Figure 4

brGDGT-based MATs along studied altitudinal gradients on Mt. Fanjing, China, calculated according to the calibration from Peterse²⁶ and De Jonge³⁷: green crosses are samples from the shady slope and blue crosses are samples from the sunny slope. Samples from the sunny slope show a lapse rate of 0.89 °C/100 m (r² = 0.80 and RMSE = 1.25 °C; MBT′_5ME-MAT), compared with Meghalaya³⁵, India (rectangle; r² = 0.66; MBT′-MAT), Mt. Gongga³¹, China (triangle; r² = 0.56; MBT′-MAT), Mt. Kilimanjaro²⁷, Tanzania (circle; r² = 0.77; MBT′-MAT), Mt. Xiangpi³³, China (square; r² = 0.60; MBT′-MAT), Mt. Rungwe²⁸, Tanzania (pentagon; r² = 0.74; MBT′-MAT) and Mt. Shennongjia³⁴, China (inverted triangle; r² = 0.90; MBT′_5ME-MAT).