Accommodation space indicates dune development potential along an urbanized and frequently nourished coastline

Abstract. With densely populated areas well below mean sea level, the Netherlands relies heavily on its dunes to ensure coastal safety. About half of the sandy coastline, however, is subject to structural marine erosion and requires frequent sand nourishment as a counteractive measure. A key component of present-day coastal safety policy is creating favorable conditions for natural dune development. These conditions essentially involve (1) a steady supply of wind-blown sand towards (2) a wide accommodation space where sand can accumulate and dunes are sheltered from frequent storm surge impacts. This paper examines to what extent an experimental mega-scale beach nourishment (termed Zandmotor in Dutch) has contributed to creating accommodation space favorable for dune development. Using publicly available airborne lidar data and Sentinel-2 satellite imagery, favorable accommodation space is identified by comparing recent changes in coastal morphology against dune vegetation-cover dynamics. With a focus on European marram grass (Ammophila arenaria) as the most prominent dune-building species, this paper demonstrates that the Zandmotor supports an especially high potential for incipient (embryo) dunes to develop as most of its favorable accommodation space is located on the beach. However, considering the conditions required for successful marram grass establishment as well as persistent anthropogenic disturbances arising from recreation and nature management practices, it is not likely that dune development along this urbanized coastline reaches its full potential.

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Accommodation space indicates dune development potential along an urbanized and frequently nourished coastline

10.5194/esurf-2018-37 ◽

2018 ◽

Author(s):

Corjan Nolet ◽

Michel J. P. M. Riksen

Keyword(s):

Airborne Lidar ◽

Nature Management ◽

Full Potential ◽

Ammophila Arenaria ◽

Dune Vegetation ◽

Coastal Morphology ◽

Accommodation Space ◽

Natural Dune ◽

Favorable Conditions ◽

Airborne Lidar Data

Abstract. With densely populated areas well below mean sea level, the Netherlands relies heavily on its dunes to ensure coastal safety. About half of the sandy coastline, however, is subject to structural marine erosion and requires frequent sand nourishments as a counteractive measure. A key component of present-day coastal safety policy is creating favorable conditions for natural dune development. These conditions essentially involve a (1) steady supply of wind-blown sand towards (2) wide accommodation space where sand can accumulate and dunes are sheltered from storm surge impact. This paper examines to what extent an experimental mega-scale beach nourishment (termed Zandmotor in Dutch) has contributed to creating accommodation space favorable for dune development. Using publicly available airborne Lidar data and Sentinel-2 satellite imagery, favorable accommodation space is identified by comparing recent changes in coastal morphology against dune vegetation cover dynamics. With a focus on European marram grass (Ammophila arenaria) as the most prominent dune-building species, this paper demonstrates that the Zandmotor supports an especially high potential for incipient (embryo) dunes to develop as most of its favorable accommodation space is located on the beach. However, considering persistent anthropogenic disturbances arising from recreation, leisure and nature management, dune development along this urbanized coastline may not reach its full potential.

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Burial, erosion, and transformation of archaeological landscapes

Progress in Physical Geography Earth and Environment ◽

10.1177/0309133318795844 ◽

2018 ◽

Vol 42 (5) ◽

pp. 607-627 ◽

Cited By ~ 6

Author(s):

Michael Hilton ◽

Richard Walter ◽

Karen Greig ◽

Teresa Konlechner

Keyword(s):

New Zealand ◽

Archaeological Sites ◽

Ammophila Arenaria ◽

Dune Vegetation ◽

Dune System ◽

Dune Systems ◽

Marram Grass ◽

System Restoration ◽

The Impact ◽

Archaeological Landscape

A high proportion of archaeological sites are located on the world’s shorelines and recent research has documented the vulnerability of these sites to coastal processes and climate change. However, archaeological landscapes on many temperate coasts have already been degraded as a result of changes in dune dynamics related to changes in dune vegetation. These changes have produced marked spatial and temporal variations in patterns of burial and erosion in transgressive dune systems. This paper examines the modification and conservation of archaeological landscapes from a biogeomorphic perspective, using the example of marram grass ( Ammophila arenaria) invasion of dune systems in southern New Zealand. The impact of marram grass on dune system dynamics and the underlying archaeological landscape are complex. Full invasion may result in the general burial and protection of these landscapes, but the risk of degradation of sites is high during the invasion process. In southern New Zealand, marram invasion has resulted in the formation of stable foredunes, often associated with coastal progradation. Archaeological sites located close to the shoreline can be subject to either burial or erosion, or both, as marram grass establishes in the foredune zone. The spatial relationship between cultural sites and the shoreline may be lost as the coast progrades. The impact of marram invasion can extend throughout the hinterland dune system as a result of (i) dune mobility triggered by marram grass invasion and (ii) the development of a negative sand budget, which prevents or reduces beach-foredune-dune system sand exchange. The risk of degradation of the archaeological landscape can be significantly heighted by marram invasion, which can have profound implications for the preservation and interpretation of archaeological sites and materials. Paradoxically, dune system restoration may lead to the re-exposure of these sites, but the principal outcome of dune system restoration is expected to be a decline erosion (manifest as in deflation surfaces) and reburial of the archaeological landscape.

