Comment on "Recent global decline of CO<sub>2</sub> fertilization effects on vegetation photosynthesis".
editorial · Level V
Where this comes from
- Record sourced from PubMed, PMID 34554806.
- Also identified by DOI 10.1126/science.abg2947.
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Abstract
Wang <i>et al</i>. (Research Articles, 11 December 2020, p. 1295), using photosynthesis proxies from long-term satellite records, report a significant decline in CO<sub>2</sub> fertilization effects. We find that small systematic biases in Advanced Very High Resolution Radiometer (AVHRR) data affect their analysis to the degree that the key finding is not robust. Caution is recommended when using AVHRR to detect changes in near-infrared reflectance of vegetation (NIRv) trends and vegetation indices.
Medical subject headings
- Carbon Dioxide
- Photosynthesis