Fig. 11.

Trajectories generated in the subspace defined by the change rates of the CI vs. the NDVI for simulations of (i) a tree in which both C_ab and cLAI declined over time and later recovered (dots), (ii) a similar tree in which only C_ab changed (squares), and (iii) a similar tree in which only cLAI changed (stars). The arrows in the plot show the direction of the trajectory as trees undergo decline and then recover. The black (B1) and grey (B2) lines indicate the boundaries that establish the baselines for healthy and severely declining trees, respectively.