ECONOM 1051 Lecture : Econ in the news 9
Document Summary
B. less than potential water loss by evaporation (dry land=water deficiency increases every year) two types: desert=arid, steppe= a marginal and more humid variant of desert (semi arid, concentrated in two areas, subtropics low latitude desert in the vicinities of tropics of cancer and. Some chemical weathering in deserts does produce clay, thin soils, and oxidized materials: role of water in arid climates, practically all streambeds in these areas are dry most of the time, desert streams are said to be ephemeral (carry water only during periods of rainfall, role of wind in arid climates. 1. transport of sediment by winds: differs from that of running water in two ways i. wind is less capable of picking up and transporting coarse materials wind is not confined to channels and can spread sediment over large areas, mechanisms of transport ii. bedload saltation (sand grains skipping and bouncing along the surface.
