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Springer Old Growth Forests - Chapter 8 doc

Springer Old Growth Forests - Chapter 8 doc

Springer Old Growth Forests - Chapter 8 doc

... amounts of woody detritus in old- growth forests and thenC. Wirth et al. (eds.), Old Growth Forests, Ecological Studies 207, 159DOI: 10.1007/9 78 3‐540‐92706 8 8,# Springer Verlag Berlin Heidelberg ... Carbon Dynamics of Old Growth Forests 165 Chapter 8 Woody Detritus Mass and its Contributionto Carbon Dynamics of Old- Growth Forests: the Temporal ContextMark E. Harmon 8. 1 IntroductionWoody ... the old- growth stage, high biomass in old- growth stands should lead to a high rate of absolute mortality inputs. 8 Woody Detritus Mass and its Contribution to Carbon Dynamics of Old Growth Forests...
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Springer Old Growth Forests - Chapter 10 doc

Springer Old Growth Forests - Chapter 10 doc

... was shown that fine root growth, mortality and decompositionin 4-year -old stands was as high, if not higher, than in 1 0-, 2 9-, or 8 0- to 10 0- year -old stands of an oak-hickory forest.Wheredataonfinerootbiomassfromthe ... Rooting Densityin Old- Growth Forests Old- growth forests are the result of the long-term absence of stand-replacing dis-turbances (see Chap. 2 by Wirth et al., this volume). The old trees may comprise ... temperate forests in relation to soil acidity andfertility, climate, age and species. Prog Bot 64:405 4 38 10 Rooting Patterns of Old Growth Forests 227 Chapter 10Rooting Patterns of Old- Growth Forests: is...
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Springer Old Growth Forests - Chapter 16 doc

Springer Old Growth Forests - Chapter 16 doc

... patterns through the conversion of old- growth forests into degradedsecondary forests, followed by the expansion of pastures and forestry plan tations. Old- growth forests have declined to less than ... study old- growth evergreen, montanetemperate forests in the unpolluted coastal range of Chiloe´island (42S), southernChile. This project, together with other studies in lowland old- growth forests, ... everreaching the old- growth stage because of the prevalence of stand-devastating eventsin Andean forests (Veblen and Ashton 19 78; Veblen et al. 1 981 ; Armesto et al.1996a). Volcanism, earthquake-caused...
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Springer Old Growth Forests - Chapter 21 doc

Springer Old Growth Forests - Chapter 21 doc

... of small-scale disturbances and gap-phase dynamics.21.4 The Fate of Old- Growth Forests Worldwide21.4.1 Current Status of Old- Growth Forests Evaluating the current status of old- growth forests ... Politics and the Future of Old- Growth Forests Old- growth forests provide important services to human society, many of which arediscussed in this book. Destroying old- growth may initially serve ... Æ 18 (n = 17; transition), to 12 Æ 24 (n =14;early old- growth) , to 18 Æ 29 g C m–2year–1(n = 4; late old- growth) (Fig. 21.2).The chronosequence data show that, during the early old- growth...
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Springer Old Growth Forests - Chapter 1 pot

Springer Old Growth Forests - Chapter 1 pot

... interaction for the functioning and main-tenance of old- growth forests. Second, they take a closer look at the peculiarities ofnitrogen dynamics in old- growth forests under the low levels of nitrogen ... protection of old- growth forests, and present an encouraging example. Finally, Grace and Meir(Chap. 17) close this part with a chapter on old- growth dynamics in global tropical forests. They ... devoted to the old- growth forests of the Canadian boreal forest. Old- growth boreal forest is considered rare since disturbances occur too frequently toallow forest stands to reach old age. The...
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Springer Old Growth Forests - Chapter 2 pot

Springer Old Growth Forests - Chapter 2 pot

... of forests that were labelled as old- growth . Altogether we identified 1 18 studies where ages of old- growth forests were reported, half of which were temperate or high-elevation coniferous forests and ... old are forests that were labelled old- growth really?Covering three time periods (1940 1960, 1970 1 980 and 1995 2005), wesearched for papers containing the keyword old- growth (or old growth ) ... terminate the old- growth stage or developmenttowards it. Obviously, the potential of a forest region to host old- growth forests depends on two rates: (1) the time it takes for old- growth to develop,...
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Springer Old Growth Forests - Chapter 3 pdf

Springer Old Growth Forests - Chapter 3 pdf

... the mere presence of old trees does not automatically indicate old- growth conditions (see Chap. 2 by Wirth et al., this volume), it is fair to saythat many old- growth forests contain a high ... Hills, Nevada, USA 88 8Pinus albicaulis Western Alberta, Canada 88 2Pinus ponderosa Central Utah, USA 84 3Pinus nigra Vienna, Austriac 83 3Picea engelmannii Western Alberta, Canada 780 Pinus cembra ... are generally shorter-lived than trees (Schweingruber 1995) and dwarf-shrubs(see below). The oldest known shrub s grow in Siberia. Hantemirov et al. (2003)found an 84 0-year -old Juniperus sibirica....
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Springer Old Growth Forests - Chapter 4 ppt

Springer Old Growth Forests - Chapter 4 ppt

... 25.2 27.7 <0.001LAI 176.26 18. 28 9.64 <0.001 97.7 25.7 3 .8 <0.001P 55.39 25.92 2.14 0.03 48 93.0 25.7 3.5 <0.001T 1 98. 80 23 .87 8. 33 <0.001Age 43. 68 16.00 2.73 0.0075df 109 75Residual ... decrease in net primary productivity in old- growth forests if it occurs is related more to decreasing photosynthesis in old and tall trees (as well as in old- growth forest canopies) than to increasingrespiratory ... 0.131T 137.4 16.5 8. 33 <0.001Age 35.5 12.0 2.96 0.0035df 1 68 76Residual 154.6 188 .2AdjustedR20.510 0.216NPP Coniferous forests Deciduous forests Intercept 510.94 15.30 33. 38 <0.001 697.9...
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Springer Old Growth Forests - Chapter 5 ppt

Springer Old Growth Forests - Chapter 5 ppt

... 20 1- to 400-year -old stands (early old- growth) are either carbon-neutral or still accumulating carbon. Few successionsexhibited a pronounced late-successional decline. These results are consis-tent ... progressing from early- to late-successional conifers, and fromearly-successional hardwoods to late-successional conifers, tended to accumu-late carbon during the early old- growth phase (201 400 ... in woody-detritus production:self-thinning and whole-patch mortality. Self-thinning is represented as a carbon5 The Imprint of Species Turnover on Old Growth Forest Carbon Balances 85 Fig....
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Springer Old Growth Forests - Chapter 6 ppt

Springer Old Growth Forests - Chapter 6 ppt

... Comparisons with second -growth forests arealso often made to highlight the uniqueness of old- growth forests. 6.2 Structural and Compositional Features of Old- Growth Old- growth forests possess distinct ... environment in old- growth forests, (2) the particular understorey light condi-tions found under such forests, and (3) the unique understorey vegetation assem-blage that can develop in old- growth forests. ... differbetween second -growth and old- growth forests, in boreal (Aubin et al. 2000),northern temperate deciduous (Angers et al. 2005), and tropical (Montgomeryand Chazdon 2001) forests. Old- growth forests...
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