Sediment cores from kettle holes in NE Germany reveal recent impacts of agriculture

Kleeberg, Andreas; Neyen, Marielle; Schkade, Uwe‐Karsten; Kalettka, Thomas; Lischeid, Gunnar

doi:10.1007/s11356-015-5989-y

Cited by 32 publications

(22 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sedimentation rates previously estimated from two KH that are part of the present study (KH258 and KH807; Kleeberg et al, 2016) correspond to an average age of 15-30 years prior to this study in the upper 5 cm and to 50-100 years at 20 cm depth. These values are in line with previous studies in the area, which concluded that the sedimentation rate increased from 1-2 mm y -1 prior to 1960, to 5 mm y -1 afterwards (Frielinghaus and Vahrson 1998).…”

Section: Land-use Effects On Biodiversity In Sedimentsmentioning

confidence: 54%

“…Therefore, the sediment eDNA could well reflect community changes triggered by intensified agriculture. The separate clustering of eukaryotic phytoplankton from the upper and lower sediment, further suggests a recent change in communities in the last 20-30 years as dated by Kleeberg et al (2016). Coupling thin-layer sediment eDNA analysis with sediment dating in a large number of KH are needed to reinforce this tentative conclusion.…”

Section: Land-use Effects On Biodiversity In Sedimentsmentioning

confidence: 96%

See 1 more Smart Citation

From microbes to mammals: pond biodiversity homogenization across different land-use types in an agricultural landscape

Ionescu

Bižić

Karnatak

et al. 2022

Preprint

View full text Add to dashboard Cite

Local biodiversity patterns are expected to strongly reflect variation in topography, land use, dispersal boundaries, nutrient supplies, contaminant spread, management practices and other anthropogenic influences. In contrast, studies focusing on specific taxa revealed a biodiversity homogenization effect in areas subjected to long-term intensive industrial agriculture. We investigated whether land use affects biodiversity and metacommunity structure in 67 kettle holes (KH) representing small aquatic islands embedded in the patchwork matrix of a largely agricultural landscape comprising grassland, forest, and arable fields. These KH, similar to millions of standing water bodies of glacial origin, spread across northern Europe, Asia, and North America, are physico-chemically diverse, differ in the degree of coupling with their surroundings. We assessed biodiversity patterns of eukaryotes, Bacteria and Archaea in relation to environmental features of the KH, using deep-amplicon-sequencing of eDNA. First, we asked whether deep sequencing of eDNA provides a representative picture of KH biodiversity across the three domains of life. Second, we investigated if and to what extent KH biodiversity is influenced by the surrounding land-use. Our data shows that deep eDNA amplicon sequencing is useful for in-depth assessments of cross-domain biodiversity comprising both micro- and macro-organisms, but, has limitations with respect to single-taxa conservation studies. Using this broad method, we show that sediment eDNA, integrating several years to decades, depicts the history of agricultural land-use intensification. The latter, coupled with landscape wide nutrient enrichment (including by atmospheric deposition), groundwater connectivity between KH and organismal movement in the tight network of ponds, resulted in a biodiversity homogenization in the KH water, levelling off the differences in KH biodiversity between land-use types, detectable today.

show abstract

Section: Land-use Effects On Biodiversity In Sedimentsmentioning

confidence: 54%

Section: Land-use Effects On Biodiversity In Sedimentsmentioning

confidence: 96%

From microbes to mammals: pond biodiversity homogenization across different land-use types in an agricultural landscape

Ionescu

Bižić

Karnatak

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Concentrations of K + , however, were greater than typical groundwater levels, and the kettle holes with shorter hydroperiods tended to have significantly greater concentrations relative to the longer hydroperiod kettle holes. Surrounding agricultural soils, especially clay rich horizons, are hypothesized to contribute to these elevated K levels through erosion and leaching (Gerke et al, ; Kleeberg, Neyen, Schkade, Kalettka, & Lischeid, ; Merz & Steidl, ), although we cannot explain why K + is retained longer and at higher concentrations within the kettle holes. In general, land managers have long recognized the heterogeneity in solute concentration and conductivity across the landscape by planting sugar beets in areas of high conductivity (Figure S1) and cornfields at higher elevations with lower conductivity.…”

