{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,12]],"date-time":"2026-02-12T16:54:22Z","timestamp":1770915262714,"version":"3.50.1"},"reference-count":102,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,11,20]],"date-time":"2021-11-20T00:00:00Z","timestamp":1637366400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001321","name":"National Research Foundation","doi-asserted-by":"publisher","award":["Not Applicable"],"award-info":[{"award-number":["Not Applicable"]}],"id":[{"id":"10.13039\/501100001321","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJGI"],"abstract":"<jats:p>An Earth observation system (EOS) is essential in monitoring and improving our understanding of how natural and managed agricultural landscapes change over time or respond to climate change and overgrazing. Such changes can be quantified using a pasture model (PM), a critical tool for monitoring changes in pastures driven by the growing population demands and climate change-related challenges and thus ensuring a sustainable food production system. This study used the bibliometric method to assess global scientific research trends in EOS and PM studies from 1979 to 2019. This study analyzed 399 published articles from the Scopus indexed database with the search term \u201cEarth observation systems OR pasture model\u201d. The annual growth rate of 19.76% suggests that the global research on EOS and PM has increased over time during the survey period. The average growth per article is n = 74, average total citations (ATC) = 2949 in the USA, is n = 37, ATC = 488, in China and is n = 22, ATC = 544 in Italy). These results show that the field of the study was inconsistent in terms of ATC per article during the study period. Furthermore, these results show three countries (USA, China, and Italy) ranked as the most productive countries by article publications and the Netherlands had the highest average total citations. This may suggest that these countries have strengthened research development on EOS and PM studies. However, developing counties such as Mexico, Thailand, Sri Lanka, and other African countries had a lower number of publications during the study period. Moreover, the results showed that Earth observation is fundamental in understanding PM dynamics to design targeted interventions and ensure food security. In general, the paper highlights various advances in EOS and PM studies and suggests the direction of future studies.<\/jats:p>","DOI":"10.3390\/ijgi10110793","type":"journal-article","created":{"date-parts":[[2021,11,21]],"date-time":"2021-11-21T20:58:21Z","timestamp":1637528301000},"page":"793","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Earth Observation Systems and Pasture Modeling: A Bibliometric Trend Analysis"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9168-4548","authenticated-orcid":false,"given":"Lwandile","family":"Nduku","sequence":"first","affiliation":[{"name":"Department of Geography & Environmental Science, University of Fort Hare, Alice 5700, South Africa"},{"name":"Geospatial Application, Climate Change & Environmental Sustainability Lab\u2014GACCES, University of Fort Hare, Alice 5700, South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7593-9096","authenticated-orcid":false,"given":"Ahmed Mukalazi","family":"Kalumba","sequence":"additional","affiliation":[{"name":"Department of Geography & Environmental Science, University of Fort Hare, Alice 5700, South Africa"},{"name":"Geospatial Application, Climate Change & Environmental Sustainability Lab\u2014GACCES, University of Fort Hare, Alice 5700, South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1089-5528","authenticated-orcid":false,"given":"Cilence","family":"Munghemezulu","sequence":"additional","affiliation":[{"name":"Geoinformation Science Division, Agricultural Research Council, Natural Resources and Engineering, Pretoria 0001, South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0267-7405","authenticated-orcid":false,"given":"Zinhle","family":"Mashaba-Munghemezulu","sequence":"additional","affiliation":[{"name":"Geoinformation Science Division, Agricultural Research Council, Natural Resources and Engineering, Pretoria 0001, South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5784-033X","authenticated-orcid":false,"given":"George Johannes","family":"Chirima","sequence":"additional","affiliation":[{"name":"Geoinformation Science Division, Agricultural Research Council, Natural Resources and Engineering, Pretoria 0001, South Africa"},{"name":"Department of Geography, Geoinformatics & Meteorology, University of Pretoria, Pretoria 0001, South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7965-2009","authenticated-orcid":false,"given":"Gbenga Abayomi","family":"Afuye","sequence":"additional","affiliation":[{"name":"Department of Geography & Environmental Science, University of Fort Hare, Alice 5700, South Africa"},{"name":"Geospatial Application, Climate Change & Environmental Sustainability Lab\u2014GACCES, University of Fort Hare, Alice 5700, South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9274-2145","authenticated-orcid":false,"given":"Emmanuel Tolulope","family":"Busayo","sequence":"additional","affiliation":[{"name":"Department of Geography & Environmental Science, University of Fort Hare, Alice 5700, South Africa"},{"name":"Geospatial Application, Climate Change & Environmental Sustainability Lab\u2014GACCES, University of Fort Hare, Alice 5700, South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,11,20]]},"reference":[{"key":"ref_1","unstructured":"Latham, J., Cumani, R., Rosati, I., and Bloise, M. 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