Carbon and nutrients
34 important questions on Carbon and nutrients
How many percent of the carbon emission is because of fossil burning?
How many percent does the ocean absorb?
How many percent does the clouds obsorb?
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How many percent does the trees absorb?
What influences photosynthesis?
● Water and CO2 availability
● Availability of nitrogen in leaves (enzymes,
Rubisco)
● Temperature
What happens with O2 en CO2 when stomata closes due to drought?
What does the RuBisCO enzyme do?
What do you need to know about C3 photosynthesis (3 things)?
2. Calvin Cycle is performed in the mesophyll cells and consists of three phases: carbon fixation using Rubisco, glucose formation and Rubisco regeneration.
3. Rubisco is inefficient due to photorespiration.
What do you need to know about C3 photosynthesis (3 things)?
2. Calvin Cycle is performed in the mesophyll cells and consists of three phases: carbon fixation using Rubisco, glucose formation and Rubisco regeneration.
3. Rubisco is inefficient due to photorespiration.
What is an inefficiency of RuBisCO?
How can the C4 pathway occur?
What spatial separation of processes happens with C4 pathway?
- C3 in bundle sheet cells
What is the difference between mesophyll cells and bundle sheet cells
Where are C4 plants adapted for and where can we find them?
Where do we find C3 plants?
What do plants with Crassulacean Acid Metabolism do?
What is the disadvantage of Crasssulacean Acid Metabolism?
What is a redox reaction?
How does an biomass/forest inventory work?
What are four future changes in decomposition?
2. Temperature affects the chemical processes of SOM.
3. Precipitation and Evaporation will change and lead to summertime drying.
4. Melting of permafrost will expose organic matter.
What are four functions of nutrients?
2. Electron acceptor and donor.
3. Structual plant tissue and molecular component.
4. Osmosis: determining plant cell permeability.
Why are nitrogen and carbon cycles so important? (name four)
2. Adding antropogenic N.
3. Accelerated SOM turnover.
4. Productivity response to elevated CO2.
How can NPP be calculated?
What is solar radiation energy?
Why do plants use solar radiation energy?
What takes places in the chloroplasts in plant leaves?
What are three ways to calculate the belowground NPP?
2. Minirhizotron observations
3. Ingrowth cores
What is sequential coring?
What is minirhizotron observations?
What is ingrowth cores?
What two things do you need to know about heterotrophic respiration?
2. Enhanced climate-driven mineralization primarily led by increases in temperatures.
What are observed nitrogen addition responses? (4 things) N additions generally...
2. Reduction in soil respiration.
3. Depends on other co-limiting factors.
4. Can saturate and show reverse effect.
What are observed nitrogen addition responses? (4 things) N additions generally...
2. Reduction in soil respiration.
3. Depends on other co-limiting factors.
4. Can saturate and show reverse effect.
Are respiration reactions positive or negative related to temperature.
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