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A MATHEMATICAL MODEL RELATING SOIL ORGANIC MATTER DECOMPOSITION TO MICROBIAL COMMUNITY DYNAMICS

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Material Information

Title:
A MATHEMATICAL MODEL RELATING SOIL ORGANIC MATTER DECOMPOSITION TO MICROBIAL COMMUNITY DYNAMICS
Physical Description:
Book
Language:
English
Creator:
Chastain, Vanessa
Publisher:
New College of Florida
Place of Publication:
Sarasota, Fla.
Publication Date:

Thesis/Dissertation Information

Degree:
Bachelor's ( B.A.)
Degree Grantor:
New College of Florida
Degree Divisions:
Natural Sciences
Area of Concentration:
Applied Mathematics, Environmental Science
Faculty Sponsor:
McDonald, Patrick
Yildirim, Necmettin

Subjects

Genre:
Electronic Thesis or Dissertation
bibliography   ( marcgt )
theses   ( marcgt )
born-digital   ( sobekcm )
government publication (state, provincial, territorial, dependent)   ( marcgt )

Notes

Abstract:
Soil organic matter (SOM) decomposition releases the nutrients and minerals stored long-term in soil, so they can be consumed by a variety of soil biota via direct assimilation or trophic interactions. It is involved in both carbon and nitrogen cycling and also has relevance to climate change research due to its effect on net CO2 respired and N2O emitted via denitrication. K strategist microbes only con- sume SOM-derived substrate and are primarily responsible for SOM decomposition, so their population dynamics influence and are affected by SOM decomposition rates. On the other hand, r strategist microbes take advantage of soluble substrate that already exists in the system and cannot decompose insoluble materials. A mathematical model is developed to study the relationship between SOM decomposition and the community dynamics of microbes. The model is tested for different factors that change carbon and nitrogen availability in a soil ecosystem, including addition of root exudates, plant litter, and ammonia. In particular, root exudates, represented by the parameter (phi)r, are shown to increase steady states for r and K strategist biomass.
Statement of Responsibility:
by Vanessa Chastain
Thesis:
Thesis (B.A.) -- New College of Florida, 2014
General Note:
Accompanying materials: CD containing code.
General Note:
RESTRICTED TO NCF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE
Bibliography:
Includes bibliographical references.
General Note:
This bibliographic record is available under the Creative Commons CC0 public domain dedication. The New College of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
General Note:
Faculty Sponsor: McDonald, Patrick; Yildirim, Necmettin

Record Information

Source Institution:
New College of Florida
Holding Location:
New College of Florida
Rights Management:
Applicable rights reserved.
Classification:
S.T. 2014 C4
System ID:
AA00024691:00001

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