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Salt marshes are valuable ecosystems that are vulnerable to lateral erosion, submergence, …
Semantic Scholar extracted view of "Modeling soil salinity distribution along topographic gradients in tidal salt marshes in Atlantic and Gulf coastal regions" by Hongqing Wang et al. ... An intertidal San Francisco Bay salt marsh was used to study the spatial relationships between vegetation patterns and hydrologic and edaphic variables.
According to the elevation and topographic gradients, the coastal salt marsh was artificially classified as low (elevation) marsh, middle (elevation) marsh and high (elevation) marsh, and there was different vegetation distribution in different marsh zones. In the low marsh, the vegetation is dominated by the invasive species Spartina alterniflora.
We used LiDAR topographic data, AVIRIS hyperspectral data, and locally measured tidal fluctuations to characterize patterns of plant distribution within a southern California salt marsh (Carpinteria Salt Marsh (CSM)). LiDAR data required ground truthing and correction before they were suitable for use.
Do species richness and species abundances vary with plot size?Location: Intertidal plain of Volcano Marsh, Bahia de San Quintin, Mexico.Methods: We (PDF) Relationship between topographic heterogeneity and vegetation patterns in a Californian salt marsh | Luna Luna - …
Fiddler crabs are one of the principal agents of bioturbation in intertidal salt marshes. The physical, chemical, and biological properties of sediments can be modified by fiddler crab burrowing activity. This study examined the effect of fiddler crab burrowing on sediment reworking and the distributions of 210 Pb and 137 Cs in salt marsh sediments at …
examine the soil salinity distribution along a topographic gra-dient in a Gulf Coastal salt marsh; (c) examine the effects of major forcing (tide regime, climate, soil properties, and vege-tation) on soil salinity in salt marshes along the Atlantic and Gulf coasts of the US. 2. …
Noticeable amongst the bioturbation occurring in salt marshes is the excavation and maintenance of burrows by fiddler crabs (Uca spp.) that turn over and rework 7-48% of surficial (0-15 cm) marsh ...
Vegetation salt secretion was incorporated in the original model by Morris (1995) and Wang et al. (2007) for salt marsh condition but was not added here based on the assumption that freshwater ...
Lidar-derived digital elevation models (DEMs) are crucial for modeling salt marsh evolution, forecasting inundation depth, frequency, and duration, and simulating sea level rise. Advances in lidar acquisition and data processing techniques have led to increased accuracy; however, in densely vegetated coastal salt marsh areas, lidar-derived DEMs are generally unreliable …
Characterizing patterns of plant distribution in a southern California salt marsh using remotely sensed topographic and hyperspectral data and local tidal fluctuations. Author links open ... Salt marsh plant communities can be highly heterogeneous at a small spatial scale and the relationship between heterogeneity and pixel size makes selection ...
[1] The purpose of this study was to assess the spatial and temporal variability in overmarsh and in-channel currents, and to assess that variability in the context of salt marsh topographic structure. We created a high accuracy digital elevation model of a salt marsh island using a real time kinematic Global Positioning System. We measured currents with two …
The Yellow River Delta wetland has a complex coastal system and provides an ideal topographic gradient that can be used to assess changes in the food web trophic structure among variable vegetated ...
Therefore, the spatial and temporal variation in soil salinity is a critical part of salt marsh ecology. Tidal salt marshes typically consist of high, middle, and low marsh zones. Elevation of tidal marshes plays an important role in the structure and function of salt marsh ecosystems because it is directly related to inundation frequency and ...
DOI: 10.1007/S12237-010-9364-4 Corpus ID: 84495543; Community Structure and Abiotic Determinants of Salt Marsh Plant Zonation Vary Across Topographic Gradients @article{Cui2011CommunitySA, title={Community Structure and Abiotic Determinants of Salt Marsh Plant Zonation Vary Across Topographic Gradients}, author={Baoshan Cui and Qiang …
environment, and its expansion into the salt marsh was restricted by elevation in tidal areas greater than 1.80 m NAVD 88, spring soil moisture levels lower than 20%, and year-round salinity ...
Estuaries and Coasts (2011) 34:459–469 DOI 10.1007/s12237-010-9364-4 Community Structure and Abiotic Determinants of Salt Marsh Plant Zonation Vary Across Topographic Gradients Bao-Shan CUI & Qiang HE & Yuan AN Received: 16 December 2009 / Revised: 13 September 2010 / Accepted: 10 December 2010 / Published online: 21 January 2011 # Coastal and Estuarine …
An evaluation was completed to compare the accuracy of lidar (Light Detection and Ranging) against a statistically representative array of Real-Time Kinematic (RTK) GPS data in a low gradient, vegetated Southeastern U.S. salt marsh. In order to discern potential bias, analyses were carried out separately on the platform-only data, the creek-only data and then the …
Limited vegetation development on a created salt marsh associated with over-consolidated sediments and lack of topographic heterogeneity Estuaries Coasts, 38 ( 2015 ), pp. 325 - 336 CrossRef View in Scopus Google Scholar
Topographic heterogeneity provides a potential opportunity for seedling recruitment in the disturbance-dynamic ecosystem. Micro-topography manipulation is the typical way to imitate or recover the natural topographic heterogeneity for the degraded salt marsh restoration. However, it is still not clear how different micro-topographic structures work along …
Light detection and ranging (lidar) digital elevation models (DEMs) are crucial for modeling …
Accuracy Assessment of Lidar Saltmarsh Topographic Data Using RTK GPS. …
Limited Vegetation Development on a Created Salt Marsh Associated with Over-Consolidated Sediments and Lack of Topographic Heterogeneity ... 369 370 The reference marsh shows considerable topographic heterogeneity, even on horizontal 371 scales of a few metres. This is typical of natural marshes, and develops, at least in part, 372 during the ...
Torres and Styles (2007) present results that imply a first-order control of salt marsh topographic structure on over-marsh flow complexities, including current reversal in tidal creeks associated ...
In this contribution, we examine the morphological properties of both prograding and retreating salt marsh margins in Moricambe Bay, a sheltered mega-tidal bay for which topographic data are ...
Scale-dependent effects of grazing and topographic heterogeneity on plant species richness in a Dutch salt marsh ecosystem. Jasper L. Ruifrok, Jasper L. Ruifrok. Community and Conservation Ecology group, Centre for Evolutionary and Ecological Studies, University of Groningen, P.O. Box 11103, Groningen, 9700 CC The Netherlands ...
Restored salt marshes frequently lack the full range of plant communities present on reference marshes, with upper marsh species underrepresented. This often results from sites being too low in the tidal frame and/or poorly drained with anoxic sediments. A managed coastal realignment scheme at Abbotts Hall, Essex, UK, has oxic sediments at elevations at which upper marsh …
Compared to natural saltmarshes, the soil surfaces of these disturbed and compacted saltmarshes lack topographic heterogeneity, which may have a negative impact on colonization by saltmarsh plants ...
In this article, we investigate the need for local topographic ground truth data to train random forest (RF) DEM adjustment models for two similar northern Gulf of Mexico salt marshes. Two RTK ...
