{"doi":"10.1002/essoar.10510005.1","title":"Net primary production and ecosystem carbon flux of Brazilian tropical savanna ecosystems from eddy covariance and inventory methods","abstract":"<jats:p>\n                  Estimates of net primary (NPP) and ecosystem production (NEP) are needed\nfor tropical savanna, which is structurally diverse but understudied\ncompared to tropical rainforest. Estimates of NPP and NEP are available\nfrom eddy covariance and inventory methods, but both approaches have\nerrors and uncertainties. We used both methods to estimate carbon (C)\nfluxes for an upland mixed grassland and a seasonally flooded forest to\ndetermine the correspondence in C cycling components derived from these\nmethods and assess the contribution of the various C cycling components\nto the overall NEP. Both techniques provided similar estimates of NPP,\nNEP, and gross primary production (GPP). Belowground NPP accounted for\n49-53% of the total NPP for both ecosystems, followed by aboveground\nlitter (26-27%) and wood (16-17%) production. Increases in water\navailability increased the potential for C storage, but the mechanism\nwas different in the savanna types with an increase in soil moisture\ncausing higher NPP in the mixed grassland but lower ecosystem\nrespiration (R\n                  <jats:sub>eco</jats:sub>\n                  ) in the Cerrado forest. Compared to\nother savanna ecosystems, the mixed grassland had a similar rate of\nR\n                  <jats:sub>eco</jats:sub>\n                  but lower productivity and C use efficiency (CUE =\nNPP/GPP = 0.28). The Cerrado forest had a high CUE (0.58) and similar C\nflux rates to other tropical savanna forests and woodlands. While our\nmeasurements are spatially and temporally limited, the agreement in C\nfluxes estimated using inventory and eddy covariance methods suggest\nthat the C cycle estimates for these savanna ecosystems are robust.\n                </jats:p>","journal":null,"year":null,"id":593497,"datarank":0.10397207708399181,"base_score":0.6931471805599453,"endowment":0.6931471805599453,"self_citation_contribution":0.10397207708399181,"citation_network_contribution":0.0,"self_endowment_contribution":0.10397207708399181,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":1,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1518977,"name":"Osvaldo Borges Pinto Jr.","orcid":"0000-0003-2653-5460","position":1,"is_corresponding":false},{"id":1518979,"name":"Higo José Dalmagro","orcid":"0000-0002-2953-2575","position":2,"is_corresponding":false},{"id":1518981,"name":"Paulo Arruda","orcid":"0000-0001-9123-2779","position":3,"is_corresponding":false},{"id":1518982,"name":"Francisco de Almeida Lobo","orcid":"0000-0002-5670-0351","position":4,"is_corresponding":false},{"id":1518983,"name":"José de Souza Nogueira","orcid":null,"position":5,"is_corresponding":false},{"id":342452,"name":"George L. Vourlitis","orcid":"0000-0003-4304-3951","position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Net primary production and ecosystem carbon flux of Brazilian tropical savanna ecosystems from eddy covariance and inventory methods","abstract":"<jats:p>\n                  Estimates of net primary (NPP) and ecosystem production (NEP) are needed\nfor tropical savanna, which is structurally diverse but understudied\ncompared to tropical rainforest. Estimates of NPP and NEP are available\nfrom eddy covariance and inventory methods, but both approaches have\nerrors and uncertainties. We used both methods to estimate carbon (C)\nfluxes for an upland mixed grassland and a seasonally flooded forest to\ndetermine the correspondence in C cycling components derived from these\nmethods and assess the contribution of the various C cycling components\nto the overall NEP. Both techniques provided similar estimates of NPP,\nNEP, and gross primary production (GPP). Belowground NPP accounted for\n49-53% of the total NPP for both ecosystems, followed by aboveground\nlitter (26-27%) and wood (16-17%) production. Increases in water\navailability increased the potential for C storage, but the mechanism\nwas different in the savanna types with an increase in soil moisture\ncausing higher NPP in the mixed grassland but lower ecosystem\nrespiration (R\n                  <jats:sub>eco</jats:sub>\n                  ) in the Cerrado forest. Compared to\nother savanna ecosystems, the mixed grassland had a similar rate of\nR\n                  <jats:sub>eco</jats:sub>\n                  but lower productivity and C use efficiency (CUE =\nNPP/GPP = 0.28). The Cerrado forest had a high CUE (0.58) and similar C\nflux rates to other tropical savanna forests and woodlands. While our\nmeasurements are spatially and temporally limited, the agreement in C\nfluxes estimated using inventory and eddy covariance methods suggest\nthat the C cycle estimates for these savanna ecosystems are robust.\n                </jats:p>","is_dataset_classified":null,"base_score":0.6931471805599453,"endowment":0.6931471805599453,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"23304386","pmcid":null,"openalex_id":"https://openalex.org/W4206637836","authors":[],"funders":[],"total_grants":0,"fwci":null,"citation_percentile":null,"influential_citations":0,"citation_trend":[{"year":2023,"count":1}],"oa_status":"gold","license":null,"oa_locations":[{"url":"https://essopenarchive.org/doi/pdf/10.1002/essoar.10510005.1","host_type":""},{"url":"https://essopenarchive.org/doi/pdf/10.1002/essoar.10510005.1","host_type":""},{"url":"https://doi.org/10.1002/essoar.10510005.1","host_type":""}],"fields_of_study":["Plant Water Relations and Carbon Dynamics","Forest ecology and management","Remote Sensing in Agriculture"],"mesh_terms":[],"keywords":["Eddy covariance","Primary production","Environmental science","Ecosystem respiration","Ecosystem","Carbon cycle","Grassland","Tropical savanna climate","Productivity","Terrestrial ecosystem","Rainforest","Flux (metallurgy)","Atmospheric sciences","Ecology","Biology"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Clean water and sanitation"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-07-27T11:14:12.578585Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}