· Gessel (1991 ). While reduced growth is a clear indicator that a tree is under some form of...
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· Gessel (1991 ). While reduced growth is a clear indicator that a tree is under some form of environmental stress, the source of the stress is not always obvious. Environ- mental
![Environ[1]. Studies](https://img.pdfslide.us/doc/110x75/54fbed384a7959434c8b52fa/environ1-studies.jpg)
