{"id":"W2159007246","doi":"10.1093/treephys/27.10.1361","title":"Environmental controls on the carbon isotope composition of ecosystem-respired CO2 in contrasting forest ecosystems in Canada and the USA","year":2007,"lang":"en","type":"article","venue":"Tree Physiology","topic":"Plant Water Relations and Carbon Dynamics","field":"Environmental Science","cited_by":30,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Lethbridge","funders":"Natural Sciences and Engineering Research Council of Canada; Canadian Foundation for Climate and Atmospheric Sciences; Office of Science; BIOCAP Canada; University of Lethbridge; U.S. Department of Energy","keywords":"Taiga; Deciduous; Ecosystem; Isotopes of carbon; Boreal ecosystem; Boreal; Forest ecology; Ecology; Environmental science; Stable isotope ratio; Atmospheric sciences; Environmental chemistry; Biology; Chemistry; Total organic carbon; Geology; Physics","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004633971,0.0002877136,0.0003402903,0.0009098849,0.001487762,0.001039664,0.0004590496,0.0002800542,0.0003871667],"category_scores_gemma":[0.0009026002,0.0002200446,0.0002419134,0.001455142,0.0007486566,0.0002411043,0.0005701747,0.000275166,0.00004953891],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.01189772,"about_ca_system_score_gemma":0.007634641,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9700215,"about_ca_topic_score_gemma":0.9914111,"domain_scores_codex":[0.9996361,0.00004455563,0.00001700038,0.00008747246,0.00009535618,0.0001195754],"domain_scores_gemma":[0.9989724,0.00008949846,0.0001174327,0.00002491975,0.0005763727,0.0002193611],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0003704639,0.00004691419,0.9732026,0.00004295705,0.0001874033,0.0001452631,0.001375465,0.0004989267,0.01616155,0.0001594618,0.0004934878,0.007315454],"study_design_scores_gemma":[0.000003510578,0.000007119726,0.9986132,0.000004029683,0.00001694773,0.00001654897,0.0005341718,0.0002163234,0.0002515802,0.00001280113,0.0003183838,0.000005272264],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9989318,0.0001890167,0.00005563859,0.00004472593,0.000002309512,0.000004743861,0.0002787034,0.000004193903,0.0004887847],"genre_scores_gemma":[0.9989889,0.0001238488,0.0001592092,0.00005540328,0.000001230758,0.000004803201,0.0004797986,0.000004011181,0.0001828165],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02997851,"threshold_uncertainty_score":0.08632445,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.005250277173631191,"score_gpt":0.1727025857388605,"score_spread":0.1674523085652293,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}