SUEWS parameter database

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Grass · biogenic co2 — Grass (lawn)grass evidence record

alpha_bio_co20.031
beta_bio_co25.312
theta_bio_co20.723
resp_a1.2
biogen-co2grasshelsinkicityHavu M. 2024

Parameters

Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.

Labelled fields override the record-level citation or scope; unlabelled fields use the record metadata.

alpha_bio_co20.031 Bellucco 2017
beta_bio_co25.312 Havu 2024
theta_bio_co20.723 Bellucco 2017
resp_a1.2 Havu M. 2024
resp_b0.09 Havu M. 2024
min_res_bioco20.6 Järvi 2019

Provenance evidence

Awaiting sign-off

Published value · assessed by provenance-audit · 2026-09-01. Agent assessment is evidence preparation, not human verification.

CO2 uptake of urban vegetation in a warming Nordic cityParameter source

Applies to: parameters.resp_a, parameters.resp_b

Where: Table B.1 and Appendix B.4, lawn parameterisation, p. 11

Publishes the lawn respiration pair and describes the single Helsinki urban-lawn observation site used for the fitted parameterisation.

Data used in manuscript CO2 uptake of urban vegetation in a warming Nordic cityParameter source

Applies to: parameters.beta_bio_co2

Where: Input_met/SUEWS_BiogenCO2.txt, code 310

The released model-input row states beta 5.312 for the single-site Helsinki lawn fit, preserving greater precision than Table B.1's printed 5.3.

Modelling the biogenic CO2 exchange in urban and non-urban ecosystems through the assessment of light-response curve parametersParameter source

Applies to: parameters.alpha_bio_co2, parameters.theta_bio_co2

Where: Table 4, Helsinki local light-response parameters, p. 6

Publishes alpha 0.031 and theta 0.723 from one Botanical Garden eddy-covariance sector in Helsinki.

Spatial Modeling of Local-Scale Biogenic and Anthropogenic Carbon Dioxide emissions in HelsinkiParameter source

Applies to: parameters.min_res_bioco2

Where: Equation 11 and Appendix B, minimum respiration, p. 5

Publishes the 0.6 minimum respiration floor from winter chamber measurements at a boreal-forest site in central Finland.

Assessment findings

Namesupported
The label identifies the published parameter class or model configuration.
Targetsupported
The source uses the parameter for the same SUEWS target represented by the record.
Valuessupported
The Havu archive states beta 5.312 at full precision, while Table B.1 and Appendix B publish the fitted lawn parameters and exact respiration coefficients. Bellucco supports alpha and theta; Järvi supports the 0.6 floor.
Sourcesupported
Parameter-level provenance now assigns the full-precision beta to the Havu model-input archive, the lawn respiration coefficients to the Havu article, alpha and theta to Bellucco, and the minimum respiration floor to Järvi.
Placesupported
Lawn and Bellucco leaves come from specific Helsinki sites; the minimum floor comes from a central-Finland site. The later Helsinki configuration remains the envelope.
Representativenesssupported
Every fitted or assumed production source is site-scoped; no leaf inherits city reach from the later Helsinki configuration.
Methodsupported
The record-level literature method describes adoption of the released Havu configuration. Parameter overrides identify the photosynthesis and respiration coefficients as fitted and the winter respiration floor as an explicit model assumption.
Identitysupported
Stable path, target, source and values identify one retained database record.

Scientific note

Parameter-level provenance now records the mixed tuple without changing any value or stable identity. The Havu article documents the single-site lawn fit and exact respiration pair, its archive preserves beta at full precision, Bellucco publishes alpha and theta for another Helsinki site, and Järvi publishes the 0.6 floor from central-Finland site evidence. Leaf scope overrides preserve those production sites without changing the later Helsinki configuration.

Legacy values (verbatim original columns; not SUEWS model inputs)

alpha_enh-999
beta_enh-999

Model-ready fragment

Paste under land_cover.grass in a SUEWS YAML configuration; every value carries its citation.

alpha_bio_co2:
  value: 0.031
  ref:
    ID: bellucco2017
    DOI: 10.1016/j.agrformet.2016.12.011
    desc: helsinki, site
beta_bio_co2:
  value: 5.312
  ref:
    ID: havu-m2024-data
    DOI: 10.5281/zenodo.10572180
    desc: helsinki, site
theta_bio_co2:
  value: 0.723
  ref:
    ID: bellucco2017
    DOI: 10.1016/j.agrformet.2016.12.011
    desc: helsinki, site
resp_a:
  value: 1.2
  ref:
    ID: havu-m2024
    DOI: 10.1016/j.ufug.2024.128261
    desc: helsinki, site
resp_b:
  value: 0.09
  ref:
    ID: havu-m2024
    DOI: 10.1016/j.ufug.2024.128261
    desc: helsinki, site
min_res_bioco2:
  value: 0.6
  ref:
    ID: jarvi2019
    DOI: 10.1029/2018JD029576
    desc: finland, site

Evidence review

Awaiting sign-offSign off evidence on GitHub

Raises a prefilled sign-off issue. CI accepts it only when the issue author is in the verifier registry and the evidence revision is still current.

Review procedure

Record metadata

Scopecity
Targetland_cover.grass · docs
Origin“Helsinki” (verbatim legacy string)
Schema2026.5 · legacy row 30240021

Used by 3 typologies

Same study, same place

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all 17 sets from havu-m2024 at helsinki →
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