0000-0002-0222-8119

36599454100

Van, Johan Tol

University of the Free State

Publications

Citations

667

h-index

R-3AD7F-04A7A-HC82L

0000-0002-0222-8119

36599454100

Found

See full statistics

Total publications

Total citations

667

Citations per publication

8.04

Average publications per year

5.19

Average coauthors

3.6

Publications years

2010-2025 (16 years)

h-index

i10-index

m-index

0.94

o-index

g-index

w-index

Metrics description

h-index

A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.

https://www.pnas.org/doi/full/10.1073/pnas.0507655102

i10-index

The number of the author's publications that received at least 10 links each.

https://scholar.googleblog.com/2011/11/google-scholar-citations-open-to-all.html

m-index

The researcher's m-index is numerically equal to the ratio of his h-index to the number of years that have passed since the first publication.

https://harzing.com/publications/white-papers/reflections-on-the-h-index

o-index

The geometric mean of the h-index and the number of citations of the most cited article of the scientist.

https://arxiv.org/abs/1511.01545

g-index

For a given set of articles, sorted in descending order of the number of citations that these articles received, the g-index is the largest number such that the g most cited articles received (in total) at least g² citations.

https://doi.org/10.1007/s11192-006-0144-7

w-index

If w articles of a researcher have at least 10w citations each and other publications are less than 10(w+1) citations, then the researcher's w-index is equal to w.

https://doi.org/10.1002/asi.21276

Top-100

See full statistics

Fields of science

	5 10 15 20 25
Soil Science	Soil Science, 22, 26.51% Soil Science 22 publications, 26.51%
Ecology	Ecology, 16, 19.28% Ecology 16 publications, 19.28%
Water Science and Technology	Water Science and Technology, 14, 16.87% Water Science and Technology 14 publications, 16.87%
Plant Science	Plant Science, 10, 12.05% Plant Science 10 publications, 12.05%
Waste Management and Disposal	Waste Management and Disposal, 9, 10.84% Waste Management and Disposal 9 publications, 10.84%
Agronomy and Crop Science	Agronomy and Crop Science, 8, 9.64% Agronomy and Crop Science 8 publications, 9.64%
Management, Monitoring, Policy and Law	Management, Monitoring, Policy and Law, 8, 9.64% Management, Monitoring, Policy and Law 8 publications, 9.64%
Applied Microbiology and Biotechnology	Applied Microbiology and Biotechnology, 6, 7.23% Applied Microbiology and Biotechnology 6 publications, 7.23%
Ecology, Evolution, Behavior and Systematics	Ecology, Evolution, Behavior and Systematics, 6, 7.23% Ecology, Evolution, Behavior and Systematics 6 publications, 7.23%
Geography, Planning and Development	Geography, Planning and Development, 5, 6.02% Geography, Planning and Development 5 publications, 6.02%
General Earth and Planetary Sciences	General Earth and Planetary Sciences, 4, 4.82% General Earth and Planetary Sciences 4 publications, 4.82%
Environmental Engineering	Environmental Engineering, 3, 3.61% Environmental Engineering 3 publications, 3.61%
Public Health, Environmental and Occupational Health	Public Health, Environmental and Occupational Health, 3, 3.61% Public Health, Environmental and Occupational Health 3 publications, 3.61%
Pollution	Pollution, 3, 3.61% Pollution 3 publications, 3.61%
General Environmental Science	General Environmental Science, 3, 3.61% General Environmental Science 3 publications, 3.61%
Global and Planetary Change	Global and Planetary Change, 3, 3.61% Global and Planetary Change 3 publications, 3.61%
Nature and Landscape Conservation	Nature and Landscape Conservation, 3, 3.61% Nature and Landscape Conservation 3 publications, 3.61%
Computer Science Applications	Computer Science Applications, 2, 2.41% Computer Science Applications 2 publications, 2.41%
Process Chemistry and Technology	Process Chemistry and Technology, 2, 2.41% Process Chemistry and Technology 2 publications, 2.41%
General Materials Science	General Materials Science, 2, 2.41% General Materials Science 2 publications, 2.41%
Instrumentation	Instrumentation, 2, 2.41% Instrumentation 2 publications, 2.41%
General Engineering	General Engineering, 2, 2.41% General Engineering 2 publications, 2.41%
Food Science	Food Science, 2, 2.41% Food Science 2 publications, 2.41%
Environmental Chemistry	Environmental Chemistry, 2, 2.41% Environmental Chemistry 2 publications, 2.41%
Health, Toxicology and Mutagenesis	Health, Toxicology and Mutagenesis, 2, 2.41% Health, Toxicology and Mutagenesis 2 publications, 2.41%
Oceanography	Oceanography, 2, 2.41% Oceanography 2 publications, 2.41%
Earth and Planetary Sciences (miscellaneous)	Earth and Planetary Sciences (miscellaneous), 2, 2.41% Earth and Planetary Sciences (miscellaneous) 2 publications, 2.41%
Earth-Surface Processes	Earth-Surface Processes, 2, 2.41% Earth-Surface Processes 2 publications, 2.41%
Fluid Flow and Transfer Processes	Fluid Flow and Transfer Processes, 2, 2.41% Fluid Flow and Transfer Processes 2 publications, 2.41%
Economics and Econometrics	Economics and Econometrics, 2, 2.41% Economics and Econometrics 2 publications, 2.41%
Materials Chemistry	Materials Chemistry, 1, 1.2% Materials Chemistry 1 publication, 1.2%
General Chemistry	General Chemistry, 1, 1.2% General Chemistry 1 publication, 1.2%
Biochemistry	Biochemistry, 1, 1.2% Biochemistry 1 publication, 1.2%
General Biochemistry, Genetics and Molecular Biology	General Biochemistry, Genetics and Molecular Biology, 1, 1.2% General Biochemistry, Genetics and Molecular Biology 1 publication, 1.2%
General Medicine	General Medicine, 1, 1.2% General Medicine 1 publication, 1.2%
Multidisciplinary	Multidisciplinary, 1, 1.2% Multidisciplinary 1 publication, 1.2%
General Agricultural and Biological Sciences	General Agricultural and Biological Sciences, 1, 1.2% General Agricultural and Biological Sciences 1 publication, 1.2%
Civil and Structural Engineering	Civil and Structural Engineering, 1, 1.2% Civil and Structural Engineering 1 publication, 1.2%
Aquatic Science	Aquatic Science, 1, 1.2% Aquatic Science 1 publication, 1.2%
Development	Development, 1, 1.2% Development 1 publication, 1.2%
Ecological Modeling	Ecological Modeling, 1, 1.2% Ecological Modeling 1 publication, 1.2%

