Johan van Tol

1.1k total citations
78 papers, 769 citations indexed

About

Johan van Tol is a scholar working on Soil Science, Water Science and Technology and Environmental Engineering. According to data from OpenAlex, Johan van Tol has authored 78 papers receiving a total of 769 indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Soil Science, 30 papers in Water Science and Technology and 23 papers in Environmental Engineering. Recurrent topics in Johan van Tol's work include Soil erosion and sediment transport (32 papers), Hydrology and Watershed Management Studies (27 papers) and Soil Carbon and Nitrogen Dynamics (18 papers). Johan van Tol is often cited by papers focused on Soil erosion and sediment transport (32 papers), Hydrology and Watershed Management Studies (27 papers) and Soil Carbon and Nitrogen Dynamics (18 papers). Johan van Tol collaborates with scholars based in South Africa, United States and Denmark. Johan van Tol's co-authors include Cosmas Parwada, George van Zijl, P. A.L. le Roux, Simon Lorentz, M. Hensley, C. C. du Preez, Elmarie Kotzé, Alen Manyevere, Pieter Le Roux and Catherine E. Clarke and has published in prestigious journals such as SHILAP Revista de lepidopterología, Water Research and Plant and Soil.

In The Last Decade

Johan van Tol

73 papers receiving 733 citations

Peers

Johan van Tol
Jiangbo Qiao China
Shengdong Cheng China
Idowu Ezekiel Olorunfemi Nigeria
Johnson Toyin Fasinmirin Nigeria
Óscar Seguel Chile
Ricardo Santos Silva Amorim Brazil
Xiao Bai China
M. Lalitha India
Stéphane Follain France
Gustavo Souza Valladares Brazil
Jiangbo Qiao China
Johan van Tol
Citations per year, relative to Johan van Tol Johan van Tol (= 1×) peers Jiangbo Qiao

Countries citing papers authored by Johan van Tol

Since Specialization
Citations

This map shows the geographic impact of Johan van Tol'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 Tol 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 Tol more than expected).

Fields of papers citing papers by Johan van Tol

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Johan van Tol. 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 Tol. The network helps show where Johan van Tol may publish in the future.

Co-authorship network of co-authors of Johan van Tol

This figure shows the co-authorship network connecting the top 25 collaborators of Johan van Tol. A scholar is included among the top collaborators of Johan van Tol based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Johan van Tol. Johan van Tol is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Hilmers, Torben, C. J. Geldenhuys, Johan van Tol, et al.. (2025). Drivers of forest structure and biomass along a climatic gradient in the Soutpansberg, South Africa. Trees Forests and People. 21. 100945–100945. 1 indexed citations
2.
Hilmers, Torben, C. J. Geldenhuys, Johan van Tol, et al.. (2025). Drivers of forest structure and biomass along a climatic gradient in the Soutpansberg, South Africa, Trees, Forests and People, Volume 21, September 2025, 100945. Trees Forests and People. 22. 101004–101004.
3.
Laekemariam, Fanuel, et al.. (2025). Modeling soil erosion for sustainable landscape management using RUSLE in the landscapes of Abaya-Chamo Sub-Basin, Ethiopia. Modeling Earth Systems and Environment. 11(3). 4 indexed citations
4.
Tol, Johan van, et al.. (2025). Environmental Factors Influencing Dissolved Organic Carbon Concentrations in Afromontane Catchments. International Journal of Environmental Research. 19(3). 3 indexed citations
5.
Strydom, Tercia, Izak P. J. Smit, & Johan van Tol. (2024). The effect of time since last fire occurrence on selected soil hydrological properties in a South African savanna. Plant and Soil. 517(1). 41–53.
6.
Strydom, Tercia, Izak P. J. Smit, & Johan van Tol. (2024). Short and long-term fire effects on soil C and N in an African savanna. Geoderma Regional. 37. e00802–e00802. 6 indexed citations
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Tol, Johan van, et al.. (2023). Digitally mapping soil carbon of the uThukela headwater catchment in the Maloti-Drakensberg, a remote Afromontane mountain region. South African Geographical Journal. 106(4). 498–517.
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Tol, Johan van, et al.. (2023). Africa's First Alpine and Transboundary Long-Term Socioecological Research Platform. Mountain Research and Development. 43(3).
11.
Tol, Johan van, et al.. (2022). Treatment of faecal sludge and sewage effluent by pinewood biochar to reduce wastewater bacteria and inorganic contaminants leaching. Water Research. 221. 118775–118775. 17 indexed citations
12.
Bouma, J., Antonello Bonfante, Angelo Basile, et al.. (2022). How can pedology and soil classification contribute towards sustainable development as a data source and information carrier?. Geoderma. 424. 115988–115988. 14 indexed citations
13.
Tol, Johan van, et al.. (2021). Potential Use of Biochar in Pit Latrines as a Faecal Sludge Management Strategy to Reduce Water Resource Contaminations: A Review. Applied Sciences. 11(24). 11772–11772. 9 indexed citations
14.
Riddell, Eddie, et al.. (2020). Groundwater–surface water interactions in an ephemeral savanna catchment, Kruger National Park. Koedoe. 62(2). 10 indexed citations
15.
Ololade, Olusola O., et al.. (2019). Characterizing landfill leachate migration potential of a semi-arid duplex soil. Heliyon. 5(10). e02603–e02603. 7 indexed citations
16.
Tol, Johan van, et al.. (2017). Effect of unguided cattle husbandry on selected soil physical properties in common property regimes in Alice, Eastern Cape Province, South Africa.. Range Management and Agroforestry. 38(2). 176–180. 2 indexed citations
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Zijl, George van, et al.. (2014). Functional digital soil mapping: A case study from Namarroi, Mozambique. Geoderma. 219-220. 155–161. 28 indexed citations
20.
Tol, Johan van, et al.. (2013). Soil depth inferred from electromagnetic induction measurements. African Journal of Agricultural Research. 8(6). 519–524. 3 indexed citations

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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