Yukon Goldrush - a photo on Flickriver

Yukon Goldrush

            2024-09-07, Day 1
Brilliant yellow leaves of Balsam Poplar (Populus balsamifera) line a mining road that ascends the lower reaches of the Duke River with the leading edge of the Donjek Range slanting into the distance, Kluane First Nation, Yukon.

Balsam Poplar have earned a reputation for flourishing on flood plains and other disturbed, rocky soils, and this habit is illustrated clearly here. This particular species produces leaves that, in addition to turning an ostentatious shade of yellow in the autumn, are filled with various phenolic compounds, both tannin and otherwise (tannins are one kind of phenolic polymer that many plants produce, and most people encounter phenolics in apples, tea, and wine). When I started my graduate work investigating how plant species influence nutrient cycling in soils, I read extensively about how Balsam Poplar phenolics reduce nutrient availability and promote the build-up of soil carbon, especially in soils where alder are growing. As it so happens, alder are the first trees that typically colonize a flood plain, and they are routinely out-competed by Balsam Poplar (and later Spruce) in areas with longer disturbance intervals.
   

Taken in: Canada / Yukon / Burwash Landing (show map)

Taken on: September 7, 2024

Tags:

Balsam Poplar

Canada

Donjek Route

Duke River

Dän Shur

Fall

Kluane Range

Landscape

Populus balsamifera

Yukon

autumn

autumn color

autumn leaves

backpacking

clouds

fall color

mountains

wilderness

Burwash Landing « less

Sets appears in: • Flowers and Plants • Mountains and Sky more » • Yukon « less

Groups appears in: • Secret Life of Plants • Mountains more » • Landscape photography • Landscape Exploration • The Nature Conservancy • Landscapes!!! • Landscape Beauty ! • Sky glory • A NATIONAL PARK • Mountains and Forests of the U.S. and Canada • My favourite Photographers • ☆The Power of Now / Die Kraft der Gegenwart ☆ « less

Camera: Nikon Z 6, f/11.0, 1/160 sec, 46mm, ISO 100 (more info) (hide info)

Camera:	Nikon Z 6
Lens:	NIKKOR Z 24-70mm f/4 S
Aperture:	f/11.0
Exposure Time:	0.006 sec (1/160)
Focal Length:	46mm
ISO:	100
Exposure Bias:	0 EV
Flash:	No Flash
Exposure Program:	Manual
Exposure Mode:	Manual
Metering Mode:	Multi-segment
White Balance:	Auto
Saturation:	High
Sharpness:	Hard
Color Space:	sRGB
Software:	Adobe Photoshop Lightroom Classic 13.5.1 (Macintosh)
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