气候变化领域集成服务门户(CCPortal): Stand density and carbon storage in cypress-tupelo wetland forests of the Mississippi River delta

CCPortal

DOI	10.1016/j.foreco.2019.03.046
	Stand density and carbon storage in cypress-tupelo wetland forests of the Mississippi River delta
	Edwards B.L.; Allen S.T.; Braud D.H.; Keim R.F.
发表日期	2019
ISSN	0378-1127
起始页码	106
结束页码	114
卷号	441
英文摘要	Forested wetlands play a vital role in the coastal zone, but their vulnerability to coastal change—and the impact to high-value ecosystem services—is not as well established as that of more seaward systems such as saltmarsh and mangroves. To address this need, we develop field-based stand density classes, then classify baldcypress-water tupelo (Taxodium distichum (L.) Rich var. distichum; Nyssa aquatica L.) stand density on the Mississippi River delta using a multitemporal ordination of reflectance from Landsat Thematic Mapper imagery. Approximately 29, 50, and 21% of forest was classified as full canopy, intermediate, and open canopy, respectively. We estimate stand-level live-stem carbon stocks and annual accumulation rates of 96, 67, and 39 t-C ha −1 and 1.9, 1.4 and 0.8 t-C ha −1 yr −1 for full-canopy, intermediate, and open-canopy forest, respectively. Regional live-stem carbon stocks are ∼ 69 t-C ha-1, and total carbon and annual increment for all forest analyzed are ∼17 Mt-C and ∼0.34 Mt-C yr-1. Much of the cypress-tupelo forest on the delta stores carbon at rates significantly below the potential of fully stocked stands, yet overall rates of accumulation are comparable to other forest types and coastal systems. Delta-wide, there is a well-defined coastward gradient of stand density, which has important implications for the future of deltaic forests and their ecosystem services. The similarities between forest density gradients and well-documented marsh loss patterns in the region suggest that the same processes driving coastal marsh loss—relative sea level rise exacerbated by human activity—are likely responsible for a second, more gradual interface of land loss at the marsh-forest boundary. Results highlight the potential response of coastal forests to continued environmental change—and associated impacts to the carbon cycle—and provide a baseline for detecting future change to forests on the Mississippi River delta. © 2019
英文关键词	Baldcypress; Carbon cycle; Coastal change; Forested wetlands; Mississippi River delta; Water tupelo
语种	英语
scopus关键词	Ecosystems; Rivers; Sea level; Wetlands; Baldcypress; Carbon cycles; Coastal change; Forested wetlands; Mississippi river; Forestry; carbon sequestration; coastal zone; coniferous tree; dicotyledon; ecosystem service; environmental change; forest ecosystem; human activity; Landsat thematic mapper; mangrove; saltmarsh; stand structure; wetland; Carbon; Ecosystems; Forestry; Forests; Nyssa; Rivers; Stand Density; Wetlands; Mississippi; Mississippi River; Tupelo; United States; Cupressus; Nyssa aquatica; Rhizophoraceae; Taxodium distichum
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/156047
作者单位	USDA-ARS-Jornada Experimental Range, P.O. Box 30003, MSC 3JER, NMSU, Las Cruces, NM 88003, United States; Dept. of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland; Coastal Studies Institute, Louisiana State University, Baton Rouge, LA 70803, United States; School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, United States
推荐引用方式 GB/T 7714	Edwards B.L.,Allen S.T.,Braud D.H.,et al. Stand density and carbon storage in cypress-tupelo wetland forests of the Mississippi River delta[J],2019,441.
APA	Edwards B.L.,Allen S.T.,Braud D.H.,&Keim R.F..(2019).Stand density and carbon storage in cypress-tupelo wetland forests of the Mississippi River delta.Forest Ecology and Management,441.
MLA	Edwards B.L.,et al."Stand density and carbon storage in cypress-tupelo wetland forests of the Mississippi River delta".Forest Ecology and Management 441(2019).