Methods of Dendrochronology:Applications in the Environmental Sciences.
Editors: Cook and Kairiukstis 1992
Chapter 2.4 Dendroclimatological Study of Prostrate Woody Plants.

May be of interest.

Yes – Payette is very good at discussing the full range of potential factors affecting tree growth, from water availability and forest fires to bug infestations and regional disturbances, in addition to potential temperature changes. Unlike some others in the field, though, he is quite prepared to accept that, for the areas he is studying, the data shows there was a MWP and a LIA, and he is not trying to “eliminate” them. I’m not in a position to comment on how well (or if) he quantifies the different effects, though. I’ve certainly not waded through all of his available work, which appears to stretch back to the 1980s.

His list of publications is long; there is at least one where he is a coauthor, along with Rob Wilson & others, of an article that tries to make sense of the divergence issue: Wilson, R, D’Arrigo. R, Buckley, Büntgen, U, Esper, J, Frank, D, Luckman, B, Payette, S., Vose, R. and Youngblut, D. A matter of divergence: tracking recent warming at hemispheric scales using tree-ring data. 2007. Journal of Geophysical Research, 112. That paper I think was examined by Steve (not surprisingly!) at: http://www.climateaudit.org/?p=1834.

Для лесных массивов характерно образование на молодом аллювии высокоплотных и продуктивных древостоев, не типичных для высоких широт.

Forest (adjective) massives (subject)…can’t help it.

climate at tree line was drier and warmer before 900 cal. yr BP

Keep this thought in mind …

“As was the case in our study, the magnitude and timing of post-fire deforestation throughout the northern boreal biome were closely linked to the climatic deterioration that prevailed during the Little Ice Age (Overpeck et al. 1997), i.e. after the Medieval Warmth (ca 900–1200 years ago) and before recent warming commencing at the end of the nineteenth century. The lack of post-fire spruce regeneration from 900 cal. yr BP to present is a direct indication that climatic conditions deteriorated after the Medieval Warmth. According to the distribution of fire dates and tree regeneration, the climate at the tree line was drier and warmer before 900 cal. yr BP.

[…]

According to fire and tree regeneration data from our study, the northern part of the forest tundra in Eastern Canada has been heavily deforested over the last millennium. The main direct cause is climate deterioration coinciding with the phasing-out of the Medieval Warmth and incidence of the Little Ice Age.”