Event Title
Throughfall spatiotemporal variability within two conifer stands of the Mayson Lake Hydrological Processes Study Area
Description
Rainfall and throughfall were measured during the growing-season of 2007 in a mature and a juvenile coniferous stand of the Thompson Plateau in south-central British Columbia. For the 18 rainfall events sampled (cumulative depth of 111.4 mm) no significant difference (ƒ¿ = 0.05) in cumulative throughfall was found between the mature and juvenile stand with inputs of 77.5 } 11.1 mm (69.6 } 9.9 % of rainfall) and 82.7 } 8.1 mm (74.2 } 7.3 % of rainfall), respectively. Linear regression equations relating throughfall depth to rainfall depth for events that saturate the canopy and those that do not were derived for both stands. The 32 stationary throughfall gauges used in this study represented a sufficiently large enough sample to estimate mean stand-scale throughfall to within } 20% at the 95 % confidence level for rainfalls . 8.7 and . 3.1 mm in the mature and juvenile stand, respectively. Cumulative point throughfall was found to be a function of canopy cover in the mature stand, while in the juvenile stand point throughfall was found to be correlated with both canopy cover and the cumulative basal area of trees contained within a 4 m radius of the gauge.
Document Type
Event
Start Date
8-3-2008 8:00 AM
Subject - LCSH
Forest hydrology--British Columbia--Thompson Plateau; Throughfall--British Columbia--Thompson Plateau
End Date
8-3-2008 5:00 PM
Session
Forest Science I
Genre/Form
abstracts (summaries)
Type
event
Geographic Coverage
Thompson Plateau (B.C.); British Columbia
Rights
Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.
Language
English
Format
application/pdf
Keywords
forest hydrology, throughfall, spatiotemporal variability
Throughfall spatiotemporal variability within two conifer stands of the Mayson Lake Hydrological Processes Study Area
Rainfall and throughfall were measured during the growing-season of 2007 in a mature and a juvenile coniferous stand of the Thompson Plateau in south-central British Columbia. For the 18 rainfall events sampled (cumulative depth of 111.4 mm) no significant difference (ƒ¿ = 0.05) in cumulative throughfall was found between the mature and juvenile stand with inputs of 77.5 } 11.1 mm (69.6 } 9.9 % of rainfall) and 82.7 } 8.1 mm (74.2 } 7.3 % of rainfall), respectively. Linear regression equations relating throughfall depth to rainfall depth for events that saturate the canopy and those that do not were derived for both stands. The 32 stationary throughfall gauges used in this study represented a sufficiently large enough sample to estimate mean stand-scale throughfall to within } 20% at the 95 % confidence level for rainfalls . 8.7 and . 3.1 mm in the mature and juvenile stand, respectively. Cumulative point throughfall was found to be a function of canopy cover in the mature stand, while in the juvenile stand point throughfall was found to be correlated with both canopy cover and the cumulative basal area of trees contained within a 4 m radius of the gauge.