Accession Number : ADA302962
Title : Tree Growth on the Snake River Floodplain, Jackson Hole, Wyoming. A Dendrochronology Project.
Descriptive Note : Final rept.,
Corporate Author : WYOMING UNIV LARAMIE
Personal Author(s) : Reher, Charles A. ; Scheiber, Laura L.
PDF Url : ADA302962
Report Date : NOV 1995
Pagination or Media Count : 114
Abstract : This is a dendrochronological study of tree-growth rates along the Snake River floodplain in Jackson Hole, Wyoming. The study involved collecting, curing, and analyzing 115 measurable radii from 56 trees in four study sites. The sites are a representative set of Snake River floodplain contexts, organized around a continuum of different amounts of human and natural effects on the floodplain ecosystem. From these analyses, information concerning tree-growth rates under varying floodplain conditions, such as areas with flood control levees versus no levees or disturbed by flooding or grazing versus no recent disturbance, was examined. The study also involved the design and construction of a new IBM-compatible computerized measuring system, along with programming new software and obtaining or refining existing software. The results reveal a clear and statistically significant difference in tree growth at the four study site contexts. A stand age-effect and related successional processes contributed to the growth rates seen, as did competition from developing canopy coverage and understory density. These are in turn greatly affected by the establishment, or lack, of levees, and by livestock grazing and other disturbances that accrue after a levee has been built.
Descriptors : *COMPUTER PROGRAMS, *COMPUTER PROGRAMMING, *FIELD TESTS, *STATISTICAL SAMPLES, *SEASONAL VARIATIONS, *FLOOD PLAINS, *ANTHROPOLOGY, WINTER, TREES, PLANT GROWTH, LIFE(BIOLOGY), WYOMING.
Subject Categories : Hydrology, Limnology and Potamology
Sociology and Law
Computer Programming and Software
Distribution Statement : APPROVED FOR PUBLIC RELEASE