{"id":"W2031247021","doi":"10.3389/fpls.2014.00288","title":"Complexities of nitrogen isotope biogeochemistry in plant-soil systems: implications for the study of ancient agricultural and animal management practices","year":2014,"lang":"en","type":"review","venue":"Frontiers in Plant Science","topic":"Archaeology and ancient environmental studies","field":"Earth and Planetary Sciences","cited_by":427,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"","keywords":"Biogeochemistry; Isotope analysis; Agriculture; Ecosystem; Biogeochemical cycle; Earth science; Ecology; Environmental science; Tillage; Biology; Geology","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":[0.001052967,0.0006516383,0.0016049,0.002621647,0.0003736725,0.00111358,0.0008741794,0.001283827,0.001561632],"category_scores_gemma":[0.00144266,0.0002682774,0.0003384187,0.004592497,0.001354694,0.002061909,0.0009759078,0.001279215,0.0006093195],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009447496,"about_ca_system_score_gemma":0.002255015,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003922477,"about_ca_topic_score_gemma":0.006183609,"domain_scores_codex":[0.9997119,0.00006052627,0.00003781343,0.0000794208,0.00009021373,0.00002008484],"domain_scores_gemma":[0.9992387,0.0004431137,0.00009417006,0.00002741396,0.0001627974,0.00003369712],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"not_applicable","study_design_scores_codex":[0.00004960617,0.00003037678,0.0006522919,0.02605075,0.000105247,0.0002194133,0.0002955606,0.0005762806,0.002327753,0.008757576,0.006201494,0.9547336],"study_design_scores_gemma":[0.00000830497,0.00009259542,0.005793437,0.008461309,0.0001668491,0.001520462,0.0005649235,0.0001562981,0.0009509517,0.01012196,0.972111,0.00005195024],"study_design_candidate":"not_applicable","study_design_consensus":null,"genre_codex":"review","genre_gemma":"review","genre_scores_codex":[0.000121291,0.9992077,0.00008777266,0.0001668781,0.00004695297,9.496952e-7,0.000006603057,0.000001622438,0.0003601935],"genre_scores_gemma":[0.0008583395,0.9987056,0.0001352283,0.00006808183,0.00004733946,0.000002012832,0.000009628608,6.570465e-7,0.0001730993],"genre_candidate":"review","genre_consensus":"review","teacher_disagreement_score":0.003922477,"threshold_uncertainty_score":0.007799268,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03922929192943117,"score_gpt":0.2670363034642811,"score_spread":0.22780701153485,"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."}}