Section: Discussionmentioning

confidence: 76%

Ephemeral kettle hole water and sediment temporal and spatial dynamics within an agricultural catchment

et al. 2017

Self Cite

View full text Add to dashboard Cite

Kettle holes are glacially created ponds that form within landscape depressions and are numerous across young moraine landscapes. Kettle hole water budgets are based primarily on winter precipitation, and therefore, undergo pronounced short‐term changes in water level fluctuations. Little is known about kettle hole sediment biogeochemistry in NE Germany, especially with regards to hydroperiod. Our objective for this study was to link the abiotic influences demarked by the evaporative isotopic signal from kettle hole water and solute chemistry to sediment organic matter turnover imprinted in the sediment δ13C and δ15N isotopic values. From the 20 kettle holes we sampled, 19 of these completely dried out, but on different dates. This dynamic was partially explained by longitudinal and elevational changes over the catchment area illustrating regional controls of kettle hole water balance. At the scale of an individual kettle hole, we estimated evaporation explained up to 38% of water volume loss. The changes in water levels were weakly related to differences in surface sediment elemental N and C concentrations between kettle hole edge and centre positions. These dynamics were primarily driven by redox conditions, Ca2+, and several nutrient concentrations (dissolved organic carbon, total dissolved nitrogen, total dissolved P, and ammonium) in the water column. Although we did not detect differences in the surface sediment δ13C and δ15N values, the δ15N signature in relation to the C:N ratio highlights the advanced decomposition state of surface sediment OM in temporarily water filled kettle holes.

show abstract

“…At the slopes of the agriculturally intensively used Quillow river catchment, most of the former stratigraphic record has probably got lost, due to strong tillage activity since historic times (Sommer et al, 2008;Kleeberg et al, 2016). The only evidence of prehistoric slope processes was found in profile FKHG2, where a colluvial sand layer dated to 2466 ± 192 a.…”

Section: Late Holocene Soil Erosion In the Upper Ucker River Catchmentmentioning

confidence: 99%

Stratigraphy and age of colluvial deposits indicating Late Holocene soil erosion in northeastern Germany

Kappler

Kaiser

Tanski

et al. 2018

CATENA

View full text Add to dashboard Cite

In the focus of this study are the sedimentary characteristics, chronology, magnitude, and causes of past soil erosion dynamics of an agriculturally intensively used glacial lowland landscape. From the mesoscale Quillow river catchment, sedimentary sections bearing colluvial sediments from different landforms were analysed to explore their geoarchive potential and to establish a local chronology of Late Holocene soil erosion. Sections from footslopes contain a rather simple stratigraphy with one topping colluvial horizon of up to 1 m thickness burying a palaeosol. In contrast glacial kettle holes preserve more complex sequences partly having several colluvial layers with intercalating palaeosols. The most complex stratigraphy is associated with a kettle hole being the ultimate sediment trap for a dendritic gully system, forming a 4 m thick sequence of alternating peat and colluvial layers. Thirty OSL ages and 13 radiocarbon ages are used to reconstruct phases of soil erosion. Potentially human-induced soil erosion, which is corroborated by local archaeological and palynological data, can be traced back to the last c. 4000 years. The oldest colluvial deposits date back to the Late Bronze Age. Most datings, however, cluster within the last 600 years with a peak in the last 200 years, ascribing the main phase of local soil erosion to the recent past. Thus, although numerous archaeological finds are detected in the catchment since the Neolithic, considerable agricultural soil erosion does not occur before the last millennium. A compilation of OSL chronologies based on colluvial sediments from other regions in Central Europe shows a more complex erosion history there with a pronounced two-or three-phased distribution of ages primarily dating into the last c. 4000-5000 years. This study underlines that in northeastern Central Europe human impact on landscapes was effective apparently at a later stage as compared to some adjacent regions.

show abstract

Sediment cores from kettle holes in NE Germany reveal recent impacts of agriculture

Cited by 32 publications

References 39 publications

From microbes to mammals: pond biodiversity homogenization across different land-use types in an agricultural landscape

From microbes to mammals: pond biodiversity homogenization across different land-use types in an agricultural landscape

Ephemeral kettle hole water and sediment temporal and spatial dynamics within an agricultural catchment

Stratigraphy and age of colluvial deposits indicating Late Holocene soil erosion in northeastern Germany

Contact Info

Product

Resources

About