{"id":"https://openalex.org/W3199694635","doi":"https://doi.org/10.1109/agro-geoinformatics50104.2021.9530363","title":"Study on remote sensing feature selection of green manure crop Astragalus sinicus based on multitemporal Sentinel-2 imagery","display_name":"Study on remote sensing feature selection of green manure crop Astragalus sinicus based on multitemporal Sentinel-2 imagery","publication_year":2021,"publication_date":"2021-07-26","ids":{"openalex":"https://openalex.org/W3199694635","doi":"https://doi.org/10.1109/agro-geoinformatics50104.2021.9530363","mag":"3199694635"},"language":"en","primary_location":{"id":"doi:10.1109/agro-geoinformatics50104.2021.9530363","is_oa":false,"landing_page_url":"https://doi.org/10.1109/agro-geoinformatics50104.2021.9530363","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 9th International Conference on Agro-Geoinformatics (Agro-Geoinformatics)","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100426852","display_name":"Jingjing Wang","orcid":"https://orcid.org/0000-0001-8147-8441"},"institutions":[{"id":"https://openalex.org/I4210087107","display_name":"Jiangsu Academy of Agricultural Sciences","ror":"https://ror.org/001f9e125","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210087107"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jingjing Wang","raw_affiliation_strings":["Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China","institution_ids":["https://openalex.org/I4210087107"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101918477","display_name":"Lin Qiu","orcid":"https://orcid.org/0000-0002-3407-488X"},"institutions":[{"id":"https://openalex.org/I4210087107","display_name":"Jiangsu Academy of Agricultural Sciences","ror":"https://ror.org/001f9e125","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210087107"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lin Qiu","raw_affiliation_strings":["Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China","institution_ids":["https://openalex.org/I4210087107"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100372807","display_name":"Zhiming Wang","orcid":"https://orcid.org/0000-0002-9301-1942"},"institutions":[{"id":"https://openalex.org/I4210087107","display_name":"Jiangsu Academy of Agricultural Sciences","ror":"https://ror.org/001f9e125","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210087107"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhiming Wang","raw_affiliation_strings":["Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China","institution_ids":["https://openalex.org/I4210087107"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101472444","display_name":"Xiaojun Huang","orcid":"https://orcid.org/0000-0001-8568-2634"},"institutions":[{"id":"https://openalex.org/I4210087107","display_name":"Jiangsu Academy of Agricultural Sciences","ror":"https://ror.org/001f9e125","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210087107"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaojun Huang","raw_affiliation_strings":["Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China","institution_ids":["https://openalex.org/I4210087107"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043731325","display_name":"Jie Shan","orcid":"https://orcid.org/0000-0002-1948-9657"},"institutions":[{"id":"https://openalex.org/I4210087107","display_name":"Jiangsu Academy of Agricultural Sciences","ror":"https://ror.org/001f9e125","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210087107"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jie Shan","raw_affiliation_strings":["Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China","institution_ids":["https://openalex.org/I4210087107"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100399456","display_name":"Mu Li","orcid":"https://orcid.org/0000-0001-7883-5524"},"institutions":[{"id":"https://openalex.org/I4210087107","display_name":"Jiangsu Academy of Agricultural Sciences","ror":"https://ror.org/001f9e125","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210087107"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Mu Li","raw_affiliation_strings":["Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jiangsu Academy of AgriculturalSciences, Institute of Agricultural Information, Nanjing, China","institution_ids":["https://openalex.org/I4210087107"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4210087107"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":1,"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":false,"primary_topic":{"id":"https://openalex.org/T13890","display_name":"Remote Sensing and Land Use","score":0.9987000226974487,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T13890","display_name":"Remote Sensing and Land Use","score":0.9987000226974487,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.9975000023841858,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10689","display_name":"Remote-Sensing Image