Chapter

Dryland Ecohydrology

pp 31-46

SOIL MOISTURE DYNAMICS IN WATER-LIMITED ECOSYSTEMS

  • Paolo D'ODORICOAffiliated withDepartment of Environmental Sciences, University of Virginia
  • , Amilcare PORPORATOAffiliated withDepartment of Civil and Environmental Engineering, Duke University

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Abstract

The main control exerted by hydrological processes on vegetation in water-limited ecosystems is through the soil water content, which, in turn, results from complex interactions between precipitation, infiltration, evaporation, transpiration, and soil drainage. Most of these processes are state-dependent, in that their rates are functions of the soil water content.