	5 10 15 20 25

Journals

	1 2 3 4 5 6 7 8 9
Water S.A.	Water S.A., 9, 10.84% Water S.A. 9 publications, 10.84%
Geoderma	Geoderma, 7, 8.43% Geoderma 7 publications, 8.43%
South African Journal of Plant and Soil	South African Journal of Plant and Soil, 7, 8.43% South African Journal of Plant and Soil 7 publications, 8.43%
Koedoe	Koedoe, 6, 7.23% Koedoe 6 publications, 7.23%
Vadose Zone Journal	Vadose Zone Journal, 4, 4.82% Vadose Zone Journal 4 publications, 4.82%
Acta Agriculturae Scandinavica - Section B Soil and Plant Science	Acta Agriculturae Scandinavica - Section B Soil and Plant Science, 3, 3.61% Acta Agriculturae Scandinavica - Section B Soil and Plant Science 3 publications, 3.61%
Land	Land, 3, 3.61% Land 3 publications, 3.61%
Agriculture (Switzerland)	Agriculture (Switzerland), 2, 2.41% Agriculture (Switzerland) 2 publications, 2.41%
Journal of Hydrology: Regional Studies	Journal of Hydrology: Regional Studies, 2, 2.41% Journal of Hydrology: Regional Studies 2 publications, 2.41%
Southern African Geographical Journal	Southern African Geographical Journal, 2, 2.41% Southern African Geographical Journal 2 publications, 2.41%
Applied Sciences (Switzerland)	Applied Sciences (Switzerland), 2, 2.41% Applied Sciences (Switzerland) 2 publications, 2.41%
Hydrological Processes	Hydrological Processes, 2, 2.41% Hydrological Processes 2 publications, 2.41%
Environment, Development and Sustainability	Environment, Development and Sustainability, 2, 2.41% Environment, Development and Sustainability 2 publications, 2.41%
Mountain Research and Development	Mountain Research and Development, 2, 2.41% Mountain Research and Development 2 publications, 2.41%
Hydrology	Hydrology, 2, 2.41% Hydrology 2 publications, 2.41%
International Journal of Environmental Research and Public Health	International Journal of Environmental Research and Public Health, 1, 1.2% International Journal of Environmental Research and Public Health 1 publication, 1.2%
South African Journal of Science	South African Journal of Science, 1, 1.2% South African Journal of Science 1 publication, 1.2%
Geoderma Regional	Geoderma Regional, 1, 1.2% Geoderma Regional 1 publication, 1.2%
Air, Soil and Water Research	Air, Soil and Water Research, 1, 1.2% Air, Soil and Water Research 1 publication, 1.2%
Water Science and Technology	Water Science and Technology, 1, 1.2% Water Science and Technology 1 publication, 1.2%
Diversity	Diversity, 1, 1.2% Diversity 1 publication, 1.2%
Agronomy	Agronomy, 1, 1.2% Agronomy 1 publication, 1.2%
Soil Use and Management	Soil Use and Management, 1, 1.2% Soil Use and Management 1 publication, 1.2%
Journal of Mountain Science	Journal of Mountain Science, 1, 1.2% Journal of Mountain Science 1 publication, 1.2%
Water Research	Water Research, 1, 1.2% Water Research 1 publication, 1.2%
Heliyon	Heliyon, 1, 1.2% Heliyon 1 publication, 1.2%
Chemosphere	Chemosphere, 1, 1.2% Chemosphere 1 publication, 1.2%
Remote Sensing	Remote Sensing, 1, 1.2% Remote Sensing 1 publication, 1.2%
Water (Switzerland)	Water (Switzerland), 1, 1.2% Water (Switzerland) 1 publication, 1.2%
European Journal of Soil Science	European Journal of Soil Science, 1, 1.2% European Journal of Soil Science 1 publication, 1.2%
Plant and Soil	Plant and Soil, 1, 1.2% Plant and Soil 1 publication, 1.2%
ENVIRONMENTAL SYSTEMS RESEARCH	ENVIRONMENTAL SYSTEMS RESEARCH, 1, 1.2% ENVIRONMENTAL SYSTEMS RESEARCH 1 publication, 1.2%
Sustainable Environment	Sustainable Environment, 1, 1.2% Sustainable Environment 1 publication, 1.2%
Grasses	Grasses, 1, 1.2% Grasses 1 publication, 1.2%
Agrotechnology	Agrotechnology, 1, 1.2% Agrotechnology 1 publication, 1.2%
South African Journal of Agricultural Extension	South African Journal of Agricultural Extension, 1, 1.2% South African Journal of Agricultural Extension 1 publication, 1.2%

