气候变化领域集成服务门户(CCPortal): Climate drivers and human impacts shape 35-year trends of coastal wetland health and composition in an urban region

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DOI	10.1002/ecs2.4832
	Climate drivers and human impacts shape 35-year trends of coastal wetland health and composition in an urban region
	Doughty, Cheryl L.; Gu, Hanfeng; Ambrose, Richard F.; Stein, Eric D.; Sloane, Evyan Borgnis; Martinez, Meghan; Cavanaugh, Kyle C.
发表日期	2024
ISSN	2150-8925
起始页码	15
结束页码	4
卷号	15 期号:4
英文摘要	The future of coastal wetlands will depend on the combined effects of climate change and human impacts from urbanization and coastal management. Disentangling the effects of these factors is difficult, but satellite imagery archives provide a way to track biological and physical changes in wetlands over recent decades to reveal how coastal wetlands have been changing in response to climate and human drivers. In this study, we used Landsat to monitor the conditions of 32 coastal wetlands in southern California from 1984 to 2019 and identify environmental and human drivers of these trends. Wetland conditions were characterized by vegetation greenness, using the normalized difference vegetation index (NDVI), and by habitat composition, derived from areal estimates of wetland and subtidal habitats. Overall, wetlands displayed three types of long-term response: greening and gaining wetland (10), greening and losing wetland (16), and browning and losing wetland (6). Regional environmental drivers with overall positive effects on wetland NDVI were sea level, wave height, and precipitation, whereas stream discharge, vapor pressure deficit, and air temperature had negative or nonlinear effects. Wetland area change was primarily correlated with sea level, but response was highly contextual among sites. Negative trends in wetland NDVI and area were more common in larger sites with low elevations and in sites with open inlets. Restoration had mixed effects, with only half of the restored sites showing positive changes in NDVI and wetland area post-restoration. The important work of managing and restoring urban coastal wetlands is complicated by variability and context and requires us to account for the influence of humans and climate as we build a regional understanding of historic, present, and future wetland health.
英文关键词	climate change; coastal wetland; Google Earth Engine; hierarchical generalized additive models; human impacts; Landsat; restoration monitoring; salt marsh; wetland restoration
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:001203419600001
来源期刊	ECOSPHERE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/290399
作者单位	University of California System; University of California Los Angeles; University of California System; University of California Los Angeles; Southern California Coastal Water Research Project; National Aeronautics & Space Administration (NASA); NASA Goddard Space Flight Center; Boston University
推荐引用方式 GB/T 7714	Doughty, Cheryl L.,Gu, Hanfeng,Ambrose, Richard F.,et al. Climate drivers and human impacts shape 35-year trends of coastal wetland health and composition in an urban region[J],2024,15(4).
APA	Doughty, Cheryl L..,Gu, Hanfeng.,Ambrose, Richard F..,Stein, Eric D..,Sloane, Evyan Borgnis.,...&Cavanaugh, Kyle C..(2024).Climate drivers and human impacts shape 35-year trends of coastal wetland health and composition in an urban region.ECOSPHERE,15(4).
MLA	Doughty, Cheryl L.,et al."Climate drivers and human impacts shape 35-year trends of coastal wetland health and composition in an urban region".ECOSPHERE 15.4(2024).