{"id":"https://openalex.org/W3104024221","doi":null,"title":"Long-term trajectories: crop yields, farmland, and irrigated agriculture.","display_name":"Long-term trajectories: crop yields, farmland, and irrigated agriculture.","publication_year":2016,"publication_date":"2016-01-01","ids":{"openalex":"https://openalex.org/W3104024221","mag":"3104024221"},"language":"en","primary_location":{"id":"mag:3104024221","doi":null,"is_oa":false,"landing_page_url":"https://www.cabdirect.org/cabdirect/abstract/20163375122","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"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/A5051973791","display_name":"Kenneth G. Cassman","orcid":"https://orcid.org/0000-0002-9775-3468","observed_orcids":["https://orcid.org/0000-0002-9775-3468"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Kenneth G. Cassman","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0002-9775-3468","affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5051973791"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.1569,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.86241365,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"101","issue":null,"first_page":"21","last_page":"46"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10439","display_name":"Climate change impacts on agriculture","score":0.47609999775886536,"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"}},"topics":[{"id":"https://openalex.org/T10439","display_name":"Climate change impacts on agriculture","score":0.47609999775886536,"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/T11404","display_name":"Irrigation Practices and Water Management","score":0.14339999854564667,"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/T10226","display_name":"Land Use and Ecosystem Services","score":0.08940000087022781,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/crop-yield","display_name":"crop yield","score":0.9829999804496765},{"id":"https://openalex.org/keywords/agricultural-land","display_name":"agricultural land","score":0.9300000071525574},{"id":"https://openalex.org/keywords/irrigated-agriculture","display_name":"irrigated agriculture","score":0.9990000128746033},{"id":"https://openalex.org/keywords/agricultural-land-use","display_name":"agricultural land use","score":0.5899999737739563},{"id":"https://openalex.org/keywords/irrigation","display_name":"irrigation","score":0.3089999854564667}],"concepts":[{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.6513641476631165},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.5407291650772095},{"id":"https://openalex.org/C137580998","wikidata":"https://www.wikidata.org/wiki/Q235352","display_name":"Crop","level":2,"score":0.513041615486145},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.4997410774230957},{"id":"https://openalex.org/C88862950","wikidata":"https://www.wikidata.org/wiki/Q11453","display_name":"Irrigation","level":2,"score":0.45851799845695496},{"id":"https://openalex.org/C2989409935","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Crop production","level":3,"score":0.43960779905319214},{"id":"https://openalex.org/C54286561","wikidata":"https://www.wikidata.org/wiki/Q397350","display_name":"Agroforestry","level":1,"score":0.4089985489845276},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.3565753102302551},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.2737874686717987},{"id":"https://openalex.org/C97137747","wikidata":"https://www.wikidata.org/wiki/Q38112","display_name":"Forestry","level":1,"score":0.1262817680835724},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:3104024221","doi":null,"is_oa":false,"landing_page_url":"https://www.cabdirect.org/cabdirect/abstract/20163375122","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/2","score":0.991100013256073,"display_name":"Zero hunger"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W154259281","https://openalex.org/W649531026","https://openalex.org/W1925649791","https://openalex.org/W2063475520","https://openalex.org/W2066131315","https://openalex.org/W2077844229","https://openalex.org/W2114996790","https://openalex.org/W2148170135","https://openalex.org/W2149362589"],"related_works":["https://openalex.org/W7167027084","https://openalex.org/W339108385","https://openalex.org/W3207427231","https://openalex.org/W2580469107","https://openalex.org/W3090016947","https://openalex.org/W962720536","https://openalex.org/W7097789888","https://openalex.org/W2577532922","https://openalex.org/W2910915697","https://openalex.org/W7099472603"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":2}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2020-11-23T00:00:00"}