4/26/2010

Windstorms And Windsnap



This hefty hemlock came down in a recent storm and blocks a main trail I use when cycling. The trunk is snapped off a couple of meters up, and the heartwood looks punky and soft.









I don't think a bike helmet would be much protection if one happened to cycle down this trail at the wrong time.















For more on downed trees and large diameter woody debris read here.



The forecast is for SE winds up to 90km per hour tonight so I suspect there will be more downed trees. Hopefully not many of them will cross trails or take power lines with them.

4/24/2010

Consider The Life Of Trees

Consider the life of trees.
Aside from the axe, what trees acquire from man is inconsiderable.
What man may acquire from trees is immeasurable.
From their mute forms there flows a poise, in silence,
a lovely sound and motion in response to wind.
What peace comes to those aware of the voice and bearing of trees!
Trees do not scream for attention.
A tree, a rock, has no pretense, only a real growth out of itself, in close communion with the universal spirit.
A tree retains a deep serenity.
It establishes in the earth not only its root system but also
those roots of its beauty and its unknown consciousness.
Sometimes one may sense a glisten of that consciousness, and with such perspective, feel that man is not necessarily the highest form of life.

- Cedric Wright

Click on image to enlarge.















4/18/2010

Powerful Winds Cause Damage On Vancouver Island



The biggest storm of 2010 blew through the south island April 2nd leaving havoc in its wake. Damage was extensive in Mill Bay with large waves stranding boats, docks, and logs high up on the beach. Lighter damage was widespread and 90 000 people were without power for up to 24 hours or more. See video here.



Winds in the upper reaches of the Beaufort Scale really howl out here where the sea squalls slam right into the rocks and trees. Weather watchers were saying that the April 2nd storm caused the worst damage the south island has seen since the storm of December 2006.



Wind is natures arborist and the recent 90km/hr winds gave the south coast trees and forests a trimming. Many trees were toppled, including some in urban areas that fell on buildings, power lines and roadways.



Many other trees were trimmed by the gusts, and as usual after every big storm, roads running beside forested areas were completely covered with smaller debris.



The December 2006 storm was much more powerful with winds topping 150km/hr in places. Thousands of trees were blown down including many across roads, highways and trails. Extensive recovery work had to be done in order to open local beaches and the Juan de Fuca and West Coast trails.





Hundreds of thousands of homes along the Pacific coast were without power. Those in remote places were off-grid for up to a week or more. A building on the waterfront in Sooke took the full brunt of the west winds coming off the harbour and part of the roof was lifted off and deposited in the parking lot. Vinyl siding was strewn around the neighbourhood and hung from trees.


Across the south island and on the mainland trees crashed into homes and crushed cars. As much as I love big trees, there are hazards associated with big trees in urban areas. Trees in the coastal forest are not deeply rooted - they tend to have root pancakes rather than root balls since most have no tap root. A once in 50 year storm therefore can have a huge impact on trees and forests.





Trees that are toppled, roots and all are called blow down. Blow down areas can be like mini clear cuts with all the trees left behind in a jumbled mass. Trees that break off up the trunk are called wind snap. In urban areas such trees are removed. In Sooke after the 2006 storm, the public came out en masse and fired up the big chain saws to tackle the decades old trees blocking roads and driveways.






Out in the forest, though, the trimming and falling of trees by the wind is a re-occurring, natural event that passes with no fanfare. This ecosystem is ever-changing, and downed trees and standing wind snapped trunks simply add to the richness and diversity in a constantly cycling self-sustaining system.

4/13/2010

Sign The Ancient Forest Alliance Petition




Click on the AFA Photo above to link to their online petition page.

Chances are if you have landed on VIBT you like big trees... alive. There are many organizations that work to ensure the big trees stay standing. One of these groups, the recently formed Ancient Forest Alliance, is asking for your signature on a petition to the B.C. government. The AFA is asking our elected representatives to do what I dreamed about on my April Fools Day post - protect what is left of our ancient trees and forests.

Petition to Protect British Columbia's
Endangered Old-Growth Forests and Forestry Jobs

The Ancient Forest Alliance petition is calling on the government to:

Undertake a Provincial Old-Growth Strategy that will inventory and protect the remaining old-growth forests in regions where they are scarce (eg’s. Vancouver Island, Southern Mainland Coast, Southern Interior, etc.)

