Abstract/Details

Ecosystem classification and succession of northeast Indiana


2004 2004

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Abstract (summary)

A multi-factor ecosystem classification of the Bluffton Till Plain has been created to characterize and organize ecosystem units within the Framework for Hierarchical Ecosystem Classification, which is used in forests throughout the eastern United States. Through examination of relationships between potential natural vegetation, soil, and landform characteristics, the Bluffton Till Plain has been organized into 3 ecological land-types (ELT) and 12 ecological land-type phases (ELTP). Nine herbaceous plant communities were described in the region, and they have been used to indicate site characteristics distinctive of each ELTP. Plant communities were found to be strongly related to landform topography, soil horizon depths, and soil texture through a process that identified communities with cluster analysis and related them to site characteristics with Classification and Regression Tree analysis. Ecological land-types were found to differ in their successional trends, with the greatest difference between ELTPs in mesic upland sites and wet-depressional sites. Upland sites follow the acknowledged trend of oak-hickory communities shifting to a beech-maple community dominated by Acer saccharum; while upland depressional sites follow trends that indicate Acer saccharinum dominance through time. Additional research concerning the effect of fragmentation on woody species' successional trends shows that sites located in small forests (<10 ha) do not differ significantly from those located in large forests (>10 ha). This project illustrates the importance of site characteristics and disturbance history on plant species community composition, and the ability to use the relationships between sites and vegetation in constructing an ecosystem classification.

Indexing (details)


Subject
Forestry;
Ecology
Classification
0478: Forestry
0329: Ecology
Identifier / keyword
Biological sciences; Acer saccharum; Forest succession; Indiana; Vegetation
Title
Ecosystem classification and succession of northeast Indiana
Author
Dolan, Benjamin J.
Number of pages
173
Publication year
2004
Degree date
2004
School code
0183
Source
DAI-B 66/03, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780542022142, 0542022141
Advisor
Parker, George R.
University/institution
Purdue University
University location
United States -- Indiana
Degree
Ph.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
3166614
ProQuest document ID
305152657
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/305152657/abstract
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