气候变化领域集成服务门户(CCPortal): Elevation Changes in Restored Marshes at Poplar Island, Chesapeake Bay, MD: I. Trends and Drivers of Spatial Variability

CCPortal

DOI	10.1007/s12237-023-01319-2
	Elevation Changes in Restored Marshes at Poplar Island, Chesapeake Bay, MD: I. Trends and Drivers of Spatial Variability
	Staver, Lorie W.; Morris, James T.; Cornwell, Jeffrey C.; Stevenson, J. Court; Nardin, William; Hensel, Philippe; Owens, Michael S.; Schwark, Amanda
发表日期	2024
ISSN	1559-2723
EISSN	1559-2731
英文摘要	Tidal marshes provide numerous ecosystem services, but are threatened by recent increases in global sea level rise (SLR). Marsh restoration and creation are important strategies for mitigating marsh loss, restoring ecosystem services, increasing coastal community resilience, and providing much needed habitat for threatened species. Dredged material resulting from navigation channel maintenance can provide a substrate for these restoration projects. Few studies, however, have addressed the sustainability of these marshes. The Paul S. Sarbanes Ecosystem Restoration Project at Poplar Island, where fine-grained, nutrient-rich dredged material from upper Chesapeake Bay is being used to create > 302 ha of tidal marshes, provides a case study. The low supply of inorganic sediment is counteracted by abundant nutrients, stimulating high rates of organic matter production and elevation change. Using > 10 years of data from 39 surface elevation tables, we found that the mean low marsh rate of elevation change (7.7 +/- 3.21 mm year(-1)) was double the mean high marsh rate (3.6 +/- 0.47 mm year(-1)) and exceeded the natural reference marsh (3.0 +/- 2.28 mm year(-1)) and relative SLR (5.7 mm year(-1)). By stimulating organic matter production, the high nutrient substrate appears to offset the low inorganic sediment inputs in mid-Chesapeake Bay. Spatial variability was correlated with initial elevation, but was also influenced by local factors that may affect sediment redistribution within the marshes.
英文关键词	Wetlands; Dredged material; Beneficial use; Nitrogen; Restoration; Climate change
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:001153084800001
来源期刊	ESTUARIES AND COASTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298657
作者单位	University System of Maryland; University of Maryland Center for Environmental Science; University of South Carolina System; University of South Carolina Columbia; National Oceanic Atmospheric Admin (NOAA) - USA; National Geodetic Survey, NOAA
推荐引用方式 GB/T 7714	Staver, Lorie W.,Morris, James T.,Cornwell, Jeffrey C.,et al. Elevation Changes in Restored Marshes at Poplar Island, Chesapeake Bay, MD: I. Trends and Drivers of Spatial Variability[J],2024.
APA	Staver, Lorie W..,Morris, James T..,Cornwell, Jeffrey C..,Stevenson, J. Court.,Nardin, William.,...&Schwark, Amanda.(2024).Elevation Changes in Restored Marshes at Poplar Island, Chesapeake Bay, MD: I. Trends and Drivers of Spatial Variability.ESTUARIES AND COASTS.
MLA	Staver, Lorie W.,et al."Elevation Changes in Restored Marshes at Poplar Island, Chesapeake Bay, MD: I. Trends and Drivers of Spatial Variability".ESTUARIES AND COASTS (2024).