气候变化领域集成服务门户(CCPortal): Assessing long-term effectiveness of green-tree retention

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DOI	10.1016/j.foreco.2019.06.034
	Assessing long-term effectiveness of green-tree retention
	Rosenvald R.; Lõhmus P.; Rannap R.; Remm L.; Rosenvald K.; Runnel K.; Lõhmus A.
发表日期	2019
ISSN	0378-1127
起始页码	543
结束页码	548
卷号	448
英文摘要	Retention forestry is a silvicultural approach that can achieve both ecological and economic objectives in various forest ecosystems. It builds largely on the assumption that the live trees left unharvested (the main timber cost) effectively support ecological functioning of post-harvest forest. Such effectiveness can be understood as a combination of the initial ecological value of the tree (that may persist after tree death) and its survival, i.e., the prospect to develop into a high-quality veteran tree in the next forest generation. We assessed those aspects among >3000 live trees actually retained in 103 Estonian harvested sites and monitored over 16 years. We analysed how their survival and habitat value (estimated from tree morphology, confirmed by epiphyte surveys) translate to the veteran-tree perspectives. Only 48% of the trees were still alive after 16 years, and this final survival at the stand-scale was poorly predictable from a few years of monitoring. Only 12% retention trees had both high habitat value and high survival. Most trees (75%) were of low initial habitat value and, combined with low survival, almost 40% of all trees never provided quality habitat for tree-dwelling species. Nevertheless, we found considerable potential for post-harvest development of habitat value; notably in European nemoral hardwood species (such as Fraxinus, Quercus, Ulmus, Acer), which survived well but were usually in subcanopies at the time of the harvest. These findings indicate that retention forestry can improve also highly impoverished (e.g. short-rotation) forests, if analytical tools have been developed and applied to predict tree survival and future habitat quality. © 2019 Elsevier B.V.
英文关键词	Cost-effectiveness; Epiphyte; Long-term monitoring; Microhabitat; Tree mortality; Variable retention
语种	英语
scopus关键词	Cost effectiveness; Ecosystems; Hardwoods; Harvesting; Timber; Epiphyte; Long term monitoring; Microhabitats; Tree mortality; Variable retentions; Forestry; assessment method; epiphyte; forest ecosystem; habitat quality; microhabitat; mortality; silviculture; survival; tree; wood; Cost Effectiveness; Ecosystems; Forestry; Hardwoods; Harvesting; Retention; Survival; Trees; Estonia; Acer; Fraxinus; Quercus; Ulmus
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/155855
作者单位	Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, Kreutzwaldi 5, Tartu, EE-51006, Estonia; Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, Tartu, EE-51014, Estonia
推荐引用方式 GB/T 7714	Rosenvald R.,Lõhmus P.,Rannap R.,et al. Assessing long-term effectiveness of green-tree retention[J],2019,448.
APA	Rosenvald R..,Lõhmus P..,Rannap R..,Remm L..,Rosenvald K..,...&Lõhmus A..(2019).Assessing long-term effectiveness of green-tree retention.Forest Ecology and Management,448.
MLA	Rosenvald R.,et al."Assessing long-term effectiveness of green-tree retention".Forest Ecology and Management 448(2019).