Mr. H.I.G.S. Piyaruwan

Lecturer

Department of Soil Science,
Faculty of Agriculture, University of Ruhuna,
Mapalana, Kamburupitiya,
Sri Lanka 81100

Research Interests

Qualifications

M.Phil. in Soil Science | University of Ruhuna, Sri Lanka
B.Sc. in Agriculture | University of Ruhuna, Sri Lanka

Biography

Mr. HIGS Piyaruwan is a Lecturer in the Department of Soil Science, Faculty of Agriculture, University of Ruhuna. He holds an M.Phil. degree in Soil Science and a B.Sc. in Agriculture from the University of Ruhuna. His research primarily focuses on Soil Physics, Soil Water dynamics, and Soil Water Repellency in various forest ecosystems in Sri Lanka.

Journal Publications

Total: 3

Leelamanie, D. A. L., Piyaruwan, H. I. G. S., Jayasinghe, P. K. S. C., & Senevirathne, P. A. N. R. (2021). Hydrophysical characteristics in water-repellent tropical Eucalyptus, Pine, and Casuarina plantation forest soils. Journal of Hydrology and Hydromechanics, 69(4), 447–455. https://doi.org/10.2478/johh-2021-0027

View DOI

Piyaruwan, H. I. G. S., Jayasinghe, P. K. S. C., & Leelamanie, D. A. L. (2020). Water repellency in eucalyptus and pine plantation forest soils and its relation to groundwater levels estimated with multi-temporal modeling. Journal of Hydrology and Hydromechanics, 68(4), 382–391. https://doi.org/10.2478/johh-2020-0030

View DOI

Piyaruwan, H. I. G. S., & Leelamanie, D. A. L. (2020). Existence of water repellency and its relation to structural stability of soils in a tropical Eucalyptus plantation forest. Geoderma, 380, 114679. https://doi.org/10.1016/j.geoderma.2020.114679

View DOI

Conference Publications

Total: 11

Liyanage, T. D. P., Leelamanie, D. A. L., Samarawickrama, U. I., & Piyaruwan, H. I. G. S. (2025). Effects of litter mass on Carbon dioxide Emissions and Organic Matter Content in Mahogany Forest Soils. 13th Academic Sessions, University of Ruhuna.

Gowshi, G. J., Leelamanie, D. A. L., & Piyaruwan, H. I. G. S. (2024). Effect of heating temperature and duration of exposure to heat on water repellency of Mahogany forest litter. 8th International Research Conference of Uva Wellassa University (IRCUWU2024).

Sriskandarajah, A., Leelamanie, D. A. L., & Piyaruwan, H. I. G. S. (2023). Effect of water retention by water-repellent and non-water repellent leaf litter under different litter depths and water input levels. 4th National Symposium on Agro-Technology and Rural Sciences, University of Colombo Institute for Agro-Technology and Rural Sciences.

Piyaruwan, H. I. G. S., & Leelamanie, D. A. L. (2022). Fire effects on persistence of soil water repellency in eucalyptus grown soils in upcountry Sri Lanka. 1st Annual Research Session of Faculty of Technology, Eastern University.

Piyaruwan, H. I. G. S., & Leelamanie, D. A. L. (2021). Water-dependent repellency in a Eucalyptus plantation forest soil in upcountry Sri Lanka. International Symposium on Agriculture and Environment 2021, University of Ruhuna, Sri Lanka.

Piyaruwan, H. I. G. S., & Leelamanie, D. A. L. (2018). Seasonal changes of soil water repellency in pine and eucalyptus forest soils in Up country Sri Lanka. 23rd International Forestry and Environment Symposium, University of Sri Jayewardenepura.

Piyaruwan, H. I. G. S., & Leelamanie, D. A. L. (2018). Influence of soil water repellency on initial infiltration rate and unsaturated hydraulic conductivity of an Ultisol under Pinus caribaea. International Research Symposium on Pure and Applied Sciences, University of Kelaniya.

Piyaruwan, H. I. G. S., & Leelamanie, D. A. L. (2018). Soil profile moisture distribution in relation to water repellency in an Upcountry eucalyptus plantation forest soil in Sri Lanka. 15th Academic Sessions, University of Ruhuna.

Piyaruwan, H. I. G. S., & Leelamanie, D. A. L. (2017). Water stability of aggregates in relation to water repellent characteristics in an Eucalyptus (Eucalyptus grandis) forest soil. SLAAS 73rd Annual Sessions 2017.

Piyaruwan, H. I. G. S., & Leelamanie, D. A. L. (2017). Surface water entry water retention of soil in relation to soil water repellency in Ohiya Eucalyptus forest. 14th Academic Sessions, University of Ruhuna.

Leelamanie, D. A. L., Liyanage, T. D. P., & Piyaruwan, H. I. G. S. (2016). Occurrence and distribution of water repellency in soils under Exotic plantation forests in Sri Lanka. 13th Academic Sessions, University of Ruhuna.