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(Article of periodic en Anglais - 2009)

Document title

Phytogenic hillocks as an effect of indirect human activity

Authors(s) and Affiliation(s)

RAHMONOV O. ; SNYTKO V.A. ; SZCZYPEK T. ;

Abstract

Phytogenic hillocks are landforms typical for areas built of blown sands. They are an effect of cooperation of wind with bushy vegetation of specific features. One of such areas is located in Silesian Upland in southern Poland (so-called Bledow "Desert"), which beginning goes back to the Middle Ages. It is connected with deforestation, mainly for the needs of contemporary lead, silver and zinc metallurgy. Presently this area is covered in result of intentional vegetation introduction as well as by natural vegetation expansion and succession. One of species intensively entering into this area is Salix arenaria. And just at participation of this bushy willow in deflation areas very characteristic phytogenic hillocks of heights reaching up to 1,5 m are here created using more humid clayey insertions of substratum. In area discussed it is possible to observe different development stages of phytogenic hillocks : from initial through mature to disappearing ones. The age of hills was determined on the base of dendrochronological analysis. These hills have different shapes and heights, which are conditioned by the intensity of aeolian processes. It is possible to state that phytogenic hillocks of so-called Bledow "Desert" are created by natural physicogeographical processes but conditions for their development were preparated by human being. Thus they are the effect of indirect anthropogenic activity

Source

Article of periodic

published at : Zeitschrift für Geomorphologie / ISSN 0372-8854 / CODEN ZGMPAG

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2009, vol. 53, no3 [pp. 359-370]

Bibliographic references : 1 p.

Collation : 5 fig., 1 tabl., 5 phot.

Language

Anglais

INIST-CNRS, Cote INIST : 8829

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2009/0053-0359

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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