Download or read book Growth Response of Managed Uneven aged Northern Conifer Stands written by Dale S. Solomon and published by . This book was released on 1983 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth Response of Managed Uneven aged Northern Conifer Stands written by Dale S. Solomon and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Regeneration Responses to Management for Old Growth Characteristics in Northern Hardwood Conifer Forests written by Aviva Joy Gottesman and published by . This book was released on 2017 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silviculture practices interact with multiple sources of variability to influence regeneration trends in northern hardwood forests. There is uncertainty whether low-intensity selection harvesting techniques will result in desirable tree regeneration. Our research is part of a long-term study that tests the hypothesis that a silvicultural approach called “structural complexity enhancement” (SCE) can promote accelerated development of late-successional forest structure and functions. Our objective is to understand the regeneration dynamics following three uneven-aged forestry treatments modified to increase postharvest structural retention: single-tree selection, group selection, and SCE. In terms of regeneration densities and composition, how do light availability, competition, seedbad, and herbivory interact with overstory treatment effects? To explore these relationships, manipulations and controls were replicated across 2-hectare treatment units at two sites in Vermont, USA. Forest inventory data were collected pre-harvest and 13 years post-harvest. We used linear mixed effects models with repeated measures to evaluate the effects of treatment on seedling and sapling abundances and diversity (Shannon-Weiner H’). Multivariate analyses evaluated the relative predictive strength of treatment versus alternative sources of ecological variability. Thirteen-years post-harvest, the harvested treatments were all successful in recruiting a sapling class with a significantly higher mean than the control. However, in all of the treatments prolific beech regeneration dominated the understory in patches. Seedling densities exhibited pulses of recruitment and mortality with a significant positive treatment effect on all harvested treatments in the first four years post-harvest. Seedling diversity was maintained, while sapling diversity was negatively influenced by herbivory (deer and moose browse) and leaf litter substrate. Multivariate analyses suggest that while treatment had a dominant effect, other factors were strongly influential in driving regeneration responses. Results indicate variants of uneven-aged systems that retain or enhance stand structural complexity, including old-growth characteristics, generally regenerate at adequate and desirable densities depending on site conditions.

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper NE written by and published by . This book was released on 1986 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings U S Department of Agriculture Interagency Research Forum on Gypsy Moth and Other Invasive Species 1999 written by Sandra L. C. Fosbroke and published by . This book was released on 1999 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by Katherine A. McManus and published by . This book was released on 2000 with total page 248 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 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Management written by Lawrence S. Davis and published by McGraw-Hill Science, Engineering & Mathematics. This book was released on 1987 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book FIBER 3 0 written by Dale S. Solomon and published by . This book was released on 1995 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1983 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings Symposium On Sustainable Management Of Hemlock Ecosystems in Eastern North America June 22 24 1999 Durham New General T written by and published by . This book was released on 1980 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report NC written by and published by . This book was released on 1981 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Silvics of North America Conifers written by Russell M. Burns and published by . This book was released on 1990 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Silvics of North America written by and published by . This book was released on 1990 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Silvics of North America written by Russell M. Burns and published by . This book was released on 1990 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Periodic Annual Diameter Increment After Overstory Removal in Mixed Conifer Stands written by Fabian C. C. Uzoh and published by . This book was released on 1998 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: