Radiation interception and productivity of willow.

Published online
17 May 1988
Content type
Journal article
Journal title
Journal of Applied Ecology

Cannell, M. G. R. & Milne, R. & Sheppard, L. J. & Unsworth, M. H.

Publication language


Stands of Salix viminalis growing near Edinburgh, UK, were studied in 1984 (1st yr growth from 2-yr coppice stumps) and 1985 (1st yr growth from cuttings). Accumulated DM was linearly related to accumulated intercepted radiation until heavy leaf fall, with a slope of 0.99 g/MJ in 1984 (11 t/ha annually) and 1.38 g/MJ in 1984 (14 t/ha annually); greater efficiency in 1985 is attributed to better water and nutrient supplies and lower rates of incoming radiation. Light interception (and hence DM production) was relatively insensitive to increases in LAI above 4.5, or delayed leaf fall, but was increased greatly by earlier canopy development.

Key words