Table 3 Percentage changes of crop-specific blue water use (BWU) and green water use for irrigated crops (GWU_I) and rainfed crops (GWU_R) with different \({K}_{c}\) and crop calendars.

Crop	BWU				GWU_I				GWU_R
Crop	\({K}_{c}\)−15	\({K}_{c}\) + 15	length−15	length + 15	\({K}_{c}\)−15	\({K}_{c}\) + 15	length−15	length+15	\({K}_{c}\)−15	\({K}_{c}\)+15	length−15	length+15
Winter wheat	−36.62	39.27	−28.03	30.44	−2.62	4.61	−8.55	9.01	−3.18	5.03	−8.27	8.41
Spring wheat	−31.25	33.04	−16.53	14.54	−2.35	1.58	−7.70	7.59	−2.89	1.94	−6.93	6.65
Spring maize	−36.02	40.38	−12.57	15.44	−4.04	2.79	−8.08	6.83	−4.80	3.30	−7.09	6.07
Summer maize	−38.71	44.34	−15.95	19.13	−4.92	3.43	−8.40	7.08	−5.80	3.96	−7.73	6.52
Early rice	−24.92	26.20	−18.06	20.47	−2.73	9.12	−13.52	12.24	—	—	—	—
Late rice	−24.34	25.36	−8.64	7.55	−4.83	3.71	−7.37	6.11	—	—	—	—
Single rice	−22.01	22.68	−8.12	6.93	−3.63	2.76	−7.03	5.79	—	—	—	—
Soybean	−29.95	32.07	−11.60	11.21	−3.45	2.73	−9.19	8.22	−4.18	3.23	−7.82	7.05
Potatoes	−27.27	29.36	−9.19	9.14	−3.66	3.01	−11.06	10.01	−4.15	3.49	−10.48	9.61
Cotton	−33.32	36.05	−13.97	12.28	−3.60	2.61	−7.04	6.17	−3.82	2.78	−6.19	5.47
Sugarcane	−44.63	53.38	−6.16	5.25	−5.58	3.30	−2.06	1.59	−5.87	3.61	−2.08	1.61
Sugar beet	−23.55	23.93	3.16	−5.01	−1.49	1.09	−4.17	3.11	−1.92	1.44	−3.33	2.50
Groundnut	−30.26	32.46	−12.19	10.31	−4.29	3.13	−9.10	7.98	−4.49	3.31	−8.06	7.05
Spring rapeseed	−29.59	31.20	−13.34	9.71	−2.13	1.51	−5.81	5.23	−2.93	1.96	−4.97	4.26
Winter rapeseed	−38.21	42.63	−30.04	32.01	−7.22	5.44	−9.97	10.74	−8.26	6.19	−9.69	10.04

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