An integrative salt marsh conceptual framework for global comparisons DOI Creative Commons
Erik S. Yando, Scott F. Jones, W. Ryan James

et al.

Limnology and Oceanography Letters, Journal Year: 2023, Volume and Issue: 8(6), P. 830 - 849

Published: July 15, 2023

Abstract Salt marshes occur globally across climatic and coastal settings, providing key linkages between terrestrial marine ecosystems. However, salt marsh science lacks a unifying conceptual framework; consequently, historically well‐studied locations have been used as normative benchmarks. To allow for more effective comparisons the diversity of marshes, we developed an integrative framework. We review ecosystem‐relevant drivers from global to local spatial scales, integrate these multi‐scale settings into framework, provide guidance on applying framework using specific variables 11 examples. Overall, this allows appropriate comparison study sites by accounting global, coastal, inter‐, intra‐system unique each marsh. anticipate that incorporating will mechanism critically evaluate research questions foundation quantitative studies deepen our understanding function scales.

Language: Английский

Rebound in China’s coastal wetlands following conservation and restoration DOI
Xinxin Wang, Xiangming Xiao, Xiao Xu

et al.

Nature Sustainability, Journal Year: 2021, Volume and Issue: 4(12), P. 1076 - 1083

Published: Oct. 28, 2021

Language: Английский

Citations

202
Surface Water and Groundwater Interactions in Salt Marshes and Their Impact on Plant Ecology and Coastal Biogeochemistry DOI Creative Commons
Pei Xin, Alicia M. Wilson, Chengji Shen

et al.

Reviews of Geophysics, Journal Year: 2022, Volume and Issue: 60(1)

Published: Feb. 2, 2022

Abstract Salt marshes are highly productive intertidal wetlands providing important ecological services for maintaining coastal biodiversity, buffering against oceanic storms, and acting as efficient carbon sinks. However, about half of these have been lost globally due to human activities climate change. Inundated periodically by tidal water, salt subjected strong surface water groundwater interactions, which affect marsh plant growth biogeochemical exchange with water. This paper reviews the state knowledge current approaches quantifying interactions a focus on porewater flow associated soil conditions in connection zonation well carbon, nutrients, greenhouse gas fluxes. Porewater solute transport primarily driven tides moderate regulation rainfall, evapotranspiration sea level rise. Tidal fluctuations play key role through alteration aeration transport, drive export significant fluxes nutrients Despite recent progress, major gaps remain. Previous studies focused flows creek‐perpendicular sections overlooked multi‐scale 3D behaviors. Understanding ecological‐hydrological links under combined influences different forcing factors boundary disturbances is lacking. Variations temperatures flow, exchanges, but extent underlying mechanisms remain unknown. We need fill advance understanding thus enhance our ability protect restore them.

Language: Английский

Citations

141
Coastal blue carbon in China as a nature-based solution toward carbon neutrality DOI Creative Commons
Faming Wang, Jihua Liu, Guoming Qin

et al.

The Innovation, Journal Year: 2023, Volume and Issue: 4(5), P. 100481 - 100481

Published: July 21, 2023

To achieve the Paris Agreement, China pledged to become "Carbon Neutral" by 2060s. In addition massive decarbonization, this would require significant changes in ecosystems toward negative CO

Language: Английский

Citations

48
Toward a better understanding of coastal salt marsh mapping: A case from China using dual-temporal images DOI
Chuanpeng Zhao,

Mingming Jia,

Zongming Wang

et al.

Remote Sensing of Environment, Journal Year: 2023, Volume and Issue: 295, P. 113664 - 113664

Published: June 15, 2023

Language: Английский

Citations

44
Satellite derived coastal reclamation expansion in China since the 21st century DOI Creative Commons
Jiang Shuai, Nan Xu, Zhichao Li

et al.

Global Ecology and Conservation, Journal Year: 2021, Volume and Issue: 30, P. e01797 - e01797

Published: Sept. 6, 2021

Since 2000, many coastal land reclamation projects have been implemented in China to alleviate the shortage of resources with rapid urban sprawl and economic growth. As a result, both length proportion artificial shoreline increased significantly. Meanwhile, inevitably brings some negative environmental ecological issues, such as biodiversity loss, water pollution, wetland degradation. In this study, based on GlobeLand30 product OpenStreetMap coastline data, we tracked expansion 21st century. Specifically, analyzed intensity types all provinces China, explored relationship between GDP growth understand status areas during 2000–2020. Our results showed that total area reclaimed along coast was 5135.31 km2, which aquaculture were two main land-use/land-cover (LULC) types, accounting for 71.89% area. Among provinces, Tianjin exhibited greatest (i.e., 7.16 km2 km−1) Zhejiang Province had largest 1304.65 km2). We also found positive correlation development reclamation. addition, progress activities has greatly slowed down owing national policies released recent years.

Language: Английский

Citations

63
Invasion of Spartina alterniflora in the coastal zone of mainland China: Control achievements from 2015 to 2020 towards the Sustainable Development Goals DOI
Huiying Li, Dehua Mao, Zongming Wang

et al.

