Grade Change Protection for Valuable Trees
Nearly everyone has noticed the death of trees around or adjacent to which grade changes have been made. Deaths from this cause are especially noticeable along the slopes of roads which have been recently constructed or realigned and in connection with operations around new buildings where grade changes are involved. Changes do not have to be great to cause serious consequences; fills of only a few inches of fine-textured soil may, and not infrequently do, cause death through a change of underground relationships. Iu the following article detailed methods are given for determining what trees should be protected and how to protect them.
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Document Type: Journal Article
Affiliations: National Park Service
Publication date: 01 November 1939