Subsidence of organic dredged sediments in an upland deposit in Wormer- en Jisperveld

North Holland, the Netherlands

Bruna R.F. Oliveira, Martijn P.J. Smit, Harry Veld, Leon van Paassen, Huub H.M. Rijnaarts, Tim Grotenhuis

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Land subsidence in low-lying peatlands can be caused by shrinkage and organic matter oxidation. When these areas have networks of ditches and canals for drainage purposes, the sediments that accumulate in the waterways can be used to reverse the process of land subsidence. The objective of this study is to understand how dredged sediments can be used to reverse the process of land subsidence by analysing the contribution of shrinkage and organic matter mineralization to the subsidence observed in an upland deposit. A deposit of dredged sediments in the Wormer- en Jisperveld—North Holland, the Netherlands—was characterized during 17 months in terms of subsidence of the sediments, subsidence of the soil underlying the deposit, geotechnical water content, organic matter content, type of organic matter and nutrients. The deposit was filled to a height of 195 cm, and after 17 months, the subsidence of the sediments was 88 cm. In addition, a subsidence of 19.5 cm of the underlying soil was observed. Subsidence could be attributed to shrinkage since no significant changes in the organic matter content and total organic carbon were observed. The type of organic matter changed in the direction of humification until winter 2014, stabilized from winter 2014 to spring 2015 and changed in the direction of mineralization after the spring of 2015. Subsidence of dredged sediments in upland deposits is caused by shrinkage during the first 17 months. The solution of spreading thinner layers of sediments over the land to decrease the subsidence rates should be explored since the pressure of the deposit on the underlying soil caused an extra subsidence of 19.5 cm.

Original languageEnglish (US)
Article number131
JournalEnvironmental Earth Sciences
Volume77
Issue number4
DOIs
StatePublished - Feb 1 2018
Externally publishedYes

Fingerprint

subsidence
Subsidence
Netherlands
Sediments
highlands
Deposits
sediments
Biological materials
sediment
soil organic matter
shrinkage
organic matter
drainage channels
Soils
mineralization
soil
humification
waterways
winter
Canals

Keywords

  • Dredged sediments
  • Lowlands
  • Organic matter oxidation
  • Peatlands
  • Shrinkage
  • Subsidence
  • Upland deposit

ASJC Scopus subject areas

  • Global and Planetary Change
  • Environmental Chemistry
  • Water Science and Technology
  • Soil Science
  • Pollution
  • Geology
  • Earth-Surface Processes

Cite this

Subsidence of organic dredged sediments in an upland deposit in Wormer- en Jisperveld : North Holland, the Netherlands. / Oliveira, Bruna R.F.; Smit, Martijn P.J.; Veld, Harry; van Paassen, Leon; Rijnaarts, Huub H.M.; Grotenhuis, Tim.

In: Environmental Earth Sciences, Vol. 77, No. 4, 131, 01.02.2018.

Research output: Contribution to journalArticle

Oliveira, Bruna R.F. ; Smit, Martijn P.J. ; Veld, Harry ; van Paassen, Leon ; Rijnaarts, Huub H.M. ; Grotenhuis, Tim. / Subsidence of organic dredged sediments in an upland deposit in Wormer- en Jisperveld : North Holland, the Netherlands. In: Environmental Earth Sciences. 2018 ; Vol. 77, No. 4.
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AB - Land subsidence in low-lying peatlands can be caused by shrinkage and organic matter oxidation. When these areas have networks of ditches and canals for drainage purposes, the sediments that accumulate in the waterways can be used to reverse the process of land subsidence. The objective of this study is to understand how dredged sediments can be used to reverse the process of land subsidence by analysing the contribution of shrinkage and organic matter mineralization to the subsidence observed in an upland deposit. A deposit of dredged sediments in the Wormer- en Jisperveld—North Holland, the Netherlands—was characterized during 17 months in terms of subsidence of the sediments, subsidence of the soil underlying the deposit, geotechnical water content, organic matter content, type of organic matter and nutrients. The deposit was filled to a height of 195 cm, and after 17 months, the subsidence of the sediments was 88 cm. In addition, a subsidence of 19.5 cm of the underlying soil was observed. Subsidence could be attributed to shrinkage since no significant changes in the organic matter content and total organic carbon were observed. The type of organic matter changed in the direction of humification until winter 2014, stabilized from winter 2014 to spring 2015 and changed in the direction of mineralization after the spring of 2015. Subsidence of dredged sediments in upland deposits is caused by shrinkage during the first 17 months. The solution of spreading thinner layers of sediments over the land to decrease the subsidence rates should be explored since the pressure of the deposit on the underlying soil caused an extra subsidence of 19.5 cm.

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