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- Volume 6, Issue 1, 2021
Tijdschrift voor Historische Geografie - Volume 6, Issue 1, 2021
Volume 6, Issue 1, 2021
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Delfland in 1200. Een gereconstrueerde hoogtekaart
Door Cor NonhofAbstractDelfland in 1200. A reconstructed elevation map
In this study, a proxy is presented for the height of the land above sea level in the past. The height is calculated for the area of the Hoogheemraadschap (water board) of Delfland in the year 1200, based on the changes in the water table in the polders over time. Since 1865, this water table is presented in the Waterschapskaart of the Netherlands, which has seen f ive updates and is now replaced by maps of the individual water boards. These six measurements over a period of 155 years are used to calculate the rate of subsidence of the soil. Together with the present height of the water table above sea level, it is possible to extrapolate back in time to the year 1200. Such an extrapolation well outside the measurement area must be regarded with caution and the quantitative results are compared with expectations based on known geophysical processes in peat and clay soils and the history of the area. The calculated relief in 1200 matches with the expectancies based on the geographical survey of the area. As expected, the f irst dykes along the estuary were merely ment to ward off extreme high water in the summertime when wheat had to be protected against salt water. The clay soils are calculated to lay extremely f lat from the river to 20 kilometre inland. This allows for the observed linear flow of the rivers. According to the calculation, the height of the land above sea level is such that storm surges are expected to reach inland on only rare occasions. This is substantiated by the observation that farms are built on platforms of only a few decimetres in height.
The method has proved its worth for an area the size of Delfland, where statistically significant results may be obtained due to the number of measurements. However, for results on a smaller scale the method is not sensitive enough.
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Beulake
Door Linde StokvisAbstractThe lost peat-dredgers village of Beulake
Between 1600 and 1800, Beulake was a peat-dredging village of reasonable size. Peat dredging was profitable but caused permanent land loss and flooding. During the f irst half of the 18th century, peat-dredging seems to have brought some prosperity, but then a decline set in. The village eventually disappeared due to two severe storms in 1775 and 1776. This article examines the spatial structure of the former village and the socioeconomic conditions of its residents.
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Bouwlandschappen
Door Erik SchmitzAbstractBuilding landscapes
A drawing by artist Jan Hoynck van Papendrecht (1858-1933) can be understood as a view of the f irst buildings along Amsterdam’s Van Eeghenstraat, as seen from his rear window. The late 19th-century method of raising polder meadows for urban expansion is also clearly visible on a hitherto mislocated drawing by Gerrit Haverkamp (1872-1926) of a building site in Amsterdam Oud-West. The chronological development of raising building sites can still be acknowledged from height differences in Amsterdams urban fabric. Building landscapes are rather underexposed in Dutch historical geography as a seemingly temporary situation. However, they are an intrinsic and sometimes longer-lasting part of the landscape’s biography and deserve more attention than they have received until now.
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