	1 2 3 4 5 6 7 8 9

Citing journals

	10 20 30 40 50 60
Geoderma	Geoderma, 60, 9% Geoderma 60 citations, 9%
South African Journal of Plant and Soil	South African Journal of Plant and Soil, 37, 5.55% South African Journal of Plant and Soil 37 citations, 5.55%
Journal not defined	Journal not defined, 36, 5.4% Journal not defined 36 citations, 5.4%
Koedoe	Koedoe, 21, 3.15% Koedoe 21 citations, 3.15%
Water (Switzerland)	Water (Switzerland), 21, 3.15% Water (Switzerland) 21 citations, 3.15%
Vadose Zone Journal	Vadose Zone Journal, 17, 2.55% Vadose Zone Journal 17 citations, 2.55%
Hydrological Processes	Hydrological Processes, 17, 2.55% Hydrological Processes 17 citations, 2.55%
Geoderma Regional	Geoderma Regional, 14, 2.1% Geoderma Regional 14 citations, 2.1%
Science of the Total Environment	Science of the Total Environment, 12, 1.8% Science of the Total Environment 12 citations, 1.8%
Journal of Hydrology: Regional Studies	Journal of Hydrology: Regional Studies, 12, 1.8% Journal of Hydrology: Regional Studies 12 citations, 1.8%
Agriculture (Switzerland)	Agriculture (Switzerland), 10, 1.5% Agriculture (Switzerland) 10 citations, 1.5%
Catena	Catena, 10, 1.5% Catena 10 citations, 1.5%
Hydrology	Hydrology, 10, 1.5% Hydrology 10 citations, 1.5%
Land	Land, 9, 1.35% Land 9 citations, 1.35%
Sustainability	Sustainability, 9, 1.35% Sustainability 9 citations, 1.35%
International Journal of Environmental Research and Public Health	International Journal of Environmental Research and Public Health, 8, 1.2% International Journal of Environmental Research and Public Health 8 citations, 1.2%
Soil and Tillage Research	Soil and Tillage Research, 8, 1.2% Soil and Tillage Research 8 citations, 1.2%
Southern African Geographical Journal	Southern African Geographical Journal, 8, 1.2% Southern African Geographical Journal 8 citations, 1.2%
Applied Sciences (Switzerland)	Applied Sciences (Switzerland), 8, 1.2% Applied Sciences (Switzerland) 8 citations, 1.2%
Remote Sensing	Remote Sensing, 8, 1.2% Remote Sensing 8 citations, 1.2%
European Journal of Soil Science	European Journal of Soil Science, 8, 1.2% European Journal of Soil Science 8 citations, 1.2%
Journal of Hydrology	Journal of Hydrology, 7, 1.05% Journal of Hydrology 7 citations, 1.05%
Agronomy	Agronomy, 6, 0.9% Agronomy 6 citations, 0.9%
Physics and Chemistry of the Earth	Physics and Chemistry of the Earth, 6, 0.9% Physics and Chemistry of the Earth 6 citations, 0.9%
Environmental Monitoring and Assessment	Environmental Monitoring and Assessment, 6, 0.9% Environmental Monitoring and Assessment 6 citations, 0.9%
Plant and Soil	Plant and Soil, 6, 0.9% Plant and Soil 6 citations, 0.9%
Soil Systems	Soil Systems, 6, 0.9% Soil Systems 6 citations, 0.9%
Emerging Sustainable Aquaculture Innovations in Africa	Emerging Sustainable Aquaculture Innovations in Africa, 6, 0.9% Emerging Sustainable Aquaculture Innovations in Africa 6 citations, 0.9%
Frontiers in Environmental Science	Frontiers in Environmental Science, 5, 0.75% Frontiers in Environmental Science 5 citations, 0.75%
Journal of Mountain Science	Journal of Mountain Science, 4, 0.6% Journal of Mountain Science 4 citations, 0.6%
Earth Surface Processes and Landforms	Earth Surface Processes and Landforms, 4, 0.6% Earth Surface Processes and Landforms 4 citations, 0.6%
Water Research	Water Research, 4, 0.6% Water Research 4 citations, 0.6%
Environment, Development and Sustainability	Environment, Development and Sustainability, 4, 0.6% Environment, Development and Sustainability 4 citations, 0.6%
Journal of Hazardous Materials	Journal of Hazardous Materials, 4, 0.6% Journal of Hazardous Materials 4 citations, 0.6%
Frontiers in Sustainable Food Systems	Frontiers in Sustainable Food Systems, 3, 0.45% Frontiers in Sustainable Food Systems 3 citations, 0.45%
Agricultural Water Management	Agricultural Water Management, 3, 0.45% Agricultural Water Management 3 citations, 0.45%
Acta Agriculturae Scandinavica - Section B Soil and Plant Science	Acta Agriculturae Scandinavica - Section B Soil and Plant Science, 3, 0.45% Acta Agriculturae Scandinavica - Section B Soil and Plant Science 3 citations, 0.45%
Hydrological Sciences Journal	Hydrological Sciences Journal, 3, 0.45% Hydrological Sciences Journal 3 citations, 0.45%
Lecture Notes in Civil Engineering	Lecture Notes in Civil Engineering, 3, 0.45% Lecture Notes in Civil Engineering 3 citations, 0.45%
Diversity	Diversity, 3, 0.45% Diversity 3 citations, 0.45%
Soil Use and Management	Soil Use and Management, 3, 0.45% Soil Use and Management 3 citations, 0.45%
Journal of Soils and Sediments	Journal of Soils and Sediments, 3, 0.45% Journal of Soils and Sediments 3 citations, 0.45%
Groundwater for Sustainable Development	Groundwater for Sustainable Development, 3, 0.45% Groundwater for Sustainable Development 3 citations, 0.45%
Applied Soil Ecology	Applied Soil Ecology, 3, 0.45% Applied Soil Ecology 3 citations, 0.45%
International Soil and Water Conservation Research	International Soil and Water Conservation Research, 3, 0.45% International Soil and Water Conservation Research 3 citations, 0.45%
The Scientific World Journal	The Scientific World Journal, 3, 0.45% The Scientific World Journal 3 citations, 0.45%
Journal of Environmental Management	Journal of Environmental Management, 3, 0.45% Journal of Environmental Management 3 citations, 0.45%
Land Degradation and Development	Land Degradation and Development, 3, 0.45% Land Degradation and Development 3 citations, 0.45%
Advances in Agronomy	Advances in Agronomy, 3, 0.45% Advances in Agronomy 3 citations, 0.45%
Heliyon	Heliyon, 3, 0.45% Heliyon 3 citations, 0.45%
Chemosphere	Chemosphere, 3, 0.45% Chemosphere 3 citations, 0.45%
