气候变化领域集成服务门户(CCPortal): Aboveground carbon loss associated with the spread of ghost forests as sea levels rise

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DOI	10.1088/1748-9326/aba136
	Aboveground carbon loss associated with the spread of ghost forests as sea levels rise
	Smart L.S.; Taillie P.J.; Poulter B.; Vukomanovic J.; Singh K.K.; Swenson J.J.; Mitasova H.; Smith J.W.; Meentemeyer R.K.
发表日期	2020
ISSN	17489318
卷号	15 期号:10
英文摘要	Coastal forests sequester and store more carbon than their terrestrial counterparts but are at greater risk of conversion due to sea level rise. Saltwater intrusion from sea level rise converts freshwater-dependent coastal forests to more salt-tolerant marshes, leaving ‘ghost forests’ of standing dead trees behind. Although recent research has investigated the drivers and rates of coastal forest decline, the associated changes in carbon storage across large extents have not been quantified. We mapped ghost forest spread across coastal North Carolina, USA, using repeat Light Detection and Ranging (LiDAR) surveys, multi-temporal satellite imagery, and field measurements of aboveground biomass to quantify changes in aboveground carbon. Between 2001 and 2014, 15% (167 km2) of unmanaged public land in the region changed from coastal forest to transition-ghost forest characterized by salt-tolerant shrubs and herbaceous plants. Salinity and proximity to the estuarine shoreline were significant drivers of these changes. This conversion resulted in a net aboveground carbon decline of 0.13 ± 0.01 TgC. Because saltwater intrusion precedes inundation and influences vegetation condition in advance of mature tree mortality, we suggest that aboveground carbon declines can be used to detect the leading edge of sea level rise. Aboveground carbon declines along the shoreline were offset by inland aboveground carbon gains associated with natural succession and forestry activities like planting (2.46 ± 0.25 TgC net aboveground carbon across study area). Our study highlights the combined effects of saltwater intrusion and land use on aboveground carbon dynamics of temperate coastal forests in North America. By quantifying the effects of multiple interacting disturbances, our measurement and mapping methods should be applicable to other coastal landscapes experiencing saltwater intrusion. As sea level rise increases the landward extent of inundation and saltwater exposure, investigations at these large scales are requisite for effective resource allocation for climate adaptation. In this changing environment, human intervention, whether through land preservation, restoration, or reforestation, may be necessary to prevent aboveground carbon loss. © 2020 The Author(s). Published by IOP Publishing Ltd
英文关键词	Aboveground carbon; Ghost forests; LiDAR; Saltwater intrusion; Sea level rise
语种	英语
scopus关键词	Economics; Floods; Land use; Optical radar; Plants (botany); Reforestation; Salt water intrusion; Satellite imagery; Above ground biomass; Above-ground carbons; Changing environment; Estuarine shorelines; Light detection and ranging; North Carolina , USA; Standing dead trees; Vegetation condition; Sea level; aboveground biomass; carbon storage; Doppler lidar; lidar; mortality; reforestation; resource allocation; saline intrusion; sea level change; terrestrial ecosystem; North America; North Carolina; 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/153655
作者单位	Center for Geospatial Analytics, North Carolina State University, 2800 Faucette Drive, Raleigh, NC 27695, United States; Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL 32611, United States; Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Department of Parks, Recreation, and Tourism Management, North Carolina State University, 2800 Faucette Drive, Raleigh, NC 27695, United States; Institute for Global Research, AidData, College of William and Mary, 424 Scotland Street, Williamsburg, VA 23185, United States; Center for Geospatial Analysis, College of William and Mary, 400 Landrum Drive, Williamsburg, VA 23185, United States; Nicholas School of the Environment, Duke University, 9 Circuit Drive, Durham, NC 27710, United States; Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, 2800 Faucette Drive, Raleigh, NC 27695, United States; Department of Environment and Society, Ut...
推荐引用方式 GB/T 7714	Smart L.S.,Taillie P.J.,Poulter B.,et al. Aboveground carbon loss associated with the spread of ghost forests as sea levels rise[J],2020,15(10).
APA	Smart L.S..,Taillie P.J..,Poulter B..,Vukomanovic J..,Singh K.K..,...&Meentemeyer R.K..(2020).Aboveground carbon loss associated with the spread of ghost forests as sea levels rise.Environmental Research Letters,15(10).
MLA	Smart L.S.,et al."Aboveground carbon loss associated with the spread of ghost forests as sea levels rise".Environmental Research Letters 15.10(2020).