ArticleGlobal change biology2023
Vegetation clumping modulates global photosynthesis through adjusting canopy light environment.
Article in Global change biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Optimal canopy light-use strategy shapes global greenness dynamics.Nature communications · 2026Article
- Solar radiation differences drive karst sun and shade leaf carbon sink contribution shifts.Carbon balance and management · 2026Article
- Clumped canopy architecture raises global crop yield and reduces NNature plants · 2026Article
- Seasonal and intracanopy shifts in the fates of absorbed photons in central Amazonian forests: implications for leaf fluorescence and photosynthesis.The New phytologist · 2025Article
- Impacts of leaf traits on vegetation optical properties in Earth system modeling.Nature communications · 2025Article
- Exacerbating risk in human-ignited large fires over western United States due to lower flammability thresholds and greenhouse gas emissions.PNAS nexus · 2025Article
- Optical Remote Sensing in Provisioning of Ecosystem-Functions Analysis-Review.Sensors (Basel, Switzerland) · 2023Review
- Vegetation clumping modulates global photosynthesis through adjusting canopy light environment.Global change biology · 2023Article
Corrections and comments
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Authors and funding
11 authors.
Funding
Abstract
The spatial dispersion of photoelements within a vegetation canopy, quantified by the clumping index (CI), directly regulates the within-canopy light environment and photosynthesis rate, but is not commonly implemented in terrestrial biosphere models to estimate the ecosystem carbon cycle. A few global CI products have been developed recently with remote sensing measurements, making it possible to examine the global impacts of CI. This study deployed CI in the radiative transfer scheme of the Community Land Model version 5 (CLM5) and used the revised CLM5 to quantitatively evaluate the extent to which CI can affect canopy absorbed radiation and gross primary production (GPP), and for the first time, considering the uncertainty and seasonal variation of CI with multiple remote sensing products. Compared to the results without considering the CI impact, the revised CLM5 estimated that sunlit canopy absorbed up to 9%-15% and 23%-34% less direct and diffuse radiation, respectively, while shaded canopy absorbed 3%-18% more diffuse radiation across different biome types. The CI impacts on canopy light conditions included changes in canopy light absorption, and sunlit-shaded leaf area fraction related to nitrogen distribution and thus the maximum rate of Rubisco carboxylase activity (V
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