eint vol7_0006 Mp_1 File # vol7_0006 A Representation of Variable Root Distribution in Dynamic Vegetation Models
ABSTRACT: Root distribution is treated as a static component in most current dynamic vegetation models (DVMs). While changes in leaf and stem biomass are reflected in leaf area index (LAI) and vegetation height via specific leaf area (SLA) and allometric relationships, most DVMs assume that changes...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.69.5733 2023-05-15T18:40:24+02:00 eint vol7_0006 Mp_1 File # vol7_0006 A Representation of Variable Root Distribution in Dynamic Vegetation Models Vivek K. Arora George J. Boer The Pennsylvania State University CiteSeerX Archives 2003 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.69.5733 http://www.cccma.bc.ec.gc.ca/papers/varora/EI_rooting_paper.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.69.5733 http://www.cccma.bc.ec.gc.ca/papers/varora/EI_rooting_paper.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.cccma.bc.ec.gc.ca/papers/varora/EI_rooting_paper.pdf Dynamics vegetation models Root distribution text 2003 ftciteseerx 2016-01-08T18:19:56Z ABSTRACT: Root distribution is treated as a static component in most current dynamic vegetation models (DVMs). While changes in leaf and stem biomass are reflected in leaf area index (LAI) and vegetation height via specific leaf area (SLA) and allometric relationships, most DVMs assume that changes in root biomass do not result in changes in the root distribution profile and rooting depth. That is, the fraction of roots in soil layers, which is used to estimate transpiration, is taken to be constant and independent of root biomass and/or vegetation age. A methodology for parameterizing root distribution as a function of root biomass is proposed for use in dynamic vegetation models. In this representation, root distribution and rooting depth evolve and increase as root biomass increases, as is expected intuitively and as is seen in observations. Root biomass data from temperate coniferous, tropical evergreen, and tundra sites show that the approach successfully represents, to the first order, the change of root distribution and rooting depth as a function of root biomass. Text Tundra Unknown |
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Dynamics vegetation models Root distribution |
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Dynamics vegetation models Root distribution Vivek K. Arora George J. Boer eint vol7_0006 Mp_1 File # vol7_0006 A Representation of Variable Root Distribution in Dynamic Vegetation Models |
topic_facet |
Dynamics vegetation models Root distribution |
description |
ABSTRACT: Root distribution is treated as a static component in most current dynamic vegetation models (DVMs). While changes in leaf and stem biomass are reflected in leaf area index (LAI) and vegetation height via specific leaf area (SLA) and allometric relationships, most DVMs assume that changes in root biomass do not result in changes in the root distribution profile and rooting depth. That is, the fraction of roots in soil layers, which is used to estimate transpiration, is taken to be constant and independent of root biomass and/or vegetation age. A methodology for parameterizing root distribution as a function of root biomass is proposed for use in dynamic vegetation models. In this representation, root distribution and rooting depth evolve and increase as root biomass increases, as is expected intuitively and as is seen in observations. Root biomass data from temperate coniferous, tropical evergreen, and tundra sites show that the approach successfully represents, to the first order, the change of root distribution and rooting depth as a function of root biomass. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Vivek K. Arora George J. Boer |
author_facet |
Vivek K. Arora George J. Boer |
author_sort |
Vivek K. Arora |
title |
eint vol7_0006 Mp_1 File # vol7_0006 A Representation of Variable Root Distribution in Dynamic Vegetation Models |
title_short |
eint vol7_0006 Mp_1 File # vol7_0006 A Representation of Variable Root Distribution in Dynamic Vegetation Models |
title_full |
eint vol7_0006 Mp_1 File # vol7_0006 A Representation of Variable Root Distribution in Dynamic Vegetation Models |
title_fullStr |
eint vol7_0006 Mp_1 File # vol7_0006 A Representation of Variable Root Distribution in Dynamic Vegetation Models |
title_full_unstemmed |
eint vol7_0006 Mp_1 File # vol7_0006 A Representation of Variable Root Distribution in Dynamic Vegetation Models |
title_sort |
eint vol7_0006 mp_1 file # vol7_0006 a representation of variable root distribution in dynamic vegetation models |
publishDate |
2003 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.69.5733 http://www.cccma.bc.ec.gc.ca/papers/varora/EI_rooting_paper.pdf |
genre |
Tundra |
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Tundra |
op_source |
http://www.cccma.bc.ec.gc.ca/papers/varora/EI_rooting_paper.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.69.5733 http://www.cccma.bc.ec.gc.ca/papers/varora/EI_rooting_paper.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766229752944787456 |