Don, How did you isolate the OG class?Was it a combination (algebraic) of spectral bands or PCA or? I am very interested in this. Sounds like the location of the OG might be due to hemlock being predominantly high on north slopes and because of location it was not cut?
Gary On Nov 19, 2009, at 8:39 PM, Don Bertolette <[email protected]> wrote: > Andrew- > When I trained satellite image classifications on NW Mass forests, I > noticed a trend towards O-G being located in upper slope northern > exposure coves... > Don > > Sent from Don's iPhone 3GS... > > On Nov 19, 2009, at 4:32 PM, Andrew Joslin <[email protected]> > wrote: > >> Definitely, that thought occurred to me. There does seem to be some >> correlation to greater height potential on slopes, don't know how >> much >> it's been explored. My understanding is that Hyperion (Coast Redwood) >> the current world height champ is a relatively young tree (as >> redwoods >> go) on a steep slope. Compare that to older not quite as tall Coast >> Redwood more in the river bottoms. It could be an aberration with no >> relationship to location ie: slope vs. low flats. Your theory is a >> good >> bet in Dunbar though. >> -AJ >> >> DON BERTOLETTE wrote: >>> Andrew- >>> Taking a page from A Sand County Almanac, where Aldo admonishes us >>> to >>> "think like a mountain", if we were to think like a logger a century >>> or two ago, we'd be thinking about a winter logging operation, going >>> into a valley where we could, and plucking out a hickory or an >>> oak, depending on what species the market was seeking, and pulling >>> it >>> out by horse or mule, or oxen on a sled. The technology for getting >>> trees further up the slopes was yet to come... >>> -Don >>> >>>> Date: Thu, 19 Nov 2009 11:23:16 -0500 >>>> From: [email protected] >>>> To: [email protected] >>>> Subject: Re: [ENTS] Meet the Neil Pederson Pine >>>> >>>> It's so interesting that the tallest Dunbar Brook pines are up on >>>> the >>>> slopes and not in the bottom along the creek. I would've thought it >>>> would be the other way around. Perhaps there is a sweet spot >>>> between >>>> being too high on the slope and suffering wind damage but still >>>> being >>>> high enough to get more sunlight as opposed to the pines in shadow >>>> down >>>> in the bottom by the brook. Thoreau and Grandfather pines might be >>>> demonstrating that principle, both on the slope, the Grandfather >>>> higher >>>> up, the upper crown is more sparse (limb break out) and not as >>>> tall as >>>> Thoreau despite appearing to have equivalent age or maybe even >>>> being an >>>> older tree than Thoreau. >>>> >>>> Something else to consider is that we're only looking at a 100+ >>>> year >>>> cycle, it may be that the pines in the bottom of the cove are >>> turtles in >> > > -- > Eastern Native Tree Society http://www.nativetreesociety.org > Send email to [email protected] > Visit this group at http://groups.google.com/group/entstrees?hl=en > To unsubscribe send email to [email protected] -- Eastern Native Tree Society http://www.nativetreesociety.org Send email to [email protected] Visit this group at http://groups.google.com/group/entstrees?hl=en To unsubscribe send email to [email protected]
