{"id":"https://openalex.org/A5076661995","orcid":null,"observed_orcids":[],"display_name":"Martti Esala","raw_author_names":["Esala, Martti","M. ESALA","M. Esala","M. J. Esala","M.J. Esala","Martti Esala"],"full_name":"Esala, Martti","works_count":120,"cited_by_count":1847,"summary_stats":{"2yr_mean_citedness":11.0,"h_index":20,"i10_index":25},"ids":{"openalex":"https://openalex.org/A5076661995","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1323065761","ror":"https://ror.org/01n1rg855","display_name":"Statistics Finland","country_code":"FI","type":"other","lineage":["https://openalex.org/I1323065761"]},"years":[2004]},{"institution":{"id":"https://openalex.org/I133731052","ror":"https://ror.org/040af2s02","display_name":"University of Helsinki","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]},"years":[2006]},{"institution":{"id":"https://openalex.org/I2800424308","ror":"https://ror.org/013nat269","display_name":"Finnish Environment Institute","country_code":"FI","type":"government","lineage":["https://openalex.org/I2800424308","https://openalex.org/I4210136438"]},"years":[2004]},{"institution":{"id":"https://openalex.org/I3017910207","ror":"https://ror.org/02hb7bm88","display_name":"Natural Resources Institute Finland","country_code":"FI","type":"government","lineage":["https://openalex.org/I3017910207","https://openalex.org/I4210153464"]},"years":[2024,2019,2015]},{"institution":{"id":"https://openalex.org/I4210163838","ror":"https://ror.org/05kh5wx29","display_name":"Agrifood Research Finland","country_code":"FI","type":"government","lineage":["https://openalex.org/I3017910207","https://openalex.org/I4210153464","https://openalex.org/I4210163838"]},"years":[2015,2013,2012,2011,2010,2008,2006,2005,2004,2002,2001,1998,1996,1995,1994]},{"institution":{"id":"https://openalex.org/I87653560","ror":"https://ror.org/04b181w54","display_name":"VTT Technical Research Centre of Finland","country_code":"FI","type":"nonprofit","lineage":["https://openalex.org/I4210089493","https://openalex.org/I87653560"]},"years":[2004]}],"last_known_institutions":[{"id":"https://openalex.org/I3017910207","ror":"https://ror.org/02hb7bm88","display_name":"Natural Resources Institute Finland","country_code":"FI","type":"government","lineage":["https://openalex.org/I3017910207","https://openalex.org/I4210153464"]}],"topics":[{"id":"https://openalex.org/T10004","display_name":"Soil Carbon and Nitrogen Dynamics","count":73,"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/T12294","display_name":"Agricultural Science and Fertilization","count":43,"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/T11311","display_name":"Soil and Water Nutrient Dynamics","count":39,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"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/T12754","display_name":"Plant Growth and Agriculture Techniques","count":19,"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/T12896","display_name":"Sustainable Agricultural Systems Analysis","count":18,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop 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"}}],"topic_share":[{"id":"https://openalex.org/T11311","display_name":"Soil and Water Nutrient Dynamics","value":0.0001964,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"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/T10004","display_name":"Soil Carbon and Nitrogen Dynamics","value":0.0001402,"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/T12896","display_name":"Sustainable Agricultural Systems Analysis","value":0.0001253,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop 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/T12091","display_name":"Peatlands and Wetlands Ecology","value":9.1e-05,"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/T12294","display_name":"Agricultural Science and Fertilization","value":7.4e-05,"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"}}],"x_concepts":[{"id":"39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","score":0.7933752536773682},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.7921240329742432},{"id":"159390177","wikidata":"https://www.wikidata.org/wiki/Q9161265","display_name":"Soil science","score":0.4303673505783081},{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.3388345241546631},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.08929157257080078}],"counts_by_year":[{"year":1984,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1985,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1991,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":2001,"works_count":8,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":17,"oa_works_count":7,"cited_by_count":0},{"year":2003,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2004,"works_count":13,"oa_works_count":4,"cited_by_count":0},{"year":2005,"works_count":7,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":7,"oa_works_count":2,"cited_by_count":0},{"year":2007,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":2009,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":5,"oa_works_count":0,"cited_by_count":95},{"year":2013,"works_count":2,"oa_works_count":1,"cited_by_count":80},{"year":2014,"works_count":6,"oa_works_count":0,"cited_by_count":113},{"year":2015,"works_count":4,"oa_works_count":2,"cited_by_count":124},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":91},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":72},{"year":2018,"works_count":2,"oa_works_count":1,"cited_by_count":85},{"year":2019,"works_count":1,"oa_works_count":0,"cited_by_count":89},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":101},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":110},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":74},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":78},{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":91},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":70},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":66}],"display_name_alternatives":["Esala, Martti","M. ESALA","M. Esala","M. J. Esala","M.J. Esala","Martti Esala"],"block_key":"m esala","works_api_url":"https://api.openalex.org/works?filter=author.id:A5076661995","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5076661995","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}