Browsing Department of Bio-science by Document type "Conference paper"

Browsing Department of Bio-science by Document type "Conference paper"

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  • Inter-Relationships Between Canopy Openness and Vegetation Diversity in Tropical Rainforests of Sri Lanka Across a Wide Altitudinal Gradient 
    Madhumali, R.M.C.; Wahala, W.M.P.S.B.; Sanjeewani, H.K.N.; Samarasinghe, D.P.; De Costa, W.A.J.M. (Sabaragamuwa University of Sri Lanka, 16-12-20)
    As light transmission is essential for plants in the forest under story, canopy openness (CO) could be closely related to vegetation diversity in tropical rainforests. This study investigated the variation of CO of wet ...
  • INVASION OF Parthenium hysterophorus. L. WEED OVER OTHER COMMON WEEDS IN THE VAVUNIYA DISTRICT, SRI LANKA 
    Arjunan, K.; Nanthakumaran, A.; Yatigammana, S.K.; Devaisy, S. (The Open University of Sri Lanka, 16-09-21)
    Parthenium is a highly invasive weed in Sri Lanka which was initially reported in Vavuniya district and intensely affected the environment. Therefore, this study was carried out to assess the invasion of Parthenium weed ...
  • Long-term temperature trends in Climatological Zones of Sri Lanka 
    Naveendrakumar, G.; Vithanage, M.; Obeysekera, J.; Pathmarajah, S.; Iqbal, M.C.M. (South Eastern University of Sri Lanka, Colombo, Sri Lanka, 13-12-17)
    Ambient temperature in Sri Lanka greatly influences each and every venture throughout the island. The gradual climate change in global scale further worsens the existing situation causing tremendous impacts. Therefore, it ...
  • Long-term trends of temperature in Sri Lanka 
    Naveendrakumar, G.; Obeysekera, J.; Vithanage, M. (Sri Lanka Association for the Advancement of Science (SLAAS), Colombo, Sri Lanka, 04-12-17)
    Even though temperature variation in Sri Lanka is in narrow range, being an island it is vulnerable to the changes happen in the global climate. In this paper, long-term trends in averages and extremes of Sri Lankan ...
  • Mangifera indica leaves as a biosorbent to treat municipal wastewater in Vavuniya District 
    Rishaya, N.M.; Devaisy, S. (Faculty of Applied Science, 2023-10-25)
    The rapid urbanization in Vavuniya town resulted in high volumes of urban drainage which collectively entered into Vavuniya tank located in the heart of Vavuniya town area. The existing treatment system for urban ...
  • Pesticide Use and Health Behaviour of Farmers in Rajanganaya 
    Kumarasinghe, M.A.N.; Nanthakumaran, A.; Kayanan, S. (National Centre for Advanced Studies and Social Sciences, Sri Lanka, 14-12-18)
    Excessive pesticide usage is progressively affecting the well-being of the farming community and the environment. The objective of this study is to investigate the pesticide use and its impact on farmers’ health. The primary ...
  • PHYTOREMEDIATION POTENTIAL OF THREE GRASS SPP. IN A CONSTRUCTED WETLAND SYSTEM 
    Nanthakumaran, A.; Kayanan, S. (South Eastern University of Sri Lanka, 08-12-15)
    Many of the natural systems have been polluted by direct discharge of waste water to the water bodies that causes environmental and health hazards. The surface water resource mainly the tank water gets polluted due to waste ...
  • POLLUTION REDUCTION POTENTIAL OF SUBSURFACE FLOW CONSTRUCTED WETLAND SYSTEM 
    Nanthakumaran, A.; Kayanan, S.; Kishoran, S. (South Eastern University of Sri Lanka, 16-12-21)
    Wetlands have been used as a potentially cost-effective secondary waste water treatment system to treat the waste water before discharge into the water bodies. The aim of this study was to compare the pollution reduction ...
  • Quality comparison of market waste compost 
    Nanthakumaran, A.; Naveendrakumar, G. (Faculty of Applied Sciences, South Eastern University of Sri lanka, 03-12-13)
    Accumulation of a large amount of waste may create several problems to inhabiting populations. Composting is an environment friendly way of waste management. Good quality compost is essential to improve the soil fertility ...
  • Recessive traits of e-learning education environment 
    Denesh, A.Michael; Naveendrakumar, G. (International Conference on Global Education and E - Learning (GLOBED 2017), 10-10-17)
    It is skeptical that electronically administered environment (e-learning) replaces the conventional method of teachings and learning among postgraduate students. Though it depended on multiple factors. Preliminary results ...
