The roles of vegetation, tide and sediment in the variability of carbon in the salt marsh dominated tidal creeks

Tan, Li Shan; Ge, Zhen Ming; Fei, Bei Li; Xie, Li Na; Li, Ya Lei; Li, Shengbo Eben; Li, Xiu Zhen; Ysebaert, Tom

doi:10.1016/j.ecss.2020.106752

Cited by 20 publications

(8 citation statements)

References 45 publications

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“…Knowledge of the morphology and spatial distribution of creeks is particularly relevant for ecological or biogeochemical surveys. This dataset will therefore support the study of various saltmarsh processes such as headward erosion 22 , seed dispersal 23 , development of vegetation patches 24 , tidal flow and sediment transport 25 , marsh flow attenuation 26 , and carbon storage 27 , and facilitate the interpretation of local observations at the scale of the entire saltmarsh. There is a strong need to conduct such surveys because current MR schemes often fail to provide the same ecosystem services as their natural counterparts 28 , 29 , and do not replicate the full plant diversity of natural wetlands 30 .…”

Section: Background and Summarymentioning

confidence: 91%

Morphological evolution of creek networks in 10 restored coastal wetlands in the UK

et al. 2022

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Coastal wetlands provide crucial ecosystem services including flood protection and carbon storage, but are being lost rapidly worldwide to the combined effects of sea-level rise, erosion and coastal urbanisation. Managed Realignment (MR) aims to mitigate for these losses by restoring reclaimed land to tidal influence. Data of creek evolution is critical to assess the performance of design strategies and improve design and implementation practices. This data descriptor provides a dataset of the horizontal morphological evolution of creek systems from various initial conditions in 10 MR schemes across the UK. Using a semi-automated workflow, morphological creek parameters were extracted from 52 lidar datasets at 1 m horizontal resolution spanning 2 to 20 years post-breach. This constitutes the most comprehensive systematic monitoring of MR creek morphology to date. The dataset will assist future MR design and provide baseline morphological information for ecological and biogeochemical surveying.

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Section: Background and Summarymentioning

confidence: 91%

Morphological evolution of creek networks in 10 restored coastal wetlands in the UK

et al. 2022

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“…Tidal creeks play a crucial role in the exchange of water, nutrients, and sediment, impacting the growth of saltmarsh vegetation (Tan et al, 2020;Wu et al, 2020). Their influence on patch distribution can be attributed to two main factors.…”

Section: Relationship Between Patches and Environmental Factorsmentioning

confidence: 99%

Measuring canopy morphology of saltmarsh plant patches using UAV-based LiDAR data

Hong,

Ge,

Wang

et al. 2024

Front. Mar. Sci.

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Plant patches play a crucial role in understanding the biogeomorphology of saltmarshes. Although two-dimensional optical remote sensing has long been applied to the study of saltmarsh plant patches, studies focusing on the canopy features at a patch-scale remain limited. Therefore, a simple and efficient method is needed to capture three-dimensional patch features and their relationship to habitat. This study utilized UAV-based LiDAR to obtain three-dimensional patch features of the native species S. mariqueter and the invasive species S. alterniflora in Andong Shoal, Hangzhou Bay, and examine the relationship between patch distribution and geomorphological characteristics. A workflow was established to overcome the inability of low-cost LiDAR sensor to penetrate dense vegetation, resulting in no ground return. Results showed that S. alterniflora patches were smaller in size but taller in canopy height than S. mariqueter patches. Regarding morphological patterns of patch canopy, S. alterniflora exhibited single-arch patterns (29%) and double-arch patterns (16%), whereas S. mariqueter exhibited only single-arch patterns (83%). The presence of double-arch patches suggested the development of fairy circles, indicating that the invasive S. alterniflora exhibits greater ecological resilience compared to the native S. mariqueter. Furthermore, this study explored the ecological niches of the two species in the pioneer zone of Andong Shoal. The ecological niches for S. alterniflora were 2.00-2.25 m, whereas that for S. mariqueter were 1.85-2.00 m and 2.25-2.40 m. Distance from the tidal creeks significantly moderated the number and area of patches for both species. This study demonstrated that UAV-based LiDAR technology can provide high-quality three-dimensional information about the pioneer zone of saltmarsh, thus helping to understand biogeomorphological processes in this region.

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“…For example, the micro-habitats are bare lands and/or the Spartina alterniflora community near tidal creeks due to long-time flooding and in the upper lands away from tidal reeks colonized by more plant communities like Suaeda glauca, Salicornia europaea, and Phragmites communis (Kim, 2018;Liu et al, 2020). It should be notable that the diverse microhabitats on the tidal creek section are to advantage to maintain the eco-functions, including biogeochemical processes, matter exchanges, environmental resilience, and so on (Arriola and Cable, 2017;Tan et al, 2020;Trifunovic et al, 2020;Wu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Soil Bacterial Community Structure in Different Micro-Habitats on the Tidal Creek Section in the Yellow River Estuary

Wang

Yang

et al. 2022

Front. Ecol. Evol.

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Tidal creeks have attracted considerable attention in estuary wetland conservation and restoration with diverse micro-habitats and high hydrological connectivity. Bacterial communities act effectively as invisible engines to regulate nutrient element biogeochemical processes. However, few studies have unveiled the bacterial community structures and diversities of micro-habitats soils on the tidal creek section. Our study selected three sections cross a tidal creek with obviously belt-like habitats “pluff mudflat – bare mudflat – Tamarix chinensis community – T. chinensis-Suaeda salsa community– S. salsa community” in the Yellow River estuarine wetland. Based on soil samples, we dissected and untangled the bacterial community structures and special bacterial taxa of different habitats on the tidal creek section. The results showed that bacterial community structures and dominant bacterial taxa were significantly different in the five habitats. The bacterial community diversities significantly decreased with distance away from tidal creeks, as well as the dominant bacteria Flavobacteriia and δ-Proteobacteria, but in reverse to Bacteroidetes and Gemmatimonadetes. Moreover, the important biomarkers sulfate-reducing bacteria and photosynthetic bacteria were different distributions within the five habitats, which were closely associated with the sulfur and carbon cycles. We found that the bacterial communities were heterogeneous in different micro-habitats on the tidal creek section, which was related to soil salinity, moisture, and nutrients as well as tidal action. The study would provide fundamental insights into understanding the ecological functions of bacterial diversities and biogeochemical processes influenced by tidal creeks.

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The roles of vegetation, tide and sediment in the variability of carbon in the salt marsh dominated tidal creeks

Cited by 20 publications

References 45 publications

Morphological evolution of creek networks in 10 restored coastal wetlands in the UK

Morphological evolution of creek networks in 10 restored coastal wetlands in the UK

Measuring canopy morphology of saltmarsh plant patches using UAV-based LiDAR data

Soil Bacterial Community Structure in Different Micro-Habitats on the Tidal Creek Section in the Yellow River Estuary

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