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Use of airborne Lidar to investigate mangrove accommodation space in macrotidal estuaries of northern Australia

Estuarine Coastal and Shelf Science ◽

10.1016/j.ecss.2020.106988 ◽

2020 ◽

Vol 245 ◽

pp. 106988 ◽

Cited By ~ 1

Author(s):

Colin D. Woodroffe ◽

Kristian Kumbier ◽

Kerrylee Rogers

Keyword(s):

Airborne Lidar ◽

Northern Australia ◽

Accommodation Space

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Demystifying Collaboration in BIM-Based Projects Under Design-Build Procurement

Contemporary Strategies and Approaches in 3-D Information Modeling - Advances in Civil and Industrial Engineering ◽

10.4018/978-1-5225-5625-1.ch007 ◽

2018 ◽

pp. 158-190

Author(s):

Benjamin R. Jowett ◽

Malak Al Hattab ◽

Mohamad Kassem

Keyword(s):

Management Practices ◽

Project Delivery ◽

Full Potential ◽

Integrated Project Delivery ◽

Building Information Modelling ◽

Engineering Construction ◽

Design Build ◽

Building Information ◽

Integrated Project ◽

Value Realization

Building information modelling (BIM) tools and workflows, new procurements methods, and emerging management practices are being adopted on projects to overcome collaboration barriers and improve project performance within the architecture, engineering, construction, and operation (AECO) sector. Academic literature and industry reports recommend the use of collaborative procurement methods such as design and build (DB) procurement and integrated project delivery (IPD) when adopting BIM workflows. However, to date there are little operationalization and empirical evidence of the value realization potential when using BIM in conjunction to these procurement methods. This chapter draws upon five case studies of BIM-based DB projects to analyze and quantify the potential of value realization using clash detection as a use value. The results reveal potential hurdles inhibiting BIM from reaching its full potential. Accordingly, recommended changes to the current processes are suggested to facilitate BIM in enhancing value on DB projects.

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PRE- and POST-STORM LiDAR SURVEYS FOR ASSESSMENT OF IMPACT ON COASTAL EROSION

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-archives-xlii-3-w8-261-2019 ◽

2019 ◽

Vol XLII-3/W8 ◽

pp. 261-266

Author(s):

A.-L. Montreuil ◽

M. Chen ◽

A. Esquerré ◽

R. Houthuys ◽

R. Moelans ◽

...

Keyword(s):

Management Practices ◽

Morphological Changes ◽

Storm Surges ◽

High Water ◽

Water Levels ◽

Airborne Lidar ◽

Coastline Change ◽

The Mean ◽

The Impact

Abstract. Sustainable management of the coastal resources requires a better understanding of the processes that drive coastline change. The coastline is a highly dynamic sea-terrestrial interface. It is affected by forcing factors such as water levels, waves, winds, and the highest and most severe changes occur during storm surges. Extreme storms are drivers responsible for rapid and sometimes dramatic changes of the coastline. The consequences of the impacts from these events entail a broad range of social, economic and natural resource considerations from threats to humans, infrastructure and habitats. This study investigates the impact of a severe storm on coastline response on a sandy multi-barred beach at the Belgian coast. Airborne LiDAR surveys acquired pre- and post-storm covering an area larger than 1 km2 were analyzed and reproducible monitoring solutions adapted to assess beach morphological changes were applied. Results indicated that the coast retreated by a maximum of 14.7 m where the embryo dunes in front of the fixed dunes were vanished and the foredune undercut. Storm surge and wave attacks were probably the most energetic there. However, the response of the coastline proxies associated with the mean high water line (MHW) and dunetoe (DuneT) was spatially variable. Based on the extracted beach features, good correlations (r>0.73) were found between coastline, berm and inner intertidal bar morphology, while it was weak with the most seaward bars covered in the surveys. This highlights the role of the upper features on the beach to protect the coastline from storm erosion by reducing wave energy. The findings are of critical importance in improving our knowledge and forecasting of coastline response to storms, and also in its translation into management practices.

