Analysis of Changes in Precipitation and Drought in Aksu River Basin, Northwest China

Table 6

Results of the statistical tests for the monthly precipitation during the period 1960–2010.

Station	Test	Month
		January	February	March	April	May	June	July	August	September	October	November	December
Aksu		0.233	0.760	0.411	−0.579	0.276	1.755	0.796	−0.926	1.365	0.976	0.000	1.588
		0.410	0.884	0.586	−0.279	0.232	2.014	0.793	−0.890	1.318	1.203	0.789	2.060
		0.023	0.060	0.058	0.016	0.011	0.184	0.036	−0.075	0.138	0.122	−0.008	0.038
Aheqi		0.139	0.383	0.789	0.545	0.016	−0.244	1.576	0.390	1.673	2.795^*	0.798	1.088
		0.159	0.319	0.816	0.615	0.026	−0.146	1.766	0.524	1.729	3.249^*	1.020	1.250
		0.014	0.019	0.129	0.019	0.058	−0.054	0.513	0.236	0.877	0.227	−0.001	0.024
Alar		1.454	1.175	−0.102	−0.171	0.073	1.276	1.186	−0.016	−0.552	0.026	0.603	1.523
		1.964	2.166^*	0.658	0.494	−0.025	1.439	1.309	0.021	−0.399	0.521	2.088^*	2.747^*
		0.025	0.028	0.023	−0.014	−0.050	0.078	0.106	0.069	−0.067	0.013	−0.003	0.027
Baicheng		1.206	1.007	0.253	0.262	1.089	2.193^*	1.901	1.324	2.161^*	1.322	0.886	1.605
		1.394	0.786	0.247	0.339	1.155	2.477^*	1.926	1.175	2.207^*	1.339	1.313	1.783
		0.042	0.083	0.037	−0.025	0.077	0.268	0.234	0.122	0.228	0.231	0.089	0.042
Keping		0.311	1.171	1.308	−0.198	−0.073	0.918	1.706	1.405	2.278^*	1.363	−0.249	0.937
		0.525	1.064	1.665	−0.185	−0.026	0.999	1.849	1.485	2.447^*	1.726	1.112	1.482
		0.045	0.037	0.102	0.009	−0.014	0.112	0.273	0.367	0.284	0.079	−0.012	0.031
Kuche		2.633^*	0.919	−0.694	0.679	0.699	2.437^*	0.999	1.357	0.553	0.513	1.896	2.533^*
		2.893^*	1.024	−0.541	0.773	0.808	2.747^*	1.057	1.279	0.476	0.651	2.626^*	3.113^*
		0.048	0.052	−0.036	0.023	0.106	0.207	0.061	0.063	0.019	0.013	−0.010	0.039
Turgat		0.033	−0.455	0.723	0.227	−0.382	1.527	0.796	0.398	−0.106	2.713^*	0.122	2.211^*
		−0.046	−0.428	0.619	0.254	−0.387	1.498	0.794	0.392	−0.066	2.810^*	0.190	2.307^*
		−0.003	−0.018	0.019	0.091	−0.058	0.285	0.164	0.130	0.023	0.253	−0.006	0.093
Wuqia		0.708	−1.122	−0.228	−0.041	0.195	1.600	1.787	−0.024	0.699	2.847^*	−0.016	1.027
		0.699	−1.394	−0.375	−0.097	0.007	1.822	2.194^*	−0.008	0.677	2.983^*	−0.151	1.176
		0.032	−0.039	−0.048	0.011	−0.092	0.465	0.407	−0.076	0.141	0.239	−0.015	0.029
Kashi		0.507	−0.638	1.455	−0.156	0.602	0.999	1.406	0.268	1.223	3.249^*	0.365	1.035
		0.685	−0.387	1.758	−0.164	0.401	1.146	1.327	0.199	1.294	3.908^*	1.071	1.430
		0.048	−0.015	0.106	−0.058	−0.115	0.096	0.111	−0.025	0.104	0.170	0.024	0.020

: Mann–Kendall test, : Spearman’s Rho test, and : slope of linear regression.
Bold characters represent trends identified by 2 statistical methods together.
^*Statistically significant trends at the 5% significance level.