please explain this paragraph to me
BAI responsiveness to drought was not definite in our results. However, declining trees showed a higher drought sensitivity and lower short-term drought recovery, compared to non-declining trees. PE showed a higher drought sensitivity and lower drought recovery compared to CO in two of the three years analyzed. Although PE faces more arid conditions, because of warmer temperatures and reduced precipitation, CO also experienced recurrent drought events in the last decades, but it yielded improved drought recovery. Here, the synergistic effect between selective logging and drought in A. alba dieback should be considered. For instance, the unmanaged forest of CO showed older trees, with a higher DBH. However, it should be noted that there were no marked differences in the BAI, at least regarding recent decades, nor between non-declining and declining trees. These results suggest that logging could have enhanced to some extent the growth rates of PE, as western A. alba populations have typically more limited climate conditions to grow and harbor less genetic diversity [35,36,37]. Although forest management, such as thinning, is made with the aim of increasing the growth rate of the remaining trees, in our study case, it is noticeable that long-term selective logging was addressed to felling the biggest trees with the fastest growth rates, promoting the result that the remaining trees are nowadays those with slower growth rates [12]. In this sense, logging would be still enhancing growth to some extent, but it might not be the norm. Indeed, previous studies found that the declining trees from managed stands have, on average, lower growth rates [17], as should be expected if we consider BAI as a proxy of the whole tree carbon balance.