Soil Research	Soil Research, 3, 0.45% Soil Research 3 citations, 0.45%
Earth-Science Reviews	Earth-Science Reviews, 3, 0.45% Earth-Science Reviews 3 citations, 0.45%
International Journal of Environmental Research	International Journal of Environmental Research, 3, 0.45% International Journal of Environmental Research 3 citations, 0.45%
Environmental Science and Pollution Research	Environmental Science and Pollution Research, 3, 0.45% Environmental Science and Pollution Research 3 citations, 0.45%
Sustainable Environment	Sustainable Environment, 3, 0.45% Sustainable Environment 3 citations, 0.45%
Farming System	Farming System, 3, 0.45% Farming System 3 citations, 0.45%
Springer Environmental Science and Engineering	Springer Environmental Science and Engineering, 3, 0.45% Springer Environmental Science and Engineering 3 citations, 0.45%
Biomes of the Southern Hemisphere	Biomes of the Southern Hemisphere, 3, 0.45% Biomes of the Southern Hemisphere 3 citations, 0.45%
Journal of Cleaner Production	Journal of Cleaner Production, 2, 0.3% Journal of Cleaner Production 2 citations, 0.3%
Frontiers in Plant Science	Frontiers in Plant Science, 2, 0.3% Frontiers in Plant Science 2 citations, 0.3%
PeerJ	PeerJ, 2, 0.3% PeerJ 2 citations, 0.3%
Journal of Applied Ecology	Journal of Applied Ecology, 2, 0.3% Journal of Applied Ecology 2 citations, 0.3%
Environmental Research	Environmental Research, 2, 0.3% Environmental Research 2 citations, 0.3%
Environmental Earth Sciences	Environmental Earth Sciences, 2, 0.3% Environmental Earth Sciences 2 citations, 0.3%
IOP Conference Series: Earth and Environmental Science	IOP Conference Series: Earth and Environmental Science, 2, 0.3% IOP Conference Series: Earth and Environmental Science 2 citations, 0.3%
Ecology and Evolution	Ecology and Evolution, 2, 0.3% Ecology and Evolution 2 citations, 0.3%
Environments - MDPI	Environments - MDPI, 2, 0.3% Environments - MDPI 2 citations, 0.3%
Ecosystem Services	Ecosystem Services, 2, 0.3% Ecosystem Services 2 citations, 0.3%
ISPRS International Journal of Geo-Information	ISPRS International Journal of Geo-Information, 2, 0.3% ISPRS International Journal of Geo-Information 2 citations, 0.3%
Ecological Indicators	Ecological Indicators, 2, 0.3% Ecological Indicators 2 citations, 0.3%
Pedosphere	Pedosphere, 2, 0.3% Pedosphere 2 citations, 0.3%
Critical Reviews in Analytical Chemistry	Critical Reviews in Analytical Chemistry, 2, 0.3% Critical Reviews in Analytical Chemistry 2 citations, 0.3%
Progress in Physical Geography	Progress in Physical Geography, 2, 0.3% Progress in Physical Geography 2 citations, 0.3%
Water Science and Technology: Water Supply	Water Science and Technology: Water Supply, 2, 0.3% Water Science and Technology: Water Supply 2 citations, 0.3%
Scientific African	Scientific African, 2, 0.3% Scientific African 2 citations, 0.3%
Arid Land Research and Management	Arid Land Research and Management, 2, 0.3% Arid Land Research and Management 2 citations, 0.3%
Geomorphology	Geomorphology, 2, 0.3% Geomorphology 2 citations, 0.3%
Forest Ecology and Management	Forest Ecology and Management, 2, 0.3% Forest Ecology and Management 2 citations, 0.3%
PLoS ONE	PLoS ONE, 2, 0.3% PLoS ONE 2 citations, 0.3%
Cogent Food & Agriculture	Cogent Food & Agriculture, 2, 0.3% Cogent Food & Agriculture 2 citations, 0.3%
Applied Water Science	Applied Water Science, 2, 0.3% Applied Water Science 2 citations, 0.3%
ENVIRONMENTAL SYSTEMS RESEARCH	ENVIRONMENTAL SYSTEMS RESEARCH, 2, 0.3% ENVIRONMENTAL SYSTEMS RESEARCH 2 citations, 0.3%
Journal of Biological Sciences	Journal of Biological Sciences, 2, 0.3% Journal of Biological Sciences 2 citations, 0.3%
Sustainable Water Resources Management	Sustainable Water Resources Management, 2, 0.3% Sustainable Water Resources Management 2 citations, 0.3%
World	World, 2, 0.3% World 2 citations, 0.3%
Environmental and Sustainability Indicators	Environmental and Sustainability Indicators, 2, 0.3% Environmental and Sustainability Indicators 2 citations, 0.3%
Advances in Environmental Engineering and Green Technologies	Advances in Environmental Engineering and Green Technologies, 2, 0.3% Advances in Environmental Engineering and Green Technologies 2 citations, 0.3%
Journal of Environmental Chemical Engineering	Journal of Environmental Chemical Engineering, 1, 0.15% Journal of Environmental Chemical Engineering 1 citation, 0.15%
Surfaces and Interfaces	Surfaces and Interfaces, 1, 0.15% Surfaces and Interfaces 1 citation, 0.15%
Measurement: Journal of the International Measurement Confederation	Measurement: Journal of the International Measurement Confederation, 1, 0.15% Measurement: Journal of the International Measurement Confederation 1 citation, 0.15%
Journal of Ethnobiology and Ethnomedicine	Journal of Ethnobiology and Ethnomedicine, 1, 0.15% Journal of Ethnobiology and Ethnomedicine 1 citation, 0.15%
Ecosphere	Ecosphere, 1, 0.15% Ecosphere 1 citation, 0.15%
Frontiers of Biogeography	Frontiers of Biogeography, 1, 0.15% Frontiers of Biogeography 1 citation, 0.15%
International Journal of Environmental Analytical Chemistry	International Journal of Environmental Analytical Chemistry, 1, 0.15% International Journal of Environmental Analytical Chemistry 1 citation, 0.15%
Nutrient Cycling in Agroecosystems	Nutrient Cycling in Agroecosystems, 1, 0.15% Nutrient Cycling in Agroecosystems 1 citation, 0.15%
Climate Research	Climate Research, 1, 0.15% Climate Research 1 citation, 0.15%
South African Journal of Science	South African Journal of Science, 1, 0.15% South African Journal of Science 1 citation, 0.15%
Revista de Nutricao	Revista de Nutricao, 1, 0.15% Revista de Nutricao 1 citation, 0.15%
Annals of GIS	Annals of GIS, 1, 0.15% Annals of GIS 1 citation, 0.15%

