The Vegetation: Pattern and Succession 205 



PROTECTED SITES 



Fngfi 



leaf 

 temperature 



Low 

 wind 



Litter 

 deposited 



Higher vapor, 

 pressure deficits 



High 

 snow 

 cover 



Warmer 



temperatures 



in active 



season 



Increased 

 nutrients 



High leaf 

 resistance 



Decreased 

 abrasion loss 



Increased 

 growth 



Low seasonal 

 photosynthesis 



Prostrate 



growth 



form 



Cooler plant 

 temperature 



Longer 

 leaf duration 



Decreased 



vapor 



pressure 



deficits 



Low leaf 

 resistance 



High 

 photosynthesis 



Taller growth 

 form possible 



High 



soil 



water 



Low soil 

 temperatures 



Low sot! 

 oxygen 



n 



protected I 



Surface 



exposed 



late 



Photosynthesis 



and growth 



simultaneous 



with root thaw 



Stored nutrients 



aboveground in 



stems or stem 



bases or rhizomes 



Deciduous 

 leaves 



Dec re ased 

 nutrients 



Decreased 

 uptake 

 ability 



Aerenchyma 



Shallow 

 rooted 



Deeper 

 rooted 



Increased root 

 biomass 



i 



Deciduous shrubs and single graminoids 



I 



Salix meadow 

 Carex-Poa meadow 



I 



Carex and Dupontia meadow 

 Arctophila pond margins 



and those for protected sites which lead to the characteristics of the 

 plants of Salix and Carex-Poa meadows, for example deciduous shrubs 

 and graminoids, and the plants of Carex and Dupontia meadows and 

 Arctophila pond margins, for example single graminoids. 



