Archive for February, 2008
« Previous Entries Next Entries »Screening of coconut (Cocos nusifera L.) for drought tolerance
Wednesday, February 13th, 2008Drought causes a substantial reduction in national yield of coconut and also a loss of coconut palms in severe droughts thus resulting in serious economic consequences in the coconut industry in Sri Lanka. Therefore, it is a prime importance to identify some putative drought tolerant genotypes for the use in drought prone areas. The long […]
Elevation of earthworm biomass by organic cultivation practices: Long-term evidence from tea soils
Wednesday, February 13th, 2008Agrochemicals used in conventional agriculture affect soil fauna and flora while organic management i.e. organic matter incorporation, mulching and avoid of synthetic chemicals etc. favor natural soil inhabitants. Amongst them, earthworms are the most effective bio-indicators which signify structural, microclimatic, nutritive properties and health of agricultural soils. Data were generated from soils of the on […]
Development of a rapid environmental assessment methodology for roads sector rehabilitation projects
Wednesday, February 13th, 2008The concern for the environment is ever growing and counter measures are also taken by many countries to minimize environmental impacts arising from developmental activities. One tool utilised to ensure that developments are sustainable is Environmental Impact Assessment (EIA) which has been a mandatory requirement in Sri Lanka since 1993. However, due to considerable time […]
Towards systematic compilation of environmental information: Review of sources of data on environment with special reference to Land Resource
Wednesday, February 13th, 2008Lack of reliable and up-to-date information on environment limits the effective policy and management decisions on natural resources sector. Eventhough the organizations responsible for supplying environmental information are well established, there is no effective mechanism to provide professional service in dissemination and maintenance of systematic date bases on regular basis. The level of accuracy of […]
Sustainable management of land resources
Wednesday, February 13th, 2008Since the dawn of civilization, land and water have been the basic elements of the life support system on our planet. The civilizations flourished well where these natural resources were available in plenty and they declined or perished with their depletion. Civilizations, therefore, learned to respect these resources and found the best ways of using […]
Impacts of climate change on forests in different climatic zones and their implications on sustainable development
Wednesday, February 13th, 2008Atmospheric and meteorological data collected during the last few decades show clear evidence that global climate is undergoing a long-term change. Increasing atmospheric concentrations of greenhouse gases (i.e. CO2, CH4, NOx and CFCs) and the consequent warming of the atmosphere are clear features of long-term climate change. Because of their long life span, these changes […]
Domestic water scarcity and rain water harvesting in non-perennial river basins Sri Lanka, Case-study: Maspotha and Ganewaththa villages in Daduru Oya basin
Wednesday, February 13th, 2008Rainwater Harvester (RWH) has a long history in Sri Lanka. Spatial water scarcity within the intermediate zone has masked by the aggregative statistics. Sufficient number of natural and man made water sources available within the zone. But most of them get dried in advance of dry season. Urbanization and population increase have been amplified the […]
Viable approach towards the sustainable utilization of Negombo lagoon
Wednesday, February 13th, 2008Negombo lagoon is a shallow coastal water body located on the west coast of Sri Lanka with vital economic importance. It has had a long association with the fisheries industry of the country. During the past 25 years development activities associated with the fisheries industry in Negombo lagoon have been taken place without due consideration […]
Impact of forest types on soil properties
Wednesday, February 13th, 2008Soil and vegetation have a complex interrelationship, in which one influences the other. Both in natural forests as well as man-made plantations cycling of nutrients is an important aspect as considerable amount of nutrients are returned through litter fall are made available for re-absorption. The nature and amount of organic matter produced depends on the […]
Performance of seedlings of tree borne oilseeds and their response to fertilization in problem soils
Wednesday, February 13th, 2008The aim of the present investigation was to screen the seedlings of tree borne oilseeds (TBOs) suitable for alkali and saline soils and to optimize their fertilizer requirement under different soil environments. A nursery experiment was conducted at Forest College and Research Institute, Mettupalayam with four TBOs viz., neem, pungam, simaruba and jatropha on three […]
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