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Six Sigma in Human Resources

Statistical Tools and Analysis in Human Resources Management - Advances in Human Resources Management and Organizational Development ◽

10.4018/978-1-5225-4947-5.ch011 ◽

2017 ◽

pp. 242-269

Author(s):

Sushree Lekha Padhi

Keyword(s):

Resource Management ◽

Human Resource Management ◽

Human Resource ◽

Six Sigma ◽

Management Practices ◽

Full Potential ◽

Support Functions ◽

Business Excellence ◽

Customer Delight ◽

Voice Of Customer

HR business partner, Business Excellence are some buzzwords in the industry nowadays. Profitability and efficiency are being driven through various strategic initiatives aligned to the vision of the organization. Customer satisfaction is now being replaced by customer delight. Organizations are taking steps ahead of voice of customer. The consumer insights are thoroughly analyzed and interpreted. Data analytics is not restricted to only finance and operation functions but are widely used across the support functions along with line functions. Human resource is now considered as an asset. Organizations are also trying to find out ways to capitalize the full potential of human asset. Various tools and methodologies are paving its way to bring efficient human resource management practices. Six Sigma is one of the tools, which is booming into the application space of Human Resource Management. Six Sigma is being considered as a business process and is helping the in shaping and improving their bottom line by designing and monitoring various activities to reduce the defects.

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Penaeid Shrimp Aquaculture

Fisheries and Aquaculture ◽

10.1093/oso/9780190865627.003.0010 ◽

2020 ◽

pp. 233-258

Author(s):

Claude E. Boyd ◽

Lauren N. Jescovitch

Keyword(s):

Natural Waters ◽

Management Practices ◽

Penaeus Monodon ◽

Penaeid Shrimp ◽

Culture Method ◽

Shrimp Aquaculture ◽

Full Potential ◽

Specific Pathogen ◽

Future Demands ◽

Disease Epidemics

Aquaculture supplies about 60% of the current market demand for shrimp. The entire increase for future demands must come from aquaculture since the capture from natural waters is not expected to increase. Shrimp aquaculture is conducted in many tropical and subtropical countries, but six countries—China, Indonesia, Vietnam, India, Ecuador, and Thailand—produce about 85% of cultured shrimp. Shrimp aquaculture relies on penaeid shrimp species, and two species, Litopenaeus vannamei and Penaeus monodon, account for most of the production. Shrimp aquaculture had an annual value of USD23.6 billion in 2014, making it a major item in international trade. Shrimp are produced almost exclusively in coastal ponds filled with estuarine or seawater. Small shrimp for stocking in ponds are produced in hatcheries mostly from farm-reared broodstock. Production intensity in ponds ranged from 200 to 500 kg/ha/crop in fertilized ponds to 5,000–10,000 kg/ha/crop in ponds with feeding and mechanical aeration. Up to three crops per year may be produced depending upon the location, species, and culture method. Shrimp culture can be seriously affected by viral diseases, and new diseases have been a constant threat to production success. The future of shrimp aquaculture is bright, but for it to reach its full potential, improved broodstock, high health, specific pathogen-free shrimp for stocking, better biosecurity for prevention of disease epidemics, better pond management practices, and more attention to avoiding negative environmental impacts will be necessary.

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Six Sigma in Human Resources

10.4018/978-1-6684-3873-2.ch045 ◽

2022 ◽

pp. 867-890

Author(s):

Sushree Lekha Padhi

Keyword(s):

Resource Management ◽

Human Resource Management ◽

Human Resource ◽

Six Sigma ◽

Management Practices ◽

Full Potential ◽

Support Functions ◽

Business Excellence ◽

Customer Delight ◽

Voice Of Customer

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Competition between endoparasitic nematodes and effect on biomass of Ammophila arenaria (marram grass) as affected by timing of inoculation and plant age

Nematology ◽

10.1163/1568541054879647 ◽

2005 ◽

Vol 7 (2) ◽

pp. 169-178 ◽

Cited By ~ 16

Author(s):

Wim van der Putten ◽

Henk Duyts ◽

E. Pernilla Brinkman

Keyword(s):

Interspecific Competition ◽

Intraspecific Competition ◽

Plant Biomass ◽

Nematode Species ◽

Pratylenchus Penetrans ◽

Agricultural Systems ◽

Ammophila Arenaria ◽

Marram Grass ◽

Natural Dune ◽

Dune Grass

AbstractWe studied the effects of intra- and interspecific competition on the abundance of endoparasitic nematodes and assessed the consequences for biomass production of the natural dune grass Ammophila arenaria. Pratylenchus penetrans was limited by intraspecific competition and it suppressed the abundance of Heterodera arenaria, whilst the interaction between H. arenaria and Meloidogyne maritima was neutral. Pratylenchus penetrans and H. arenaria reduced plant biomass, whereas M. maritima did not. Plant biomass was not differently affected by adding one or two nematode species. When added to older plants, numbers of H. arenaria and M. maritima were higher but numbers of P. penetrans were lower, resulting in less reduction of plant biomass. We discuss our results on this natural system with respect to patterns of interspecific nematode competition observed in agricultural systems.

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