These changes, in combination with selective logging of large, fire-tolerant trees, have created conditions in which many of the original park-like forests have been converted into dense, fire-prone, and increasingly disease- and insect-prone stands.
(These changes; have created; conditions in which many of the original park-like forests have been converted into dense, fire-prone, and increasingly disease- and insect-prone stands) (many of the original park-like forests; have been converted; into dense, fire-prone, and increasingly disease- and insect-prone stands)
These changes many of the original park-like forests
have created have been converted
conditions in which many of the original park-like forests have been converted into dense, fire-prone, and increasingly disease- and insect-prone stands
into dense, fire-prone, and increasingly disease- and insect-prone stands