Springer Old Growth Forests - Chapter 7 ppt

... of old- growth forests are expected to inﬂu-ence biosphere atmosphere exchange of such forests. In this chapter we will focuson structural features of old- growth, i.e. the fact that old- growth ... old- growth forests affect the direct measurement of biosphere atmosphere exchange ofC. Wirth et al. (eds.), Old Growth Forests, Ecological Studies 2 07, 141DOI: 10.10 07/ 978 ‐3‐540‐ 9 270 6‐8 7, # Springer Verlag ... forest 7 Biosphere Atmosphere Exchange of Old Growth Forests: Processes and Pattern 1 47 Chapter 7 Biosphere–Atmosphere Exchangeof Old- Growth Forests: Processes and PatternAlexander Knohl, Ernst-Detlef...

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 0.0348 93.0 25 .7 3.5 <0.001T 198.80 23. 87 8.33 <0.001Age 43.68 16.00 2 .73 0.0 075 df 109 75 Residual ... empirical data over 10 years. ItC. Wirth et al. (eds.), Old Growth Forests, Ecological Studies, 2 07 57 DOI: 10.10 07/ 978 ‐3‐540‐9 270 6‐8 4,# Springer Verlag Berlin Heidelberg 2009 ... 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...

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 ... accumula-tion hypothesis’ of Schulze et al. (Chap. 15, this volume). Because some of theseC. Wirth et al. (eds.), Old Growth Forests, Ecological Studies 2 07, 81DOI: 10.10 07/ 978 ‐3‐540‐9 270 6‐8 ... 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...

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 ... (Frank et al.), this volume]. Old- growth forests generally haveC. Wirth et al. (eds.), Old Growth Forests, Ecological Studies 2 07, 115DOI: 10.10 07/ 978 ‐3‐540‐9 270 6‐8 6,# Springer Verlag Berlin Heidelberg ... 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...

Springer Old Growth Forests - Chapter 18 ppt

... al. (eds.), Old Growth Forests, Ecological Studies 2 07, 411DOI: 10.10 07/ 978 ‐3 ‐540‐ 9 270 6‐8 18,# Springer Verlag Berlin Heidelberg 2009year between 1990 and 2005 (non-intact forests have been ... deforestation is take n as changes fromintact and non-intact forests to non -forests. The change rates from intact forests tonon-intact forests are approximated by applying a ratio of 0.52 to ... 2000bHumidtropics(106ha)Drytropics(106ha)Flooded forests (106ha)CS RSSClosed forests (106ha)Open forests (106ha) Forests (106ha)South America 630 1 47 25 858 69 78 0Africa 233 415 13 353 289 518Southeast...

Springer Old Growth Forests - Chapter 20 ppt

... forest use.20.3 Consideration of Old- Growth Forests in UN Processes20.3.1 Old- Growth Forests and the UN Framework Conventionon Climate Change Old- growth forests are usually characterised by ... in their forests, including old- growth forests. But if old- growth forests are considered ‘‘unmanaged’’ they are excluded from the UNFCCCand the Kyoto Protocol, because for unmanaged forests ... 11.3 14.4 13 .7 34.6 14.5World 3,952,025 34.1 9.3 11.2 3 .7 33.8 7. 820 Old Growth Forests in the Context of International Environmental Agreements 45320.4 Potential Role of Old- Growth Forests in...

Springer Old Growth Forests - Chapter 1 pot

... 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 ... 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 ... Wirth et al. (eds.), Old Growth Forests, Ecological Studies 2 07, 3DOI: 10.10 07/ 978 ‐3‐540‐9 270 6‐8 1,# Springer Verlag Berlin Heidelberg 2009chronosequences studies, the micro-meteorological eddy...

Springer Old Growth Forests - Chapter 2 pot

... old- growth forests are 6 0- to 120-year -old oak stands (Laiolo et al. 2003), a 100-year -old borealNorway spruce stand (Dahlberg et al. 19 97) , and a 110-year -old Balsam ﬁr stand(Sturtevant et al. 19 97) . There ... book.C. Wirth et al. (eds.), Old Growth Forests, Ecological Studies 2 07, 11DOI: 10.10 07/ 978 ‐3‐540‐9 270 6‐8 2,# Springer Verlag Berlin Heidelberg 20092.2 Old- Growth Forest Deﬁnitions and their ... old are forests that were labelled old- growth really?Covering three time periods (1940 1960, 1 970 1980 and 1995 2005), wesearched for papers containing the keyword old- growth (or old growth )...

Springer Old Growth Forests - Chapter 3 pdf

... dendrochronologicaltechnique of cross-dating. As shown in Fig. 3.1, this simple method allows theC. Wirth et al. (eds.), Old Growth Forests, Ecological Studies 2 07, 35DOI: 10.10 07/ 978 ‐3‐540‐ 9 270 6‐8 3,# Springer Verlag ... 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 ... 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 sibirica....

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 2 07, 159DOI: 10.10 07/ 978 ‐3‐540‐9 270 6‐8 8,# Springer Verlag Berlin Heidelberg ... reduction in NPP or an increase in decom-position rate-constants as forests age could lead to mid-successional forests havingmore woody detritus than old- growth forests. Repeated disturbance was ... decomposition rate-constants (Olson 1963). In general, as theNPP of old- growth forests increases, the live biomass, and the input of mortalityincreases. Thus, more productive old- growth forests can...

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