Spatial Analysis of Soil Subsidence in Peat Meadow Areas in Friesland in Relation to Land and Water Management, Climate Change, and Adaptation

Brouns, Karlijn; Eikelboom, Tessa; Jansen, P.C.; Janssen, Ron; Kwakernaak, C.; Akker, J.J.H. van den; Verhoeven, Jos T. A.

doi:10.1007/s00267-014-0392-x

Cited by 21 publications

(12 citation statements)

References 24 publications

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“…An empirical pre-test was used to find perceived preferences of map presentations. A site was selected from a previously studied area Brouns et al 2014). The key issue in the region is the trade-off between the prevention of soil subsidence and the conservation of agricultural production.…”

Section: Pre-testmentioning

confidence: 99%

Comparison of Geodesign Tools to Communicate Stakeholder Values

Eikelboom

Janssen

2015

Group Decis Negot

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Geodesign tools are increasingly used in collaborative planning. An important element in these tools is the communication of stakeholder values. As there are many ways to present these values it is important to know how these tools should be designed to communicate these values effectively. The objective of this study is to analyse how the design of the tool influences its effectiveness. To do this stakeholder values were included in four different geodesign tools, using different ways of ranking and aggregation. The communication performances of these tools were evaluated in an online survey to assess their ability to communicate information effectively. The survey assessed how complexity influence user performance. Performance was considered high if a user is able to complete an assignment correctly using the information presented. Knowledge on tool performance is important for selecting the right tool use and for tool design. The survey showed that tools should be as simple as possible. Adding ranking and aggregation steps makes the tools more difficult to understand and reduces performance. However, an increase in the amount of information to be processed by the user also has a negative effect on performance. Ranking and aggregation steps may be needed to limit this amount. This calls for careful tailoring of the tool to the task to be performed. For all tools it was found maybe the most important characteristic of the tools is that they allow for trial and error as this increases the opportunity for experimentation and learning by doing.

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Section: Pre-testmentioning

confidence: 99%

Comparison of Geodesign Tools to Communicate Stakeholder Values

Eikelboom

Janssen

2015

Group Decis Negot

Self Cite

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“…Worldwide, in agricultural peatlands-or Histosols (Soil Survey Staff, 1999) or organic soils (Canadian Agricultural Services Coordinating Committee, 1998)-subsidence (Aich et al, 2013;Brouns et al, 2015;Dawson et al, 2010;Hooi-from 1.0 to 5.0 cm yr −1 (Ilnicki, 2003). In addition to peat decay, water and wind erosion can significantly accelerate the disappearance of cultivated peatlands, causing surface soil losses of similar magnitude (1.0-2.0 cm yr −1 ) (Cumming, 2018;Deverel & Leighton, 2010;Parent et al, 1982).…”

Section: Introductionmentioning

confidence: 99%

Agricultural peatlands conservation: How does the addition of plant biomass and copper affect soil fertility?

Bourdon

Fortin

Dessureault‐Rompré

et al. 2021

Soil Science Soc of Amer J

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Subsidence, erosion, and degradation in agricultural peatlands are leading to the disappearance of highly fertile farmland. This study investigated two strategies aimed at extending the lifespan of cultivated peat soils: the application of straw and wood chips to compensate for soil losses and the application of copper (Cu) to slow peat decomposition, based on previous recommendations. Peat soil samples (270 g) were amended with 11 t ha -1 of biomass materials (14.8 g kg -1 ) and 235.6 mg Cu kg -1 and incubated in glass jars at constant temperature and water content. Thirty chemical parameters were then monitored over a 56-d period through repeated soil sampling. Discriminant analysis showed that the addition of biomass had the greatest affect on nitrogen (N) availability, immobilizing 7.8 to 12.1 kg of inorganic N per metric ton of incorporated biomass. Considering that peat soils may require from 4 to 40 t biomass ha -1 yr -1 to reach carbon equilibrium, the tested biomass materials could immobilize from 34 to 500 kg ha -1 of N if confirmed at the field scale. This may help capture excess N but may also limit crop growth. Alternatively, slowing decomposition could reduce both biomass requirements and N immobilization. However, the results show that Cu had little effect on parameters linked to organic matter decomposition. Indeed, dissolved organic carbon was decreased by 11% in Cu-treated soils. A longer-term study should be conducted to confirm these observations at the field scale, thus helping to develop conservation strategies suitable for agricultural production.

