Event Title

Deriving stemflow funnelling ratios for vegetation communities around the world based on the available literature

Description

The stemflow funnelling ratio may be defined as the ratio between the volume of precipitation diverted to the base of a plant's stem or a tree's trunk to the volume that would have been captured by a gauge having a diameter equal to that of the plant stem or tree trunk in the absence of vegetation cover. Although stemflow funnelling ratios are available from only a few studies, individual plant and tree funnelling ratios or mean stand-scale funnelling ratios may be derived from previous stemflow studies so long as the following information is provided: i) the depth of individual precipitation events; ii) the stemflow depth associated with those precipitation events; iii) basal area data; and iv) for the case of mean stand-scale ratio, information regarding the stand density. A review of the stemflow literature is currently being conducted so that funnelling ratios for different plant and tree species under varying rainfall depth scenarios may be derived. Examples of such funnelling ratios will be presented and the importance of funnelling ratios with regards to canopy water balance modelling will be discussed.

Document Type

Event

Start Date

8-3-2008 8:00 AM

Subject - LCSH

Forest hydrology

End Date

8-3-2008 5:00 PM

Session

Forest Science II

Genre/Form

Abstracts

Type

event

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, stemflow, funneling ratio

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Mar 8th, 8:00 AM Mar 8th, 5:00 PM

Deriving stemflow funnelling ratios for vegetation communities around the world based on the available literature

The stemflow funnelling ratio may be defined as the ratio between the volume of precipitation diverted to the base of a plant's stem or a tree's trunk to the volume that would have been captured by a gauge having a diameter equal to that of the plant stem or tree trunk in the absence of vegetation cover. Although stemflow funnelling ratios are available from only a few studies, individual plant and tree funnelling ratios or mean stand-scale funnelling ratios may be derived from previous stemflow studies so long as the following information is provided: i) the depth of individual precipitation events; ii) the stemflow depth associated with those precipitation events; iii) basal area data; and iv) for the case of mean stand-scale ratio, information regarding the stand density. A review of the stemflow literature is currently being conducted so that funnelling ratios for different plant and tree species under varying rainfall depth scenarios may be derived. Examples of such funnelling ratios will be presented and the importance of funnelling ratios with regards to canopy water balance modelling will be discussed.