Classification","score":0.9861999750137329,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.5895107388496399},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5710362792015076},{"id":"https://openalex.org/keywords/sowing","display_name":"Sowing","score":0.5632486939430237},{"id":"https://openalex.org/keywords/vegetation","display_name":"Vegetation (pathology)","score":0.5370814800262451},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.34851306676864624},{"id":"https://openalex.org/keywords/agronomy","display_name":"Agronomy","score":0.1989383101463318}],"concepts":[{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.5895107388496399},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5710362792015076},{"id":"https://openalex.org/C168741863","wikidata":"https://www.wikidata.org/wiki/Q777671","display_name":"Sowing","level":2,"score":0.5632486939430237},{"id":"https://openalex.org/C2776133958","wikidata":"https://www.wikidata.org/wiki/Q7918366","display_name":"Vegetation (pathology)","level":2,"score":0.5370814800262451},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.34851306676864624},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.1989383101463318},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/agro-geoinformatics50104.2021.9530363","is_oa":false,"landing_page_url":"https://doi.org/10.1109/agro-geoinformatics50104.2021.9530363","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 9th International Conference on Agro-Geoinformatics (Agro-Geoinformatics)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8299999833106995,"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1963809378","https://openalex.org/W1997266195","https://openalex.org/W2023912087","https://openalex.org/W2061240006","https://openalex.org/W2099507093","https://openalex.org/W2141262520","https://openalex.org/W2149438142","https://openalex.org/W2289154130","https://openalex.org/W2367057149","https://openalex.org/W2367407528","https://openalex.org/W2375256492","https://openalex.org/W2383321678","https://openalex.org/W2777188532","https://openalex.org/W2943595298","https://openalex.org/W6746815161","https://openalex.org/W7058407352"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2382423801","https://openalex.org/W2361404876","https://openalex.org/W2372348061","https://openalex.org/W2351979363","https://openalex.org/W3178516037","https://openalex.org/W2392295380","https://openalex.org/W2370438650","https://openalex.org/W3045348154","https://openalex.org/W2385623625"],"abstract_inverted_index":{"Astragalus":[0,83,115,134,194,216,228],"sinicus":[1,84,116,135,195,229],"is":[2,30,39,93],"the":[3,33,55,68,78,94,109,114,139,158,178,188,207,224],"main":[4,110],"planting":[5,17],"and":[6,29,48,61,72,99,170,186,218],"utilization":[7],"of":[8,18,35,40,58,70,80,96,113,130,133,143,180,193,210,226],"green":[9,19,144],"manure":[10,20,145],"crop":[11,146],"in":[12,138,148],"southern":[13],"China.":[14],"Crop":[15],"rotation":[16,147],"could":[21,75],"increase":[22],"soil":[23,26],"fertility,":[24],"improve":[25],"micro-ecological":[27],"environment,":[28],"conducive":[31],"to":[32,87,120,176],"enhancement":[34],"farmland":[36,45],"productivity,":[37],"which":[38,74],"great":[41],"significance":[42],"for":[43,215,223],"protecting":[44],"ecological":[46],"environment":[47],"promoting":[49],"agricultural":[50],"sustainable":[51],"development.":[52],"Compared":[53],"with":[54],"traditional":[56],"means":[57],"ground":[59],"survey":[60],"statistics":[62],"method,":[63],"remote":[64,90,230],"sensing":[65,91,231],"technology":[66],"has":[67],"characteristics":[69,132],"macroscopic":[71],"real-time,":[73],"quickly":[76],"obtain":[77],"distribution":[79],"regional":[81],"scale":[82],"planting.":[85],"How":[86],"establish":[88],"distinguishable":[89],"features":[92],"basis":[95,222],"its":[97],"recognition":[98,184,190,208],"extraction.":[100],"In":[101],"this":[102,156,203],"study,":[103,204],"multi-temporal":[104,159,211],"Sentinel":[105,212],"2":[106,213],"images":[107,214],"covering":[108],"growing":[111],"period":[112],"from":[117],"December":[118],"2019":[119],"June":[121],"2020":[122],"were":[123,136,174],"selected":[124],"as":[125],"data":[126,162],"source.":[127],"The":[128,166],"variation":[129],"spectral":[131],"studied":[137],"typical":[140],"pilot":[141],"area":[142],"Liuhe":[149],"District,":[150],"Nanjing":[151],"City,":[152],"Jiangsu":[153],"Province.":[154],"On":[155],"basis,":[157],"vegetation":[160],"index":[161],"set":[163,192],"was":[164,200],"constructed.":[165],"recursive":[167],"feature":[168,181,191],"elimination":[169],"random":[171],"forest":[172],"algorithm":[173],"used":[175],"analyze":[177],"influence":[179],"composition":[182],"on":[183],"accuracy,":[185],"then":[187],"effective":[189],"at":[196],"different":[197],"time":[198],"phases":[199],"established.":[201],"Through":[202],"we":[205],"explored":[206],"ability":[209],"sinicus,":[217],"provided":[219],"a":[220],"theoretical":[221],"study":[225],"regional-scale":[227],"monitoring.":[232]},"counts_by_year":[{"year":2022,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}