气候变化领域集成服务门户(CCPortal): Climate and anthropogenic controls on blue carbon sequestration in Hudson River tidal marsh, Piermont, New York

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DOI	10.1088/1748-9326/ab7a56
	Climate and anthropogenic controls on blue carbon sequestration in Hudson River tidal marsh, Piermont, New York
	Peteet D.; Nichols J.; Pederson D.; Kenna T.; Chang C.; Newton B.; Vincent S.
发表日期	2020
ISSN	17489318
卷号	15 期号:6
英文摘要	Tidal marshes globally are experiencing erosion with sea level rise. In order to adaptively plan for essential marsh preservation, we recognize the importance of the investigation of marsh archives for the perspective they provide toward resilience. Our objective in this study is to examine the relationship of tidal marsh carbon sequestration with both climate change and human impact throughout past centuries and millennia. A Hudson River marsh sediment core spanning the last 2000 years is analyzed for bulk loss on ignition (LOI), bulk density, sedimentation rate, carbon (C) and mineral flux, and X-ray fluorescence (XRF) analysis including lead, copper, titanium and potassium. We compare this record to previously established pollen and spore stratigraphy from the same site, along with an extensive macrofossil based AMS 14C chronology based upon both cores. Carbon accumulation generally follows sediment accumulation rates, which were higher than 200 g C m-2 yr-1 prior to 1500 years ago. Declines in carbon storage rate during the Medieval Warm Period (MWP) are linked to drought, fire, and charcoal, while lesser declines during the Little Ice Age (LIA) are linked to cooling and a shorter growing season. Subsequent human impact with marsh haying practices also led to carbon accumulation rate decline to 100 g C m-2 yr-1. Increases in C sequestration rates in recent decades may be attributable to nitrogen pollution of the estuary, invasive plants, and/or increased flooding, but the lack of mineral sediment threatens their stability. Ecosystem function is declining with the loss of foundational species, and the crisis is deepening for preservation of this habitat. We strongly recommend strategies for minimizing marsh loss. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	blue carbon; climate; Hudson River; marshes; Medieval Warm Period; sequestration
语种	英语
scopus关键词	Charcoal; Climate change; Forestry; Plants (botany); River pollution; Sea level; Sediments; Stratigraphy; Carbon accumulation; Carbon sequestration; Ecosystem functions; Medieval Warm Period; Nitrogen pollution; Sediment accumulation; Sedimentation rates; X ray fluorescence analysis; Wetlands; accumulation rate; anthropogenic effect; carbon sequestration; climate change; climate effect; cooling; ecosystem function; growing season; invasive species; lead; Little Ice Age; Medieval Warm Period; potassium; saltmarsh; sea level change; sediment core; sedimentation; titanium; Hudson Estuary; United States
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153993
作者单位	NASA, Goddard Institute for Space Studies, New York, NY, United States; Lamont Doherty Earth Observatory, Columbia UniversityNY, United States; United States Department of Agriculture, Athens, GA, United States
推荐引用方式 GB/T 7714	Peteet D.,Nichols J.,Pederson D.,et al. Climate and anthropogenic controls on blue carbon sequestration in Hudson River tidal marsh, Piermont, New York[J],2020,15(6).
APA	Peteet D..,Nichols J..,Pederson D..,Kenna T..,Chang C..,...&Vincent S..(2020).Climate and anthropogenic controls on blue carbon sequestration in Hudson River tidal marsh, Piermont, New York.Environmental Research Letters,15(6).
MLA	Peteet D.,et al."Climate and anthropogenic controls on blue carbon sequestration in Hudson River tidal marsh, Piermont, New York".Environmental Research Letters 15.6(2020).