	10 20 30 40 50 60

Publishers

	2 4 6 8 10 12 14 16
MDPI	MDPI, 15, 18.07% MDPI 15 publications, 18.07%
Elsevier	Elsevier, 13, 15.66% Elsevier 13 publications, 15.66%
Taylor & Francis	Taylor & Francis, 13, 15.66% Taylor & Francis 13 publications, 15.66%
Water Research Commission	Water Research Commission, 9, 10.84% Water Research Commission 9 publications, 10.84%
Springer Nature	Springer Nature, 7, 8.43% Springer Nature 7 publications, 8.43%
AOSIS	AOSIS, 6, 7.23% AOSIS 6 publications, 7.23%
Wiley	Wiley, 4, 4.82% Wiley 4 publications, 4.82%
Soil Science Society of America	Soil Science Society of America, 4, 4.82% Soil Science Society of America 4 publications, 4.82%
SAGE	SAGE, 1, 1.2% SAGE 1 publication, 1.2%
South African Assn. For The Advancement Of Science	South African Assn. For The Advancement Of Science, 1, 1.2% South African Assn. For The Advancement Of Science 1 publication, 1.2%
IWA Publishing	IWA Publishing, 1, 1.2% IWA Publishing 1 publication, 1.2%
OMICS Publishing Group	OMICS Publishing Group, 1, 1.2% OMICS Publishing Group 1 publication, 1.2%
Academy of Science of South Africa	Academy of Science of South Africa, 1, 1.2% Academy of Science of South Africa 1 publication, 1.2%
	2 4 6 8 10 12 14 16

