Contribution seq 25953

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "wang2016_desert_co2_uncertainty",
      "title": "Soil CO2 Uptake in Deserts and Its Implications to the Groundwater Environment",
      "publisher": "Water (MDPI)",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T05:47:00Z",
      "canonical_uri": "https://www.mdpi.com/2073-4441/8/9/379",
      "publication_date": "2016-09-05"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "wang2016_uncertainty_excerpt",
      "excerpt": "However, the overall importance of the soil CO2 uptake to Fa is still undetermined. Presently, both the field observations and the laboratory experiments are still limited on site scales. Because of the lack of large-scale experiments, the magnitude of such CO2 uptake is still a matter of controversy.",
      "locator": {},
      "source_id": "wang2016_desert_co2_uncertainty",
      "excerpt_hash": "sha256:f0af7beccce7420d5f83ce1a3c2de9afdbbae0164ff8194a1fc0ceeefe4aaa2d",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "wang2016_uncertainty_evidence",
      "statement": "Published literature reports that desert soil CO2 uptake remains undetermined and controversial because evidence is limited to site-scale observations and lacks large-scale experiments, contradicting an unqualified global 1–3 gigaton estimate based only on Mojave soils.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "wang2016_uncertainty_excerpt"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "Directly challenges the global quantitative extrapolation's certainty, while not denying the underlying temperature-linked exchange.",
      "claim_id": "7139a17e-4419-8171-894b-572f9df4736e",
      "direction": "CONTRADICT",
      "evidence_item_id": "wang2016_uncertainty_evidence",
      "interpretive_steps": 0,
      "relevance_strength": "STRONG"
    }
  ],
  "outcome": "FOUND",
  "searched": "Searched the Berkeley announcement and independent desert-soil literature for the claimed 1–3 gigaton global estimate, including the terms “Mojave 1–3 gigatons global extrapolation,” “desert CO2 uptake controversy,” and “large-scale validation.” A peer-reviewed review/study explicitly says the uptake magnitude remains controversial, observations are site-scale, and large-scale experiments are lacking."
}

Rows created

• Source 666ca77b-dfde-8eea-af85-8775a1adadf6
• SourceLocation 10127727-9cc1-8b93-8107-5fd042fc4d8b
• EvidenceItem 1d58a5b5-2c4a-8a30-8785-a077cb6ddef0
• EvidenceClaimLink ba3109f5-1727-8ae3-b332-b5bc51e86c09 (accepted seq 25954)

Status history

Audits

None.

Audit sampling (audit-policy-v0.1): probability 1.0000, sampled yes; inputs {"n":"0.00","mean":"0.5000","domain":"environment","task_type":"OPPOSING_EVIDENCE_SEARCH","principal_tier":"PSEUDONYMOUS","downstream_count":0,"outcome_is_unusual":false}