FluxPAW: A standalone software to calculate flux-based plant available water

Author(s)

de Melo, Marina Luciana Abreu ; van Lier, Quirijn de Jong

• Document type: Journal article
• Source: SOFTWARE IMPACTS; v. 15, p. 4-pg., 2023-01-13.

Abstract

Soil water contents at field capacity (FC), the limiting point (LP), and the wilting point (WP) delimit the fractions of soil water availability, the plant available water (PAW). FC is primarily a function of soil hydraulic properties, whereas LP and WP depend on soil, plant, and atmospheric conditions. The difference between FC and WP is called total available water, whereas FC minus LP is the readily available water. The flux-based method (FBM) predicts PAW from unsaturated soil water flow, rooting characteristics, and atmospheric water demand. This paper presents FluxPAW, a software to calculate PAW using the FBM algorithm. (AU)

• FAPESP's process: 22/00853-2 - Determination of hydraulic properties of soils in the State of São Paulo and their agro-hydrological interpretation
• Grantee: Quirijn de Jong van Lier
• Support Opportunities: Regular Research Grants
• FAPESP's process: 20/07294-3 - Limitations to evapotranspiration in water transfer through the soil-plant-atmosphere continuum: revisiting the crop coefficient
• Grantee: Marina Luciana Abreu de Melo
• Support Opportunities: Scholarships in Brazil - Doctorate