Review test

What causes the water balance of the landscape to increase with elevation (describe the trends for the three major components of the hydrological equation)?

What are the two key components of soils that determine plant water relations?

How do plants control their water relations in dry alpine areas (e.g. in the Andean semideserts)?

What is the most important indirect consequence of water storage in the Alpine?

Name two groups of plants which can desiccate completely without damage.

What is the role of leaf pubescence at high elevation (name at least two functions)?