SK2890 : Alder roots in the river Loxley

taken 6 years ago, near to Dungworth, Sheffield, Great Britain

Alder roots in the river Loxley
Alder roots in the river Loxley
Alder can form a tangle of adventitious roots when periodically submerged in water. The water level of the river Loxley is controlled by several reservoirs upstream and millponds with sluice gates downstream of this point. The resulting flow conditions favour the formation of such a root system. Unlike normal roots, adventitious roots grow from a pre-existing stem of the plant, are capable of photosynthesis and do not usually support the tree structurally. They allow the plant to reach nutrients independent of the water level.
(Thanks to Robin Stott to pointing me to this interesting phenomenon during a common walk after the Geograph conference.)
Loxley Valley Walk, Geograph Conference 2012 :: SK2989
A selection of images taken by various Geograph members on an organised walk up the Loxley valley on the day after the 2012 conference in Sheffield.
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SK2890, 141 images   (more nearby )
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Date Taken
Thursday, 5 April, 2012   (more nearby)
Monday, 9 April, 2012
Geographical Context
Lowlands  Rivers, Streams, Drainage 
River (from Tags)
Place (from Tags)
Storrs Bridge 
Tree (from Tags)
Subject Location
OSGB36: geotagged! SK 287 903 [100m precision]
WGS84: 53:24.5728N 1:34.1475W
Camera Location
OSGB36: geotagged! SK 287 903
View Direction
West-northwest (about 292 degrees)
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Other Tags
Geograph Conference  Adventitious Roots 

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