气候变化领域集成服务门户(CCPortal): Northern mixedwood composition and productivity 50 years after whole-tree and stem-only harvesting with and without post-harvest prescribed burning

CCPortal

DOI	10.1016/j.foreco.2019.03.032
	Northern mixedwood composition and productivity 50 years after whole-tree and stem-only harvesting with and without post-harvest prescribed burning
	Muñoz Delgado B.L.; Kenefic L.S.; Weiskittel A.R.; Fernandez I.J.; Benjamin J.G.; Dibble A.C.
发表日期	2019
ISSN	0378-1127
起始页码	155
结束页码	166
卷号	441
英文摘要	Whole-tree harvesting (WTH) is increasingly used to extract forest biomass for energy and commercial wood products. Slash burning, which is used for fuels reduction and site preparation, also reduces aboveground biomass. Yet effects of incremental biomass reduction, from either WTH or slash burning, on long-term forest productivity and composition are poorly understood. This research uses data from a 50-year-old study in northern mixedwood (Picea – Abies – hardwood) stands on the Penobscot Experimental Forest in Maine, U.S.A., to address these concerns. Clearcutting was conducted in 1964–65 with WTH, stem-only harvesting (SOH), and SOH with post-harvest prescribed burning of logging residues (SOHB). Growing stock, composition, and soil properties (O horizon thickness and soil drainage) were measured 50 years after treatment. Hardwood composition (percent of total basal area) increased from pre-treatment levels in all treatments but was greater in SOHB than SOH and WTH. Eastern white pine (Pinus strobus), though a minor species, was significantly more abundant in WTH than SOH or SOHB. Results indicated no other significant differences in species composition, or in stand structure or productivity (total basal area, stem density, dominant height, quadratic mean diameter, and total above-ground carbon stock) among treatments. Independent of treatment, we observed relationships between soil properties and stem density and quadratic mean diameter (qmd), such that lower stem density and greater qmd were observed on sites with greater O horizon thickness. These findings suggest that relative to SOH, WTH and SOHB do not degrade northern mixedwood stand productivity as expressed by stand structure and stocking 50 years after a single treatment, even on a site with low to moderate production potential. Nevertheless, species shifts associated with clearcutting (i.e., shade-tolerant conifer to intolerant hardwood composition) and prescribed burning in this forest type should be considered in light of the potential application of either for intensive silviculture treatments. © 2019
英文关键词	Aboveground stand productivity; Carbon stock; Long-term studies; Prescribed burning; Stem-only harvesting; Whole-tree harvesting
语种	英语
scopus关键词	Biomass; Hardwoods; Harvesting; Productivity; Soils; Structure (composition); Carbon stocks; Long term study; Prescribed burning; Stand productivities; Whole tree harvesting; Forestry; aboveground biomass; clearcutting; community composition; coniferous tree; mixed forest; prescribed burning; silviculture; stand structure; stem; timber harvesting; woodland; Biomass; Forestry; Hardwoods; Harvesting; Prescribed Burning; Productivity; Maine; Penobscot Experimental Forest; United States; Abies; Coniferophyta; Picea; Pinus strobus
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156042
作者单位	USDA Forest Service, Northern Research Station, 54 Government Road, Bradley, ME 04411, United States; School of Forest Resources, University of Maine, 5755 Nutting Hall, Orono, ME 04469, United States; School of Biology and Ecology, University of Maine, Murray Hall, Orono, ME 5751, 04469, United States
推荐引用方式 GB/T 7714	Muñoz Delgado B.L.,Kenefic L.S.,Weiskittel A.R.,等. Northern mixedwood composition and productivity 50 years after whole-tree and stem-only harvesting with and without post-harvest prescribed burning[J],2019,441.
APA	Muñoz Delgado B.L.,Kenefic L.S.,Weiskittel A.R.,Fernandez I.J.,Benjamin J.G.,&Dibble A.C..(2019).Northern mixedwood composition and productivity 50 years after whole-tree and stem-only harvesting with and without post-harvest prescribed burning.Forest Ecology and Management,441.
MLA	Muñoz Delgado B.L.,et al."Northern mixedwood composition and productivity 50 years after whole-tree and stem-only harvesting with and without post-harvest prescribed burning".Forest Ecology and Management 441(2019).