The FPS 10-meter Site Index, SiteGrid and CASH Card Localization – A Workshop on Localizing the FPS Universal Growth Model
Location: CH2M Hill Alumni Center, Oregon State University, Corvallis, OR
• Measuring Site trees – traditional to FPS 10-meter method
• Defining 10-meter Site, %Regen and %Shape parameters
• Introducing the Taper / Site Field recording methods and forms
• Individual tree applications with Excel spreadsheet
• Loading FPS TapHead, TapTree, TapForm and SiteTree tables
Stop #1 – Felled-tree Sample
• Large, older stand of Douglas-fir
• Two trees on the ground and measured
• One tree to drop after field inspection
Stop #2 – Young Planted Stand
• Measurements using the FPS CASH Card
• Determining early growth rates relative to Stand, Stop #1
• Building and Populating the GIS SiteGrid layer
o Invoking the SiteGrid Regional Model
• Stratifying the Forest based on Primary Factors
• Bring in and Compile the felled-tree field samples
• Edit and Load SiteGrid with Field Observations
o Observe differences among species
• Review Nonparametric Regression Report
• Extrapolate SiteGrid to FPS Admin Inventory Database
• Annual Maintenance of SiteGrid GIS layer and Linkage to Nelder Installations
Non-member Regular Price: $450
An FBRI Field Workshop by James D. Arney and Brock Purvis
The newly released FPS 7.50 Universal Library is highly sensitive to localization of site classification and silviculture on each working forest. This capacity is only invoked if the local forester applies the FBRI “Cash Card” and 10-meter “SiteGrid” technologies imbedded in FPS.
Height growth is perhaps the most widely used basis for indexing site quality. Most commonly, a reference set of site index (height/age) curves is used. As management decisions have increased in complexity, the need for accurate site productivity classification has also increased.
There are three major problems with traditional site index curves that are causing serious concerns; they are:
- Application of traditional site index curves often results in errors due to plantation intensive culture or overstory suppression. There appears to be no way to separate early silvicultural (micro-site) effects from regional or “macro” site capacity.
- Site curves, as traditionally constructed, are broad averages which are insufficient to identify the local site specific variation in height growth patterns (soil, topography, and climate).
- Current management (or the lack thereof) has reduced the population of suitable “site trees” so that it is difficult to obtain reliable traditional site index estimates for each stand in a working forest inventory.
The FPS Cash Card and 10-meter SiteGrid methods provide a direct solution to the first and second concerns. This Workshop provides the methods to index the separate effects of early silviculture and the “natural” site capacity of each stand in your inventory. When combined with soil/site factors in an FPS “SiteGrid”, this approach provides robust estimates of potential height growth trends from bio/geo/climatic variables.
- Describe the field and analytical steps of this new approach to site classification.
- Demonstrate how to move past traditional site curves confounded by early silvicultural conditions (early height/age trends).
- Draw attention to the significance in macro-site height growth patterns (late height/age trends) on yield capacity and optimal rotation ages.
The workshop will be held at the CH2MHill Alumni Center on the Oregon State University campus in Corvallis, OR. The Alumni Center is located at 725 SW 26th St.
The registration fee is $325 for FBRI members and $450 for non-FBRI members. The registration fee includes field trip transportation, a book of speaker materials, two lunches and refreshments.
Checks should be made payable to Forest Biometrics Research Institute. Purchase orders, VISA/MasterCard, and American Express are accepted. Tax id # 900103944.
503-227-0622 or email@example.com
No block of rooms has been reserved for this meeting. The nearest hotel is the Hilton Garden Inn at 541-752-5000, which is walking distance from the Alumni Center. Additional hotels are available in Corvallis and are within driving distance.