Precommercial crop-tree thinning in a mixed northern hardwood stand
By: Nancy G. Voorhis.
Contributors: Northeastern Forest Experiment Station (Radnor, Pa.)
Series: Research paper NE -- 640.; Research paper NE (Broomall, Pa. : 1988) -- 640.
Publisher: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1990
Place of publication: Radnor, Pa
Language: eng
Subjects: Tree crops -- Vermont.; Hardwoods -- Vermont -- Thinning.; Trees -- Vermont -- Growth.; Yellow birch.; Paper birch.; Sugar maple -- Vermont.
Notes: Cover title.

Includes bibliographical references (p. 4).