Relationship between groundwater levels and oxygen availability in fen peat soils

Dickopp, Jan; Lengerer, Andreas; Kazda, Marian

doi:10.1016/j.ecoleng.2018.05.033

Cited by 6 publications

(4 citation statements)

References 30 publications

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“…In peatlands, the decomposition of organic matter is controlled by oxygen (O 2 ) availability and diffusivity as related to hydrological regime, with much impact on the levels of emission of greenhouse gases from peatlands to the atmosphere (Elberling et al 2011;Yvon-Durocher et al 2014;Dickopp, Lengerer, and Kazda 2018). See aerobic and anaerobic decomposition in Figure 1.…”

Section: Effects Of Water Level Alteration On Organic Matter Decomposmentioning

confidence: 99%

Effects of water level alteration on carbon cycling in peatlands

Zhong

Jiang

Middleton

2020

Ecosyst Health Sustain

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Globally, peatlands play an important role in the carbon (C) cycle. High water level is a key factor in maintaining C storage in peatlands, but water levels are vulnerable to climate change and anthropogenic disturbance. This review examines literature related to the effects of water level alteration on C cycling in peatlands to summarize new ideas and uncertainties emerging in this field. Peatland ecosystems maintain their function by altering plant community structure to adapt to changing water levels. Regarding primary production, woody plants are more productive in unflooded, well-aerated conditions, while Sphagnum mosses are more productive in wetter conditions. The responses of sedges to water level alteration are species-specific. While peat decomposition is faster in unflooded, well aerated conditions, increased plant production may counteract the C loss induced by increased ecosystem respiration (ER) for a period of time. In contrast, rising water table maintains anaerobic conditions and enhances the role of the peatland as a C sink. Nevertheless, changes in DOC flux during water level fluctuation is complicated and depends on the interactions of flooding with environment. Notably, vegetation also plays a role in C flux but particular species vary in their ability to sequester and transport C. Bog ecosystems have a greater resilience to water level alteration than fens, due to differences in biogeochemical responses to hydrology. The full understanding of the role of peatlands in global C cycling deserves much more study due to uncertainties of vegetation feedbacks, peat-water interactions, microbial mediation of vegetation, wildfire, and functional responses after hydrologic restoration.

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Section: Effects Of Water Level Alteration On Organic Matter Decomposmentioning

confidence: 99%

Effects of water level alteration on carbon cycling in peatlands

Zhong

Jiang

Middleton

2020

Ecosyst Health Sustain

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“… 14 Oxygen concentration in the soil profile could be strongly controlled by the changing WTD over time and then the level of redox potential could be changed consequently, which could affect the GHG emissions. 19 , 21 , 34 , 38 Flooding of wetlands enhances anaerobic conditions as air spaces in the soil fill with water, inhibiting the transport of oxygen from the soil to the rhizosphere zone and limiting aerobic microbial activity, ultimately reducing CO 2 emissions. 2 , 29 , 39 These emissions are further reduced by toxic byproducts that accumulate under anoxic conditions and limit microbial growth and activity.…”

Section: Discussionmentioning

confidence: 99%

“…In wetlands, the decomposition of organic matter is intricately linked to the availability and diffusivity of oxygen (O 2 ), influenced by the hydrological regime, significantly affecting GHG emissions into the atmosphere. 14 , 18 , 19 O 2 diffusion in water occurs approximately 10 4 times slower than in air. 20 Consequently, an increased water table depth (WTD) leads to a rapid increase in oxygen within wetlands, promoting aerobic decomposition of litter, and subsequently raising CO 2 emissions.…”

Section: Introductionmentioning

confidence: 97%

An optimized water table depth detected for mitigating global warming potential of greenhouse gas emissions in wetland of Qinghai-Tibetan Plateau

Zhang,

Chen,

Wang

et al. 2024

iScience

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“…Granner et al (2003) said that carbohydrates contained in carriers were used by bacteria as the main source in energy-producing metabolism for bacteria and as build blocks of cells. Dickopp et al (2018) said that the used of a carrier from peat can also provide an environmental support capacity for bacterial breed, because peat has a high water-holding capacity and creates moisture in the carrier. The ANOVA with a confidence level of 95% (Table 3) showed that carrier treatment, bacterial treatment and the interaction between carrier and bacterial treatments had no significant effect on the total fungal contaminants.…”

Section: Total Bacteriamentioning

confidence: 99%

Viability of Agrobacterium sp. I26 and Agrobacterium sp. I30 in The Carrier Formula of Mocaf Solid Waste, Peat and Manure

Rosariastuti

Sabilla²,

Sudadi³

et al. 2023

ENVIRO

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Agrobacterium sp. I26 and Agrobacterium sp. I30 are bioremediation agent that can be used as functional bacteria in biofertilizers. The storage of these bacteria requires carrier. Not all carriers can support bacterial viability, so it was necessary to examine carrier formulas as basic ingredients for biofertilizers which the quality standards based on the Minister of Agriculture Regulation No. 70/2011. This research aimed to: (1) study the viability of Agrobacterium sp. I26 and Agrobacterium sp. I30 in some carrier formulas; and (2) obtain the best carrier formula to support the viability of Agrobacterium sp. I26 and Agrobacterium sp. I30. Research design was factorial using completely randomized design (CRD) as the based design, consisting of 2 factors: 1) Carrier Fornula (C): C1; C2; C3; C4; C5, 2) Bacteria (I): I1; I2; I3, so there were 15 treatment combinations each was repeated 4 times, thus there were 60 experimental units. The results showed that Agrobacterium sp. I26 has better viability than Agrobacterium sp. I30 during 90 days incubation period. The best bacterial viability with total bacterial as the indicator was C4 carrier formula: 74 x 1013 cfu.g-1 for Agrobacterium sp. I26 and C3 carrier formula: 155 x 1012 cfu.g-1.

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Relationship between groundwater levels and oxygen availability in fen peat soils

Cited by 6 publications

References 30 publications

Effects of water level alteration on carbon cycling in peatlands

Effects of water level alteration on carbon cycling in peatlands

An optimized water table depth detected for mitigating global warming potential of greenhouse gas emissions in wetland of Qinghai-Tibetan Plateau

Viability of Agrobacterium sp. I26 and Agrobacterium sp. I30 in The Carrier Formula of Mocaf Solid Waste, Peat and Manure

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