Spatial and Temporal Variations of Terrestrial Evapotranspiration in the Upper Taohe River Basin from 2001 to 2018 Based on MOD16 ET Data

Table 1

Results of M-K test for annual and seasonal ET and PET in whole basin and subzones during 2001–2018 (slope unit: mm/year).

	Region	Yearly		Spring		Summer		Fall		Winter
		Z	Slope	Z	Slope	Z	Slope	Z	Slope	Z	Slope
ET	Basin	2.35	3.97	3.11	1.79	1.14	0.94	0.68	0.44	0.87	0.48
	Western	1.97	3.42	2.42	1.61	0.53	0.53	0.76	0.36	1.11	0.55
	Northern	3.03	4.49	3.18	1.96	1.74	1.75	0.45	0.32	0.29	0.12
	Southern	2.20	4.04	3.18	1.83	0.61	0.73	0.45	0.45	0.87	0.40
PET	Basin	−1.74	−8.45	−0.53	−1.08	−1.44	−3.57	−2.12	−3.45	−0.54	−1.49
	Western	−1.29	−9.70	−0.68	−1.04	−0.98	−2.76	−2.05	−3.14	−0.70	−0.98
	Northern	−2.12	−9.10	−0.30	−0.43	−1.36	−4.00	−2.12	−3.45	−0.87	−1.56
	Southern	−1.67	−9.22	−0.30	−0.84	−1.36	−4.00	−2.05	−3.46	−0.70	−1.30