapid Survey Map
| Â | Total number of individuals | Farmland | Forest | Shrub- and grassland | |||
|---|---|---|---|---|---|---|---|
Number of individuals (%) | Standardized residual | Number of individuals (%) | Standardized residual | Number of individuals (%) | Standardized residual | ||
Deutzia crenata Siebold et Zucc | 985 | 615 (62.4) | 5.3*** | 287 (29.1) | − 3.5** | 83 (8.4) | − 3.3** |
Pourthiaea villosa (Thunb.) DC | 149 | 46 (30.9) | − 6.9*** | 68 (45.6) | 3.7** | 35 (23.5) | 5.6*** |
Camellia sinensis (L.) Kuntze | 120 | 85 (70.8) | 3.1* | 34 (28.3) | −  0.9 | 1 (0.8) | − 3.6** |
Euonymus japonicus Thunb | 88 | 48 (54.5) | − 0.6 | 29 (33.0) | 0.1 | 11 (12.5) | 0.7 |
Celtis sinensis Pers | 74 | 35 (47.3) | − 1.8 | 32 (43.2) | 2.1 | 7 (9.5) | − 0.2 |
Morus ssp. | 70 | 26 (37.1) | − 3.5** | 28 (40.0) | 1.4 | 16 (22.9) | 3.5** |
Total | 1486 | 855 (57.5) | Â | 478 (32.2) | Â | 153 (10.3) | Â |