6533b7cefe1ef96bd1256fd0
RESEARCH PRODUCT
Carbon use efficiency variability from MODIS data
Sergio Sánchez-ruizMaría Amparo GilabertM. CañizaresA. Morenosubject
NPP010504 meteorology & atmospheric sciencesGeography Planning and Development0211 other engineering and technologies02 engineering and technologyAtmospheric sciences01 natural sciencesVegetation typeEarth and Planetary Sciences (miscellaneous)EcosystemPrecipitationCarbon use efficiency (CUE)021101 geological & geomatics engineering0105 earth and related environmental sciencesBiomass (ecology)EcologyPrimary productionVegetation15. Life on landAridEficiencia en el uso del carbono (CUE)GeographyMODIS13. Climate actionSpatial variabilityGPPdescription
[EN] Carbon use efficiency (CUE) describes how efficiently plants incorporate the carbon fixed during photosynthesis into biomass gain and can be calculated as the ratio between net primary production (NPP) and gross primary production (GPP). In this work, annual CUE has been obtained from annual GPP and NPP MODIS products for the peninsular Spain study area throughout eight years. CUE is spatially and temporally analyzed in terms of the vegetation type and annual precipitation and annual average air temperature. Results show that dense vegetation areas with moderate to high levels of precipitation present lower CUE values, whereas more arid areas present the highest CUE values. However, the temperature effect on the spatial variation of CUE is not well characterized. On the other hand, inter-annual variations of CUE of different ecosystems are discussed in terms of inter-annual variations of temperature and precipitation. It is shown that CUE exhibited a positive correlation with precipitation and a negative correlation with temperature in most ecosystems. Thus, CUE decreases when the ecosystem conditions change towards aridity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-06-20 |