Hydrogeological Modelling for the Development of Raised Bog Conservation and Restoration Projects

The aim of this study is to determine the Cu(II) complexing capacity and stability constants of Cu(II) complexes of humic acids isolated from two well-characterized raised bog peat profiles in respect to the basic properties and humification characteristics of the studied peats and their humic acids. The complex stability constants significantly change within the studied bog profiles and are well correlated with the age and decomposition degree of the peat layer from which the humic acids have been isolated. Among factors that influence this complexation process, molecular mass and ability to form micellar structures (supramolecules) of humic substances are of key importance.

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Petalomonas sphagnophila (Euglenophyta, Petalomonadales), a new euglenophyte species for Russia

Novosti sistematiki nizshikh rastenii ◽

10.31111/nsnr/2016.50.112 ◽

2016 ◽

Vol 50 ◽

pp. 112-119

Author(s):

D. A. Kapustin ◽

D. A. Philippov ◽

I. V. Sokolova ◽

E. S. Gusev

Keyword(s):

Light Microscopy ◽

Original Publication ◽

Raised Bog ◽

Vologda Region ◽

First Time

Petalomonas sphagnophila has been found for the first time in Russia from the Shichengskoe raised bog (Vologda Region). Morphology of the species is studied by means of light microscopy and illustrated by original micrographs. The data on its taxonomy, ecology and distribution are given. The name P. sphagnophila was not validly published because no type was indicated in the original publication (Christen, 1962), so we are validating the name by indicating its holotype. P. polytaphrena Skuja, nom. inval. is treated as a synonym of P. sphagnophila. Currently, thirty species of the genus Petalomonas, including P. sphagnophila, are known from Russia.

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How to Assess the Ecological Status of Highly Humic Lakes? Development of a New Method Based on Benthic Invertebrates

Water ◽

10.3390/w13020223 ◽

2021 ◽

Vol 13 (2) ◽

pp. 223

Author(s):

Dāvis Ozoliņš ◽

Agnija Skuja ◽

Jolanta Jēkabsone ◽

Ilga Kokorite ◽

Andris Avotins ◽

...

Keyword(s):

Ecological Status ◽

Working Party ◽

Nutrient Content ◽

Humic Lakes ◽

Raised Bog ◽

Raised Bogs ◽

Taxa Richness ◽

Bog Lakes ◽

Status Assessment

Highly humic lakes are typical for the boreal zone. These unique ecosystems are characterised as relatively undisturbed habitats with brown water, high acidity, low nutrient content and lack of macrophytes. Current lake assessment methods are not appropriate for ecological assessment of highly humic lakes because of their unique properties and differing human pressures acting on these ecosystems. This study proposes a new approach suitable for the ecological status assessment of highly humic lakes impacted by hydrological modifications. Altogether, 52 macroinvertebrate samples from 15 raised bog lakes were used to develop the method. The studied lakes are located in the raised bogs at the central and eastern parts of Latvia. Altered water level was found as the main threat to the humic lake habitats since no other pressures were established. A multimetric index based on macroinvertebrate abundance, littoral and profundal preferences, Coleoptera taxa richness and the Biological Monitoring Working Party (BMWP) Score is suggested as the most suitable tool to assess the ecological quality of the highly humic lakes.

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Properties and structure of raised bog peat humic acids

Journal of Molecular Structure ◽

10.1016/j.molstruc.2013.07.021 ◽

2013 ◽

Vol 1050 ◽

pp. 103-113 ◽

Cited By ~ 25

Author(s):

Maris Klavins ◽

Oskars Purmalis

Keyword(s):

Humic Acids ◽

Raised Bog

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Later Bronze Age Activity in the Somerset Levels

The Antiquaries Journal ◽

10.1017/s0003581500021065 ◽

1972 ◽

Vol 52 (2) ◽

pp. 269-275 ◽

Cited By ~ 1

Author(s):

John M. Coles

Keyword(s):

Bronze Age ◽

Human Activity ◽

Sixth Century ◽

Third Century ◽

Raised Bog ◽

First Millennium ◽

Relationship Of ◽

The Relationship

SummaryThe evidence of human activity in the Somerset Levels in the first millennium B.C. consists of wooden trackways laid across areas of developing raised bog, and joining small settlements on the higher, drier lands of the Poldens and the Wedmore ridge. The excavation of one of these tracks, of the sixth century B.C., is described. Stray finds of weapons and tools continue to be made by peat-cutters and by archaeologists; the most recent of these finds are a hazelwood peg or truncheon, and a sycamore tent peg, of the fourth or third century B.C. The relationship of the trackways and other finds to the marshside villages at Meare remains to be established.

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Comment on "Soil CO2, CH4 and N2O fluxes from an afforested lowland raised peat bog in Scotland: implications for drainage and restoration" by Yamulki et al. (2013)

Biogeosciences ◽

10.5194/bg-10-7623-2013 ◽

2013 ◽

Vol 10 (11) ◽

pp. 7623-7630 ◽

Cited By ~ 3

Author(s):

R. R. E. Artz ◽

S. J. Chapman ◽

M. Saunders ◽

C. D. Evans ◽

R. B. Matthews

Keyword(s):

Carbon Dioxide ◽

Nitrous Oxide ◽

Ghg Emissions ◽

Peat Bog ◽

Raised Bog ◽

Land Use Conversion ◽

Peatland Restoration ◽

Carbon Dioxide Equivalents ◽

Carbon Dioxide Co2 ◽

Chamber Measurements

Abstract. Yamulki and co-authors address in their recent publication the important issue of net emissions of greenhouse gases (GHGs) from peatlands where land use conversion has taken place. In their case, they studied conversion to forestry versus peatland restoration after a first rotation of plantation forestry. They monitored soil-derived fluxes of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) using opaque chamber measurements on planted and unplanted control treatments (with or without drainage), and an unplanted plot within a restored (felled) block on former lowland raised bog. They propose that their measurements of greenhouse gas (GHG) emissions at these sites suggest that the total net GHG emissions, in 100 yr carbon dioxide equivalents, of the restored peat bog would be higher than that of the peat bog with trees. We believe there are a number of issues with the measurement, calculation and comparison of these greenhouse budgets that may invalidate this conclusion.

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Ecology of moss-dwelling rotifers in a raised bog: Differentiation of rotifer communities in microhabitats

Biologia ◽

10.1515/biolog-2017-0014 ◽

2017 ◽

Vol 72 (2) ◽

Cited By ~ 1

Author(s):

Irena Bielańska-Grajner ◽

Tomasz Mieczan ◽

Anna Cieplok

Keyword(s):

Species Richness ◽

Moisture Content ◽

Dominant Species ◽

Peat Bogs ◽

Raised Bog ◽

Ecological Relationships ◽

Seasonal Factors ◽

The Stability ◽

Endangered Ecosystems ◽

Rotifer Communities

AbstractPeat bogs play key roles in preserving the stability of ecological relationships, but are some of the fastest disappearing and most endangered ecosystems in Europe. The aims of this study were: (1) to compare the distribution, species richness, diversity, and density of rotifers in microhabitats of a raised bog; and (2) to verify the hypothesis that rotifer density and species composition are dependent on seasonal factors, moss moisture content, and the dominant species of mosses in the microhabitats. Sampling was done monthly from April to November in 2013–2014 in the bog Moszne in eastern Poland (51°27′28.7″ N, 23°07′15.8″ E). The microhabitats sampled included hummocks, slopes, and hollows. A total of 40 rotifer taxa were identified. The highest species richness occurred in the hollows (40), dominated by

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