Productivity, buffering capacity and resources of grey alder forests in Estonia.
The dynamics of biomass production in relation to foliar and root traits in a grey alder (Alnus incana (L.) Moench) plantation on abandoned agricultural land.
Biomass equations for determining fractions of common and grey alders growing on abandoned farmland and some practical implications.
Self-binding board samples hot-pressed from SE grey alder
fibres (B5) comply with requirements for application in loaded construction in dry environment (EN 622-2:2004).
Grey alder was either injured or dead in both OA and NA.
OA NA U-value Pine 904 [+ or -] 162 1550 [+ or -] 146 6.7290 Spruce 4655 [+ or -] 948 2334 [+ or -] 230 -1.8487 Silver birch 298 [+ or -] 70 343 [+ or -] 64 3.5385 Downy birch 2441 [+ or -] 626 1898 [+ or -] 238 2.1439 Aspen 159 [+ or -] 39 217 [+ or -] 55 1.3537 Willows 255 [+ or -] 165 441 [+ or -] 106 4.5307 Rowan 928 [+ or -] 168 1490 [+ or -] 211 4.2995 Juniper 57 [+ or -] 52 23 [+ or -] 14 1.4411 Grey alder 46 [+ or -] 23 188 [+ or -] 65 3.6821 Other spp 23 [+ or -] 14 P-value Pine <0.0001 Spruce 0.0645 Silver birch 0.0004 Downy birch 0.0320 Aspen 0.1758 Willows <0.0001 Rowan <0.0001 Juniper 0.1495 Grey alder 0.0002 Other spp Table 2.
Grey alder shares the broad climatic relationships of birch, but it is more shade intolerant and thermophilous and restricted to sites with almost bare mineral soil.
The shade intolerance of the grey alder suggests that the mixed stands prevailing in the transition between pure pine and birch forest [approximately equal to]7500-5000 yr BP were fairly open.
The ecological status of grey alder (Alnus incana (L.) Moench) in the upper subalpine birch forest of the central Scandes.
In both managed and natural forests, moose had only occasionally impacted Norway spruce and grey alder. However, regeneration of the latter species was not abundant but instead formed sparsely-distributed groups.
On the other hand, grey alder, not commonly browsed by moose, is ranked lower in numbers per hectare than moose-selected trees (Finnish Forest Research Institute 2001).
In Estonia, Tullus and others  reported LAI for a natural 18-year-old grey alder stand to be 3.8 [m.sup.2] [m.sup.-2].
It has been shown that grey alder can cover a major part of its N demand via biological fixation [39-42].
Budgets of nitrogen fluxes in riparian grey alder forests // Arch.
Productivity, buffering capasity and resources of grey alder forests in Estonia // Swed.