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Find value for input parameter slopeH #423

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chaukap opened this issue Dec 17, 2019 · 3 comments
Closed

Find value for input parameter slopeH #423

chaukap opened this issue Dec 17, 2019 · 3 comments
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@chaukap @ScottCJr @dchenow1
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Seed Dispersal

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@chaukap
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chaukap commented Dec 17, 2019

Slope Height is the slope of the allometric relationship between height and biomass as specified in issue #415. It needs to be added to inputs and stored in the SpeciesType struct.
@chaukap chaukap added this to the Seed Dispersal milestone Dec 17, 2019
@chaukap chaukap self-assigned this Dec 17, 2019
chaukap pushed a commit that referenced this issue Dec 17, 2019
Added HSlope to inputs (issue #423)
052d3b7 
* HSlope is now specified in species.in.
* HSlope is stored in the SpeciesType struct as heightSlope.

I also made two aesthetic changes:
* The "dispersal" column in species.in was changed to "Use". I did this to shorten the name, and becasue it better describes the column.
* I documented _species_init for Doxygen.
@kpalmqui
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To be updated by @ScottCJr in the near future.

@chaukap chaukap changed the title Add new input parameter slopeH Find value for input parameter slopeH Dec 18, 2019
@kpalmqui
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kpalmqui commented Mar 4, 2020

Scott, Damaris, and Bill have identified four slope parameters to be used for woody shrubs, forbs, prostrate bunchgrasses, and upright bunchgrasses. Here the slope parameters are the slope of the allometric relationship between height and biomass (HSlope in species.in) that were derived using field data from 2017 and 2019 using the nls function in R. These slopes help us to derive a height for each established individual in STEPWAT2 based on the biomass of that individual. Height is then used in the seed dispersal module.

We decided to apply the slope for forbs to succulents, other assignments of the four slopes were straightforward for the remaining STEPPE functional types.

See here for Hslope values and documentation:

Species Parameters.seeddispersal.v2.xlsx

kpalmqui added a commit that referenced this issue Mar 4, 2020
@kpalmqui
Updating HSlope default values, resolved issue #423
534495d 
- updated HSlope values for all species, see issue #423 for more description
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kpalmqui commented Mar 4, 2020

Resolved by 534495d

@kpalmqui kpalmqui closed this as completed Mar 4, 2020
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