Accession Number : ADP001275

Title :   ELF (Extremely Low Frequency) Communications System Ecological Monitoring Program. Herbaceous Plant Cover and Tree Studies, Tasks 5.13/5.14.

Descriptive Note : Annual rept.,

Corporate Author : MICHIGAN TECHNOLOGICAL UNIV HOUGHTON

Personal Author(s) : Bruhn,Johann ; Gale,Margaret ; Janke,Robert ; Kotar,John ; Mroz,Glenn

Report Date : 1982

Pagination or Media Count : 38

Abstract : The objective of this study is to investigate and characterize the growth of trees and herbaceous plants on selected plots within the ELF antenna area prior to the actual operation of the communication system (1986). This information will be used as a baseline to evaluate possible ELF effects on the associated forest communities when the antenna becomes operable. In order to accomplish this goal, the monitoring of possible ELF effects on trees and herbaceous plants has been divided into seven study elements: (1) plot selection and statistical design, (2) ambient monitoring, (3) tree productivity, (4) tree phenology, (5) herbaceous plant growth, (6) root growth and mycorrhizal development, and (7) litter production. The major activity during the initial four month period was the screening of forest stands for use as ELF study or control plots. Reconnaissance of ELF grid area showed a wide mosaic of forest conditions, topography and soil types.

Descriptors :   *Forests, *Plant growth, *Electromagnetic fields, Monitoring, Plants(Botany), Base lines, Data acquisition, Site selection, Statistical tests, Trees, Environments, Growth(physiology), Plant roots, Mycobacterium

Distribution Statement : APPROVED FOR PUBLIC RELEASE