Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Ecohydrologic Analysis on Soil Water and Plant Water Stress : Focus on Derivation and Application of Stochastic Model

토양수분과 식생의 물 압박에 대한 생태수문학적 해석 : 추계학적 모형의 유도와 적용을 중심으로

  • Han, Suhee (Department of Environmental System Engineering, Pukyong National University) ;
  • Kim, Sangdan (Department of Environmental System Engineering, Pukyong National University)
  • 한수희 (부경대학교 환경시스템공학부) ;
  • 김상단 (부경대학교 환경시스템공학부)
  • Received : 2007.11.19
  • Accepted : 2008.01.02
  • Published : 2008.01.30
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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

Acknowledgement

Supported by : 한국과학재단

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