Organizations from articles

	10 20 30 40 50 60 70
University of the Free State	University of the Free State, 62, 74.7% University of the Free State 62 publications, 74.7%
University of Fort Hare	University of Fort Hare, 23, 27.71% University of Fort Hare 23 publications, 27.71%
Organization not defined	Organization not defined, 19, 22.89% Organization not defined 19 publications, 22.89%
North-West University	North-West University, 11, 13.25% North-West University 11 publications, 13.25%
University of KwaZulu-Natal	University of KwaZulu-Natal, 8, 9.64% University of KwaZulu-Natal 8 publications, 9.64%
Technische Universität Dresden	Technische Universität Dresden, 3, 3.61% Technische Universität Dresden 3 publications, 3.61%
Stellenbosch University	Stellenbosch University, 3, 3.61% Stellenbosch University 3 publications, 3.61%
Rhodes University	Rhodes University, 3, 3.61% Rhodes University 3 publications, 3.61%
Agricultural Research Council of South Africa	Agricultural Research Council of South Africa, 2, 2.41% Agricultural Research Council of South Africa 2 publications, 2.41%
King Abdulaziz University	King Abdulaziz University, 1, 1.2% King Abdulaziz University 1 publication, 1.2%
Tamil Nadu Agricultural University	Tamil Nadu Agricultural University, 1, 1.2% Tamil Nadu Agricultural University 1 publication, 1.2%
Aarhus University	Aarhus University, 1, 1.2% Aarhus University 1 publication, 1.2%
Chang'an University	Chang'an University, 1, 1.2% Chang'an University 1 publication, 1.2%
University of the Witwatersrand	University of the Witwatersrand, 1, 1.2% University of the Witwatersrand 1 publication, 1.2%
University of the Western Cape	University of the Western Cape, 1, 1.2% University of the Western Cape 1 publication, 1.2%
University of Venda	University of Venda, 1, 1.2% University of Venda 1 publication, 1.2%
Nelson Mandela University	Nelson Mandela University, 1, 1.2% Nelson Mandela University 1 publication, 1.2%
University of Zululand	University of Zululand, 1, 1.2% University of Zululand 1 publication, 1.2%
North Carolina State University	North Carolina State University, 1, 1.2% North Carolina State University 1 publication, 1.2%
University of California, Riverside	University of California, Riverside, 1, 1.2% University of California, Riverside 1 publication, 1.2%
Wageningen University and Research Centre	Wageningen University and Research Centre, 1, 1.2% Wageningen University and Research Centre 1 publication, 1.2%
Université Bourgogne Franche-Comté	Université Bourgogne Franche-Comté, 1, 1.2% Université Bourgogne Franche-Comté 1 publication, 1.2%
Institute for Soil, Climate and Water	Institute for Soil, Climate and Water, 1, 1.2% Institute for Soil, Climate and Water 1 publication, 1.2%
University of São Paulo	University of São Paulo, 1, 1.2% University of São Paulo 1 publication, 1.2%
University of Zambia	University of Zambia, 1, 1.2% University of Zambia 1 publication, 1.2%
Eduardo Mondlane University	Eduardo Mondlane University, 1, 1.2% Eduardo Mondlane University 1 publication, 1.2%
	10 20 30 40 50 60 70

Countries from articles

	10 20 30 40 50 60 70
South Africa	South Africa, 70, 84.34% South Africa 70 publications, 84.34%
Country not defined	Country not defined, 18, 21.69% Country not defined 18 publications, 21.69%
USA	USA, 8, 9.64% USA 8 publications, 9.64%
Denmark	Denmark, 4, 4.82% Denmark 4 publications, 4.82%
Germany	Germany, 3, 3.61% Germany 3 publications, 3.61%
Mozambique	Mozambique, 3, 3.61% Mozambique 3 publications, 3.61%
Brazil	Brazil, 2, 2.41% Brazil 2 publications, 2.41%
Zambia	Zambia, 2, 2.41% Zambia 2 publications, 2.41%
France	France, 1, 1.2% France 1 publication, 1.2%
China	China, 1, 1.2% China 1 publication, 1.2%
Zimbabwe	Zimbabwe, 1, 1.2% Zimbabwe 1 publication, 1.2%
India	India, 1, 1.2% India 1 publication, 1.2%
Italy	Italy, 1, 1.2% Italy 1 publication, 1.2%
Netherlands	Netherlands, 1, 1.2% Netherlands 1 publication, 1.2%
Saudi Arabia	Saudi Arabia, 1, 1.2% Saudi Arabia 1 publication, 1.2%
	10 20 30 40 50 60 70

