Form Approved
REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
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this burden to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302.
Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid
OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS.
1. REPORT DATE (DD-MM-YY)
2. REPORT TYPE
3. DATES COVERED (From - To)
February 2001
Technical Report
4. TITLE AND SUBTITLE
5a. CONTRACT NUMBER
An Ecological Land Survey for Fort Greely, Alaska
5b. GRANT NUMBER
5c. PROGRAM ELEMENT NUMBER
6. AUTHOR(S)
5d. PROJECT NUMBER
M. Torre Jorgenson, Joanna E. Roth, Michael D. Smith, Sharon Schlentner,
5e. TASK NUMBER
Will Lentz, Erik R. Pullman, and Charles H. Racine
5f. WORK UNIT NUMBER
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION REPORT
NUMBER
ABR Inc.
PO Box 80410
ERDC/CRREL TR-01-4
Fairbanks, AK 99709
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSOR / MONITOR'S ACRONYM(S)
U.S. Army Engineer Research and Development Center
Cold Regions Research and Engineering Laboratory
11. SPONSOR / MONITOR'S REPORT
72 Lyme Road
NUMBER(S)
Hanover, New Hampshire 03755-1290
12. DISTRIBUTION / AVAILABILITY STATEMENT
Approved for public release; distribution is unlimited.
Available from NTIS, Springfield, Virginia 22161.
13. SUPPLEMENTARY NOTES
14. ABSTRACT
An ecological land survey (ELS) of Fort Greely land was conducted to map ecosystems at three spatial scales to aid in the management of
natural resources. In an ELS, an attempt is made to view landscapes not just as aggregations of separate biological and earth resources, but
as ecological systems with functionally related parts that can provide a consistent conceptual framework for ecological applications. Field
surveys at 74 sites along 7 toposequences, and at an additional 178 ground-reference locations, were used to identify relationships among
physiography, geomorphology, hydrology, permafrost, and vegetation. The association among ecosystem components also revealed effects
of fire and geomorphic processes, such as groundwater discharge, floodplain development, permafrost degradation, and paludification.
Ecosoystems were mapped at three spatial scales. Ecotypes (1:50,000 scale) delineated areas with homogenous topography, terrain, soil,
surface-form, hydrology, and vegetation. Ecosections (1:100,000 scale) are homogeneous with respect to geomorphic features and water
regime and, thus, have recurring patterns of soils and vegetation. Ecodistricts (1:500,000) are broader areas with similar geology, geomor-
phology, and physiography. Development of the spatial database within a geographic information system will facilitate numerous manage-
ment objectives such as wetland protection, integrated-training-area management, permafrost protection, wildlife management, and recre-
ational area management.
15. SUBJECT TERMS
Alaska
Fort Greely, Alaska
Vegetation
Ecosystem mapping
Geomorphology
16. SECURITY CLASSIFICATION OF:
17. LIMITATION OF
18. NUMBER
19a. NAME OF RESPONSIBLE PERSON
OF ABSTRACT
OF PAGES
a. REPORT
b. ABSTRACT
c. THIS PAGE
19b. TELEPHONE NUMBER (include area code)
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90
Standard Form 298 (Rev. 8-98)
]Prescribed by ANSI Std. 239.18
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