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Ecohydrologic Analysis on Soil Water and Plant Water Stress : Focus on Derivation and Application of Stochastic Model  

Han, Suhee (Department of Environmental System Engineering, Pukyong National University)
Kim, Sangdan (Department of Environmental System Engineering, Pukyong National University)
Publication Information
Journal of Korean Society on Water Environment / v.24, no.1, 2008 , pp. 99-106 More about this Journal
Abstract
With globally increasing interests in climate-soil-vegetation system, a new stochastic model of soil water and plant water stress is derived for better understanding of the soil water and plant water stress dynamics and their role in water-controlled ecosystem. The steady-state assumption is used for simplifying the equations. The derived model is simple yet realistic that it can account for the essential features of the system. The model represents the general characteristics of rainfall, soil, and vegetation; i.e. the soil moisture constitutes the decrease form of the steady-state and the plant water stress becomes increasing with the steady state when the rainfall is decreased. With this model, further deep study for the effects of soil water and plant water stress on the system will be accomplished.
Keywords
Ecohydrology; Plant water stress; Soil water dynamics; Stochastic model;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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