Table 3 Positive parameters that determined the presence of An.sinensis larvae in water bodies in the village surroundings by Chi-square analysis
Variable | χ2 | df | Sig. |
|---|---|---|---|
Breeding site type | 18.214 | 4 | 0.001** |
The stability of mosquito larval breeding site | 5.356 | 1 | 0.021* |
Water depth | 11.412 | 2 | 0.003** |
Predator | 8.091 | 1 | 0.004** |
pH | 11.477 | 3 | 0.009** |
COD | 34.377 | 3 | 0.000** |
Ammonia nitrogen | 57.233 | 3 | 0.000** |
Sulphate | 13.344 | 3 | 0.004** |
Chloride | 12.461 | 3 | 0.006** |
Chromaticity | 9.690 | 3 | 0.021* |