Items where Author is "De, Silva"

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Number of items: 18.

Journal article

De, Silva, 2010. The effect of using different time steps in a soil water balance model to estimate groundwater recharge in the dry zone of Sri Lanka. Journal of Environmental Hydrology, 18 (22), pp. 1-12.

Jinadasa, SUP and De, Silva, 2009. A comparison of 2-D resistivity imaging and self-potential applications in groundwater investigations in the hard crystalline terrain of Sri Lanka. Journal of the National Science Foundation of Sri Lanka, 37 (1), pp. 23-32.

De, Silva, 2005. Limitations of a soil water budgeting method in estimating groundwater recharge with particular reference to the dry zone of Sri Lanka. Journal of the National Science Foundation of Sri Lanka, 30 (2), pp. 99-113.

De, Silva, 2002. Estimating groundwater recharge using chloride ion as a tracer: a case study in the dry zone of Sri Lanka. Journal of Applied Hydrology (23), pp. 91-99.

De, Silva, 2002. The effect of length of time period considered in estimating groundwater recharge with a soil water budget model. Journal of the National Science Foundation of Sri Lanka, 30 (34), pp. 109-122.

De, Silva, 2001. A comparison of actual and potential recharge of water table in the dry zone of Sri Lanka. Tropical Agricultural Research & Extension Journal, 4 (2), pp. 90-96.

De, Silva, 2000. Modelling the uptake of soil water at different depths by tea (Camellia sinensis) plants. Journal of the National Science Foundation of Sri Lanka, 28 (1), pp. 87-101.

De, Silva and Erwin, Sarath, 2000. Professional agricultural engineer and the Open University agricultural engineering graduate. OUR Engineering Technology Journal, 5 (1), pp. 27-35.

De, Silva, 1999. A review of the use of chloride profiling method in estimating groundwater recharge. SCITECH Nepal Journal, 4 (1), pp. 35-44.

De, Silva, 1998. A review of the methods of estimating groundwater recharge in relation to the dry zone of Sri Lanka. OUR Engineering Technology Journal, 4 (2), pp. 3-13.

De, Silva, 1998. The use of environmental chloride as a tracer in the unsaturated soil zone to estimate groundwater recharge to the dry zone aquifers of Sri Lanka. ENGINEER: Journal of the Institution of Engineers of Sri Lanka (1), pp. 59-71.

Conference contribution

De, Silva, 2009. Effects of climate change on estimates of potential groundwater recharge in the dry zone of Sri Lanka. In: Proceedings of the 14th International Conference on Forestry and Environment, Colombo, Sri Lanka.

De, Silva, 2004. Estimating groundwater recharge in the Deduru Oya catchment using remotely sensed data and geographical information systems. In: United Nations/Pakistan Regional Workshop on Monitoring and Protection of the Natural Environment: Educational Needs and Experience Gained from UN/Sweden Training Courses on Remote Sensing Education for Educators, Islamabad, Pakistan, 2004, Islamabad.

Ariadurai, SA, De, Silva and Ratnaweera, HGPA, 2001. Design of below ground rainwater harvesting tanks. In: The 4th Symposium on Domestic Roof Water Harvesting in the Humid Tropics, Colombo, Sri Lanka, 2001, Colombo.

De, Silva, 1999. Estimating actual evapotranspiration: a study in the dry zone of Sri Lanka. In: Proceedings of the South Asian Countries Conference on 'Challenges To Architects And Civil Engineers During Twenty-First Century', Kathmandu.

De, Silva, 1999. Estimating groundwater recharge with a soil water budget model using different models to estimate actual evapotranspiration in the dry zone of Sri Lanka. In: 55th Annual Sessions, Sri Lanka Association for the Advancement of Science, Colombo, Sri Lanka, 1999, Colombo.

De, Silva, 1999. Significance of preferential flow in estimating groundwater recharge rates with a soil water balance model in the dry zone of Sri Lanka. In: Proceedings of the Argentine Conference on Hydro-geology, Santa Fe.

De, Silva, 1986. Stress analysis of fixed dome bio gas digestors. In: 42nd Annual Sessions, Sri Lanka Association for the Advancement of Science, Colombo, Sri Lanka, 1986, Colombo.

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