photosynthetically active radiation

PAR, photosynthetically active radiation
излучение, инициирующее фотосинтез

English-Russian dictionary of program "Mir-Shuttle". . 2015.

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  • Photosynthetically Active Radiation — Die Photosynthetically Active Radiation (kurz PAR oder PhAR) ist der Bereich im Spektrum der Sonnenstrahlung, der von photosynthetisch aktiven Lebewesen genutzt werden kann. Dieser Bereich (380 780 nm) deckt sich weitgehend mit dem Bereich der… …   Deutsch Wikipedia

  • Photosynthetically active radiation — The expression Photosynthetically Active Radiation, often abbreviated PAR, designates the spectral range of solar light from 400 to 700 nanometers that is useful to terrestrial plants in the process of photosynthesis. This spectral region… …   Wikipedia

  • photosynthetically active radiation — Abbreviation: PAR The part of the radiant energy that is capturable by natural photosynthetic systems (approximately equivalent to the natural light spectrum of wavelengths 400 700nm) …   Glossary of Biotechnology

  • Photosynthetically Active Photon Flux Density — Bei der Photosynthetically Active Photon Flux Density, kurz PFD oder PPFD, handelt es sich um die Photonenstromdichte im photosynthetisch aktiven Strahlungsspektrum der Sonne. Sie wird meist in µmol(Photonen)/m²s angegeben. Es ist vor allem eine… …   Deutsch Wikipedia

  • Hemispherical photography — Hemispherical photography, also known as fisheye or canopy photography, is a technique to estimate solar radiation and characterize plant canopy geometry using photographs taken looking upward through an extreme wide angle lens (Rich 1990).… …   Wikipedia

  • Normalized Difference Vegetation Index — Negative values of NDVI (values approaching 1) correspond to water. Values close to zero ( 0.1 to 0.1) generally correspond to barren areas of rock, sand, or snow. Lastly, low, positive values represent shrub and grassland (approximately 0.2 to 0 …   Wikipedia

  • Aggregating anemone — Scientific classification Kingdom: Animalia Phylum …   Wikipedia

  • FAPAR — The Fraction of Absorbed Photosynthetically Active Radiation (FAPAR, sometimes also noted fAPAR or fPAR) is the fraction of the incoming solar radiation in the Photosynthetically Active Radiation spectral region that is absorbed by plants. This… …   Wikipedia

  • Einstein (unit) — An einstein is a unit used in irradiance and in photochemistry. One einstein is defined as one mole of photons, regardless of their frequency. Therefore, the number of photons in an einstein is Avogadro s number, 6.022×1023. Irradiance might be… …   Wikipedia

  • Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …   Wikipedia

  • Gewässerzone — Ein See stellt ein weitgehend geschlossenes Ökosystem dar. Die folgenden Betrachtungen beziehen sich auf einen Süßwassersee in der gemäßigten Klimazone, ein stehendes Gewässer ohne Verbindung zum Meer, das mehr als 10 Meter tief ist und dessen… …   Deutsch Wikipedia

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