Management options for restoring estuarine dynamics and implications for ecosystems: A quantitative approach for the Southwest Delta in the Netherlands

Almost all peatlands in the Netherlands are drained for agricultural purposes or in the past for peat extraction. What remains is a peatland area of about 300.000 ha of which 85 % is used for agriculture. As a result of peat oxidation, these areas are still subsiding by about 1 cm per year. Another effect is the enormous emission of CO2, which contributes to about 4% of total Dutch greenhouse gas emissions. With the awareness of a changing climate and the need for protection against flooding of coastal areas, solutions are being searched to reduce or stop peat oxidation and coinciding land subsidence and CO2 emission.In this presentation we will show four different management options which are currently being tested in the Netherlands. These options all focus on increasing the groundwater table to lower oxygen intrusion and consequently lower aerobic decomposition. Depending on crop choices water levels may need to stay 40 cm below the surface to maximize fodder plant yields. We expect a trade-off between land-use intensity (yields) and CO2 emission reduction. The management options range from maintaining the current land-use by elevating summer water levels with submerged drainage pipes to the development of peat-forming plant species by complete rewetting. Data of the effects of these management options on CO2 emission will be shown and with that the effectiveness of reducing peat oxidation.

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Alternative water management options to reduce vulnerability for climate change in the Netherlands

Natural Hazards ◽

10.1007/s11069-007-9184-4 ◽

2007 ◽

Vol 51 (3) ◽

pp. 407-422 ◽

Cited By ~ 19

Author(s):

Rutger de Graaf ◽

Nick van de Giesen ◽

Frans van de Ven

Keyword(s):

Climate Change ◽

Water Management ◽

The Netherlands ◽

Management Options ◽

Alternative Water

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Which management option has the highest greenhouse gas reduction potential for drained peatlands?

10.5194/egusphere-egu21-8175 ◽

2021 ◽

Author(s):

Merit van den Berg ◽

Christian Fritz ◽

Bas van de Riet ◽

Stefan Weideveld ◽

Thomas Gremmen ◽

...

Keyword(s):

The Netherlands ◽

Greenhouse Gas ◽

Greenhouse Gas Emission ◽

C Sequestration ◽

Water Levels ◽

Ecosystem Functions ◽

Management Options ◽

Plant Yields ◽

Oxygen Intrusion ◽

Almost All

Almost all peatlands in the Netherlands are drained for agricultural purposes or in the past for peat extraction. What remains is a peatland area of about 300.000 ha of which 85 % is used for agriculture. As a result of peat oxidation, these areas are still subsiding by about 1 cm per year. Another effect is the enormous emission of CO2, which contributes to about 4% of total Dutch greenhouse gas emissions. With the awareness of a changing climate and the need for protection against flooding of coastal areas, solutions are being searched to reduce or stop peat oxidation and coinciding land subsidence and CO2 emission.In this presentation we will show different management options (subsoil irrigation, pressurized subsoil irrigation, paludiculture) which are currently being tested in the Netherlands. They will be put into perspective of data from other European studies. These options all focus on increasing the groundwater table to lower oxygen intrusion and consequently lower aerobic decomposition. Depending on crop choices, water levels may need to stay 40 cm below the surface to maximize fodder plant yields, or go to surface level to increase peat ecosystem functions like C-sequestration. The management options range from maintaining the current land-use by elevating summer water levels, with submerged drainage, to the development of peat-forming plant species by complete rewetting. Data of the effects of these management options on CO2 emission show that Sphagnum farming is the most promising mitigation option to reduce greenhouse gas emission from drained peatlands. It turned the land from a carbon and greenhouse gas source into a sink.

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Anesthesia Patient Risk: A Quantitative Approach to Organizational Factors and Risk Management Options

Risk Analysis ◽

10.1111/j.1539-6924.1997.tb00892.x ◽

1997 ◽

Vol 17 (4) ◽

pp. 511-523 ◽

Cited By ~ 29

Author(s):

M. Elisabeth Pate-Cornell ◽

Linda M. Lakats ◽

Dean M. Murphy ◽

David M. Gaba

Keyword(s):

Risk Management ◽

Organizational Factors ◽

Quantitative Approach ◽

Management Options ◽

Patient Risk

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From nature conservation towards restoration of estuarine dynamics in the heavily modified Rhine-Meuse estuary, The Netherlands.

Large Rivers ◽

10.1127/lr/15/2003/305 ◽

2003 ◽

Vol 15 (1-4) ◽

pp. 305-318 ◽

Cited By ~ 1

Author(s):

C. Storm ◽

J. A. van der Velden ◽

J. W. M. Kuijpers

Keyword(s):

Nature Conservation ◽

The Netherlands ◽

Estuarine Dynamics

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Analysis of population development and effectiveness of management in resident greylag geese Anser anser in the Netherlands

Animal Biology ◽

10.1163/157075610x523260 ◽

2010 ◽

Vol 60 (4) ◽

pp. 373-393 ◽

Cited By ~ 9

Author(s):

Chris van Turnhout ◽

Chris Klok ◽

Frank Willems ◽

Bart Ebbinge ◽

Berend Voslamber ◽

...

Keyword(s):

Life History ◽

The Netherlands ◽

Density Dependence ◽

Management Tool ◽

Population Development ◽

Dutch Population ◽

Management Options ◽

History Data ◽

Density Dependent ◽

Life History Data

AbstractThe resident Greylag goose population in the Netherlands has strongly increased in number which led to conflict with agricultural interests, public concern on goose hunting and legal debate on the need to regulate geese. Such a debate can be facilitated by insight in population development and the effectiveness of management options. In this paper we analyse the historic population development and apply density independent and density dependent models to investigate possible future population development and the impact of management on this development. We explored the influence of density dependence by applying the amount of gosling rearing habitat as the first limiting factor. The models were parameterised with life-history data of two well studied populations during their exponential growth phase as a proxy for the total Dutch population for which life-history data are unavailable. The effectiveness of two management options aimed to reduce population growth: culling birds and egg reduction are assessed with these models. The developed models can be used as a management tool to evaluate the consequences of different measures in advance of their implementation. The results show significant positive growth rates which approximate the growth rate of the total Dutch population based on census data. With density dependence in the amount of gosling rearing habitat the population will grow for another one or two decades before it stabilizes. Of the two considered management options culling birds is more effective in reducing bird numbers than egg reduction. This conclusion holds both under density independent and density dependent conditions.

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