气候变化领域集成服务门户(CCPortal): Impacts of organic matter removal and vegetation control on nutrition and growth of Douglas-fir at three Pacific Northwestern Long-Term Soil Productivity sites

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DOI	10.1016/j.foreco.2020.118176
	Impacts of organic matter removal and vegetation control on nutrition and growth of Douglas-fir at three Pacific Northwestern Long-Term Soil Productivity sites
	Littke K.M.; Harrington T.B.; Slesak R.A.; Holub S.M.; Hatten J.A.; Gallo A.C.; Littke W.R.; Harrison R.B.; Turnblom E.C.
发表日期	2020
ISSN	0378-1127
卷号	468
英文摘要	As intensive management of forest plantations and interest in harvesting biomass for energy continue to increase, there is a need to investigate the longer-term effects of harvest-related disturbances and intensive treatments on soil and site productivity. This research focused on three Pacific Northwestern Douglas-fir soil productivity studies around 15 years since harvest that spanned a range in soil nutrients: high soil N and low base cations (Fall River), low soil N and base cations (Matlock), and high soil N and base cations (Molalla). The studies, which had similar organic matter and vegetation control treatments, were compared for differences in belowground and aboveground nutrients as well as differences in periodic stand volume growth. Five years of annual vegetation control (AVC) resulted in the greatest losses of belowground N and base cations compared to one year of vegetation control (IVC) at planting, but also resulted in significantly greater stand volume growth at Fall River and Matlock. Whole tree removal (WT) resulted in lower soil NO3− at Fall River but greater soil NO3− at Matlock due to greater colonization by N-fixing Scotch broom. There was also a decrease in soil exchangeable K due to WT and WT plus coarse woody debris removal (WT + ) at Fall River, which had the lowest initial soil exchangeable K. There was either no effect (Matlock and Molalla) (0–15 years) or a decrease (Fall River) (0–5 years) in stand volume growth due to WT removal. At Fall River, WT, WT+, and AVC treatments had no detectable effect on volume growth from 10 to 15 years. Overall, longer-term effects of organic matter removals and vegetation control on soil and site productivity were variable at each site due to pre-treatment soil nutrition and competition from understory vegetation. © 2020 Elsevier B.V.
英文关键词	Douglas-fir; Organic matter removal; Pacific Northwest; Soil nutrition; Stand volume growth; Tree nutrition; Vegetation control
语种	英语
scopus关键词	Biogeochemistry; Harvesting; Nutrients; Nutrition; Organic compounds; Positive ions; Productivity; Rivers; Vegetation; Coarse woody debris; Forest plantation; Intensive management; Long term soil productivity; Organic matter removal; Site productivity; Understory vegetation; Vegetation control; Soils; aboveground biomass; belowground biomass; coarse woody debris; colonization; forest management; forest soil; forestry production; harvesting; ion exchange; organic matter; plantation forestry; soil nutrient; Cations; Harvesting; Nutrients; Nutrition; Organic Compounds; Productivity; Fall River [Massachusetts]; Massachusetts; United States; Cytisus scoparius; Pseudotsuga; Pseudotsuga menziesii
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/155244
作者单位	Stand Management Cooperative School of Forest and Environmental Sciences, University of Washington, Box 352100, Seattle, WA 98195, United States; USDA Forest Service PNW Research Station OlympiaWA, United States; Department of Forest Resources, University of Minnesota, St. Paul, MN, United States; Weyerhaeuser Company SpringfieldOR, United States; Forest Engineering, Resources & Management, Oregon State University CorvallisOR, United States
推荐引用方式 GB/T 7714	Littke K.M.,Harrington T.B.,Slesak R.A.,et al. Impacts of organic matter removal and vegetation control on nutrition and growth of Douglas-fir at three Pacific Northwestern Long-Term Soil Productivity sites[J],2020,468.
APA	Littke K.M..,Harrington T.B..,Slesak R.A..,Holub S.M..,Hatten J.A..,...&Turnblom E.C..(2020).Impacts of organic matter removal and vegetation control on nutrition and growth of Douglas-fir at three Pacific Northwestern Long-Term Soil Productivity sites.Forest Ecology and Management,468.
MLA	Littke K.M.,et al."Impacts of organic matter removal and vegetation control on nutrition and growth of Douglas-fir at three Pacific Northwestern Long-Term Soil Productivity sites".Forest Ecology and Management 468(2020).