Link to Virginia Tech Dendrology Lab

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dbhguru
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Re: Link to Virginia Tech Dendrology Lab

Post by dbhguru » Fri Apr 07, 2017 3:14 pm

Matt,

Thanks very much. We're just at the beginning. John Peterson s working on reports for the public. They are committed at VA Tech Dendrology to make this THE site to go to to get answers on species maximums.

Bob
Robert T. Leverett
Co-founder, Native Native Tree Society
Co-founder and President
Friends of Mohawk Trail State Forest
Co-founder, National Cadre

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dbhguru
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Re: Link to Virginia Tech Dendrology Lab

Post by dbhguru » Tue Apr 11, 2017 3:47 pm

Ents,

We have 2246 records in the Superlative Native Tree Database. They represent the measurements of Dale Luthringer, Larry Tucei, Elijah Whitcomb, Erik Danielsen, Jared Lockwood, John Eichholz, Turner Sharp, Matt Markworth, and yours truly. Jess Riddle amy send a very large dataset in a month or two, and we should be receiving data from a few others including Michael Davey and Don Bragg. It is a pretty simple system to use and it has a very bright future. So, we'll push on.

On June 16th, we'll meet at the Red Hill Plantation in Virginia for a tree-measuring workshop. Red Hill is patriot Patrick Henry's old estate. The NPS is going to give us space. All are welcome. As of now, the following attendance, confirmed and tentative is what we show.

Source Number

VA Tree Hunters 6

VA Tech
Eric Wiseman 1
John Peterson 1

Cadre - Confirmed
Bob Leverett 1
Larry Tucei 1
Joli McCathran 1
Nancy Weiss 1

Cadre - Tentative
Jared Lockwood 1
Erik Danielsen 1
Jess Riddle 1
Brian Beduhn 1

AF HQ 1

Potential Count
At This Time 17

Bob
Robert T. Leverett
Co-founder, Native Native Tree Society
Co-founder and President
Friends of Mohawk Trail State Forest
Co-founder, National Cadre

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dbhguru
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Joined: Mon Mar 08, 2010 9:34 pm

Re: Link to Virginia Tech Dendrology Lab

Post by dbhguru » Fri Apr 28, 2017 6:11 pm

Ents,

We now have 2479 records in the Superlative Native Tree Database. The best way to enter more than 2 or 3 records is to create an Excel import file and send it to John Peterson. The attachment provides instructions. The first worksheet gives the record layout and explains the kind of information that goes into each field. The behind the scenes SQL record layout is also given. The second worksheet is the actual template. Copy it to a new workbook and enter data, then save it to the name you want. The third worksheet is a work in progress. Data from old lists may be copied into an Excel worksheet, but then the information in each field must be in the right format. For example, your original dates might be in a format such as mm/dd/yyyy. These entries would have to be converted to an equivalent yyyymmdd. The latter would be formatted as general or numeric with zero decimal positions.

Bob
Attachments
NTS-VATech-TreeDatabaseImportFormLayout&Template.xlsx
(20.27 KiB) Downloaded 91 times
Robert T. Leverett
Co-founder, Native Native Tree Society
Co-founder and President
Friends of Mohawk Trail State Forest
Co-founder, National Cadre

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ElijahW
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Re: Link to Virginia Tech Dendrology Lab

Post by ElijahW » Mon Apr 16, 2018 2:31 pm

NTS,

I’ve been browsing the VT Database site some recently, and ran across a couple of interesting features. One that I already knew about and use frequently is the link to Tree Identification (run by VT) and the other is a link to Neil Pederson’s OLDLIST. This second link, http://www.rmtrr.org/oldlist.htm, apparently hosted by Rocky Mountain Tree-Ring Research (Director Dr. Peter M. Brown), includes tree age data from countries outside the US. Please check it out.

The VT Database now lists 3092 trees. Check it out, as well.

Elijah
"There is nothing in the world to equal the forest as nature made it. The finest formal forest, the most magnificent artificially grown woods, cannot compare with the grandeur of primeval woodland." Bob Marshall, Recreational Limitations to Silviculture in the Adirondacks

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dbhguru
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Re: Link to Virginia Tech Dendrology Lab

Post by dbhguru » Mon Apr 16, 2018 3:21 pm

Elijah,

Yes, Neil Pederson is now storing his maximum tree age data in the VT-NTS database. BTW, Neil is getting ready to go to Bhutan. He does research there, as does he in Mongolia. He is still a rising star in the dendrochronology world, and is on the way to being one of the top worldwide.

As a side note, it probably is not known by most of our members, but a noted dendrochronologist, namely Dr. David Stahle, Director of the Tree-Ring Laboratory at the University of Arkansas is one of the cofounders of NTS (then it was ENTS). Over the years we've had some really heavy hitters in NTS, but the fruits of our efforts remain widely scattered.

As a final tidbit, one way to reverse the widely scattered problem is the revitalization of the Dendromorphometry book. It is proceeding on schedule. Bob Van Pelt may add a really heavyweight section on volume modeling through photogrammetry. He wants to develop the methodology so that more people can make use of it. He and Steve Sillett have been using that method for a long time now. In terms of determining volumes accurately, they are way out front.

Bob
Robert T. Leverett
Co-founder, Native Native Tree Society
Co-founder and President
Friends of Mohawk Trail State Forest
Co-founder, National Cadre

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