{"id":"https://openalex.org/W6949085710","doi":"https://doi.org/10.5281/zenodo.13806552","title":"30 m annual soybean area map in China from 2000 to 2022","display_name":"30 m annual soybean area map in China from 2000 to 2022","publication_year":2024,"publication_date":"2024-09-20","ids":{"openalex":"https://openalex.org/W6949085710","doi":"https://doi.org/10.5281/zenodo.13806552"},"language":"en","primary_location":{"id":"doi:10.5281/zenodo.13806552","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.13806552","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Dataset"},"type":"dataset","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.5281/zenodo.13806552","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Liu, Wenbin","orcid":"https://orcid.org/0000-0003-4547-2506"},"institutions":[{"id":"https://openalex.org/I2799997741","display_name":"Changjiang Water Resources Commission","ror":"https://ror.org/0305bn856","country_code":"CN","type":"government","lineage":["https://openalex.org/I2799997741","https://openalex.org/I4210155611"]},{"id":"https://openalex.org/I4210155611","display_name":"Ministry of Water Resources of the People's Republic of China","ror":"https://ror.org/04e698d63","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210155611"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Liu, Wenbin","raw_affiliation_strings":["Changjiang Institute of Survey Technical Research, Ministry of Water Resources of the People's Republic of China"],"raw_orcid":"https://orcid.org/0000-0003-4547-2506","affiliations":[{"raw_affiliation_string":"Changjiang Institute of Survey Technical Research, Ministry of Water Resources of the People's Republic of China","institution_ids":["https://openalex.org/I2799997741","https://openalex.org/I4210155611"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Li, Shu","orcid":null},"institutions":[{"id":"https://openalex.org/I2799997741","display_name":"Changjiang Water Resources Commission","ror":"https://ror.org/0305bn856","country_code":"CN","type":"government","lineage":["https://openalex.org/I2799997741","https://openalex.org/I4210155611"]},{"id":"https://openalex.org/I4210155611","display_name":"Ministry of Water Resources of the People's Republic of China","ror":"https://ror.org/04e698d63","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210155611"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Li, Shu","raw_affiliation_strings":["Changjiang Institute of Survey Technical Research, Ministry of Water Resources of the People's Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Changjiang Institute of Survey Technical Research, Ministry of Water Resources of the People's Republic of China","institution_ids":["https://openalex.org/I2799997741","https://openalex.org/I4210155611"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Tao, Fulu","orcid":null},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210160793","display_name":"Institute of Geographic Sciences and Natural Resources Research","ror":"https://ror.org/04t1cdb72","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210160793"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tao, Fulu","raw_affiliation_strings":["Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences","institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210160793"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Xie, Jun","orcid":null},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]},{"id":"https://openalex.org/I96852419","display_name":"Capital Normal University","ror":"https://ror.org/005edt527","country_code":"CN","type":"education","lineage":["https://openalex.org/I96852419"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xie, Jun","raw_affiliation_strings":["School of National Safety and Emergency Management, Beijing Normal University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of National Safety and Emergency Management, Beijing Normal University","institution_ids":["https://openalex.org/I25254941","https://openalex.org/I96852419"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Dong, Jinwei","orcid":"https://orcid.org/0000-0001-5687-803X"},"institutions":[{"id":"https://openalex.org/I4210160793","display_name":"Institute of Geographic Sciences and Natural Resources Research","ror":"https://ror.org/04t1cdb72","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210160793"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dong, Jinwei","raw_affiliation_strings":["Institute of Geographic Sciences and Natural Resources Research"],"raw_orcid":"https://orcid.org/0000-0001-5687-803X","affiliations":[{"raw_affiliation_string":"Institute of Geographic Sciences and Natural Resources Research","institution_ids":["https://openalex.org/I4210160793"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Han, Jichong","orcid":null},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]},{"id":"https://openalex.org/I96852419","display_name":"Capital Normal