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water retention capacity

См. также в других словарях:

  • 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-holding capacity —    See specific retention …   Lexicon of Cave and Karst Terminology

  • 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

  • specific retention, water retaining capacity —    The ration of the volume of water that a given body of rock or soil will hold against the pull of gravity to the volume of the body itself. It is usually expressed as a percentage [6] …   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

  • Water pollution — Raw sewage and industrial waste flows across international borders New River passes from Mexicali to Calexico, California. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water p …   Wikipedia

  • Field capacity — is the amount of soil moisture or water content held in soil after excess water has drained away and the rate of downward movement has materially decreased, which usually takes place within 2–3 days after a rain or irrigation in pervious soils of …   Wikipedia

  • Cation exchange capacity — In soil science, cation exchange capacity (CEC) is the capacity of a soil for ion exchange of positively charged ions between the soil and the soil solution. (A positively charged ion, which has fewer electrons than protons, is known as a… …   Wikipedia

  • Lake retention time — (also called the residence time of lake water, or the water age or flushing time) is a calculated quantity expressing the mean time that water (or some dissolved substance) spends in a particular lake. At its simplest this figure is the result of …   Wikipedia

  • Superabsorbent polymer — Superabsorbent polymers (SAP) (also called slush powder) are polymers that can absorb and retain extremely large amounts of a liquid relative to its own mass. [Definitions of terms relating to reactions of polymers and to functional polymeric… …   Wikipedia

  • Shave brush — The term shave brush or shaving brush refers to a small brush with a handle parallel to the bristles used to apply shaving soap or shaving cream to the face when shaving. They are often decorative; the handle is sometimes made from fine materials …   Wikipedia

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