Recognition of Changes in Air and Soil Temperatures at a Station Typical of China’s Subtropical Monsoon Region (1961–2018)

Table 1

Relationship between annual mean air and soil temperatures.

Soil depth (cm)	Regression equation	Correlation coefficient
0	y = 0.9787x + 2.5523	0.914
20	y = 0.748x + 6.181	0.858
80	y = 0.529x + 10.147	0.798
320	y = 0.4908x + 10.785	0.700

Note. x: annual mean air temperature (°C); y: annual mean soil temperature (°C).