Archive for January, 2010
A Study of carbofuran adsorption and leaching in three soil series of Jaffna Peninsula
Thursday, January 21st, 2010N. Gnanavelrajah and T. Kanthasamy,
Carbofuran is a widely used nematicide and insecticide in Jaffna peninsula. Carbofuran is relativelymobile in soil and has the potential to contaminate groundwater. This study examined the adsorptionand leaching potential of carbofuran in three soil series of Jaffna Peninsula. Four replicate soil samplesfrom Chankanai, Inuvil, and Navatkuli series were used for [...]
An Assessment of Groundwater Quality in the Land Area around the University of Sri Jayewardenepura
Thursday, January 21st, 2010B. Dorakumbura, W.D.W Jayathilake
The groundwater quality in the land area around the premises of University of Sri Jayewardenepura which belongs to Boralesgamuwa, Gangodawilla and, Nawinna in Colombo district was investigated. The land area was divided in to 4 clusters depending on the population and water samples from 96 randomly selected domestic wells were obtained during [...]
Growth response of Tobacco (Nicotiana tobaccum) for the enriched organic fertilizer
Thursday, January 21st, 2010N. Kannan, M. Prabhaharan and V. Jayapiratha
The problem of municipal solid waste management is an alarming dimension in Sri Lanka during the last few decades. Due to the population growth and economic development, municipal solid waste per capita is increased daily. In Jaffna the collection and removal of municipal solid waste has become a [...]
Aboveground tree carbon stocks of Lowland evergreen mixed vegetation at Gannoruwa
Thursday, January 21st, 2010P.S. Pathinayake, M.D.P. Kumarathunga, S.P. Nissanka
Conservation of global forests is being considered as one of the sustainable ways of mitigating global warming, because forests are widely perceived to act as major sinks for atmospheric carbon. Estimation of carbon stocks of tropical forests are important for management, planning and for REDD initiatives.Therefore, this study was initiated [...]
Deterioration of soil quality with continuous plantation of teak (Tectona grandis)
Thursday, January 21st, 2010N.T. Diyalawaththa, R.M.D. Alawathugoda and P.I. Yapa
A study was carried out at Rathmale teak Plantation, Thalawa to investigate the cause for the poor growth of teak saplings in a selected area. The study hypothesized that the poor growth and development of second rotation teak is a result of poor physical and chemical properties of the [...]
Effects of abiotic environmental factors on fish yield from traditional stilt fishery in
Thursday, January 21st, 2010M.C.L. Zoysa1and U.P.K. Epa2
Stilt fishing is one of the traditional methods practiced in shallow water only in Southern coastal belt of Sri Lanka. Fishing is done with a rod and line while sitting on a cross bar tied to a wooden pole driven into the coral reef. This method of fishing has existed for more [...]
Biomass estimation in some dry zone forests in Sri Lanka from Forest Inventory Data
Wednesday, January 20th, 2010M.D.P. Kumarathunge and M.C.M. IqbalPlant Biology, Institute of Fundamental Studies, Hantana Road, Kandy, Sri LankaTropical forests are a major sink for carbon dioxide produced globally. Estimation of above-groundbiomass of these forests is an essential aspect of studies of carbon stocks and the effects of carbon sequestration on the global carbon balance. Long term monitoring plots [...]