Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Production Efficiency01:01

Production Efficiency

Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
Trophic Efficiency00:46

Trophic Efficiency

Trophic level transfer efficiency (TLTE) is a measure of the total energy transfer from one trophic level to the next. Due to extensive energy loss as metabolic heat, an average of only 10% of the original energy obtained is passed on to the next level. This pattern of energy loss severely limits the possible number of trophic levels in a food chain.
Light as Energy01:35

Light as Energy

The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit less...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Stability of oil bodies under pulsed electric field exposure to rapeseed: New insights into improving oil extraction capacity.

Food chemistry·2026
Same author

<i>Advenella alkanexedens</i>, a specific phosphate-solubilizing bacterium from rapeseed rhizosphere soil, highly activates insoluble phosphorus in calcareous soil.

Microbiology spectrum·2026
Same author

Correction: Mitigation of soil water stress by moderately deep sowing and exogenous application of glucosinolates during the early seedling stage in rapeseed.

Frontiers in plant science·2026
Same author

Mitigation of soil water stress by moderately deep sowing and exogenous application of glucosinolates during the early seedling stage in rapeseed.

Frontiers in plant science·2026
Same author

BnaPAP2.C2 plays a novel inhibitory role in anthocyanin accumulation compared to its paralogs in rapeseed (Brassica napus L.).

The Plant journal : for cell and molecular biology·2026
Same author

Key influencing factors and spatiotemporal patterns of annual net ecosystem CO<sub>2</sub> exchange in China.

Journal of environmental management·2026

Related Experiment Video

Updated: May 19, 2026

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light
07:08

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light

Published on: June 12, 2019

Light use efficiency over two temperate steppes in inner Mongolia, China.

Yu Wang1, Guangsheng Zhou

  • 1State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China.

Plos One
|August 24, 2012
PubMed
Summary

Grassland light use efficiency (LUE) varies significantly. Water availability limits LUE, and while evaporative fraction is a key factor, its relationship with LUE is site-specific, challenging biome-dependent models.

More Related Videos

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation
09:09

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation

Published on: February 5, 2020

Chronic Unpredictable Mild Stress in Rats based on the Mongolian medicine
05:56

Chronic Unpredictable Mild Stress in Rats based on the Mongolian medicine

Published on: October 27, 2023

Related Experiment Videos

Last Updated: May 19, 2026

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light
07:08

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light

Published on: June 12, 2019

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation
09:09

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation

Published on: February 5, 2020

Chronic Unpredictable Mild Stress in Rats based on the Mongolian medicine
05:56

Chronic Unpredictable Mild Stress in Rats based on the Mongolian medicine

Published on: October 27, 2023

Area of Science:

  • Ecology
  • Ecosystem Science
  • Remote Sensing

Background:

  • Light Use Efficiency (LUE) is crucial for simulating vegetation Gross Primary Production (GPP) in Production Efficiency Models (PEMs).
  • Grasslands exhibit high LUE inter-site variation and unique limiting factors due to water scarcity.

Purpose of the Study:

  • To investigate grassland LUE and its controlling factors on a typical and a desert steppe in Inner Mongolia.
  • To assess the applicability of biome-dependent LUE parameters in PEMs.

Main Methods:

  • Utilized eddy covariance flux data and MODIS-derived fraction of photosynthetically active radiation (fAPAR).
  • Analyzed LUE variations in relation to water availability (Evaporative Fraction - EF, AET/PET) and diffuse radiation.

Main Results:

  • Desert steppe showed higher annual and maximum LUE than typical steppe, despite lower GPP.
  • Water availability, indicated by EF or AET/PET, explained 50-70% of seasonal LUE variations at both sites.
  • Site-specific relationships were observed between LUE and EF, and LUE responded to diffuse radiation differently at each site.

Conclusions:

  • A biome-dependent LUE(max) is unsuitable for grasslands due to significant inter-site variability.
  • Evaporative Fraction (EF) shows potential as a grassland LUE regulator in PEMs, but site-specific calibration is necessary.
  • Understanding site-specific controls on grassland LUE is essential for accurate ecosystem modeling.