{"id":"https://openalex.org/W2320186887","doi":"https://doi.org/10.1093/treephys/19.12.823","title":"Fine root biomass of Scots pine stands differing in age and soil fertility in southern Finland","display_name":"Fine root biomass of Scots pine stands differing in age and soil fertility in southern Finland","publication_year":1999,"publication_date":"1999-10-01","ids":{"openalex":"https://openalex.org/W2320186887","doi":"https://doi.org/10.1093/treephys/19.12.823","mag":"2320186887","pmid":"https://pubmed.ncbi.nlm.nih.gov/10562399"},"language":"en","primary_location":{"id":"doi:10.1093/treephys/19.12.823","doi":"https://doi.org/10.1093/treephys/19.12.823","is_oa":false,"landing_page_url":"https://doi.org/10.1093/treephys/19.12.823","pdf_url":null,"source":{"id":"https://openalex.org/S147008614","display_name":"Tree Physiology","issn_l":"0829-318X","issn":["0829-318X","1758-4469"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-2","medline","norway-1","poland-140","russia-white-list-1"],"host_organization":"https://openalex.org/P4310311648","host_organization_name":"Oxford University Press","host_organization_lineage":["https://openalex.org/P4310311648","https://openalex.org/P4310311647"],"host_organization_lineage_names":["Oxford University Press","University of Oxford"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Tree Physiology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"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/A5063692991","display_name":"Paula Sinikka Vanninen","orcid":"https://orcid.org/0000-0001-9579-0380","observed_orcids":["https://orcid.org/0000-0001-9579-0380"]},"institutions":[{"id":"https://openalex.org/I133731052","display_name":"University of Helsinki","ror":"https://ror.org/040af2s02","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"P. Vanninen","raw_affiliation_strings":["Department of Forest Ecology P.O. Box 24, FI-00014 Helsinki University Finland","Saima Centre for Environmental Sciences Linnankatu 11, FIN-57130 Savonlinna, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Forest Ecology P.O. Box 24, FI-00014 Helsinki University Finland","institution_ids":["https://openalex.org/I133731052"]},{"raw_affiliation_string":"Saima Centre for Environmental Sciences Linnankatu 11, FIN-57130 Savonlinna, Finland","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5017097891","display_name":"Annikki M\u00e4kel\u00e4","orcid":"https://orcid.org/0000-0001-9633-7350","observed_orcids":["https://orcid.org/0000-0001-9633-7350"]},"institutions":[{"id":"https://openalex.org/I133731052","display_name":"University of Helsinki","ror":"https://ror.org/040af2s02","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"A. Makela","raw_affiliation_strings":["Department of Forest Ecology P.O. Box 24, FI-00014 Helsinki University Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Forest Ecology P.O. Box 24, FI-00014 Helsinki University Finland","institution_ids":["https://openalex.org/I133731052"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I133731052"],"apc_list":{"value":4253,"currency":"USD","value_usd":4253},"apc_paid":null,"fwci":9.4661,"has_fulltext":false,"cited_by_count":200,"citation_normalized_percentile":{"value":0.97630252,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":93,"max":100},"biblio":{"volume":"19","issue":"12","first_page":"823","last_page":"830"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11880","display_name":"Forest ecology and management","score":0.9818999767303467,"subfield":{"id":"https://openalex.org/subfields/1107","display_name":"Forestry"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T11880","display_name":"Forest ecology and management","score":0.9818999767303467,"subfield":{"id":"https://openalex.org/subfields/1107","display_name":"Forestry"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10004","display_name":"Soil Carbon and Nitrogen Dynamics","score":0.013899999670684338,"subfield":{"id":"https://openalex.org/subfields/1111","display_name":"Soil Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12729","display_name":"Tree