jordvätskespänningsmätningar

Jordvätskespänning refers to the tension or pressure exerted by the fluid within the pores of soil. This is a crucial concept in soil science and hydrology, influencing a variety of soil properties and processes. The term can be understood as the force that soil particles exert on the water they contain, or conversely, the force that the water exerts on the soil particles.

This tension is a key factor in determining soil water potential, which dictates the movement of water through the soil profile and into plant roots. When the soil is dry, the water is held tightly by capillary forces between soil particles, resulting in high jordvätskespänning. As the soil becomes wetter, these capillary forces weaken, and the jordvätskespänning decreases.

Understanding jordvätskespänning is vital for agricultural practices, as it directly relates to water availability for crops. It also plays a role in geotechnical engineering, influencing soil stability and behavior under load. Measuring and analyzing this property helps predict how soil will respond to rainfall, irrigation, and other environmental changes.