Extended Data Fig. 7: Three-dimensional surface models of the relationships among soil respiration, soil temperature, and soil moisture in the three forests.
From: Temporal patterns of soil carbon emission in tropical forests under long-term nitrogen deposition

Polynomial regression models of soil respiration against soil temperature and moisture (in combination of the control, low N-addition, and medium N-addition plots; Exp 1) from 2011 to 2019 (a, c, e). Polynomial regression models of soil respiration against soil temperature and moisture (in combination of the control and high N-addition plots: Exp 2) from 2007 to 2019 (b, d, f). C: control; L: low N addition; M: medium N addition; H: high N addition.