The responses to the open question “What could be the cause of the death of this tree?” Suspected causes (answers): 1: a disease; 2: I do not know/no response; 3: water shortage; 4: pollution; 5: bad management (pruning); 6: age; 7: adverse climatic factors; 8: others (include vandalisms, insects, wind, thunderbolt, soil defects). For details of levels of variables, see Table 1. All χ2 tests are significant for P < 0.01.
| Variables & levels | Answers, % | Σ % | χ2 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ||||
| Gender | Men | 43.8 | 12.0 | 8.6 | 13.6 | 8.4 | 3.4 | 2.6 | 7.6 | 100.0 | |
| Women | 26.0 | 31.6 | 11.7 | 4.3 | 5.2 | 10.4 | 2.0 | 8.8 | 100.0 | ||
| Avg. % | 35.5 | 21.2 | 10.1 | 9.2 | 6.8 | 6.7 | 2.3 | 8.2 | 100.0 | 22.9 | |
| Age | 15-19 | 17.7 | 43.5 | 2.0 | 18.4 | 4.0 | 8.2 | 1.4 | 4.8 | 100.0 | |
| 20-30 | 40.0 | 19.2 | 10.0 | 5.6 | 3.7 | 5.6 | 3.7 | 12.2 | 100.0 | ||
| 31-50 | 39.8 | 8.0 | 15.6 | 4.3 | 12.3 | 6.2 | 2.2 | 11.6 | 100.0 | ||
| 50+ | 36.3 | 24.7 | 8.8 | 13.0 | 6.2 | 7.6 | 1.6 | 2.0 | 100.0 | ||
| Avg. % | 35.5 | 21.2 | 10.1 | 9.2 | 6.8 | 6.7 | 2.3 | 8.2 | 100.0 | 85.6 | |
| Education | Junior | 12.7 | 41.8 | 7.6 | 8.8 | 7.6 | 2.5 | 10.1 | 8.9 | 100.0 | |
| High | 42.9 | 18.8 | 12.5 | 9.5 | 7.2 | 3.7 | 1.8 | 3.6 | 100.0 | ||
| Degree | 19.1 | 21.1 | 2.6 | 8.2 | 5.7 | 18.6 | 1.0 | 23.7 | 100.0 | ||
| Avg. % | 35.5 | 21.2 | 10.1 | 9.2 | 6.8 | 6.7 | 2.3 | 8.2 | 100.0 | 135.6 | |
| Occupation | Housew. | 29.1 | 32.4 | 8.8 | 4.9 | 6.9 | 9.8 | 1.6 | 6.5 | 100.0 | |
| Retired | 39.1 | 20.2 | 6.6 | 7.6 | 5.4 | 4.3 | 3.8 | 13.0 | 100.0 | ||
| Student | 16.6 | 17.1 | 9.9 | 17.2 | 9.4 | 9.9 | 2.8 | 17.1 | 100.0 | ||
| Profess. | 56.2 | 13.9 | 6.9 | 13.9 | 4.2 | 2.1 | 2.1 | 0.7 | 100.0 | ||
| Manual | 45.4 | 9.1 | 25.4 | 5.4 | 9.2 | 2.8 | 1.8 | 0.9 | 100.0 | ||
| Other | 68.4 | 15.7 | 0.0 | 5.3 | 5.3 | 5.3 | 0.0 | 0.0 | 100.0 | ||
| Avg. % | 35.5 | 21.2 | 10.1 | 9.2 | 6.8 | 6.7 | 2.3 | 8.2 | 100.0 | 176.1 | |