soil water

soil water
dirvožemio vanduo statusas T sritis ekologija ir aplinkotyra apibrėžtis Dirvožemio skystoji fazė – vanduo su jame ištirpusiomis mineralinėmis, organinėmis medžiagomis ir dujomis. Iš jo augalai įsisavina maisto medžiagas. Augalų mitybai ir augimui labai svarbu dirvožemio vandens pH (palankiausios sąlygos, kai pH 6,0–6,5). atitikmenys: angl. soil moisture; soil water vok. Bodenwasser, n rus. почвенная влага, f; почвенная вода, f

Ekologijos terminų aiškinamasis žodynas. – Vilnius : Grunto valymo technologijos. . 2008.

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  • soil water — dirvožemio drėgnis statusas T sritis ekologija ir aplinkotyra apibrėžtis Drėgmės procentinis kiekis dirvožemio masėje arba tūryje. Pagal raiškos būdą būna svorinis (drėgmės kiekis masės procentais) ir tūrinis (drėgmės kiekis tūrio procentais).… …   Ekologijos terminų aiškinamasis žodynas

  • Soil water (retention) — Soils can process and contain considerable amounts of water. They can take in water, and will keep doing so until they are full, or the rate at which they can transmit water into, and through, the pores is exceeded. Some of this water will… …   Wikipedia

  • soil-water pressure —    The pressure (positive or negative), in relation to the external gas pressure on the soil water, to which a solution identical in composition with the soil water must be subjected in order to be in equilibrium through a porous permeable wall… …   Lexicon of Cave and Karst Terminology

  • soil water —    See soil moisture …   Lexicon of Cave and Karst Terminology

  • total soil-water potential —    The sum of the energy related components of a soil water system; i.e., the sum of the gravitational, matric, and osmotic components [22] …   Lexicon of Cave and Karst Terminology

  • Water content — Soil composition by phase: s soil (dry), v void (pores filled with water or air), w water, a air. V is volume, M is mass. Water content or moisture content is the quantity of water contained in a material, such as soil (called soil moisture),… …   Wikipedia

  • Soil pH — is the pH of soil water. It is based on the measurement of pH, which depends on the activity of hydrogen ions (H+) in a solution.There are many different methods to collect soil water, all which influence the measured soil pH in one way or… …   Wikipedia

  • Soil structure — is determined by how individual soil granules clump or bind together and aggregate, and therefore, the arrangement of soil pores between them. Soil structure has a major influence on water and air movement, biological activity, root growth and… …   Wikipedia

  • Water retention curve — is the relationship between the water content, θ, and the soil water potential, ψ. This curve is characteristic for different types of soil, and is also called the soil moisture characteristic.It is used to predict the soil water storage, water… …   Wikipedia

  • Water potential — is the potential energy of water per unit volume relative to pure water in reference conditions. Water potential quantifies the tendency of water to move from one area to another due to osmosis, gravity, mechanical pressure, or matrix effects… …   Wikipedia

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