*3.1. Leaf Anth Statistics*

The results of the statistical analysis are reported in Table 1. The range of Anth in red leaves was 0.04–0.76 <sup>μ</sup>g·cm<sup>−</sup>2, which was wider than that in healthy leaves (0.03–0.11 <sup>μ</sup>g·cm<sup>−</sup>2), although the Anth of two leaves overlapped. The average Anth of red leaves (0.19 <sup>μ</sup>g·cm<sup>−</sup>2) was much higher than that of healthy leaves (0.06 <sup>μ</sup>g·cm<sup>−</sup>2). SD, variance, and CV of healthy leaves were small, their Anth distribution was concentrated, and the spatial variability in values was low. In contrast, SD, variance, and CV of red leaves were large, their Anth distribution was scattered, and the spatial variability in values was high.


**Table 1.** Anth statistics of healthy and red leaves.
