Download Alpine Plant Life: Functional Plant Ecology of High Mountain by Christian Körner PDF

By Christian Körner

Recent years have visible renewed curiosity within the fragile alpine biota. The foreign 12 months of Mountains in 2002 and diverse foreign courses and projects have contributed to this. considering the fact that approximately half mankind will depend on water offers originating in mountain catchments, the integrity and useful signi?cance of the upland biota is a key to human welfare and should obtain much more cognizance as water turns into an more and more restricted source. Intact alpine vegetation,as the protect of the water towers of the area, is worthy being good understood. This new version of Alpine plants is an replace with over a hundred new references,new diagrams, revised and prolonged chapters (particularly 7, 10, eleven, 12, sixteen, 17) and now additionally bargains a geographic index. My thank you visit the various cautious readers of the ?rst variation for his or her Most worthy reviews, in parti- lar to Vicente I. Deltoro (Valencia) and Johanna Wagner (Innsbruck). Basel,April 2003 Christian Körner Preface to the ?rst version one of many greatest common organic experiments, probably the single one replicated throughout all latitudes and all climatic regions,is uplift of the los angeles- scape and publicity of organisms to dramatic climatic gradients over a truly brief distance, differently basically visible over millions ofkilometers of poleward touring. Generations of plant scientists were occupied with those common attempt areas,and have explored plant and atmosphere responses to alpine lifestyles stipulations. Alpine plants is an try at a synthesis.

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Extra resources for Alpine Plant Life: Functional Plant Ecology of High Mountain Ecosystems

Sample text

A global comparison of altitudinal ranges in perature times 100) can be particularly misleading atmospheric turbidity. The dotted boundary illustrates the overall trend. (Volko 1971) in high mountains. Based on this measure "low humidity at high altitude"(under certain weather conditions or in semi-arid mountains) has often bidity, Figs. 6) and overcast conditions been suggested to enhance evaporation. However, (thinner cloud layer) and so do high radiation at low temperatures the saturation vapour pres- extremes, but also the relative frequency of local sure is low (see above) and relative humidity may cloud cover increases with altitude (Fig.

1. 1. 7 Numbers represent a hypothetical state, approximating mean annual conditions at mid-latitudes (Barry 1981). e. equal pressures are found at ca. 200-300 m higher altitudes in the tropics than assumed in this list). are likely to be responsible for the differences in morphology and physiology which might be found among alpine floras. The global variability of some and the constancy of other attributes of an alpine climate represent a gigantic natural experiment, with "differential treatments" imposed for so long that selective processes can be expected to have evolved life zone specific biolog- ical answers, provided natural vegetation is considered.

What these data illustrate is the overruling influence of plant stature and canopy structure - a topic considered in more detail later in this chapter. Many other aspects of the alpine climate as experienced by plants are driven by relief. Mechanical effects of wind on wind edges may influence virtually all aspects of plant growth (Grace 1977; Bell and Bliss 1979; Biddington 1985). J11 '" ~ -10 ~r=~=c=r=u~~~~LLLL~~ ::l 30 ~Q) 20 a. l~= J F M A MJ J A SON Month (1972) D Fig. 6. Plant canopy temperatures along a profile of increasing wind exposure at the central Alp's treeline in Tirol.

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