  • Removal of Water Hardness from groundwater using Lemon peel derived biochar 
    Hafsa, H.N.F.; Devaisy, S. (Faculty of Applied Science, 2023-10-25)
    Water hardness is the amount of dissolved calcium and magnesium ions in the water. Problems with hardwater include toughening of skin and hair, spots on sinks and clothes, scaling in boilers, washing machines, and ...
  • Rice husk charcoal waste to treat the wastewater discharged by Rubber reclamation industry 
    Thilanka, C.; Devaisy, S. (Faculty of Applied Science, 2023-10-25)
    This study addresses the substantial environmental challenges associated with the rubber reclamation process, characterized by the generation of two prominent waste streams: wastewater and waste burnt rice husk, termed ...
  • Solid Waste Management Issues within Vavuniya Urban Council Limits 
    Kayanan, S.; Basnayake, B.F.A. (University of Peradeniya, Sri Lanka, 28-11-20)
    Rapid increase in population and change in lifestyle have resulted in a dramatic increase in solid waste generation, and its management becomes a challenge for the Local Authorities (LAs) in Sri Lanka, including Vavuniya ...
  • Spatial Variability of Selected Soil Chemical Parameters in Low-yielding Paddy Production Block in Mahaweli System H, Sri Lanka 
    Attanayaka, A.M.S.M.; Akther, M.S.R.; Naveendrakumar, G. (The Department of Forestry and Environmental Science, University of Sri Jayewardenepura, 2023-01-28)
    Although water availability for paddy production in Mahaweli System H is abundant, paddy yield is lower in Nochchiyagama (278 km2), chosen for soil assessment. Paddy yield data were used to identify the low-yielding division ...
  • Status of Human-Leopard Interactions in Nuwara Eliya District within the Central Highlands of Sri Lanka over the Past Twenty Years 
    Kumara, P.H.S.C.; Kittle, A.M.; Watson, A.C.; Sanjeewani, H.K.N.; Perera, S.J. (Sabaragamuwa University of Sri Lanka, 16-12-22)
    Leopard (Panthera parduskotiya) remains the top carnivore in central highlands of Sri Lanka. Human-leopard interactions amplified due to the increased sharing of leopard habitats by humans, especially in plantation landscapes ...
  • A study of the correlation between local meteorology and atmospheric particulate matter in Kandy and Battaramulla in Sri Lanka 
    Batuwita, P.M.; Ranawaka Arachchi, R.A.W.; Santhiyago, P.U.; Jayasundara, J.J.M.A.D.; Naveendrakumar, G. (Faculty of Science University of Kelaniya Sri Lanka., 2023-12-10)
    Air pollution due to particulate matter (PM) remains a significant environmental concern, especially in urban areas. This study examines the relationship between PM concentrations and meteorological parameters of two ...
  • Temperature trends in Sri Lanka 
    Naveendrakumar, G.; Obeysekera, J.; Vithanage, M. (Postgraduate Institute of Science (PGIS), University of Peradeniya, Peradeniya, Sri Lanka, 07-10-16)
    Being a small island and substantially influenced by the temperamental monsoon, Sri Lanka is potentially vulnerable to heat waves. The impacts of such temperature are becoming adverse in the view of the apparent increase ...
  • Treating rice mill effluent using waste rice hull 
    Uduwarage, U.D.T.M.; Devaisy, S. (South Eastern University of Sri Lanka, 2021-11-30)
    In Sri Lanka, about 95% of the population consume rice as their staple food. The increase of the population leads to an increment of the number of rice mills to meet the demand. This resulted in the generation of huge ...
  • Treatment of Aquaculture Effluent through Combined Phytoremediation and Biosorption Techniques 
    Rasanga, K.L.D.C.; Devaisy, S. (General Sir John Kotelawala Defence University, 2022-09-29)
    Aquaculture has significant effects on the environment, the discharge of aquaculture wastewater without treatment causes several environmental impacts such as destruction of natural habitats, reduction in the abundance and ...
  • Treatment of Coir mill wastewater using activated charcoal 
    Amarasuriya, A.P.S.; Karunarathne, D.; Devaisy, S. (Faculty of Applied Science, 2023-10-25)
    The coir mill industry plays a significant role in the national economy, but its wastewater poses a substantial environmental challenge due to its high electrical conduc- tivity (EC), high chemical oxygen demand (COD) ...

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