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Topic 16 - Plant architecture and carbon balance integrate plant activities
Essential elements from Topic 16:
Here, we discuss how photosynthesis of individual leaves becomes integrated into whole canopy photosynthesis. We will learn about
• concepts of carbon balance and integration of plant activities at the canopy scale
• definitions and magnitudes of primary productivity at the canopy and ecosystems scales
• bottom-up and top-down models to predict canopy-scale photosynthesis
• leaf area index distributions in canopies and of the Beers-Lambert based approaches to understand light attenuation within canopies
• how variations in leaf angle through a canopy influence light penetration and overall canopy photosynthetic rates
• spacing relationships among leaves within the canopy influencing umbral and penumbral patterns
• nitrogen as a measure of protein content
• the distribution of protein within leaves and of the optimal distribution and re-distribution of nitrogen within a canopy
• the role of red to far red ratios as an indicator of location within a plant canopy and how this measure influences development
In the independent XLSX module, we provide you with an excel spreadsheet that allows you to calculate canopy light penetration profiles and overall photosynthetic rates given different leaf area index profiles, leaf angle distributions, and photosynthetic capacities..
Given the autotrophic dependence and general immobility of plants, a number of adaptation allow them to persist through rather large changes in the quality of the physical environment. In this lecture, we will see just how acclimation responses allow leaves to photosynthesize across a wide range of environmental conditions.
Topic 16 - Plant architecture and carbon balance integrate plant activities
Essential elements from Topic 16:
Here, we discuss how photosynthesis of individual leaves becomes integrated into whole canopy photosynthesis. We will learn about
• concepts of carbon balance and integration of plant activities at the canopy scale
• definitions and magnitudes of primary productivity at the canopy and ecosystems scales
• bottom-up and top-down models to predict canopy-scale photosynthesis
• leaf area index distributions in canopies and of the Beers-Lambert based approaches to understand light attenuation within canopies
• how variations in leaf angle through a canopy influence light penetration and overall canopy photosynthetic rates
• spacing relationships among leaves within the canopy influencing umbral and penumbral patterns
• nitrogen as a measure of protein content
• the distribution of protein within leaves and of the optimal distribution and re-distribution of nitrogen within a canopy
• the role of red to far red ratios as an indicator of location within a plant canopy and how this measure influences development
In the independent XLSX module, we provide you with an excel spreadsheet that allows you to calculate canopy light penetration profiles and overall photosynthetic rates given different leaf area index profiles, leaf angle distributions, and photosynthetic capacities..
Given the autotrophic dependence and general immobility of plants, a number of adaptation allow them to persist through rather large changes in the quality of the physical environment. In this lecture, we will see just how acclimation responses allow leaves to photosynthesize across a wide range of environmental conditions.