Global Journal of Science Frontier Research, D: Agriculture and Veterinary, Volume 23 Issue 1

(A) (B) (A): The fresh water availability cubic meters per person per year. (Source: EL-Ashry et al., 2010). (B): The worldwide water stress change from the year 1995 to 2025. (Source: ecomena.org) . 2007 1995 - 2025 © 2023 Global Journals 1 Year 2023 30 Global Journal of Science Frontier Research Volume XXIII Issue ersion I VI ( D) Figure 2: The Modified Richard’s Equation for Assessing the Impact of Drought and Salinity in Arid and Semi-Arid Zones. Part Two: A Soil Hydraulic Capacitance