Ensure the sustainable logging of second-growth forests, which now constitute the majority of forest lands in southern BC.

End the export of BC raw logs to foreign mills in order to ensure a guaranteed log supply for BC wood processing facilities.

Assist in the retooling of coastal BC sawmills and the development of value-added facilities to handle second-growth logs.

Undertake new land-use planning processes to protect endangered forests based on new First Nations land-use plans, ecosystem-based scientific assessments, and climate mitigation strategies through forest protection.

Find out how you can support AFA, their petition, and ancient forests across BC by visiting the AFA petition website.

4/05/2010

Trees Critical For Civilization


Trees and forests have always been critical to human civilization. Shown above is the huarango tree, native to Peru. It has the deepest roots of any tree, deeper than most trees are tall, and lives 1000 years.

When the Nazca people cut their huarango forests to make way for increased agriculture around 400 AD, they experienced a few short years of benefits, then the people disappeared for all time.

When the trees go, so go the people.

4/01/2010

B.C. Government Puts Moratorium On Logging Old Growth

Photo by: Scott McGeachy


Environmentalist and tree huggers, young and old alike, rejoiced when the government of British Columbia announced today that effective immediately it would put an end to the logging of old growth forest across the province.

Pat Bell, Minister of Forests and Range said, "After sitting down with feedback groups our government has decided to listen and do what the people of this great province have been asking for - put an end to the destruction of our dwindling old growth forest resources."

"About 75% of the original productive old growth forests have been logged on Vancouver Island for example," Bell exclaimed passionately, "and we have to save what is left for our children, and their children. We are thinking at least 7 generations ahead in all our planning. Logging old growth is an old idea that we don't need any more."

He went on to explain that the government has decided to listen to groups such as Western Canada Wilderness Committee, Ancient Forest Alliance, and others, and that the new plan considered old-growth forests to be vitally important for sustaining a diverse ecosystem, tourism, clean water, First Nations traditional cultures, and would therefore be protected henceforth for all time.

Ken Wu, interviewed in the now protected Avatar Grove said, "Wow", and announced the formation of his new group No Oil Tankers Alliance.

The government is in the process now of shifting to the sustainable use of second and third growth forest resources in B.C.

3/30/2010

Moss, Mushrooms, And Massive Trees


This mossy mushroom patch was on the shake roof of a gazebo. The photograph was taken at Francis King Regional Park, Saanich B.C., on the Elsie King Trail. The 750m accessible trail makes a beautiful loop through the tall trees.

Across the road reside some of the largest Douglas fir in the region, one of which is listed as the 13th largest in BC. Bring your camera.

3/28/2010

Cedars: Old Timers Of The Ancient Forest






Western red and yellow cedars are the longest lived trees in the ancient coastal forest. Many of these eon-busting trees have been documented to be over 1500 years old and going strong. Older individuals are difficult to date accurately because the core of older cedars is often hollow. As the centuries pass, each tree takes on a grandly buttressed and spiky-topped character.


These persistent survivors only grow to great age in ancient forests that have been fire-free and undisturbed for a long time. Some areas along the Pacific coast have not seen large fires for up to four thousand years due to the wet and humid conditions.


The map to the right shows the range of the Western red cedar. All of Vancouver Island is prime growing territory - is a record-breaking monster cedar lurking here, yet to be discovered? Tree experts think that may be the case, and hope that the loggers don't beat them to such a tree before they discover it.





It is conceivable that some cedars have continued to live and grow for over 2000 years. No other tree lives as long in this forest. In old age these magnificent trees also become the largest tree amongst the old growth. The record cedar contains enough wood to build five 1000 sq ft houses.








Nolan Creek Cedar

As of 2009, the three largest known western red cedar were:

  1. Quinalt Lake Cedar (Quinalt Lake Rain Forest-Olympic National Park) 17,650 Cubic feet
  2. Cheewhat Lake Cedar (West Coast Vancouver Island-Pacific Rim National Park) 15,870 Cubic feet
  3. Nolan Creek Cedar (Nolan Creek) 15,330 Cubic feet http://en.wikipedia.org/wiki/Thuja_plicata





As a Western red cedar ages the crown form changes (see top diagram). The first few centuries the crown is uniform. It is only with great age that individual character and spiky, or candelabra, tops emerge. Such uniquely-shaped cedars are often seen in ancient stands.

