42. Root Zone Soil Water
This chapter focuses on the root zone soil water, emphasizing its significance in various agricultural and hydrological applications. Key concepts include the types of soil water, soil moisture constants, and the dynamics involved in plant-water interactions. Methods for estimating root zone moisture and essential practices for irrigation scheduling and water resource management are also discussed.
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42.7.1Types Of Et Estimates
This section discusses the two primary types of evapotranspiration (ET)...
What we have learnt
- The root zone is crucial for plant water absorption and hydrology.
- Soil water is classified into gravitational, capillary, and hygroscopic types.
- Field capacity and wilting point help determine available water for plants.
Key Concepts
- -- Field Capacity (FC)
- The maximum amount of soil moisture remaining after excess water has drained away.
- -- Permanent Wilting Point (PWP)
- The soil moisture level at which plants can no longer extract water.
- -- Root Zone Storage Capacity (RZSC)
- The total volume of water that can be stored within the root zone between field capacity and permanent wilting point.
- -- Evapotranspiration (ET)
- The combined process of evaporation from the soil and transpiration through plant stomata.
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