Citing organizations

	20 40 60 80 100 120 140 160
Organization not defined	Organization not defined, 150, 22.49% Organization not defined 150 citations, 22.49%
University of the Free State	University of the Free State, 56, 8.4% University of the Free State 56 citations, 8.4%
University of KwaZulu-Natal	University of KwaZulu-Natal, 20, 3% University of KwaZulu-Natal 20 citations, 3%
University of Fort Hare	University of Fort Hare, 18, 2.7% University of Fort Hare 18 citations, 2.7%
Stellenbosch University	Stellenbosch University, 17, 2.55% Stellenbosch University 17 citations, 2.55%
North-West University	North-West University, 15, 2.25% North-West University 15 citations, 2.25%
Rhodes University	Rhodes University, 15, 2.25% Rhodes University 15 citations, 2.25%
University of South Africa	University of South Africa, 14, 2.1% University of South Africa 14 citations, 2.1%
Wageningen University and Research Centre	Wageningen University and Research Centre, 11, 1.65% Wageningen University and Research Centre 11 citations, 1.65%
University of Chinese Academy of Sciences	University of Chinese Academy of Sciences, 8, 1.2% University of Chinese Academy of Sciences 8 citations, 1.2%
Huazhong Agricultural University	Huazhong Agricultural University, 6, 0.9% Huazhong Agricultural University 6 citations, 0.9%
Northwest University	Northwest University, 6, 0.9% Northwest University 6 citations, 0.9%
University of the Witwatersrand	University of the Witwatersrand, 6, 0.9% University of the Witwatersrand 6 citations, 0.9%
University of Pretoria	University of Pretoria, 6, 0.9% University of Pretoria 6 citations, 0.9%
University of the Western Cape	University of the Western Cape, 6, 0.9% University of the Western Cape 6 citations, 0.9%
Agricultural Research Council of South Africa	Agricultural Research Council of South Africa, 6, 0.9% Agricultural Research Council of South Africa 6 citations, 0.9%
Northwest A&F University	Northwest A&F University, 6, 0.9% Northwest A&F University 6 citations, 0.9%
University of Tehran	University of Tehran, 5, 0.75% University of Tehran 5 citations, 0.75%
University of Sydney	University of Sydney, 5, 0.75% University of Sydney 5 citations, 0.75%
Pennsylvania State University	Pennsylvania State University, 5, 0.75% Pennsylvania State University 5 citations, 0.75%
South African National Biodiversity Institute	South African National Biodiversity Institute, 4, 0.6% South African National Biodiversity Institute 4 citations, 0.6%
University of Limpopo	University of Limpopo, 4, 0.6% University of Limpopo 4 citations, 0.6%
University of Arizona	University of Arizona, 4, 0.6% University of Arizona 4 citations, 0.6%
Leibniz Centre for Agricultural Landscape Research	Leibniz Centre for Agricultural Landscape Research, 4, 0.6% Leibniz Centre for Agricultural Landscape Research 4 citations, 0.6%
James Hutton Institute	James Hutton Institute, 4, 0.6% James Hutton Institute 4 citations, 0.6%
Zimbabwe Open University	Zimbabwe Open University, 4, 0.6% Zimbabwe Open University 4 citations, 0.6%
ETH Zurich	ETH Zurich, 3, 0.45% ETH Zurich 3 citations, 0.45%
Swedish University of Agricultural Sciences	Swedish University of Agricultural Sciences, 3, 0.45% Swedish University of Agricultural Sciences 3 citations, 0.45%
Technische Universität Dresden	Technische Universität Dresden, 3, 0.45% Technische Universität Dresden 3 citations, 0.45%
University of Basel	University of Basel, 3, 0.45% University of Basel 3 citations, 0.45%
Sorbonne University	Sorbonne University, 3, 0.45% Sorbonne University 3 citations, 0.45%
Cornell University	Cornell University, 3, 0.45% Cornell University 3 citations, 0.45%
University of Venda	University of Venda, 3, 0.45% University of Venda 3 citations, 0.45%
Nelson Mandela University	Nelson Mandela University, 3, 0.45% Nelson Mandela University 3 citations, 0.45%
University of Texas at Austin	University of Texas at Austin, 3, 0.45% University of Texas at Austin 3 citations, 0.45%
Gansu Agricultural University	Gansu Agricultural University, 3, 0.45% Gansu Agricultural University 3 citations, 0.45%
University of Wisconsin–Madison	University of Wisconsin–Madison, 3, 0.45% University of Wisconsin–Madison 3 citations, 0.45%
University of Guelph	University of Guelph, 3, 0.45% University of Guelph 3 citations, 0.45%
Institute of Earth Environment, Chinese Academy of Sciences	Institute of Earth Environment, Chinese Academy of Sciences, 3, 0.45% Institute of Earth Environment, Chinese Academy of Sciences 3 citations, 0.45%
Bahir Dar University	Bahir Dar University, 3, 0.45% Bahir Dar University 3 citations, 0.45%
Lomonosov Moscow State University	Lomonosov Moscow State University, 2, 0.3% Lomonosov Moscow State University 2 citations, 0.3%
Saint Petersburg State University	Saint Petersburg State University, 2, 0.3% Saint Petersburg State University 2 citations, 0.3%
Dokuchaev Soil Science Institute	Dokuchaev Soil Science Institute, 2, 0.3% Dokuchaev Soil Science Institute 2 citations, 0.3%
Azerbaijan State Oil and Industry University	Azerbaijan State Oil and Industry University, 2, 0.3% Azerbaijan State Oil and Industry University 2 citations, 0.3%
Azerbaijan University of Architecture and Construction	Azerbaijan University of Architecture and Construction, 2, 0.3% Azerbaijan University of Architecture and Construction 2 citations, 0.3%
King Abdulaziz University	King Abdulaziz University, 2, 0.3% King Abdulaziz University 2 citations, 0.3%
Middle East Technical University	Middle East Technical University, 2, 0.3% Middle East Technical University 2 citations, 0.3%
Indian Institute of Science	Indian Institute of Science, 2, 0.3% Indian Institute of Science 2 citations, 0.3%
Birla Institute of Technology and Science, Pilani	Birla Institute of Technology and Science, Pilani, 2, 0.3% Birla Institute of Technology and Science, Pilani 2 citations, 0.3%
Indian Institute of Technology Roorkee	Indian Institute of Technology Roorkee, 2, 0.3% Indian Institute of Technology Roorkee 2 citations, 0.3%
Beijing Normal University	Beijing Normal University, 2, 0.3% Beijing Normal University 2 citations, 0.3%
Duy Tan University	Duy Tan University, 2, 0.3% Duy Tan University 2 citations, 0.3%
University of Malaya	University of Malaya, 2, 0.3% University of Malaya 2 citations, 0.3%
University of Lisbon	University of Lisbon, 2, 0.3% University of Lisbon 2 citations, 0.3%
Nanjing Normal University	Nanjing Normal University, 2, 0.3% Nanjing Normal University 2 citations, 0.3%
Nanjing University	Nanjing University, 2, 0.3% Nanjing University 2 citations, 0.3%
China University of Geosciences (Beijing)	China University of Geosciences (Beijing), 2, 0.3% China University of Geosciences (Beijing) 2 citations, 0.3%
China Agricultural University	China Agricultural University, 2, 0.3% China Agricultural University 2 citations, 0.3%
University of New South Wales	University of New South Wales, 2, 0.3% University of New South Wales 2 citations, 0.3%
Delft University of Technology	Delft University of Technology, 2, 0.3% Delft University of Technology 2 citations, 0.3%
Université Catholique de Louvain	Université Catholique de Louvain, 2, 0.3% Université Catholique de Louvain 2 citations, 0.3%
Aarhus University	Aarhus University, 2, 0.3% Aarhus University 2 citations, 0.3%
Hohai University	Hohai University, 2, 0.3% Hohai University 2 citations, 0.3%
University of Nottingham	University of Nottingham, 2, 0.3% University of Nottingham 2 citations, 0.3%
Chengdu University of Technology	Chengdu University of Technology, 2, 0.3% Chengdu University of Technology 2 citations, 0.3%
University of Pavia	University of Pavia, 2, 0.3% University of Pavia 2 citations, 0.3%
Cairo University	Cairo University, 2, 0.3% Cairo University 2 citations, 0.3%
University of Modena and Reggio Emilia	University of Modena and Reggio Emilia, 2, 0.3% University of Modena and Reggio Emilia 2 citations, 0.3%
Chang'an University	Chang'an University, 2, 0.3% Chang'an University 2 citations, 0.3%
University of Camerino	University of Camerino, 2, 0.3% University of Camerino 2 citations, 0.3%
Water Research Institute	Water Research Institute, 2, 0.3% Water Research Institute 2 citations, 0.3%
Agricultural Research Council	Agricultural Research Council, 2, 0.3% Agricultural Research Council 2 citations, 0.3%
Manaaki Whenua – Landcare Research	Manaaki Whenua – Landcare Research, 2, 0.3% Manaaki Whenua – Landcare Research 2 citations, 0.3%
Commonwealth Scientific and Industrial Research Organization	Commonwealth Scientific and Industrial Research Organization, 2, 0.3% Commonwealth Scientific and Industrial Research Organization 2 citations, 0.3%
Murdoch University	Murdoch University, 2, 0.3% Murdoch University 2 citations, 0.3%
Federation University	Federation University, 2, 0.3% Federation University 2 citations, 0.3%
University of Cape Town	University of Cape Town, 2, 0.3% University of Cape Town 2 citations, 0.3%
Durban University of Technology	Durban University of Technology, 2, 0.3% Durban University of Technology 2 citations, 0.3%
University of Zululand	University of Zululand, 2, 0.3% University of Zululand 2 citations, 0.3%
Andalas University	Andalas University, 2, 0.3% Andalas University 2 citations, 0.3%
Dalhousie University	Dalhousie University, 2, 0.3% Dalhousie University 2 citations, 0.3%
Ekiti State University	Ekiti State University, 2, 0.3% Ekiti State University 2 citations, 0.3%
Ohio State University	Ohio State University, 2, 0.3% Ohio State University 2 citations, 0.3%
Queen's University Belfast	Queen's University Belfast, 2, 0.3% Queen's University Belfast 2 citations, 0.3%
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences	Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 2, 0.3% Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences 2 citations, 0.3%
Xinjiang Agricultural University	Xinjiang Agricultural University, 2, 0.3% Xinjiang Agricultural University 2 citations, 0.3%
McGill University	McGill University, 2, 0.3% McGill University 2 citations, 0.3%
University of Göttingen	University of Göttingen, 2, 0.3% University of Göttingen 2 citations, 0.3%
Purdue University	Purdue University, 2, 0.3% Purdue University 2 citations, 0.3%
University of Potsdam	University of Potsdam, 2, 0.3% University of Potsdam 2 citations, 0.3%
University of Abomey-Calavi	University of Abomey-Calavi, 2, 0.3% University of Abomey-Calavi 2 citations, 0.3%
University of Porto	University of Porto, 2, 0.3% University of Porto 2 citations, 0.3%
Universidade Estadual Paulista	Universidade Estadual Paulista, 2, 0.3% Universidade Estadual Paulista 2 citations, 0.3%
IHE Delft Institute for Water Education	IHE Delft Institute for Water Education, 2, 0.3% IHE Delft Institute for Water Education 2 citations, 0.3%
University of Barcelona	University of Barcelona, 2, 0.3% University of Barcelona 2 citations, 0.3%
University of Nebraska–Lincoln	University of Nebraska–Lincoln, 2, 0.3% University of Nebraska–Lincoln 2 citations, 0.3%
Institut Pierre Simon Laplace	Institut Pierre Simon Laplace, 2, 0.3% Institut Pierre Simon Laplace 2 citations, 0.3%
Institute of Applied Ecology, Chinese Academy of Sciences	Institute of Applied Ecology, Chinese Academy of Sciences, 2, 0.3% Institute of Applied Ecology, Chinese Academy of Sciences 2 citations, 0.3%
China Institute of Water Resources and Hydropower Research	China Institute of Water Resources and Hydropower Research, 2, 0.3% China Institute of Water Resources and Hydropower Research 2 citations, 0.3%
Desert Research Center	Desert Research Center, 2, 0.3% Desert Research Center 2 citations, 0.3%