"Cedar often has a candelabra-like appearance, because the top leader dies, as do the side branches that take over. The reason for this is not really understood, but it may be a lack of nutrients caused by growing in wet, acidic soils or perhaps drought stress caused by a shortage of oxygen to the roots, which makes it difficult for the tree to take up water."

The largest cedar in Sunriver Park along the Sooke River has a top that is difficult to see due to surrounding forest. Yesterday, while photographing a Big leaf maple just starting to bud out, I noticed a candelabra cedar top poking up from the forest.



When I got home and started looking at the photos on my computer I was amazed that I had never noticed this feature of the forest before.








Cheewhat Cedar, Pacific Rim National Park

There it was - the top of the old cedar next to the trail. And it shows the typical characteristics of an older-timer. The candelabra top lends more evidence to my feeling that the cedar is a very old tree.

I will be watching for candelabra topped cedars on my upcoming tree adventures. Such sculpted tops truly are badges of honour for these longest living, largest trees of the coastal rain forest.

3/23/2010

Impressive Douglas Fir Snag


This is actually a huge, short snag that is broken off just up from the top of the photo. The massive bole lies down the slope to the right, and is now large diameter woody debris enriching the forest floor structure. This ancient Douglas fir probably experienced a catastrophic event during a winter storm. Perhaps it was diseased which would make it more susceptible to wind.

This impressive snag is in a very narrow strip of old forest that has been cleared on either side, which made it vulnerable to wind. Other large trees in this area are likely to blow down, too. The fire scars on the foot thick cork-like bark above my head are pretty impressive. The burns record at least one forest fire.

In the recent past the Sooke area was carpeted in trees this large and larger.

3/20/2010

Large Old Snags Very Important To Wildlife



Snags, or standing dead trees, like the one near the center of the above photograph, provide food and shelter for a richness of life. Birds nest in snags, and small mammals make homes there as well. Moss and lichen will live on the bark, while fungus and insects soften the core of the tree. A large snag could stand for 150 years or more before it finally topples to the forest floor.



At right is a blow up of the above tree showing a large diameter hole near the top. Woodpeckers, like the Pileated woodpecker, excavate holes in snags for feeding and nesting. The woodpecker digs a new nest hole each year so in subsequent years other birds or mammals may move into old cavities.


Snags are so important to forest ecology that British Columbia has a program to tag and protect such trees as "Wildlife Trees". These valuable resources are marked with a yellow symbol which identifies and protects them.




Many forest creatures can only live in large, old trees, and snags can provide the height and structure they require. The Spotted owl is an example of a bird that requires old trees for nesting, often setting up in snags, living in the hollow of the broken top.





Bald eagles use large trees for perching and nesting, often having a second nest nearby in a companion big tree. Eagle nests can weigh up to 1000 pounds - you need a big tree to be able to hold such a massive structure of branches.






The threatened Marbled Murrelet also needs old growth trees.

"Throughout the murrelets’ North Pacific range, most occupied nests have been found in tall trees. They were simple cups in the moss on thick branches, 20 to 40 m above the ground. Only fairly old Douglas fir and Sitka spruce have branches thick enough for murrelet nests, although other trees may offer suitable platforms or cavities.

Trees with thick branches near the top usually occur in stands of old growth and mature forests that are rapidly being cut for timber. If it turns out that British Columbia’s murrelets are not concentrated in colonies and have no alternative nesting habitat, the need to protect sites for murrelet nests will be another reason to preserve more of British Columbia’s coastal old-growth forests. However, a great many areas still remain to be explored for nests." http://www.hww.ca/hww2.asp?id=55&cid=7

When we save large old trees, whether they are dead or alive, we are also saving a vast richness of life that depend on such trees. Each ancient tree is an ecosystem to itself, and we are just now realizing their true importance. The snag pictured at top enriches Francis/King Regional Park, Saanich B.C.