Effects of Quercus emoryi trees on microclimate, precipitation distribution, and herbs in a semi-arid savanna

Persistent Link:
http://hdl.handle.net/10150/192062
Title:
Effects of Quercus emoryi trees on microclimate, precipitation distribution, and herbs in a semi-arid savanna
Author:
Haworth, Kathryn,1963-
Issue Date:
1992
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
This study evaluated the effects of individual trees (5-70 m² canopy area) on precipitation distribution, bulk density, soil moisture, soil temperature, elevational gradients, and herbaceous species composition and biomass in a Ouercus emoryi Torr. savanna in southeastern Arizona. Throughfall was influenced by tree size and storm size for precipitation events less than 3 cm. Nonlinear regression showed an exponential relationship between storm size and stemflow; storm size explained 67% of the variability in stemf low. Tree size was linearly related to stemf low, and explained an additional 5% of the variability. Location beneath trees and between-tree variability influenced soil moisture and temperature. These factors influenced soil temperature on more sampling dates than soil moisture. Temperatures were cooler beneath tree canopies in summer and warmer in winter. Herbaceous biomass was reduced by tree canopies, but composition was not influenced by trees.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Emory oak -- Arizona.; Microclimatology -- Arizona.; Precipitation (Meteorology) -- Arizona -- Measurement.; Savanna ecology -- Arizona.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Renewable Natural Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
McPherson, Guy R.; Guertin, D. Phillip; Roundy, Bruce A.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleEffects of Quercus emoryi trees on microclimate, precipitation distribution, and herbs in a semi-arid savannaen_US
dc.creatorHaworth, Kathryn,1963-en_US
dc.contributor.authorHaworth, Kathryn,1963-en_US
dc.date.issued1992en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThis study evaluated the effects of individual trees (5-70 m² canopy area) on precipitation distribution, bulk density, soil moisture, soil temperature, elevational gradients, and herbaceous species composition and biomass in a Ouercus emoryi Torr. savanna in southeastern Arizona. Throughfall was influenced by tree size and storm size for precipitation events less than 3 cm. Nonlinear regression showed an exponential relationship between storm size and stemflow; storm size explained 67% of the variability in stemf low. Tree size was linearly related to stemf low, and explained an additional 5% of the variability. Location beneath trees and between-tree variability influenced soil moisture and temperature. These factors influenced soil temperature on more sampling dates than soil moisture. Temperatures were cooler beneath tree canopies in summer and warmer in winter. Herbaceous biomass was reduced by tree canopies, but composition was not influenced by trees.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshEmory oak -- Arizona.en_US
dc.subject.lcshMicroclimatology -- Arizona.en_US
dc.subject.lcshPrecipitation (Meteorology) -- Arizona -- Measurement.en_US
dc.subject.lcshSavanna ecology -- Arizona.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineRenewable Natural Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairMcPherson, Guy R.en_US
dc.contributor.chairGuertin, D. Phillipen_US
dc.contributor.chairRoundy, Bruce A.en_US
dc.identifier.oclc225649918en_US
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