Springer Old Growth Forests - Chapter 19 pot
Springer Old Growth Forests - Chapter 19 pot
... of old- growth forests, secondary forests and pine plantations are markedly different (Pauchard 199 8), but compara- tive studies on the invertebrates of old- growth forests versus secondary forests ... almost all old- growth forest ecosystems: l Old- growth forests tend to have structurally complex and dynamic vertical and horizontal microclimatic environments. At the s...
Ngày tải lên: 03/07/2014, 13:20
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 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...
Ngày tải lên: 03/07/2014, 13:20
Springer Old Growth Forests - Chapter 2 pot
... old are forests that were labelled old- growth really? Covering three time periods (194 0 196 0, 197 0 198 0 and 199 5 2005), we searched for papers containing the keyword old- growth (or old growth ) ... 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. 199 7), and a 110-year -old B...
Ngày tải lên: 03/07/2014, 13:20
Springer Old Growth Forests - Chapter 9 potx
... the soil declines (Brais et al. 199 5; De Luca et al. C. Wirth et al. (eds.), Old Growth Forests, Ecological Studies 207, 193 DOI: 10.1007/978‐3‐540‐ 92706‐8 9, # Springer Verlag Berlin Heidelberg ... south-east Alaska (Noble et al 198 4; Chapin et al. 199 4). Two are in the temperate zone, i.e. the Franz Josef sequence of Westland, New Zealand (Walker and Syers 197 6; Wardle and Gh...
Ngày tải lên: 03/07/2014, 13:20
Springer Old Growth Forests - Chapter 11 potx
... 200 to 400gm –2 , from a 20-year -old stand to an old- growth stand (Klopatek 2002). It follows that higher amounts of less degradable input may be provided in old- growth forests and this could benefit ... pro- gressed from the pioneer stage to the late o ld -growth state in the following order: pioneer 14.8 Æ 25.6, transition 8.4 Æ 17.6, early old- growth 21.0 Æ 57.0, and late...
Ngày tải lên: 03/07/2014, 13:20
Springer Old Growth Forests - Chapter 15 pot
... E. D. Schulze et al. Chapter 15 Temperate and Boreal Old- Growth Forests: How do Their Growth Dynamics and Biodiversity Differ from Young Stands and Managed Forests? Ernst-Detlef Schulze, Dominik ... appears that these findings have been uncritically transferred to uneven-aged mixed old- growth forests, implying that old- growth forests are redundant in the global carbon cy...
Ngày tải lên: 03/07/2014, 13:20
Springer Old Growth Forests - Chapter 17 potx
... 197 8, McWilliam et al. 199 3), by photographic survey inside the canopy using suspension-wires (Koike and Syahbuddin 199 3) or from a tower with photography (Meir et al. 2000) or state- of-the-art ... and und ergone re -growth for several hundreds of years (Clark 199 6). This is known from artefacts and charcoal found in the soil (Gomez-Pompa et al. 198 7). We also recognise old grow...
Ngày tải lên: 03/07/2014, 13:20
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 say that many old- growth forests contain a high ... are generally shorter-lived than trees (Schweingruber 199 5) and dwarf-shrubs (see below). The oldest known shrub s grow in Siberia. Hantemirov et al. (2003) found an 840-year -old Juniper...
Ngày tải lên: 03/07/2014, 13:20
Springer Old Growth Forests - Chapter 4 ppt
... 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...
Ngày tải lên: 03/07/2014, 13:20
Springer Old Growth Forests - Chapter 5 ppt
... for old- growth forests. With respect to biomass dynamics, there are at least four non-mutually exclusive hypotheses: (1) the ‘equilibrium hypothesis’ of Odum (196 9); (2) the ‘stand- breakup hypothesis’ ... 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. The...
Ngày tải lên: 03/07/2014, 13:20