Root and Stability Studies","score":0.000699999975040555,"subfield":{"id":"https://openalex.org/subfields/1107","display_name":"Forestry"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/fine-root-biomass","display_name":"fine root biomass","score":0.972000002861023},{"id":"https://openalex.org/keywords/pinus-sylvestris","display_name":"Pinus sylvestris","score":0.9900000095367432},{"id":"https://openalex.org/keywords/soil-fertility","display_name":"soil fertility","score":0.6620000004768372},{"id":"https://openalex.org/keywords/stand-age","display_name":"stand age","score":0.9879999756813049},{"id":"https://openalex.org/keywords/foliar-biomass","display_name":"foliage biomass","score":0.6460000276565552},{"id":"https://openalex.org/keywords/humus-layer","display_name":"humus layer","score":0.7749999761581421},{"id":"https://openalex.org/keywords/mineral-soils","display_name":"mineral soils","score":0.8870000243186951},{"id":"https://openalex.org/keywords/functional-balance","display_name":"functional balance","score":0.7059999704360962},{"id":"https://openalex.org/keywords/southern-finland","display_name":"southern Finland","score":0.6330000162124634}],"concepts":[{"id":"https://openalex.org/C52201283","wikidata":"https://www.wikidata.org/wiki/Q172645","display_name":"Humus","level":3,"score":0.7884917259216309},{"id":"https://openalex.org/C115540264","wikidata":"https://www.wikidata.org/wiki/Q2945560","display_name":"Biomass (ecology)","level":2,"score":0.7428221702575684},{"id":"https://openalex.org/C2779128174","wikidata":"https://www.wikidata.org/wiki/Q133128","display_name":"Scots pine","level":3,"score":0.6366575956344604},{"id":"https://openalex.org/C159750122","wikidata":"https://www.wikidata.org/wiki/Q96621023","display_name":"Soil water","level":2,"score":0.5750488042831421},{"id":"https://openalex.org/C38774213","wikidata":"https://www.wikidata.org/wiki/Q202080","display_name":"Soil fertility","level":3,"score":0.5334553718566895},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.4873410165309906},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.46073031425476074},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.44472843408584595},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.41018742322921753},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.2575310468673706},{"id":"https://openalex.org/C2910048773","wikidata":"https://www.wikidata.org/wiki/Q1924659","display_name":"Pinus <genus>","level":2,"score":0.08271729946136475}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1093/treephys/19.12.823","doi":"https://doi.org/10.1093/treephys/19.12.823","is_oa":false,"landing_page_url":"https://doi.org/10.1093/treephys/19.12.823","pdf_url":null,"source":{"id":"https://openalex.org/S147008614","display_name":"Tree Physiology","issn_l":"0829-318X","issn":["0829-318X","1758-4469"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-2","medline","norway-1","poland-140","russia-white-list-1"],"host_organization":"https://openalex.org/P4310311648","host_organization_name":"Oxford University Press","host_organization_lineage":["https://openalex.org/P4310311648","https://openalex.org/P4310311647"],"host_organization_lineage_names":["Oxford University Press","University of Oxford"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Tree Physiology","raw_type":"journal-article"},{"id":"pmid:10562399","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/10562399","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Tree physiology","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Life on