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Allochthonous Input of Coarse Particulate Organic Matter (CPOM) in a First to Fourth Order Austrian Forest Stream
Author(s) -
Weigelhofer G.,
Waringer J. A.
Publication year - 1994
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19940790313
Subject(s) - riparian zone , particulate organic matter , riparian forest , environmental science , particulates , hydrology (agriculture) , streams , organic matter , vegetation (pathology) , spring (device) , atmospheric sciences , geology , ecology , geotechnical engineering , physics , biology , medicine , computer network , pathology , habitat , computer science , thermodynamics
The allochthonous input of coarse particulate organic matter (CPOM) at the Mauerbach, a low order Austrian forest brook, was investigated from October 1990 to November 1991. Annual input rates ranged from 361.5 to 716.2 g dry weight m −2 for the direct input and 46.6 to 594.9 g m −1 for the lateral input. Input rates were influenced by the composition and density of the riparian vegetation and the bank inclination. The temporal distribution of the direct input showed an autumnal maximum (50–70% of the total), whereas for the lateral input an autumn (30–50%) and a spring (19%) peak were observed. Along the course of the stream, the proportion of the lateral input increased with decreasing stream width. Total annual input for the Mauerbach was 21.8 t CPOM, with 73.4% due to direct and 26.6% due to lateral input.