Abstract

A stress form of Richard’s equation was created, nominated, and discussed by the author. The logical model of soil stress index and soil water hydraulic capacitance will classify the types of water uptake under abiotic stressed conditions It’s the moisture redistribution (bz) which makes the curvature of SSI becomes gradual and hence saves plants life as long as possible now and then each wetting drying cycle. It’s the gaining factor which determines the moisture’s sink should be applied in the deficit irrigation scenarios without causing a reliable reduction in crop yield and plantation properties. Finally, it’s the soil stress index and/or soil water hydraulic capacitance which determine the type and amount of water and nutrients’ uptake in accordance with stress and/or stress, strain, and weathered controlled forces. The most interesting result is that the author found new valuable tools for assessing some environmental impacts of climatic changes on the agro ecosystem continuum under stresses of drought and salinity.

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