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Trough Versus Funnel Collectors for Measuring Throughfall Volumes
Author(s) -
Reynolds B.,
Neal C.
Publication year - 1991
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1991.00472425002000030003x
Subject(s) - throughfall , larix kaempferi , carr , larch , funnel , environmental science , terrain , forestry , significant difference , hydrology (agriculture) , geography , botany , geology , ecology , biology , soil science , mathematics , soil water , cartography , environmental engineering , statistics , geotechnical engineering
Throughfall was collected, at fortnightly intervals, for 1 yr beneath mature stands of Sitka spruce [ Picea sitchensis (Bong.) Carr.] and Japanese larch [ Larix kaempferi (Lamb.) Carr.] using arrays of troughs and funnels. There was no statistically significant difference between the annual total amounts of throughfall collected by the troughs and the funnels. Analysis of the fortnightly data revealed a small bias toward a lower catch by the troughs, although for any given fortnight, quite large differences might occur. Discussion of the results in relation to a recent paper by Kostelnik et al. concludes that there is insufficient evidence on which to reject funnels in favor of troughs for throughfall studies.