scholarly journals Correction to: Seed Burial Alleviates Wave Energy Constraints on Zostera marina (Eelgrass) Seedling Establishment at Restoration-Relevant Scales

2021 ◽  
Vol 44 (2) ◽  
pp. 578-578
Author(s):  
Scott R. Marion ◽  
Robert J. Orth ◽  
Mark Fonseca ◽  
Amit Malhotra
Keyword(s):  
Wave Energy ◽  
Zostera Marina ◽  
Seedling Establishment ◽  
Seed Burial ◽  
Energy Constraints

scholarly journals Seed biology of brome grass weeds (Bromus diandrus and B hordeaceus) and effects of land management

2010 ◽  
Vol 63 ◽  
pp. 78-83
Author(s):  
F. Dastgheib ◽  
N. Poole
Keyword(s):  
Land Management ◽  
Seedling Establishment ◽  
Management Practices ◽  
Detrimental Effect ◽  
Soil Surface ◽  
Seed Burial ◽  
Bromus Diandrus ◽  
Seed Biology ◽  
Brome Grass ◽  
Brome Grasses

Aspects of seed biology of ripgut brome (Bromus diandrus) and soft brome (B hordeaceus) were studied in relation to land management practices Among the practices tested burning stubble had a detrimental effect on seed survival The majority of seeds close to the soil surface were charred or nonviable following a stubble fire Overall higher brome infestation was measured in notillage compared to minimum tillage or burning treatments More than 80 of the seeds of both species emerged in the field within the first couple of months after planting and full germination was achieved by spring Seed burial at depths from 1 to 20 cm did not significantly affect germination but seedling establishment and vigour was reduced with seed depth Implications of these results in management of brome grasses are discussed

scholarly journals Fatal germination in barnyardgrass (Echinochloa crus-galli)

2013 ◽  
Vol 49 (No. 4) ◽  
pp. 193-197 ◽  
Author(s):  
Z. Martinková ◽  
A. Honěk
Keyword(s):  
Seed Bank ◽  
Seedling Establishment ◽  
Burial Depth ◽  
Spring Season ◽  
Seed Burial ◽  
Pre Treatment ◽  
Germinated Seeds

Seeds of weeds buried by tillage may germinate at depths from which seedlings cannot establish. In barnyardgrass (Echinochloa crus-galli) we investigated how fatal germination was influenced by the depth and time of seed burial. The proportion of germinated seeds decreased with burial depth to 0–20% at ≥ 0.1 m depth which is fatal for seedling establishment. The percentage of fatal germination was greater for the seeds buried during the spring season than during autumn. Germination was influenced by seed pre-treatment, after ripening or stratification. Spring ploughing of non-dormant seeds below 0.1 m depth induces fatal germination, decreasing in this way seed bank of barnyardgrass.

scholarly journals Seed burial in eelgrass Zostera marina: the role of infauna

2013 ◽  
Vol 474 ◽  
pp. 135-145 ◽  
Author(s):  
NJ Blackburn ◽  
RJ Orth
Keyword(s):  
Zostera Marina ◽  
Seed Burial

Nature Based Solution simulation design methods – A storm surge seagrass application

2021 ◽  
Author(s):  
Umesh Pranavam Ayyappan Pillai ◽  
Nadia Pinardi ◽  
Ivan Federico ◽  
Salvatore Causio ◽  
Jacopo Alessandri ◽  
...  
Keyword(s):  
Storm Surge ◽  
Wave Energy ◽  
Zostera Marina ◽  
Design Methodology ◽  
Storm Surges ◽  
Well Being ◽  
Bottom Friction ◽  
Simulation Design ◽  
Significant Wave ◽  
Coastal Strip

<p>Nature Based solutions (NBS) have been presented in the recent past as a potential solution to natural and climate change adverse effects on human well-being and socio-economic activities.  In this study, we present a simulation design methodology for NBS that can mitigate the effect of storm surges and coastal erosion. The chosen NBS is marine seagrass and it will be applied to the coastal strip of the Emilia-Romagna coasts. Within the framework of the OPEn-air laboRAtories for Nature baseD solUtions to Manage environmental risks (OPERANDUM) project, the seagrass NBS is presented within a simulation design methodology consisting of the comparison between validated wave numerical simulations for the present climate and modified wave simulations with marine seagrass. In this context, the unstructured version of WAVEWATCH III (WW3) model has been implemented for simulating the wave characteristics across the Emilia-Romagna coastal strip with and without seagrass.</p><p>The calibration/validation of WW3 was carried out and sensitivity experiments using the various wind-input dissipation source packages and bottom friction formulations were also attempted to evaluate the model performances (validation results presented here are for the entire 2017 year). The ST6 physics along with SHOWEX bottom friction formulations were chosen ideal for the study area. To evaluate the model results a directional wave rider buoy data was utilized. The model simulated significant wave parameters namely Hs (significant wave height), Tm (mean wave period) were compared with buoy observations and high correlations (0.93) were found with Hs comparison. Further the WW3 model was modified by including the modified bottom dissipation stress due to submerged vegetation, thereby incorporating the NBS as a potential mechanism for wave amplitude reduction. The seagrass species ‘Zostera marina’ was chosen in this study and comparisons showed that seagrass is capable to reduce the wave energy in the study area. Furthermore, the dependence on seagrass plant high-density and low-density scenarios, together with seagrass parameters (height and width of the seagrass) and species show the sensitivity of the results even on reduction of wave energy as obtained with different degrees by all NBS scenarios.    </p><p><strong>Keywords</strong>: Nature-based solutions, WW3, marine seagrass, storm surge, Zostera marina.</p>

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