Search found 499 matches

by gnmcmartin
Thu Sep 27, 2018 8:42 am
Forum: General Discussions
Topic: Norway spruce growth Edwards, New York
Replies: 18
Views: 2196

Re: Norway spruce growth Edwards, New York

Joshua: At SUNY Syracuse, considerable work has been done on Norway spruce, including growth curves. Those show an absolutely steady growth rate from the time they are 4.5 feet tall for the next 50 years. There is no "bending over" of the curve at that point, and on the best sites they reached almos...
by gnmcmartin
Tue Sep 25, 2018 12:59 pm
Forum: General Discussions
Topic: Norway spruce growth Edwards, New York
Replies: 18
Views: 2196

Re: Norway spruce growth Edwards, New York

Joshua: Well, I have almost 300 acres encompassing just about every forest type in my area, plus beaver ponds and beaver meadows, fields and what all. Yikes! So, my Norway spruce groves while they, in themselves, are of limited biological diversity, on the landscape scale, they add to it. Years ago ...
by gnmcmartin
Tue Sep 25, 2018 11:34 am
Forum: Australia and New Zealand
Topic: Fastest growing tree on the planet?
Replies: 25
Views: 3646

Re: Fastest growing tree on the planet?

Bob and NTS folks: I want to make sure that my last post about uneven-aged hardwood management research doesn't leave a false impression. The study I cited involves a more intensive form of management and harvesting than is actually needed. A very basic single tree selection "system" can be much, mu...
by gnmcmartin
Tue Sep 25, 2018 10:42 am
Forum: General Discussions
Topic: Norway spruce growth Edwards, New York
Replies: 18
Views: 2196

Re: Norway spruce growth Edwards, New York

Joshua: I am not sure how many acres of Norway spruce you have, so I am not sure if you can leave a part as a dense stand. I have several acres--maybe close to 8 or so. What I have done is thinned and pruned for the 33 years I have owned this parcel. My trees are about 50 years old and are now about...
by gnmcmartin
Mon Sep 24, 2018 1:19 pm
Forum: Australia and New Zealand
Topic: Fastest growing tree on the planet?
Replies: 25
Views: 3646

Re: Fastest growing tree on the planet?

Bob: Some really good work has been done with uneven-aged hardwood management, and studies of this go back many years. But this has nothing to do with MAI and CMAI calculations. About 42 years ago I was given a tour of two such uneven-aged hardwood research plots by H. Clay Smith. I have a copy of a...
by gnmcmartin
Sun Sep 23, 2018 10:18 pm
Forum: Australia and New Zealand
Topic: Fastest growing tree on the planet?
Replies: 25
Views: 3646

Re: Fastest growing tree on the planet?

Bob: At this point, I think I am getting way out of my depth on the MAI and CMAI calculations and applications, and how they affect rotation length and/or harvesting schedules for the forests you see in MA. I am getting old, and much of what I know is out of date. I was speaking strictly of those ca...
by gnmcmartin
Tue Sep 18, 2018 10:24 pm
Forum: Forest Management
Topic: Releasing Hemlocks from Understory
Replies: 6
Views: 944

Re: Releasing Hemlocks from Understory

Joshua: I read of one study that said that long suppressed hemlocks when released make excellent growth. It was even reported that hemlocks that spent at least some of their time in suppression, made better eventual growth than trees no so suppressed. But there was no mention of how long such suppre...
by gnmcmartin
Tue Sep 18, 2018 9:02 pm
Forum: Australia and New Zealand
Topic: Fastest growing tree on the planet?
Replies: 25
Views: 3646

Re: Fastest growing tree on the planet?

Bob: No real insights or specific knowledge. But, I do know that while the sites for east coast species are virtually always rated at a base age of 50 years, thus a very good white pine site will be rated as 100, meaning the best dominant trees in an acre will be 100 feet tall at 50 years. Because w...
by gnmcmartin
Tue Sep 11, 2018 9:42 pm
Forum: Trees and Forests - General Discussion Forums
Topic: Crown crowding...
Replies: 3
Views: 1289

Re: Crown crowding...

Don: Having done thinning TSI in specific forests, both hardwoods and conifers, continuously for up to 45 years in some cases, maybe my observations can be useful here. BUT, I have not taken any precise measurements, and not taken careful notes of my more casual observations. Anyway, for what it's w...
by gnmcmartin
Sat Jun 23, 2018 1:39 pm
Forum: Invasive Species and Tree Diseases
Topic: White Tailed Deer Damage to Northeastern Forests
Replies: 21
Views: 2976

Re: White Tailed Deer Damage to Northeastern Forests

Joshua: Thanks for posting this topic. I have been concerned about the deer populations and the damage they do for over 40 years. I try to discuss the problem with the state foresters, but they say they have little or no influence on those who support the "deer protection laws." My timberland is on ...

Go to advanced search