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Citing countries

	20 40 60 80 100 120 140 160
South Africa	South Africa, 145, 21.74% South Africa 145 citations, 21.74%
Country not defined	Country not defined, 103, 15.44% Country not defined 103 citations, 15.44%
China	China, 70, 10.49% China 70 citations, 10.49%
USA	USA, 57, 8.55% USA 57 citations, 8.55%
United Kingdom	United Kingdom, 30, 4.5% United Kingdom 30 citations, 4.5%
India	India, 24, 3.6% India 24 citations, 3.6%
Germany	Germany, 18, 2.7% Germany 18 citations, 2.7%
Italy	Italy, 18, 2.7% Italy 18 citations, 2.7%
France	France, 16, 2.4% France 16 citations, 2.4%
Australia	Australia, 16, 2.4% Australia 16 citations, 2.4%
Netherlands	Netherlands, 15, 2.25% Netherlands 15 citations, 2.25%
Brazil	Brazil, 12, 1.8% Brazil 12 citations, 1.8%
Zimbabwe	Zimbabwe, 12, 1.8% Zimbabwe 12 citations, 1.8%
Iran	Iran, 10, 1.5% Iran 10 citations, 1.5%
Spain	Spain, 10, 1.5% Spain 10 citations, 1.5%
Ethiopia	Ethiopia, 10, 1.5% Ethiopia 10 citations, 1.5%
Canada	Canada, 9, 1.35% Canada 9 citations, 1.35%
Morocco	Morocco, 9, 1.35% Morocco 9 citations, 1.35%
Kenya	Kenya, 8, 1.2% Kenya 8 citations, 1.2%
Nigeria	Nigeria, 8, 1.2% Nigeria 8 citations, 1.2%
Switzerland	Switzerland, 8, 1.2% Switzerland 8 citations, 1.2%
Portugal	Portugal, 7, 1.05% Portugal 7 citations, 1.05%
Mozambique	Mozambique, 7, 1.05% Mozambique 7 citations, 1.05%
Poland	Poland, 7, 1.05% Poland 7 citations, 1.05%
Russia	Russia, 6, 0.9% Russia 6 citations, 0.9%
Saudi Arabia	Saudi Arabia, 6, 0.9% Saudi Arabia 6 citations, 0.9%
Turkey	Turkey, 6, 0.9% Turkey 6 citations, 0.9%
Ghana	Ghana, 5, 0.75% Ghana 5 citations, 0.75%
Denmark	Denmark, 5, 0.75% Denmark 5 citations, 0.75%
Japan	Japan, 5, 0.75% Japan 5 citations, 0.75%
Indonesia	Indonesia, 4, 0.6% Indonesia 4 citations, 0.6%
Ireland	Ireland, 4, 0.6% Ireland 4 citations, 0.6%
Pakistan	Pakistan, 4, 0.6% Pakistan 4 citations, 0.6%
Peru	Peru, 4, 0.6% Peru 4 citations, 0.6%
Sweden	Sweden, 4, 0.6% Sweden 4 citations, 0.6%
Belgium	Belgium, 3, 0.45% Belgium 3 citations, 0.45%
Benin	Benin, 3, 0.45% Benin 3 citations, 0.45%
Vietnam	Vietnam, 3, 0.45% Vietnam 3 citations, 0.45%
Greece	Greece, 3, 0.45% Greece 3 citations, 0.45%
Egypt	Egypt, 3, 0.45% Egypt 3 citations, 0.45%
Malaysia	Malaysia, 3, 0.45% Malaysia 3 citations, 0.45%
New Zealand	New Zealand, 3, 0.45% New Zealand 3 citations, 0.45%
Romania	Romania, 3, 0.45% Romania 3 citations, 0.45%
Thailand	Thailand, 3, 0.45% Thailand 3 citations, 0.45%
Czech Republic	Czech Republic, 3, 0.45% Czech Republic 3 citations, 0.45%
Chile	Chile, 3, 0.45% Chile 3 citations, 0.45%
Ecuador	Ecuador, 3, 0.45% Ecuador 3 citations, 0.45%
Azerbaijan	Azerbaijan, 2, 0.3% Azerbaijan 2 citations, 0.3%
Argentina	Argentina, 2, 0.3% Argentina 2 citations, 0.3%
Bangladesh	Bangladesh, 2, 0.3% Bangladesh 2 citations, 0.3%
Burkina Faso	Burkina Faso, 2, 0.3% Burkina Faso 2 citations, 0.3%
Hungary	Hungary, 2, 0.3% Hungary 2 citations, 0.3%
Zambia	Zambia, 2, 0.3% Zambia 2 citations, 0.3%
Colombia	Colombia, 2, 0.3% Colombia 2 citations, 0.3%
Malawi	Malawi, 2, 0.3% Malawi 2 citations, 0.3%
Namibia	Namibia, 2, 0.3% Namibia 2 citations, 0.3%
Norway	Norway, 2, 0.3% Norway 2 citations, 0.3%
Panama	Panama, 2, 0.3% Panama 2 citations, 0.3%
Republic of Korea	Republic of Korea, 2, 0.3% Republic of Korea 2 citations, 0.3%
Tanzania	Tanzania, 2, 0.3% Tanzania 2 citations, 0.3%
Eswatini	Eswatini, 2, 0.3% Eswatini 2 citations, 0.3%
Austria	Austria, 1, 0.15% Austria 1 citation, 0.15%
Algeria	Algeria, 1, 0.15% Algeria 1 citation, 0.15%
Bolivia	Bolivia, 1, 0.15% Bolivia 1 citation, 0.15%
Botswana	Botswana, 1, 0.15% Botswana 1 citation, 0.15%
Venezuela	Venezuela, 1, 0.15% Venezuela 1 citation, 0.15%
Guatemala	Guatemala, 1, 0.15% Guatemala 1 citation, 0.15%
Honduras	Honduras, 1, 0.15% Honduras 1 citation, 0.15%
Dominican Republic	Dominican Republic, 1, 0.15% Dominican Republic 1 citation, 0.15%
Cameroon	Cameroon, 1, 0.15% Cameroon 1 citation, 0.15%
Costa Rica	Costa Rica, 1, 0.15% Costa Rica 1 citation, 0.15%
Côte d'Ivoire	Côte d'Ivoire, 1, 0.15% Côte d'Ivoire 1 citation, 0.15%
Kuwait	Kuwait, 1, 0.15% Kuwait 1 citation, 0.15%
Lesotho	Lesotho, 1, 0.15% Lesotho 1 citation, 0.15%
Mexico	Mexico, 1, 0.15% Mexico 1 citation, 0.15%
UAE	UAE, 1, 0.15% UAE 1 citation, 0.15%
Paraguay	Paraguay, 1, 0.15% Paraguay 1 citation, 0.15%
Rwanda	Rwanda, 1, 0.15% Rwanda 1 citation, 0.15%
Senegal	Senegal, 1, 0.15% Senegal 1 citation, 0.15%
Serbia	Serbia, 1, 0.15% Serbia 1 citation, 0.15%
Singapore	Singapore, 1, 0.15% Singapore 1 citation, 0.15%
Syria	Syria, 1, 0.15% Syria 1 citation, 0.15%
Tunisia	Tunisia, 1, 0.15% Tunisia 1 citation, 0.15%
Uruguay	Uruguay, 1, 0.15% Uruguay 1 citation, 0.15%
Croatia	Croatia, 1, 0.15% Croatia 1 citation, 0.15%

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We do not take into account publications without a DOI.
Statistics recalculated daily.