Stand development 18 years after gap creation in a uniform Douglas-fir plantation /

Bibliographic Details
Main Authors:	Curtis, Robert O. (Author), Harrington, Constance A. (Author), Brodie, Leslie C. (Author)
Format:	Government Document Book
Language:	English
Published:	Portland, OR : United States Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2018.
Series:	Research paper PNW ; RP-610.
Subjects:	Tree farms > Northwestern States. Douglas fir > Spacing > Northwestern States. Douglas fir > Thinning > Northwestern States. Forest biodiversity > Northwestern States. Douglas fir > Growth. Tree farms. Douglas fir > Spacing. Douglas fir > Thinning. Forest biodiversity. United States > Northwestern States.

Description
Abstract:	This report gives early results, 18 years after treatment and 30 years after planting, from a trial of early thinning and gap creation intended to increase biodiversity in a very uniform extensive Douglas-fir plantation. Gap creation has introduced canopy irregularity and a substantial hemlock component into what was originally a very uniform pure Douglas-fir plantation, produced some natural regeneration of Douglas-fir, and considerably changed diameter distributions. Long-term effects will depend on whether additional stand density manipulation is carried out in coming years.
Item Description:	Title from cover. "December 2017." Print format not distributed to depository libraries. "2018 -- 576-460 / 00639 Region Number 10"--Page 28.
Physical Description:	28 pages : illustrations (some color), color map ; 28 cm.
Bibliography:	Includes bibliographical references (pages 27-28).