TAILIEUCHUNG - Schröder Environmental Sciences Europe 2011, 23:20 http://www.enveurope.com/content/23/1/20 CO M M

Schröder Environmental Sciences Europe 2011, 23:20 CO M M E N TA R Y Open Access Reply to “Down-to-Earth” is Imperative! On the Problems of Landscape-Ecological Regionalisation by Means of Multivariate Statistical Methods Friedrich Weller (Ravensburg, Germany) in DIE ERDE 2009, 140:113-125 Replik auf Bodenhaftung tut not! Zur Problematik landschaftsökologischer Regionalisierung mit Hilfe multivariat-statistischer Methoden Friedrich Weller (Ravensburg) in DIE ERDE 2009, 140:113-125 Winfried Schröder* Abstract The reply addresses the severe criticism of F. Weller in DIE ERDE 2009, 140:113-125 dealing with the ecological land classification which was first published in Umweltwissenschaften und Schadstoff-Forschung 12 (4), S. 237-243 and later on detailed in the. | Schroder Environmental Sciences Europe 2011 23 20 http content 23 1 20 o Environmental Sciences Europe a SpringerOpen Journal COMMENTARY Open Access Reply to Down-to-Earth is Imperative On the Problems of Landscape-Ecological Regionalisation by Means of Multivariate Statistical Methods Friedrich Weller Ravensburg Germany in DIE ERDE 2009 140 113-125 Replik auf Bodenhaftung tut not Zur Problematik landschaftsokologischer Regionalisierung mit Hilfe multivariat-statistischer Methoden Friedrich Weller Ravensburg in DIE ERDE 2009 140 113-125 Winfried Schroder Abstract The reply addresses the severe criticism of F. Weller in DIE ERDE 2009 140 113-125 dealing with the ecological land classification which was first published in Umweltwissenschaften undSchadstoff-Forschung 12 4 S. 237-243 and later on detailed in the Handbuch der Umweltwissenschaften 17. . 2006. Mainly the critique concentrates on the following three issues 1. The regionalisation dissects uniform landscapes each exhibiting a typical ecological pattern and combines the separated parts with parts of other landscapes to form ecological heterogeneous land classes. 2. The calculation of average values of ecological characters of these heterogeneous land classes is useless and absurd. 3. The nomenclature of the statistically derived land classes violates the correct use of traditional landscape names. The reply shows that on the one hand Weller s criticism is due to the impression that he does not understand the statistical method used to calculate the ecological land classification. On the other hand the reply seizes that Weller s idea of land classification does not meet the epistemological principles of experimental sciences such as methodical transparency as well as objectivity and reproducibility of results. Keywords Ecological land classification Geographic Information System GIS multivariate statistics objectivity reproducibility transparency. Correspondence .

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