Springer Old Growth Forests - Chapter 16 doc

... especially in old- growth temperate rainforests (Table 16. 2), determines a carbon storage capacity that can be several times greater than that of second -growth forests. Long tree life spans (Table 16. 3) ... patterns through the conversion of old- growth forests into degraded secondary forests, followed by the expansion of pastures and forestry plan tations. Old- growth for...

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... reduction in NPP or an increase in decom- position rate-constants as forests age could lead to mid-successional forests having more woody detritus than old- growth forests. Repeated disturbance was ... and its Contribution to Carbon Dynamics of Old Growth Forests 165 Chapter 8 Woody Detritus Mass and its Contribution to Carbon Dynamics of Old- Growth Forests: the Tempora...

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... Rooting Density in 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 ... was shown that fine root growth, mortality and decomposition in 4-year -old stands was as high, if not higher, than in 1 0-, 2 9-, or 8 0- to 10 0- year -old stand...

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... of small- scale disturbances and gap-phase dynamics. 21.4 The Fate of Old- Growth Forests Worldwide 21.4.1 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 are discussed in this book. Destroying ol...

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... interaction for the functioning and main- tenance of old- growth forests. Second, they take a closer look at the peculiarities of nitrogen 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 globa...

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... Boreal old- growth forests were somewhat younger (median age 224 years, inter-quartile range 150 300 years), whereas tropical old- growth forests tended be older (median age 400 years, inter-quartile ... young old- growth forests are 6 0- to 120-year -old oak stands (Laiolo et al. 2003), a 100-year -old boreal Norway spruce stand (Dahlberg et al. 1997), and a 110-year -old...

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... Wirth Chapter 3 Old Trees and the Meaning of Old Fritz Hans Schweingruber and Christian Wir th 3.1 Introduction While the mere presence of old trees does not automatically indicate old- growth ... 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 840-year -old Juniperus...

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... 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 increasing respiratory ... shifts compen- sated each other such that relative growth rates were similar across the shade- tolerance gradient, while our results suggest higher growth rates f...

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... 20 1- to 400-year -old stands (early old- growth) are either carbon-neutral or still accumulating carbon. Few successions exhibited a pronounced late-successional decline. These results are consis- tent ... progressing from early- to late-successional conifers, and from early-successional hardwoods to late-successional conifers, tended to accumu- late carbon during the early old- gro...

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... Comparisons with second -growth forests are also 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- bla...

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