{"id":"W2034440883","doi":"10.1007/s10021-001-0027-y","title":"Tracing the Sources of Exported Nitrate in the Turkey Lakes Watershed Using 15 N/ 14 N and 18 O/ 16 O isotopic ratios","year":2001,"lang":"en","type":"article","venue":"Ecosystems","topic":"Groundwater and Isotope Geochemistry","field":"Earth and Planetary Sciences","cited_by":96,"is_retracted":false,"has_abstract":false,"ca_institutions":"Environment and Climate Change Canada; University of Waterloo","funders":"","keywords":"Nitrate; Nitrification; Watershed; Environmental chemistry; δ18O; Environmental science; Soil water; δ15N; Nitrogen; Deposition (geology); Precipitation; Hydrology (agriculture); Nitrogen cycle; Stable isotope ratio; Chemistry; Soil science; Geology; Geography; δ13C; Sediment","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"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":[0.00009647243,0.0001945664,0.0001567395,0.0004167676,0.0003396934,0.0003758399,0.0002871493,0.00030634,0.0002471777],"category_scores_gemma":[0.0001091474,0.0001938304,0.000118144,0.0004048292,0.000201825,0.0003323165,0.0002369098,0.0001509761,0.00005950702],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007844353,"about_ca_system_score_gemma":0.0005208493,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.06242972,"about_ca_topic_score_gemma":0.08876057,"domain_scores_codex":[0.9999472,0.000004075379,0.00000387216,0.0000257976,0.000008057378,0.00001103185],"domain_scores_gemma":[0.9999661,0.000005988665,0.00000701939,0.000001433048,0.00001403478,0.000005332518],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0007359177,0.0001242427,0.654258,0.00009970335,0.00006965442,0.0008509188,0.001289217,0.004362119,0.3103423,0.0006929737,0.0002800629,0.02689487],"study_design_scores_gemma":[0.00002690798,0.0001011086,0.9517176,0.00001376351,0.00005457763,0.0001805928,0.00093481,0.0144484,0.03082584,0.000259355,0.001418948,0.00001801728],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9993808,0.00003103256,0.0001495562,0.000006975879,0.000001192176,0.000001866081,0.00007204243,0.000004659092,0.0003518117],"genre_scores_gemma":[0.998895,0.00005976311,0.0005726053,0.0000036717,7.843982e-7,0.000003639695,0.0001109571,0.000004152209,0.0003495024],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.06242972,"threshold_uncertainty_score":0.1241327,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02483197225235749,"score_gpt":0.2111659009488661,"score_spread":0.1863339286965086,"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."}}