Impacts of Climatic Change on Reference Crop Evapotranspiration across Different Climatic Zones of Ningxia at Multi-Time Scales from 1957 to 2018

Table 8

Sensitive coefficient of the main climate factors to ET₀ from 1957 to 2018 in Ningxia at seasonal scale.

Region	Season	Tmean	Tmax	Tmin	SD	U2	RH
NYR	Spring	0.26	0.47	0.06	0.24	0.28	−0.30
	Summer	0.32	0.52	0.13	0.35	0.19	−0.33
	Autumn	0.24	0.42	0.06	0.20	0.30	−0.54
	Winter	0.11	0.10	0.12	0.04	0.42	−0.59
CAZ	Spring	0.24	0.43	0.06	0.23	0.25	−0.34
	Summer	0.30	0.47	0.12	0.36	0.17	−0.33
	Autumn	0.21	0.37	0.06	0.22	0.26	−0.48
	Winter	0.28	0.43	0.12	0.42	0.41	−0.48
SMA	Spring	0.16	0.29	0.03	0.25	0.23	−0.36
	Summer	0.19	0.31	0.08	0.39	0.13	−0.35
	Autumn	0.14	0.25	0.03	0.21	0.25	−0.65
	Winter	0.08	0.08	0.09	0.06	0.40	−0.64
NX	Spring	0.23	0.42	0.04	0.24	0.25	−0.33
	Summer	0.29	0.46	0.11	0.36	0.18	−0.34
	Autumn	0.21	0.36	0.06	0.21	0.28	−0.54
	Winter	0.18	0.24	0.11	0.77	0.41	−0.55