Descriptive Notes: On the Topography and Vegetation of Some Localities Visited
the Excursion in Denmark Arranged for the Members of LAssociation Internationale Des Botanistes, June 22nd July 3rd, 1913 by Dansk botanisk forening
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Excerpt from Descriptive Notes: On the Topography and Vegetation of Some Localities Visited by the Excursion in Denmark Arranged for the Members of Lassociation Internationale Des Botanistes, June 22nd July 3rd, 1913Moraine sand forms a great partMoreExcerpt from Descriptive Notes: On the Topography and Vegetation of Some Localities Visited by the Excursion in Denmark Arranged for the Members of Lassociation Internationale Des Botanistes, June 22nd July 3rd, 1913Moraine sand forms a great part of the surface in a girdle extending from the frontier through Central Jutland into Vendsyssel, as well as in the hill-islands in West Jutland.Stratified gravel, sand and clay frequently occur over, under and between the moraine deposits. In the islands and in East Jutland they are most commonly covered by till, in West Jutland they not only form the large heath-plains, but also appear in the surface of the hills. By far the greater part of these stratified deposits are glaciofluvial, some of them however are shown by the fossils to be interglacial. In some localities in East Jutland (e. g. Fredericia, and Hollerup near Langaa) interglacial lacustrine marls and diatom-earth are found, while interglacial peat-bogs occur at Brorup, Hollund Sogaard, and other places between Kolding and Esbjerg. The interglacial flora is characterized by Picea excelsa, Carpinus betulus, Brasenia purpurea, and Dulichium spathaceum.The heath-plain (Hedeslette), the hill-land (Bakkeland), and the moraine-flat (Moraeneflade) are the principal topographical types of the drift.The heath-plains are leached plains with very gentle, regular slopes. They consist of glacio-fluvial sands with almost horizontal stratification. The sand, whose original content of lime has been washed out, is infertile. Extensive areas are not yet cultivated. As a rule the vegetation consists only of heath. The heath-plains are interrupted by more hilly areas, known as hill-islands (Bakkeoer).The hill-land is characterized by hillocks and hollows, or by interrupted ridges and troughs, following one another in rapid succession, and without apparent order in their arrangement. The hollows and troughs are often without outlets, and frequently contain marshes, ponds and lakes. Deep gullies and valleys often occur. In the hill-land the drift varies, till and moraine-sand predominate, but stratified sand and clay may be frequently still of great importance. Then the hills may be heath-clad and form hill-heaths. The most beautiful scenery in Denmark is found in the hill-land, and here grow our woods of native trees.The moraine-flats may be nearly level, but are more usually gently undulating, the undulations involving long gentle sags and swells, They consist chiefly of till, for which reason the soil is fertile and normally without woods.These three types of scenery occur in all lowlands which have been covered by an ice-sheet. Their development is caused by phenomena connected With the margin of the ice.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully- any imperfections that remain are intentionally left to preserve the state of such historical works.