气候变化领域集成服务门户(CCPortal): Mounds facilitate regeneration of light-seeded and browse-sensitive tree species after moderate-severity wind disturbance

CCPortal

DOI	10.1016/j.foreco.2018.12.040
	Mounds facilitate regeneration of light-seeded and browse-sensitive tree species after moderate-severity wind disturbance
	Kern C.C.; Schwarzmann J.; Kabrick J.; Gerndt K.; Boyden S.; Stanovick J.S.
发表日期	2019
ISSN	0378-1127
起始页码	139
结束页码	147
卷号	437
英文摘要	Using natural disturbance as a guide to management is an approach to develop resilience, maintain or restore natural processes, and sustain ecosystem goods and service. Here, we compare features of mounds resulting from tree uprooting, tree structure and composition, and browsing in recent 10–12-year-old moderate-severity wind disturbance events and reference stands in old hemlock– (Tsuga canadensis–) hardwood forests in Wisconsin, USA. Compared to reference stands, recent, partial blowdown stands had reduced overstory tree density and canopy heights, and more large gaps, coarse woody debris, exposed mineral soil, and newly-created mounds. Regeneration of light-seeded species was greater in blowdown stands relative to reference stands. We found an association between old mounds and overstory eastern hemlock and yellow birch, indicating mounds provide a long-term competitive advantage for these light-seeded species relative to pits and undisturbed areas. Notably, we found that the distance to the canopy was shortened by 30% for trees regenerating on young mounds in blowdown stands. In addition, light-seeded species, such as yellow birch, grew above browse height (2 m) in 10+ years on young mounds. In contrast, on flat and pit microsites, saplings were short (<2 m) and more likely browsed. Maintaining and/or protecting naturally created mounds may facilitate regeneration of light-seeded, browse-sensitive species in mixedwood forests that evolved under infrequent, moderate-severity wind storms. Therefore, reserving a subset of uprooted trees from salvage operations could provide suitable substrate for germination and long-term development advantages, especially for light-seeded and browse-sensitive species and stands managed for high conservation values. © 2018
英文关键词	Browse refugia; Canopy gaps; Ecological forestry; Microtopography; Natural disturbance; Northern hardwoods; Tip-up mounds; Tree-throw; Uprooted trees
语种	英语
scopus关键词	Competition; Conservation; Ecology; Hardwoods; Browse refugia; Canopy gaps; Micro topography; Natural disturbance; Northern hardwoods; Tip-up mounds; Tree-throw; Uprooted trees; Reforestation; browsing; canopy architecture; deciduous tree; environmental disturbance; microtopography; mud mound; overstory; plantation forestry; refugium; regeneration; stand structure; storm surge; wind forcing; wood quality; Competition; Conservation; Ecology; Hardwoods; Light; Reforestation; Trees; Wind; Betula alleghaniensis; Tsuga; Tsuga canadensis
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/156152
作者单位	USDA Forest Service, Northern Research Station, 5985 Highway K, Rhinelander, WI 54501, United States; State of Wisconsin Board of Commissioners of Public Lands, 7271 Main St., Lake Tomahawk, WI 54539, United States; USDA Forest Service, Northern Research Station, 202 Natural Resources Building, Columbia, MO 65211, United States; Department of Biology and Geosciences, 909 E. Wood St., Clarion University, Clarion, PA 16214, United States; USDA Forest Service, Northern Research Station, 1549 Long Pond Road, Long PondPA 18334, United States
推荐引用方式 GB/T 7714	Kern C.C.,Schwarzmann J.,Kabrick J.,et al. Mounds facilitate regeneration of light-seeded and browse-sensitive tree species after moderate-severity wind disturbance[J],2019,437.
APA	Kern C.C.,Schwarzmann J.,Kabrick J.,Gerndt K.,Boyden S.,&Stanovick J.S..(2019).Mounds facilitate regeneration of light-seeded and browse-sensitive tree species after moderate-severity wind disturbance.Forest Ecology and Management,437.
MLA	Kern C.C.,et al."Mounds facilitate regeneration of light-seeded and browse-sensitive tree species after moderate-severity wind disturbance".Forest Ecology and Management 437(2019).