SUEWS parameter database

curated values, linked and searchable, a citation on every one Home · Map · suews.io
browse · records/surfaces/common/beijing--zheng-y2023--biogen-co2.yml

Any surface · biogenic co2 — Mixed treescommon evidence record

alpha_bio_co20.031
beta_bio_co28.3463
theta_bio_co20.723
resp_a0.78
biogen-co2commonhelsinkisiteZheng Y. 2023

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_co28.3463 Havu 2022
theta_bio_co20.723 Bellucco 2017
resp_a0.78 Havu 2022
resp_b0.08 Havu 2022
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.

Carbon sequestration potential of street tree plantings in HelsinkiParameter source

Applies to: parameters.beta_bio_co2, parameters.resp_a, parameters.resp_b

Where: Sect. 2.1, Site description, p. 2123

Locates the Tilia street-tree site in Viikki, Helsinki.

Where: Table 2, Tilia site SUEWS parameters, p. 2127

Publishes Fpho,max = 8.3463 and respiration coefficients a = 0.78 and b = 0.08 for the Tilia site.

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: Sect. 3.2 and Table 4, Helsinki local model, p. 6

Publishes alpha = 0.031 and theta = 0.723 for the Helsinki botanical-garden wind sector, a different scope from the Viikki Tilia site.

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

Applies to: parameters.min_res_bioco2

Where: Eq. 11 and accompanying text, p. 5

Sets the 0.6 umol m-2 s-1 floor from winter soil-chamber measurements in a boreal forest in central Finland, not at the Viikki Tilia site.

Simulating heat and CO2 fluxes in Beijing using SUEWS V2020b: Sensitivity to vegetation phenology and maximum conductanceLater compilation

Where: ModelRuns/Input/SUEWS_BiogenCO2.txt, code 26

Carries the stored tuple and is commented Helsinki - decid Viikki Tilia.

Where: ModelRuns/Input/SUEWS_Veg.txt, code 991 and 992, columns BiogenCO2Code

Points the Beijing surfaces at biogenic code 26.

Where: ModelRuns/Input/SUEWS_SiteSelect.txt, Beijing grid 1 (2015 and 2016)

Assigns Code_EveTr 991, Code_DecTr 992, Code_Grass 993 and IrrigationCode 5 to the modelled Beijing grid, so those rows are the ones the published runs used.

Simulating heat and CO2 fluxes in Beijing using SUEWS V2020b: Sensitivity to vegetation phenology and maximum conductanceLater compilation

Where: Table 2, SUEWS biogenic model parameters used for all case runs, p. 4559

Publishes Fpho,max, ai and bi with their credits; alpha and theta are absent from the article.

Where: Eq. (15), soil and vegetation respiration, p. 4554

States that 0.6 umol m-2 s-1 is the minimum respiration in winter time.

Simulating heat and CO2 fluxes in Beijing using SUEWS V2020b: Sensitivity to vegetation phenology and maximum conductanceLater compilation

Where: Sect. 3, Study site and measurements, p. 4554

The model domain is a 1 km circle around the IAP tower, covering roughly 80 % of the accumulated flux footprint; no city-wide domain is modelled.

Assessment findings

Namesupported
The archived run assigns biogenic code 26 to both the evergreen and the deciduous surface, so a mixed-tree label describes how the row is used.
Targetsupported
Veg code 991 and 992 of the modelled Beijing grid points at biogenic code 26.
Valuessupported
Code 26 of SUEWS_BiogenCO2.txt carries alpha 0.031, beta 8.3463, theta 0.723, resp_a 0.78, resp_b 0.08 and min_respi 0.6, which is the record exactly, and Veg codes 991 and 992 point at it. Havu Table 2 publishes the exact beta and respiration coefficients for the Viikki Tilia site; Bellucco Table 4 publishes alpha and theta for the Helsinki local model; and Jarvi Eq. 11 documents the 0.6 minimum. Zheng Table 2 rounds beta to 8.4 while corroborating the respiration coefficients.
Sourcesupported
Parameter-level provenance now assigns Havu et al. to the Viikki Tilia beta and respiration coefficients, Bellucco et al. to alpha and theta, and Jarvi et al. to the Finnish minimum respiration. Zheng et al. remain the record-envelope source because their archived run publishes the exact compiled tuple and applies it in Beijing.
issue #330 · issue #1021
Placesupported
The active place is now Helsinki. Havu et al. locate the Tilia study site in Viikki, Helsinki, and the Zheng archive labels this exact row Helsinki - decid Viikki Tilia. Beijing is retained only in the stable record path and origin lineage as the application that introduced the row.
Representativenesssupported
Site is the supported scope because Havu et al. fitted the beta and respiration coefficients for the single Viikki Tilia street-tree site; neither that fit nor the other Finnish inputs establishes city-wide representativeness.
Methodsupported
The record-level literature method describes adoption of the published Zheng run configuration. Parameter overrides identify the Bellucco and Havu coefficients as fitted and the Jarvi respiration floor as an explicit model assumption based on winter soil-chamber observations.
Identitysupported
Biogenic code 26 is a distinct row in the archive and the stored tuple is distinct from the other Beijing biogenic record in the database.

Scientific note

The active place and scope identify the strongest supported evidence location, the Viikki Tilia site in Helsinki, rather than the Beijing application. The stable Beijing path, origin lineage, target, values, envelope source and legacy identity remain unchanged. Parameter-level provenance now records the mixed tuple without overclaiming: Havu et al. publish the fitted beta and respiration coefficients for Viikki; Bellucco et al. publish the fitted alpha and theta for another Helsinki EC scope; Jarvi et al. set the 0.6 respiration floor from winter soil-chamber evidence; and Zheng et al. compile and apply the exact row in Beijing.

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

alpha_enh-999
beta_enh-999

Model-ready fragment

Paste under land_cover.common 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: 8.3463
  ref:
    ID: havu2022
    DOI: 10.5194/bg-19-2121-2022
    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: 0.78
  ref:
    ID: havu2022
    DOI: 10.5194/bg-19-2121-2022
    desc: helsinki, site
resp_b:
  value: 0.08
  ref:
    ID: havu2022
    DOI: 10.5194/bg-19-2121-2022
    desc: helsinki, site
min_res_bioco2:
  value: 0.6
  ref:
    ID: jarvi2019
    DOI: 10.1029/2018JD029576
    desc: helsinki, 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

Scopesite
Targetland_cover.common · docs
Origin“Beijing” (verbatim legacy string)
Schema2026.5 · legacy row 30240000

Used by 2 typologies

Report an issue