How to restore mangroves for greenbelt creation along eroding coasts with abandoned aquaculture ponds

Celine E.J. van Bijsterveldt; Bregje K. van Wesenbeeck; Daphne van der Wal; Norma Afiati; Rudhi Pribadi; Benjamin Brown; Tjeerd J. Bouma

doi:10.1016/j.ecss.2019.106576

How to restore mangroves for greenbelt creation along eroding coasts with abandoned aquaculture ponds

Celine E.J. van Bijsterveldt^*, Bregje K. van Wesenbeeck, Daphne van der Wal, Norma Afiati, Rudhi Pribadi, Benjamin Brown, Tjeerd J. Bouma

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Globally, erosion of muddy tropical coasts that are dominated by aquaculture ponds, is an increasing problem. Restoration of mangrove greenbelts may counteract such erosion, by restoring the sediment balance. Hence, we aim to unravel the processes controlling natural mangrove regeneration in both “landward” (i.e., into aquaculture ponds) and seaward direction, using the fast eroding coastline of Demak (Indonesia) as case study. Firstly, we investigated which physical and chemical factors drive landward mangrove expansion by relating them to the presence/absence of mangrove seedlings in abandoned aquaculture ponds. Secondly, we investigated which physical parameters control seaward mangrove expansion by relating them to expansion and retreat at the sea-side of mature mangrove stands. Landward mangrove expansion into abandoned aquaculture ponds was positively related to both emergence time (%) and sediment stability (i.e., shear strength), which are in turn both associated to bed level elevation and pond drainage. Surprisingly, there was no effect of soil chemistry. Seaward expansion of existing mangrove stands was strongly associated to foreshore morphology. Mangroves only expanded in the presence of an elevated mudflat, whereas the absence of a mudflat in combination with a concave (hollow) profile was associated with mangrove retreat. Our findings suggest that restoration of a mangrove greenbelt can be stimulated landward by improving drainage of abandoned aquaculture ponds. This enhances sediment stability and allows ponds to accrete. Seaward expansion can be induced by restoring foreshore morphology. Present results are discussed in the context of large-scale applications.

Original language	English
Article number	106576
Number of pages	13
Journal	Estuarine, Coastal and Shelf Science
Volume	235
DOIs	https://doi.org/10.1016/j.ecss.2019.106576
Publication status	Published - 5 Apr 2020

Funding

The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: The first author received a funding from the Alberta Mennega foundation and the foundation “ Dr. Christine Buisman Fund ” for travel costs to the field site. The work is (partly) financed by NWO Domain Applied and Engineering Sciences and co-financed by Boskalis Dredging and Marine experts , Van Oord Dredging and Marine Contractors bv , Deltares , Witteveen+Bos and Wetlands International . The authors would like to thank Annette Wielemaker for assisting with the GIS analysis. And we would like to thank prof. dr. Ir. Han Winterwerp, Miguel de Lucas Pardo, Maria Ibanez, Jan Gerritse, Thom Claessen, dr. Katherine Cronin, Lammert Hilarides, Rolf van Buren, Christiaan Hummel, Rikkert van der Lans, dr. Heinjo During, Dewi Megapuspa Nusari, Eko Budi Priyanto and Apri Astra for their help with analysis, conceptual ideas and field work. For this study, we received a contribution of the Alberta Mennega foundation and the foundation “ Dr. Christine Buisman Fund ”. This work is (partly) financed by NWO Domain Applied and Engineering Sciences and co-financed by Boskalis Dredging and Marine experts , Van Oord Dredging and Marine Contractors bv , Deltares , Witteveen+Bos and Wetlands International .

Keywords

Aquaculture
Coastal erosion
Ecosystem rehabilitation
Mangrove establishment
Mangrove greenbelt
Mangrove retreat

Access to Document

10.1016/j.ecss.2019.106576

1-s2.0-S0272771419305669-mainFinal published version, 2.93 MBLicence: Taverne

Cite this

@article{3b3927d6d16148c083cef19cb41efa6c,

title = "How to restore mangroves for greenbelt creation along eroding coasts with abandoned aquaculture ponds",

abstract = "Globally, erosion of muddy tropical coasts that are dominated by aquaculture ponds, is an increasing problem. Restoration of mangrove greenbelts may counteract such erosion, by restoring the sediment balance. Hence, we aim to unravel the processes controlling natural mangrove regeneration in both “landward” (i.e., into aquaculture ponds) and seaward direction, using the fast eroding coastline of Demak (Indonesia) as case study. Firstly, we investigated which physical and chemical factors drive landward mangrove expansion by relating them to the presence/absence of mangrove seedlings in abandoned aquaculture ponds. Secondly, we investigated which physical parameters control seaward mangrove expansion by relating them to expansion and retreat at the sea-side of mature mangrove stands. Landward mangrove expansion into abandoned aquaculture ponds was positively related to both emergence time (%) and sediment stability (i.e., shear strength), which are in turn both associated to bed level elevation and pond drainage. Surprisingly, there was no effect of soil chemistry. Seaward expansion of existing mangrove stands was strongly associated to foreshore morphology. Mangroves only expanded in the presence of an elevated mudflat, whereas the absence of a mudflat in combination with a concave (hollow) profile was associated with mangrove retreat. Our findings suggest that restoration of a mangrove greenbelt can be stimulated landward by improving drainage of abandoned aquaculture ponds. This enhances sediment stability and allows ponds to accrete. Seaward expansion can be induced by restoring foreshore morphology. Present results are discussed in the context of large-scale applications.",

keywords = "Aquaculture, Coastal erosion, Ecosystem rehabilitation, Mangrove establishment, Mangrove greenbelt, Mangrove retreat",

author = "{van Bijsterveldt}, {Celine E.J.} and {van Wesenbeeck}, {Bregje K.} and {van der Wal}, Daphne and Norma Afiati and Rudhi Pribadi and Benjamin Brown and Bouma, {Tjeerd J.}",

year = "2020",

month = apr,

day = "5",

doi = "10.1016/j.ecss.2019.106576",

language = "English",

volume = "235",

journal = "Estuarine, Coastal and Shelf Science",

issn = "0272-7714",

publisher = "Academic Press",

}

TY - JOUR

T1 - How to restore mangroves for greenbelt creation along eroding coasts with abandoned aquaculture ponds

AU - van Bijsterveldt, Celine E.J.

AU - van Wesenbeeck, Bregje K.

AU - van der Wal, Daphne

AU - Afiati, Norma

AU - Pribadi, Rudhi

AU - Brown, Benjamin

AU - Bouma, Tjeerd J.

PY - 2020/4/5

Y1 - 2020/4/5

N2 - Globally, erosion of muddy tropical coasts that are dominated by aquaculture ponds, is an increasing problem. Restoration of mangrove greenbelts may counteract such erosion, by restoring the sediment balance. Hence, we aim to unravel the processes controlling natural mangrove regeneration in both “landward” (i.e., into aquaculture ponds) and seaward direction, using the fast eroding coastline of Demak (Indonesia) as case study. Firstly, we investigated which physical and chemical factors drive landward mangrove expansion by relating them to the presence/absence of mangrove seedlings in abandoned aquaculture ponds. Secondly, we investigated which physical parameters control seaward mangrove expansion by relating them to expansion and retreat at the sea-side of mature mangrove stands. Landward mangrove expansion into abandoned aquaculture ponds was positively related to both emergence time (%) and sediment stability (i.e., shear strength), which are in turn both associated to bed level elevation and pond drainage. Surprisingly, there was no effect of soil chemistry. Seaward expansion of existing mangrove stands was strongly associated to foreshore morphology. Mangroves only expanded in the presence of an elevated mudflat, whereas the absence of a mudflat in combination with a concave (hollow) profile was associated with mangrove retreat. Our findings suggest that restoration of a mangrove greenbelt can be stimulated landward by improving drainage of abandoned aquaculture ponds. This enhances sediment stability and allows ponds to accrete. Seaward expansion can be induced by restoring foreshore morphology. Present results are discussed in the context of large-scale applications.

AB - Globally, erosion of muddy tropical coasts that are dominated by aquaculture ponds, is an increasing problem. Restoration of mangrove greenbelts may counteract such erosion, by restoring the sediment balance. Hence, we aim to unravel the processes controlling natural mangrove regeneration in both “landward” (i.e., into aquaculture ponds) and seaward direction, using the fast eroding coastline of Demak (Indonesia) as case study. Firstly, we investigated which physical and chemical factors drive landward mangrove expansion by relating them to the presence/absence of mangrove seedlings in abandoned aquaculture ponds. Secondly, we investigated which physical parameters control seaward mangrove expansion by relating them to expansion and retreat at the sea-side of mature mangrove stands. Landward mangrove expansion into abandoned aquaculture ponds was positively related to both emergence time (%) and sediment stability (i.e., shear strength), which are in turn both associated to bed level elevation and pond drainage. Surprisingly, there was no effect of soil chemistry. Seaward expansion of existing mangrove stands was strongly associated to foreshore morphology. Mangroves only expanded in the presence of an elevated mudflat, whereas the absence of a mudflat in combination with a concave (hollow) profile was associated with mangrove retreat. Our findings suggest that restoration of a mangrove greenbelt can be stimulated landward by improving drainage of abandoned aquaculture ponds. This enhances sediment stability and allows ponds to accrete. Seaward expansion can be induced by restoring foreshore morphology. Present results are discussed in the context of large-scale applications.

KW - Aquaculture

KW - Coastal erosion

KW - Ecosystem rehabilitation

KW - Mangrove establishment

KW - Mangrove greenbelt

KW - Mangrove retreat

UR - http://www.scopus.com/inward/record.url?scp=85078073111&partnerID=8YFLogxK

U2 - 10.1016/j.ecss.2019.106576

DO - 10.1016/j.ecss.2019.106576

M3 - Article

AN - SCOPUS:85078073111

SN - 0272-7714

VL - 235

JO - Estuarine, Coastal and Shelf Science

JF - Estuarine, Coastal and Shelf Science

M1 - 106576

ER -

How to restore mangroves for greenbelt creation along eroding coasts with abandoned aquaculture ponds

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this