Johan van Rooyen

About

Johan van Rooyen is a scholar working on General Agricultural and Biological Sciences, Soil Science and Strategy and Management. According to data from OpenAlex, Johan van Rooyen has authored 33 papers receiving a total of 205 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in General Agricultural and Biological Sciences, 8 papers in Soil Science and 4 papers in Strategy and Management. Recurrent topics in Johan van Rooyen’s work include Agricultural Innovations and Practices (9 papers), Land Rights and Reforms (7 papers) and Agricultural Economics and Policy (5 papers). Johan van Rooyen is often cited by papers focused on Agricultural Innovations and Practices (9 papers), Land Rights and Reforms (7 papers) and Agricultural Economics and Policy (5 papers). Johan van Rooyen collaborates with scholars based in South Africa, United States and Italy. Johan van Rooyen's co-authors include Luc D’Haese, Nick Vink, Marijke D’Haese, Charles Machethe, Ellen Van Damme, Johann F. Kirsten, Edward Mabaya, Johan van Zÿl, Jef L Leroy and Guido Van Huylenbroeck and has published in prestigious journals such as World Development, Food Policy and Development Southern Africa.

In The Last Decade

Co-authorship network of co-authors of Johan van Rooyen i

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Fields of papers citing papers by Johan van Rooyen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Johan van Rooyen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Johan van Rooyen. The network helps show where Johan van Rooyen may publish in the future.

Countries citing papers authored by Johan van Rooyen

Since Specialization

Citations

This map shows the geographic impact of Johan van Rooyen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Johan van Rooyen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Johan van Rooyen more than expected).

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar’s output or impact.

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