Titlebook: Long-Term Forest Dynamics of the Temperate Zone; A Case Study of Late Paul A. Delcourt,Hazel R. Delcourt Book 1987 Springer-Verlag New York

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我吃花盘旋

https://doi.org/10.1007/978-1-4612-4740-1Polle; climate; development; ecology; ecotone; environment; evolution; forest; geomorphology; landscape ecolo

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爱哭

Commonplace

Late-Quaternary Migrational Strategies of Tree Species,nd the dominance of the taxon decreases symmetrically away from its optimum in all directions. This assumption is incorporated within forest-stand simulation models such as FORET and JABOWA (Shugart 1984). In cross-section view, percent dominance of the taxon along an environmental gradient appears as a symmetrical bell-shaped or Gaussian curve.

牲畜栏

CHART

Reconstructing Long-Term Forest Changes from Fossil-Pollen Data,isite for interpretation of long-term forest patterns and processes. Direct comparison of the results of different quantitative methods aids in the identification of the strengths and limitations, as well as the complementary insights they offer.

neurologist

The Nature of Long-Term Vegetational Change,al patterns and processes on contemporary landscapes observe only local, short-term growth trends or spatial relationships of plant communities. Extrapolation of these relationships to evaluate the likelihood of stability or change within communities through longer periods of time is problematic without empirical data (White .. 1985).

painkillers

Tree Population Dynamics During the Past 20,000 Years,77). Taxon calibrations available to date on a subcontinental scale. however. do allow us to map changes in relative dominance of many of the dominant. subdominant. and characteristic tree taxa (see discussions in Chapters 2 and 3).