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 323, P. 116242 - 116242

Published: Sept. 21, 2022

Language: Английский

Citations

63
Spatiotemporal Mapping of Salt Marshes in the Intertidal Zone of China during 1985–2019 DOI Creative Commons
Guangwei Chen, Runjie Jin, Zhanjiang Ye

et al.

Journal of Remote Sensing, Journal Year: 2022, Volume and Issue: 2022

Published: Jan. 1, 2022

This study mapped the areal extent, identified species composition, and analyzed changes of salt marshes in intertidal zone China during period 1985–2019. With aid cloud platform Google Earth Engine, we selected Landsat 5/8 Sentinel-2 images used support vector machine classification method to extract marsh information for years 1985, 1990, 1995, 2000, 2005, 2010, 2015, 2019. Seven major marshes: Phragmites australis , Suaeda spp., Spartina alterniflora Scirpus mariqueter Tamarix chinensis Cyperus malaccensis Sesuvium portulacastrum were identified. Our results showed that are mainly distributed Liaoning, Shandong, Jiangsu, Shanghai, Zhejiang, with varying patterns shrinking, expansion, or wavering different places. The distribution has declined considerably from 151,324 ha 1985 115,397 2019, a drop 23.7%. During same period, area native dropped 95.4% 77,741 3,563 spp. 45.1% 60,511 33,193 P. ; on contrary, exotic species, S. exhibited sharp rise just 99 67,527 ha. For past 35 years, driving factors causing land reclamation, variations water sand fluxes, interspecific competition succession vegetation. These provide fundamental reference could form scientific basis formulating policies conservation utilization resources China.

Language: Английский

Citations

45
Continual expansion of Spartina alterniflora in the temperate and subtropical coastal zones of China during 1985–2020 DOI Creative Commons

Xi Zhang,

Xiangming Xiao, Xinxin Wang

et al.

International Journal of Applied Earth Observation and Geoinformation, Journal Year: 2023, Volume and Issue: 117, P. 103192 - 103192

Published: Jan. 19, 2023

Biological invasions are considerably altering ecosystem structure and functions, especially in coastal ecosystems that subject to intensive anthropogenic disturbances. Spartina alterniflora has been recognized as the most serious invasive species China, which received considerable attention from government public. There is urgent need control this at regional national scales, but such efforts were impeded by lack of time-series data spread. Here, we assessed pixel- phenology-based algorithm for mapping saltmarshes, applied generate annual saltmarsh maps (30-m spatial resolution) 1985 2020 using time series Landsat 5/7/8 images. The resulting suggest expanding since 1990 with three noticeable phases (rapid, moderate, rapid). Along latitudinal gradient, exhibited a longer invasion history more frequent changes low latitudes. Although human interventions caused decline certain areas, rapid natural spread was primarily responsible its extensive continual invasion. These results provide insights efficiently managing species, enhancing conservation wetlands, promoting sustainability wetlands.

Language: Английский

Citations

29
Synthetic Aperture Radar (SAR) for Ocean: A Review DOI Creative Commons
Reza Mohammadi Asiyabi, Arsalan Ghorbanian, Shaahin Nazarpour Tameh

et al.

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Journal Year: 2023, Volume and Issue: 16, P. 9106 - 9138

Published: Jan. 1, 2023

Oceans cover approximately 71% of the Earth's surface and provide numerous services to environment humans. Precise, real-time, large-scale monitoring oceanographic parameters is essential for ocean conservation understanding interactions between oceans atmosphere. In this regard, Synthetic Aperture Radar (SAR) systems, with unique capabilities (e.g., day-night almost all-weather data acquisition), valuable datasets studies. Many studies have exploited applications SAR imagery proposed methods study parameters. study, a brief introduction interaction microwave signals are initially provided. Then, important spaceborne airborne systems summarized. Subsequently, 12 different in comprehensively discussed, advantages disadvantages extensively explored. Finally, research trend on provided by analyzing all relevant papers published 1973 end December 2022, existing challenges discussed future

Language: Английский

Citations

24
The distribution of global tidal marshes from Earth observation data DOI Creative Commons
Thomas A. Worthington, Mark Spalding, Emily Landis

et al.

Global Ecology and Biogeography, Journal Year: 2024, Volume and Issue: 33(8)

Published: May 9, 2024

Abstract Aim Tidal marsh ecosystems are heavily impacted by human activities, highlighting a pressing need to address gaps in our knowledge of their distribution. To better understand the global distribution and changes tidal extent, identify opportunities for conservation restoration, it is critical develop spatial base occurrence. Here, we globally consistent map year 2020 at 10‐m resolution. Location Global. Time period 2020. Major taxa studied marshes. Methods location world's marshes resolution, applied random forest classification model Earth observation data from We trained with reference dataset developed support mapping coastal ecosystems, predicted between 60° N S. validated using standard accuracy assessment methods, final having an overall score 0.85. Results estimate extent be 52,880 km 2 (95% CI: 32,030 59,780 ) distributed across 120 countries territories. centred temperate Arctic regions, nearly half occurring Northern Atlantic (45%) region. At national scale, over third (18,510 ; 11,200–20,900) occurs within USA. Main conclusions Our analysis provides most detailed on date shows that occur more greater proportion coastline than previous studies. fills major gap regarding baseline needed measuring estimating value terms ecosystem services.

Language: Английский

Citations

15