Download or read book A Procedure for Selection Marking in Hardwoods written by George R. Trimble (Jr.) and published by . This book was released on 1974 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Method for Applying Group Selection in Central Appalachian Hardwoods written by Gary W. Miller and published by . This book was released on 1995 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Public concern over the adverse visual impact of clearcutting has heightened interest in developing and testing alternative regeneration practices for central Appalachian hardwoods. When applied properly, group selection, which entails making small openings within a timber stand at regular intervals, can meet aesthetic goals while providing suitable light conditions to reproduce shade-intolerant species. Volume control and residual stand density are used to regulate periodic cuts, which include volume removed to create openings plus volume removed between openings to improve the quality and distribution of the residual stand. In central Appalachian hardwoods, openings must have a minimum size of 0.4 acre; all stems 1.0 inch d.b.h. and larger are cut to reproduce desirable shade-intolerant species. Maximum opening size is based on aesthetic requirements or other management constraints. Where reproduction of shade-intolerant species is acceptable, openings can be as small as a space occupied by a few trees. Openings should be located using the worst first approach to give the growing space occupied by mature trees or risky trees to faster growing, desirable regeneration. The residual stand between openings should be improved by cutting poor quality or high-risk trees. The recommended residual basal area in sawtimber-size trees (11.0 inches d.b.h. and larger) is related to northern red oak site index (SI): 70 to 85 ft2/acre for SI 80.55 to 70 ft2/acre for SI 70, and 40 to 55 ft2/acre for SI 80. These field-tested methods can help forest managers initiate group selection in second-growth Appalachian hardwoods. Guidelines are presented for computing the cut, determining size, location, and number of openings, and marking the stand.
Download or read book Proceedings of the National Silviculture Workshop written by and published by . This book was released on 1989 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1975 with total page 1078 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Service Research Paper NE written by and published by . This book was released on 1979 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for the use of GYPCHEK to control the gypsy moth written by Franklin B. Lewis and published by . This book was released on 1979 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Raise cutting diameters for increased returns written by H. Clay Smith and published by . This book was released on 1979 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1978 National Camping Market Survey written by Wilbur F. LaPage and published by . This book was released on 1979 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report NE written by and published by . This book was released on 1980 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Service Research Accomplishments written by and published by . This book was released on 1975 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Accomplishments written by and published by . This book was released on 1976 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Service General Technical Report NE written by and published by . This book was released on 1980 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the Northeastern Forest Experiment Station 1966 1976 written by and published by . This book was released on 1980 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1975 with total page 2834 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1980 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USDA Forest Service General Technical Report NE written by and published by . This book was released on 1975 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uneven aged Silviculture and Management in the United States written by United States. Forest Service. Timber Management Research and published by . This book was released on 1978 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
