Table 3.
Mann-Kendall and Mann–Whitney test results of trend for temperature time series
| Station | Change Point | Change point | Mann–Kendall test | Mann–Whitney test | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| before | after | Z C | β | H 0 | n 1 | n 2 | Zc | H 0 | ||
| Abaga Banner | 1993 | 0.75 | 2.56 | 6.08*** | 0.05 | R | 40 | 18 | 5.12*** | R |
| Zhenglan Banner | 1994 | 1.81 | 3.23 | 4.73*** | 0.05 | R | 23 | 17 | 4.64*** | R |
| Zhengxiangbai Banner | 1994 | 1.97 | 3.28 | 4.88*** | 0.06 | R | 23 | 17 | 4.34*** | R |
| Sunitezuo Banner | 1994 | 2.69 | 4.09 | 5.26*** | 0.04 | R | 38 | 17 | 5.05*** | R |
Zc: The significance levels tested are 0.001 (***), 0.01 (**), and 0.05 (*). β: Positive (negative) value indicates an upward (downward) trend
R reject H 0, A accept H 0