University","ror":"https://ror.org/005edt527","country_code":"CN","type":"education","lineage":["https://openalex.org/I96852419"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Han, Jichong","raw_affiliation_strings":["School of National Safety and Emergency Management, Beijing Normal University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of National Safety and Emergency Management, Beijing Normal University","institution_ids":["https://openalex.org/I25254941","https://openalex.org/I96852419"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Mei, Qinghang","orcid":null},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]},{"id":"https://openalex.org/I96852419","display_name":"Capital Normal University","ror":"https://ror.org/005edt527","country_code":"CN","type":"education","lineage":["https://openalex.org/I96852419"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Mei, Qinghang","raw_affiliation_strings":["School of National Safety and Emergency Management, Beijing Normal University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of National Safety and Emergency Management, Beijing Normal University","institution_ids":["https://openalex.org/I25254941","https://openalex.org/I96852419"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Yin, Lichang","orcid":null},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210160793","display_name":"Institute of Geographic Sciences and Natural Resources Research","ror":"https://ror.org/04t1cdb72","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210160793"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yin, Lichang","raw_affiliation_strings":["Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences","institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210160793"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Zhang, Hongyan","orcid":null},"institutions":[{"id":"https://openalex.org/I3124059619","display_name":"China University of Geosciences","ror":"https://ror.org/04gcegc37","country_code":"CN","type":"education","lineage":["https://openalex.org/I3124059619"]},{"id":"https://openalex.org/I3125743391","display_name":"China University of Geosciences (Beijing)","ror":"https://ror.org/04q6c7p66","country_code":"CN","type":"education","lineage":["https://openalex.org/I3125743391"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhang, Hongyan","raw_affiliation_strings":["School of Computer Sciences, China University of Geosciences"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer Sciences, China University of Geosciences","institution_ids":["https://openalex.org/I3124059619","https://openalex.org/I3125743391"]}]},{"author_position":"last","author":{"id":null,"display_name":"Cao, Juan","orcid":null},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210160793","display_name":"Institute of Geographic Sciences and Natural Resources Research","ror":"https://ror.org/04t1cdb72","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210160793"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Cao, Juan","raw_affiliation_strings":["Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences","institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210160793"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":8,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":true,"primary_topic":null,"topics":[],"keywords":[{"id":"https://openalex.org/keywords/china","display_name":"China","score":0.6327000260353088},{"id":"https://openalex.org/keywords/phenology","display_name":"Phenology","score":0.6054999828338623},{"id":"https://openalex.org/keywords/agriculture","display_name":"Agriculture","score":0.5640000104904175},{"id":"https://openalex.org/keywords/normalized-difference-vegetation-index","display_name":"Normalized Difference Vegetation Index","score":0.435699999332428},{"id":"https://openalex.org/keywords/production","display_name":"Production (economics)","score":0.4059000015258789},{"id":"https://openalex.org/keywords/agricultural-productivity","display_name":"Agricultural productivity","score":0.3894999921321869},{"id":"https://openalex.org/keywords/distribution","display_name":"Distribution (mathematics)","score":0.32359999418258667}],"concepts":[{"id":"https://openalex.org/C191935318","wikidata":"https://www.wikidata.org/wiki/Q148","display_name":"China","level":2,"score":0.6327000260353088},{"id":"https://openalex.org/C51417038","wikidata":"https://www.wikidata.org/wiki/Q272737","display_name":"Phenology","level":2,"score":0.6054999828338623},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.5640000104904175},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.5001999735832214},{"id":"https://openalex.org/C1549246","wikidata":"https://www.wikidata.org/wiki/Q718775","display_name":"Normalized Difference Vegetation Index","level":3,"score":0.435699999332428},{"id":"https://openalex.org/C2778348673","wikidata":"https://www.wikidata.org/wiki/Q739302","display_name":"Production (economics)","level":2,"score":0.4059000015258789},{"id":"https://openalex.org/C128383755","wikidata":"https://www.wikidata.org/wiki/Q3816336","display_name":"Agricultural