Report Number: 35873
Reporting Year: 2005
Permit Number: CRLA-2005-SCI-0010
Current Status: Checked in
Date Received: Mar 20, 2006
Principal Investigator:
Jeff Repp,
USDA-NRCS-WNTSC,
Portland, OR
Park-assigned Study Id. #
CRLA-00012
Permit Expiration Date:
Aug 19, 2005
Permit Start Date:
Jun 27, 2005
Study Starting Date:
Jun 27, 2005
Study Ending Date:
Jul 15, 2005
Study Status:
Completed
Activity Type:
Inventory
Subject/Discipline:
Plant Communities (Vegetation)
Objectives:
To complete rangeland ecological
site descriptions (9) as part of the Crater Lake NP area Soil Survey. The sites
are already correlated with soil map unit components. The sites will be made
available to the public at the ESIS (ecological site information system) portion
of USDA's PLANTS database [http://plants.usda.gov/]. Most of the field work was
conducted in 2000 and 2001 in conjunction with the soil survey.
Findings and Status:
Plant community data was
collected at nine sites in the park the weeks of June 27th and July 11th, 2005.
Plots were strategically located in the ecological sites to measure plant
community characteristics. The plots and lines were located by GPS and were not
marked otherwise. Three 100 foot lines (sometimes alternative lengths were used
on the smaller woodland wetland areas) were set up in a radiating pattern for
data collection. Protocols included were: 1) Line-point Intercept (300 feet), 2)
Basal and canopy gap analysis (300 feet), 3) Production estimates (double
sampling of six sub-plots, 2.4 sq ft in size), 4) Soil Aggregate Stability
analysis (18 samples per plot), and 5) Rangeland Health Assessment (18
indicators). Extensive photo documentation of each plot/line was collected as
well. No soil or plant materials were removed from the plots unless further
taxonomic identification was required (plants were bagged, moisturized and
removed for further study as needed; only enough plant material for
identification was collected).
Plot information was entered in
the Range Database for inventory and monitoring (available at: http://usda-ars.nmsu.edu/monit_assess/rangedb_main.php).
The data collection also served to test the utility and function of the database
in cooperation with ARS, Jornada Experimental Range, and New Mexico State
University. The database is in beta release and analysis and report generation
programming is in progress.
Data from the nine grassland
(rangeland) ecological sites in Crater Lake National Park will be analyzed and
incorporated into ecological site descriptions (using data collected in 2000 and
2001 also). Data analysis and drafting of ecological site descriptions will be
completed in 2006. No plans are currently under consideration for re-measuring
the plots (although this would be highly desirable). This study is functionally
concluded unless the opportunity arises to monitor vegetation changes at the
plots and/or collect additional data at the same points.
For this study, were one or
more specimens collected and removed from the park but not destroyed during
analyses?
No
Funding provided this
reporting year by NPS: 0
Funding provided this
reporting year by other sources:
6500
Full name of college or
university:
n/a
Annual funding provided by
NPS to university or college this reporting year: 0
