Identifying knowledge gaps hampering application of intertidal habitats in coastal protection: Opportunities &amp; steps to take

Bouma, Tjeerd J.; Belzen, Jim van; Balke, Thorsten; Zhu, Zhenchang; Airoldi, Laura; Blight, Andrew J.; Davies, Andrew J.; Galván, Cristina; Hawkins, Stephen J.; Hoggart, Simon; Lara, Javier L.; Losada, Íñigo J.; Maza, María; Ondiviela, Bárbara Ruiz; Skov, Martin W.; Strain, Elisabeth M. A.; Thompson, Richard C.; Yang, S.L.; Zanuttigh, Barbara; Zhang, L.; Herman, Peter M. J.

doi:10.1016/j.coastaleng.2013.11.014

Cited by 276 publications

(294 citation statements)

References 94 publications

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“…Consequences of the loss of these intertidal habitats are manifold as they are very productive, diverse systems that provide several crucial ecosystem goods and services such as provision of habitat for bird life (Costanza et al, 1997;Barbier et al, 2011). Recently, the role of tidal flats in coastal protection and adaptation is increasingly recognized (Temmerman et al, 2013;Bouma et al, 2014). They act as a natural buffer for flood protection and erosion control by inducing wave and tidal energy dissipation, and as a sediment trap, thus helping to build land seawards.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a tidal flat sediment nourishment as estuarine management measure

Werf

Reinders

Rooijen

et al. 2015

Ocean & Coastal Management

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a b s t r a c tThe tidal flats in the Eastern Scheldt tidal basin (The Netherlands) are eroding as a result of the construction of the storm surge barrier. These intertidal areas are important foraging grounds for birds and therefore it is important to mitigate the negative effects of erosion. As a pilot, a small part (20 ha) of the Galgeplaat tidal flat in the middle of the Eastern Scheldt was nourished with 130,000 m 3 of sediment in 2008. This paper investigates this tidal flat nourishment using a large set of morphological and ecological monitoring data from 2008 to 2012. The nourishment proved effective in mitigating the negative effects of tidal flat erosion. The elevated tidal flat provides a foraging area for birds that is available for a longer period. The nourished area was relatively stable, giving time for the recovery of benthic macrofauna such that birds can benefit from the longer exposure time. Therefore, we conclude that sediment nourishments are an effective management measure to counteract the negative consequences of tidal flat erosion in the Eastern Scheldt, and have potential for other estuaries worldwide.

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Section: Introductionmentioning

confidence: 99%

Evaluation of a tidal flat sediment nourishment as estuarine management measure

Werf

Reinders

Rooijen

et al. 2015

Ocean & Coastal Management

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“…The overall benefit and the cost-effectiveness of coastal ecosystems or "green infrastructure" is highly dependent on site-specific parameters (Reguero et al 2014); gray infrastructure such as seawalls and dykes will thus remain an important component of coastal defense, both alone and in combination with green infrastructure in "hybrid" approaches (Spalding et al 2014). Hybrid solutions present opportunities to capitalize on the benefits of both green and gray approaches while counteracting their respective limitations (Bouma et al, 2014;National Science and Technology Council, 2015). For example, mangrove restoration projects in Vietnam have been integrated with sea dykes over more than 100 km of the coastline, to provide more effective coastal protection (World Bank, 2016).…”

Section: Discussionmentioning

confidence: 99%

Rethinking Our Global Coastal Investment Portfolio

McCreless¹,

Beck²

2017

Journal of Ocean and Coastal Economics

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Coastal gray infrastructure, including roads, bridges, and buildings, is critical for communities, and we invest significantly in it. We also invest in the restoration and maintenance of coastal green infrastructure such as wetlands and reefs, which provide many services and benefits to human communities. However, the relative scale of financial investments in different coastal sectors -that is, our global coastal investment portfolioremains poorly understood. We identify some of the major sources of funding for coastal green and gray infrastructure globally, including international aid funds; US public and private funds for coastal conservation, restoration and management; and private (insurance) and public funds spent on rebuilding after coastal storms. For the 10-year period from 2004-2013, we identify a total of US $14 billion in funds for coastal conservation and green infrastructure and $198 billion in international aid funds for coastal grey infrastructure. Coastal storms during the same decade caused an estimated US $514 billion in damages globally, of which $214 billion were insured losses, while $3.5 billion in international aid funds were spent on relief and reconstruction after these storm events. We conclude that funds for green infrastructure make up a small fraction -roughly three per cent -of global financial investments along coastlines. We identify the major funders in different coastal spending categories and discuss ways to move toward a more balanced investment portfolio that could benefit biodiversity, prevent billions of dollars of storm damage, and help protect the lives and livelihoods of coastal residents.

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“…Salt marshes are increasingly recognized for their coastal defence value (Temmerman et al 2013). Being able to actually apply them within coastal defence schemes requires that we are able to predict their long-term dynamics and understand how to create marshes at locations where they are needed (Bouma et al 2014). Within this presentation, we will highlight recent findings , Cao et al submitted, in prep., Hu et al 2015a on the role of sediment dynamics on salt-marsh establishment and their cyclic dynamics consisting of alternating lateral erosion and lateral expansion.…”

Section: Examples and Outlookmentioning

confidence: 92%