The Variations of Satellite-Based Ecosystem Water Use and Carbon Use Efficiency and Their Linkages with Climate and Human Drivers in the Songnen Plain, China

Table 1

Area percentages of the correlation coefficients between WUE, CUE, and climate factors (significant positive correlation (r > 0, ): no significant positive correlation (r > 0, ), no significant negative correlation (r < 0, ), and significant negative correlation (r < 0, )).

	Correlation	Precipitation	Sunshine duration	Relative humidity	Temperature
WUE	Significant positive correlation	8.21	1.99	17.48	0.27
	No significant positive correlation	67.18	32.11	73.28	33.62
	No significant negative correlation	24.06	59.15	9.22	64.54
	Significant negative correlation	0.55	6.75	0.02	1.57
CUE	Significant positive correlation	10.45	1.59	1.42	0.04
	No significant positive correlation	61.82	41.45	59.54	12.98
	No significant negative correlation	26.29	54.39	38.61	80.30
	Significant negative correlation	1.44	2.57	0.43	6.68