productivity","level":3,"score":0.3894999921321869},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.3549000024795532},{"id":"https://openalex.org/C100970517","wikidata":"https://www.wikidata.org/wiki/Q52107","display_name":"Physical geography","level":1,"score":0.3361000120639801},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.33410000801086426},{"id":"https://openalex.org/C110121322","wikidata":"https://www.wikidata.org/wiki/Q865811","display_name":"Distribution (mathematics)","level":2,"score":0.32359999418258667},{"id":"https://openalex.org/C88463610","wikidata":"https://www.wikidata.org/wiki/Q194118","display_name":"Agricultural engineering","level":1,"score":0.31310001015663147},{"id":"https://openalex.org/C2777016058","wikidata":"https://www.wikidata.org/wiki/Q7574061","display_name":"Spatial distribution","level":2,"score":0.3111000061035156},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.30219998955726624},{"id":"https://openalex.org/C169258074","wikidata":"https://www.wikidata.org/wiki/Q245748","display_name":"Random forest","level":2,"score":0.29420000314712524},{"id":"https://openalex.org/C159620131","wikidata":"https://www.wikidata.org/wiki/Q1938983","display_name":"Spatial analysis","level":2,"score":0.2913999855518341},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.2815000116825104},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.2743000090122223},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.2718000113964081},{"id":"https://openalex.org/C48824518","wikidata":"https://www.wikidata.org/wiki/Q396340","display_name":"Agricultural economics","level":1,"score":0.27079999446868896},{"id":"https://openalex.org/C136389625","wikidata":"https://www.wikidata.org/wiki/Q334384","display_name":"Supervised learning","level":3,"score":0.26010000705718994}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.5281/zenodo.13806552","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.13806552","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Dataset"}],"best_oa_location":{"id":"doi:10.5281/zenodo.13806552","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.13806552","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Dataset"},"sustainable_development_goals":[{"score":0.7146221399307251,"id":"https://metadata.un.org/sdg/2","display_name":"Zero hunger"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"China":[0,60,70,111],"is":[1,36],"the":[2,15,25,31,69,79,83,128,163],"world\u2019s":[3],"largest":[4],"consumer":[5],"and":[6,19,33,43,89,93,112,139,147,190,199],"importer":[7],"of":[8,17,28,59,102,130,196],"soybeans,":[9],"with":[10,184,193],"rising":[11],"domestic":[12],"demand":[13],"driving":[14],"expansion":[16],"production":[18],"cultivation":[20,57],"areas":[21,58],"since":[22],"2000.":[23],"Knowing":[24],"spatial":[26,53],"distribution":[27],"soybean,":[29],"including":[30],"trends":[32],"interannual":[34],"variability,":[35],"essential":[37],"for":[38,55,118],"yield":[39],"estimation,":[40],"agricultural":[41,108],"planning,":[42],"ensuring":[44],"national":[45,84],"food":[46],"security.":[47],"However,":[48],"a":[49,76,90,122,157],"high-precision,":[50],"long-term,":[51],"national-scale":[52],"dataset":[54,74,180],"soybean":[56,176],"remains":[61],"unavailable.":[62],"To":[63,126],"address":[64],"this":[65],"gap,":[66],"we":[67,133],"developed":[68],"Soybean":[71],"Area":[72],"(ChinaSoyA30m)":[73],"at":[75,82,187],"30-m":[77],"resolution\u2014covering":[78],"years":[80],"2000\u20132022":[81],"scale,":[85],"using":[86,156],"Landsat":[87],"imagery":[88],"combined":[91],"phenology-based":[92],"machine":[94],"learning":[95],"approach.":[96],"We":[97],"analyzed":[98],"time-series":[99],"phenological":[100],"characteristics":[101],"major":[103,107],"crops":[104],"across":[105],"nine":[106],"regions":[109],"in":[110],"automatically":[113],"generated":[114],"annual":[115],"training":[116],"samples":[117],"supervised":[119,152],"classifiers":[120],"through":[121],"GWCCI-derived":[123],"unsupervised":[124],"method.":[125],"enhance":[127],"accuracy":[129],"these":[131],"samples,":[132],"applied":[134],"gap":[135],"statistics,":[136],"K-means":[137],"clustering,":[138],"spectral":[140],"angle":[141],"mapping":[142],"techniques":[143],"to":[144,173],"minimize":[145],"noise":[146],"improve":[148],"classification":[149,153],"reliability.":[150],"The":[151],"was":[154],"conducted":[155],"multi-random":[158],"forest":[159],"fusion":[160],"strategy":[161],"on":[162],"Google":[164],"Earth":[165],"Engine":[166],"(GEE)":[167],"platform,":[168],"leveraging":[169],"dense":[170],"Landsat-5/7/8/9":[171],"data":[172],"generate":[174],"yearly":[175],"maps.":[177],"Our":[178],"ChinaSoyA30m":[179],"showed":[181],"strong":[182],"correlation":[183],"official":[185],"statistics":[186],"provincial,":[188],"prefectural,":[189],"county":[191],"levels,":[192],"R2":[194],"values":[195],"0.95,":[197],"0.89,":[198],"0.80,":[200],"respectively.":[201]},"counts_by_year":[],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}