Next winter, the planting will be a mixture of Sitka spruce
, Scots pine, birch, aspen, oak and alder.
"Scientific evidence shows that Sitka spruce
is considered to be of very low susceptibility to P.
In the centre is a big spread of seemingly random patches of scrubby birch, sallow and Sitka spruce
linked with open patches, often dominated by heather.
With the exception of 3 nests in a single old-growth Douglas-fir, all of the tree vole nests that we located were in Western Hemlock (n = 16) or Sitka Spruce
(n = 14).
decreases in strength the further north it is grown in Britain," WKW's Dainis Dauksta told architects, specifiers and Welsh timber sector leaders at a milestone event to showcase the new system at the North Wales visitor centre.
A recent study of five species in Ireland, including Sitka spruce
, showed a trend for moisture content of freshly felled trees to peak in the summer months of May to August, fall in September and October, remain low over winter, and rise again in the spring (Kent et al.
The Tongass also produces prized wood: yellow cedar, western red cedar, western hemlock, and lastly, Sitka spruce
, commonly used for lumber but also a strong and lightweight material that, in the era before aluminum, was used in airplane construction.
The effect of monoterpene concentration in Sitka spruce
(Picea sitchensis) on browsing behaviour of red deer (Cervus elaphus).
I noted that an exposed plantation of lodgepole pine near Alemoor Loch had been badly affected, whereas in the same plantation, sitka spruce
trees were relatively unscathed.
"If fuel reduction treatments are effective in reducing fire severities in the western hemlock, Douglas-fir forests of the west Cascades and the western hemlock , Sitka spruce
forests of the Coast Range, it will come at the cost of long-term carbon storage, even if harvested material are used as biofuels," they added.
On the final page is a list of objects for the reader to seek and find, ranging from general (butterfly) to very specific (Sitka spruce
Greenpeace has been in talks with Sealaska Timber Corporation, one of the biggest logging operations in Alaska, to get 190,000 acres of the company's privately owned Southeast Alaska timberland--a prime source of Sitka spruce
, a wood coveted by instrument makers for its use in guitar soundboards--certified by FSC.