land","id":"https://metadata.un.org/sdg/15","score":0.8518999814987183}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":52,"referenced_works":["https://openalex.org/W34954101","https://openalex.org/W123524751","https://openalex.org/W182410723","https://openalex.org/W194699014","https://openalex.org/W644779254","https://openalex.org/W1489536477","https://openalex.org/W1511490156","https://openalex.org/W1965461848","https://openalex.org/W1966656616","https://openalex.org/W1970788499","https://openalex.org/W1972006589","https://openalex.org/W1986539539","https://openalex.org/W1987938462","https://openalex.org/W1994882300","https://openalex.org/W1997350123","https://openalex.org/W2013056909","https://openalex.org/W2019824612","https://openalex.org/W2022244833","https://openalex.org/W2024424774","https://openalex.org/W2026217925","https://openalex.org/W2032510974","https://openalex.org/W2041497511","https://openalex.org/W2046595100","https://openalex.org/W2048053166","https://openalex.org/W2049115830","https://openalex.org/W2050671229","https://openalex.org/W2058837602","https://openalex.org/W2062392247","https://openalex.org/W2071845379","https://openalex.org/W2074678453","https://openalex.org/W2076870934","https://openalex.org/W2077268807","https://openalex.org/W2081950074","https://openalex.org/W2086850624","https://openalex.org/W2095493050","https://openalex.org/W2118725895","https://openalex.org/W2150095684","https://openalex.org/W2165712664","https://openalex.org/W2198127069","https://openalex.org/W2291679924","https://openalex.org/W2317227475","https://openalex.org/W2317605050","https://openalex.org/W2326622173","https://openalex.org/W2330946153","https://openalex.org/W2343697899","https://openalex.org/W2441291669","https://openalex.org/W2462044218","https://openalex.org/W2465835436","https://openalex.org/W2473171811","https://openalex.org/W2523047018","https://openalex.org/W2795536332","https://openalex.org/W3036727350"],"related_works":["https://openalex.org/W2149547139","https://openalex.org/W2052238294","https://openalex.org/W4404386787","https://openalex.org/W2316092448","https://openalex.org/W2022244833","https://openalex.org/W4205184869","https://openalex.org/W2134636058","https://openalex.org/W1991634932","https://openalex.org/W2553812332","https://openalex.org/W2391335533"],"abstract_inverted_index":{"The":[0,45,124],"biomass":[1,28,101,114,119],"of":[2,20,98,126,144,161],"small":[3,111],"and":[4,11,43,72,79],"large":[5,156],"fine":[6,74,99,112,157,163],"roots":[7],"(</=":[8],"2":[9],"mm":[10,13],"2-5":[12],"in":[14,17,29,40,66,69,77],"diameter,":[15],"respectively)":[16],"mineral":[18,70,78],"soils":[19],"southern":[21],"Finland":[22],"was":[23,35,48,64,82,102,115,128,170],"compared":[24],"with":[25,105,167],"estimated":[26],"foliage":[27,118],"the":[30,51,57,73,85,91,96,131,137,142,155,175],"same":[31],"stands.":[32],"Study":[33],"material":[34],"collected":[36],"from":[37],"stands":[38,173],"differing":[39],"site":[41,122],"fertility":[42],"age.":[44],"humus":[46,67,80],"layer":[47],"deeper":[49],"at":[50,56,84,90],"more":[52,92,138],"fertile":[53,59,87,93,133,139,177],"sites":[54,88,134],"than":[55,68,89,135],"less":[58,86,132,176],"sites.":[60,94,178],"Fine":[61],"root":[62,75,100,113],"density":[63,76],"greater":[65,83],"soil,":[71],"layers":[81],"Although":[95],"amount":[97],"not":[103,151],"correlated":[104],"any":[106],"commonly":[107],"recorded":[108],"stand":[109,168],"characteristic,":[110],"proportional":[116],"to":[117],"for":[120,130,136,154,172],"both":[121],"types.":[123],"coefficient":[125],"proportionality":[127],"larger":[129],"sites,":[140],"supporting":[141],"theory":[143],"functional":[145],"balance.":[146],"A":[147,159],"similar":[148],"relationship":[149],"could":[150],"be":[152],"established":[153],"roots.":[158],"trend":[160],"increasing":[162],"root:needle":[164],"mass":[165],"ratio":[166],"age":[169],"observed":[171],"on":[174]},"counts_by_year":[{"year":2026,"cited_by_count":5},{"year":2024,"cited_by_count":9},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":8},{"year":2018,"cited_by_count":6},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":6},{"year":2015,"cited_by_count":14},{"year":2014,"cited_by_count":7},{"year":2013,"cited_by_count":8},{"year":2012,"cited_by_count":12}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2016-06-24T00:00:00"}