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“…(2) The average lowest summer GWT (GLG) is assumed to be a major control factor of subsidence rates of peat surface elevation and henceforth CO 2 emissions based on the first assumption above (Arets et al, 2020). As a consequence of both assumptions, Dutch climate mitigation frameworks focus on elevating summer GWT in peatlands rather than mean annual GWT (Querner et al, 2012;Brouns et al, 2015). Dutch water and land authorities expect that increasing the average lowest summer GWT by 20 cm would result in an emission reduction equalling 10.5 t CO 2 ha −1 yr −1 (Van den Akker et al, 2007;Brouns et al, 2015;Van den Born et al, 2016).…”

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Conventional subsoil irrigation techniques do not lower carbon emissions from drained peat meadows

et al. 2021

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Abstract. The focus of current water management in drained peatlands is to facilitate optimal drainage, which has led to soil subsidence and a strong increase in greenhouse gas (GHG) emissions. The Dutch land and water authorities proposed the application of subsoil irrigation (SSI) system on a large scale to potentially reduce GHG emissions, while maintaining high biomass production. Based on model results, the expectation was that SSI would reduce peat decomposition in summer by preventing groundwater tables (GWTs) from dropping below −60 cm. In 2017–2018, we evaluated the effects of SSI on GHG emissions (CO2, CH4, N2O) for four dairy farms on drained peat meadows in the Netherlands. Each farm had a treatment site with SSI installation and a control site drained only by ditches (ditch water level −60 / −90 cm, 100 m distance between ditches). The SSI system consisted of perforated pipes −70 cm from surface level with spacing of 5–6 m to improve drainage during winter–spring and irrigation in summer. GHG emissions were measured using closed chambers every 2–4 weeks for CO2, CH4 and N2O. Measured ecosystem respiration (Reco) only showed a small difference between SSI and control sites when the GWT of SSI sites were substantially higher than the control site (> 20 cm difference). Over all years and locations, however, there was no significant difference found, despite the 6–18 cm higher GWT in summer and 1–20 cm lower GWT in wet conditions at SSI sites. Differences in mean annual GWT remained low (< 5 cm). Direct comparison of measured N2O and CH4 fluxes between SSI and control sites did not show any significant differences. CO2 fluxes varied according to temperature and management events, while differences between control and SSI sites remained small. Therefore, there was no difference between the annual gap-filled net ecosystem exchange (NEE) of the SSI and control sites. The net ecosystem carbon balance (NECB) was on average 40 and 30 t CO2 ha−1 yr−1 in 2017 and 2018 on the SSI sites and 38 and 34 t CO2 ha−1 yr−1 in 2017 and 2018 on the control sites. This lack of SSI effect is probably because the GWT increase remains limited to deeper soil layers (60–120 cm depth), which contribute little to peat oxidation. We conclude that SSI modulates water table dynamics but fails to lower annual carbon emission. SSI seems unsuitable as a climate mitigation strategy. Future research should focus on potential effects of GWT manipulation in the uppermost organic layers (−30 cm and higher) on GHG emissions from drained peatlands.

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Spatial Analysis of Soil Subsidence in Peat Meadow Areas in Friesland in Relation to Land and Water Management, Climate Change, and Adaptation

Cited by 21 publications

References 24 publications

Comparison of Geodesign Tools to Communicate Stakeholder Values

Comparison of Geodesign Tools to Communicate Stakeholder Values

Agricultural peatlands conservation: How does the addition of plant biomass and copper affect soil fertility?

Conventional subsoil irrigation techniques do not lower carbon emissions from drained peat meadows

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