Spatial-Temporal Variation of Aridity Index of China during 1960–2013

Table 2

Variations of various climate variables averaged from 1960 to 2013.

	YaRB	SERB	HaRB	SRB	HuRB	YeRB	LRB	NWRB	SWRB	PRB
(°C)	0.226	0.258	0.273	0.275	0.111	0.353	0.231	0.345	0.333	0.125
(°C)	0.18	0.214	0.285	0.337	0.202	0.277	0.238	0.343	0.282	0.14
(°C)	0.238	0.243	0.41	0.485	0.246	0.331	0.343	0.486	0.358	0.199
Humidity (%)	−0.536	−0.836	−0.6	−0.465	−0.877	−0.511	−0.117	−0.133	−0.34	−0.637
Vapor pressure (kPa)	0.003	−0.029	0.055	0.077	0.187	0.027	0.076	0.074	0.049	−0.034
Wind speed (m·s^−1)	−0.087	−0.132	−0.163	−0.189	−0.108	−0.075	−0.185	−0.152	−0.053	−0.044
Sunshine hour (h)	−0.112	−0.164	−0.233	−0.095	−0.185	−0.084	−0.185	−0.043	0.009	−0.133
Precipitation (mm)	−2.813	20.316	−13.107	0.679	−8.647	−8.508	−4.768	6.018	3.049	4.445

99% confidence level; 95% confidence level; the slope is the value of aridity index per decade.