BUAN

Associate Professor Khumoetsile Mmolawa

Associate Professor

Faculty of Agriculture
Department of Agricultural and Biosystems Engineering(ABE)

P/Bag 0027, Gaborone Botswana
3650100
kmmolawa@buan.ac.bw

Khumoetsile Mmolawa is an Irrigation Engineering specialist with the Department of Agricultural and Biosystems Engineering. He holds a PhD (Irrigation Engineering) from Utah State University, USA, MSc (Irrigation Engineering) from the Cranfield Institute of Technology, UK and BSc (Mathematics & Physics) from the University of Botswana. Prof Mmolawa was a student member of the American Society of Agricultural Engineers (ASAE, 1996-2000) and a professional member of the American Society of Agricultural Engineers (ASAE, 2000-2001). He is now a professional engineer registered with the Engineering Registration Board (ERB) in Botswana. He has served as Head of Department, Dean of the Faculty of Agriculture, and Acting Vice Chancellor. He has also served on regional professional bodies such as the Southern African Regional Irrigation Association (SARIA, 2000 - 2007), which is based in Pretoria

Research interest

Soil and Water Dynamics,
Irrigation and Drainage, modelling and Environmental Pollution.

Areas of Specialisation

Irrigation systems design and optimization.
Land drainage and reclamation,
Fluid mechanics,
Hydraulics, Irrigation and Water Conveyance,
Computer Applications in Engineering,
Problem Solving With Spreadsheet

Precipitation Scavenging Studies of Atmospheric Pollutants: A Relation between Meteorological Conditions and Washout Coefficients of Trace Elements and Radioactive Aerosols.

Rain Water harvesting Project in Gakuto Village. Global Environment Facility (GEF) funded project

Desert Margin Research Project, a Global Environmental Facility

funded project.

Decision Support Systems for Agriculture, Environment and Natural Resources Management.

Spatial distribution of concentrations of trace elements in some soils of Botswana and their transfer to plants.

MESA (Monitoring of Environment for security in Africa).

Establishment of Sustainable Mineral Use applied with One-Health Toxicology and Smart-Mining Concept: ZAZINAMBO PROJECT

Revenue diversification pathways in Africa through bio-based and circular agricultural innovations (DIVARGI).

Publications

Selected Journal articles

Mmolawa, K. (2025). Evaluation of soil temperature dynamics under self-regulating low energy clay-based irrigation (SLECI) and conventional drip irrigation systems in South East Botswana. Journal of the Ghana Institution of Engineering (2025) 25? pp 8-18.
Simon P. Kakooza, Khumoetsile B. Mmolawa, Gilbert K. Gaboutloeloe, Anne Clift-hill 2023. Agricultural Drainage Water Assessment for Possible Reuse: A Case Study from Pandamatenga Commercial Arable Farms in Botswana. International Journal for Multidisciplinary Research (IJFMR). Vol.5 (5):1-18, E-ISSN: 2582-2160.
B. Kayombo, R. Tsheko, K.B. Mmolawa and E.B. Khonga 2014.

Inventory of endangered flora and fauna in Bobirwa and Kgalagadi districts of Botswana. Journal of Agriculture and Biodiversity Research. Vol. 3(7): 99 -110, 2014.

Likuku, A.S., Mmolawa K.B., and Gaboutloeloe G. K. 2013. Assessment of Heavy Metal Enrichment and Degree of Contamination Around the Copper-Nickel Mine in the Selebi Phikwe Region, Eastern Botswana. Environment and Ecology Research 1(2): 32-40, 2013

DOI: 10.13189/eer.2013.010202

Likuku, A.S., Gaboutloloe G. K. and Mmolawa K.B. 2013. Determination and Source Apportionment of Selected Heavy Metals in Aerosols Samples Collected from Sebele. American Journal of Environmental Sciences Vol 9(2): pp 188-200.

DOI: 10.3844/ajessp.2013.188.200
Mmolawa, K.B., Likuku A.S. and Gaboutloloe G. K. 2012 A Preliminary Study of Heavy Metal Contamination Along Major Roads in Botswana. International Journal of Environmental Science, Management and Engineering Research Vol 1(1): pp 10 – 19.
Mmolawa, K.B., Likuku A.S and Gaboutloloe G. K 2011 Assessment of Heavy Metal Pollution in Soils Along Major Roadside Areas in Botswana. African Journal of Environmental Science and Technology.Vol5(3): pp 186 – 196
Mmolawa K. B. and D. Or 2000. Root Zone Solute Dynamics Under Drip Irrigation: A Review. Plant and Soil. 222: 163-190.
Mmolawa K. B. and D. Or 2000. Water and Solute Dynamics A Under Drip-Irrigated Crop: Experimental and Analytical Model. Transactions of the ASAE. 43(6):1597-1608

Selected Published Referred Conference Proceedings

Mmolawa, K. B. Estimation of Soil Temperatures Using Air Temperatures: A Case Study For Sir Seretse Khama International Airport Metereological Station: Botswana Institution of Engineers 13th Annual Conference on “ Globally Competitive Research for Innovation Through Engineering and Applied Sciences. ”, 15th -18th October 2013. Lansmore Masa Hotel, Gaborone, Botswana,pp 192-203.

Mmolawa, K.B., Likuku A.S and Gaboutloloe G. K. Reconnaissance Study of Heavy Metal Contamination and Enrichment in Roadside Soils of Botswana In: Environmental Science and Technology 2010 (II), George A. Sorial, and Jihua Hong (Eds.), Science Press, Houston, USA, 2010, pp22-27.
Mmolawa, K. B. 2002. An Evaluation of Potassium Nitrate Dynamics for Cropped and Non-Cropped Conditions: Botswana Institute of Engineers 8th Annual Conference on “ ENGINEERING SYNERGY IN A KNOWLEDGE – BASED ECONOMY”, 31st October and 1st November 2002. Gaborone Sun Hotel, Gaborone, Botswana,pp 125-132.
Mmolawa, K. B., and D. Or. 2000. Evaluation of time domain reflectometry measured soil water dynamics under drip irrigation using Hydrus-2D. BOSHASTED science and technology symposium, 28th June – 1st July, Grand Palm Hotel, Gaborone, Botswana, pp 73-79
Mmolawa, K. B., and D. Or 1999. Water and solute dynamics under drip irrigated crop. P.184. ASA, CSSA, SSSA conference proceedings ASA, Madison, WI. (91st meeting, Salt Lake City, UT, USA)