A palaeoecological study of a hummock-hollow complex from engbertsdijksveen, in the Netherlands

Molen, P.C. van der; Hoekstra, S.P.

doi:10.1016/0034-6667(88)90060-7

Cited by 30 publications

(6 citation statements)

References 28 publications

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“…The degree of deforestation was used as a proxy for human pressure on the vegetation and hence on the landscape. The relative amount of deforested area was derived from the arboreal pollen percentages (AP% values) in existing well-dated and detailed pollen diagrams from point locations per sand area: Mekelermeer ( Figure 3 ; Bohncke, 1991 ), Engbertdijksveen ( Figure 4 ; Van der Molen and Hoekstra, 1988 ), Uddelermeer ( Figure 5 ; Engels et al., 2016 ; Gouw-Bouman, unpublished data) and Berkenhof ( Figure 6 ; Teunissen, 1990 ). For more details on these records and how their AP% values were converted to degree of deforestation, we refer to Appendix A2 , available online.…”

Section: Methodsmentioning

confidence: 99%

Controls on late-Holocene drift-sand dynamics: The dominant role of human pressure in the Netherlands

et al. 2018

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Holocene drift-sand activity in the northwest European sand belt is commonly directly linked to population pressure (agricultural activity) or to climate change (e.g. storminess). In the Pleistocene sand areas of the Netherlands, small-scale Holocene drift-sand activity began in the Mesolithic, whereas large-scale sand drifting started during the Middle Ages. This last phase not only coincides with the intensification of farming and demographic pressure but also is commonly associated with a colder climate and enhanced storminess. This raises the question to what extent drift-sand activity can be attributed to either human activities or natural forcing factors. In this study, we compare the spatial and temporal patterns of drift-sand occurrence for the four characteristic Pleistocene sand regions in the Netherlands for the period between 1000 BC and AD 1700. To this end, we compiled a new supra-regional overview of drift-sand activity based on age estimates (14C, optically stimulated luminescence (OSL), archaeological and historical ages). The occurrence of sand drifting was then compared in time and space with historical-route networks, relative vegetation openness and climate. Results indicate a constant but low drift-sand activity between 1000 BC and AD 1000, interrupted by a remarkable decrease in activity around the BC/AD transition. It is evident that human pressure on the landscape was most influential on initiating sand drifting: this is supported by more frequent occurrences close to routes and the uninterrupted increase of drift-sand activity from AD 900 onwards, a period of high population density and large-scale deforestation. Once triggered by human activities, this drift-sand development was probably further intensified several centuries later during the cold and stormier ‘Little Ice Age’ (LIA; AD 1570–1850).

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Section: Methodsmentioning

confidence: 99%

Controls on late-Holocene drift-sand dynamics: The dominant role of human pressure in the Netherlands

et al. 2018

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“…In such circumstances one would expect the thickness and age of layers of peat in neighbouring peat columns to be different. Such differences are evident in real peatlands (Barber, 1981; van der Molen and Hoekstra, 1988; Kettridge et al , 2008).…”

Section: The Hydrological Submodelmentioning

confidence: 98%

The DigiBog peatland development model 1: rationale, conceptual model, and hydrological basis

2011

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Using a literature review, we argue that new models of peatland development are needed. Many existing models do not account for potentially important ecohydrological feedbacks, and/or ignore spatial structure and heterogeneity. Existing models, including those that simulate a near total loss of the northern peatland carbon store under a warming climate, may produce misleading results because they rely upon oversimplified representations of ecological and hydrological processes. In this, the first of a pair of papers, we present the conceptual framework for a model of peatland development, DigiBog, which considers peatlands as complex adaptive systems. DigiBog accounts for the interactions between the processes which govern litter production and peat decay, peat soil hydraulic properties, and peatland water‐table behaviour, in a novel and genuinely ecohydrological manner. DigiBog consists of a number of interacting submodels, each representing a different aspect of peatland ecohydrology. Here we present in detail the mathematical and computational basis, as well as the implementation and testing, of the hydrological submodel. Remaining submodels are described and analysed in the accompanying paper. Tests of the hydrological submodel against analytical solutions for simple aquifers were highly successful: the greatest deviation between DigiBog and the analytical solutions was 2·83%. We also applied the hydrological submodel to irregularly shaped aquifers with heterogeneous hydraulic properties—situations for which no analytical solutions exist—and found the model's outputs to be plausible. Copyright © 2011 John Wiley & Sons, Ltd.

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“…Van der Molen and Hoekstra 1988;Van Geel 1978;Van Geel et al 1984). Van der Molen and Hoekstra 1988;Van Geel 1978;Van Geel et al 1984).…”

Section: Introductionunclassified

Reconstruction of the vegetation at A.D. 915 at Ohse-yachi Mire, northern Japan, from pollen, present-day vegetation and tephra data

Yonebayashi

1996

Vegetatio

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The Towada-a (To-a) Tephra from A.D. 915 allowed reconstruction of the local and regional vegetation at and near Ohse-yachi Mire from pollen samples taken just below the tephra. In earlier studies the tephra was dated from ~4C data, stratigraphy at archaeological sites and a historical record. Twelve cores along two perpendicular transects yielded pollen from modern and pre-tephra samples. The modern pollen data were compared with the modern vegetation, and used to interpret the pollen data from A.D. 915. Ericaceae, Drosera, Sanguisorba, other Rosaceae, and Sphagnum were concluded to be local elements. Ohse-yachi Mire was a wet Sphagnum bog in A.D. 915, with Sphagnum dominating the central part of the mire. The present stand of scrub was not yet established, but there was a stand of Pinus pumila scrub. The bog subsequently became drier and changed to the present-day mixed Moliniopsis-Sphagnum bog.

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A palaeoecological study of a hummock-hollow complex from engbertsdijksveen, in the Netherlands

Cited by 30 publications

References 28 publications

Controls on late-Holocene drift-sand dynamics: The dominant role of human pressure in the Netherlands

Controls on late-Holocene drift-sand dynamics: The dominant role of human pressure in the Netherlands

The DigiBog peatland development model 1: rationale, conceptual model, and hydrological basis

Reconstruction of the vegetation at A.D. 915 at Ohse-yachi Mire, northern Japan, from pollen, present-day vegetation and tephra data

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